USER'S MANUAL - Analog Control Edition

FX3G/FX3U/FX3UC SERIES PROGRAMMABLE CONTROLLERS

Voltage / Current Input

FX3G-2AD-BD
FX3U-4AD
FX3U-4AD-ADP
FX3UC-4AD

Voltage / Current Output

FX3G-1DA-BD
FX3U-4DA
FX3U-4DA-ADP

Temperature Sensor Input

FX3U-4AD-PT-ADP
FX3U-4AD-PTW-ADP
FX3U-4AD-PNK-ADP
FX3U-4AD-TC-ADP
 Safety Precautions
(Read these precautions before use.)

Before installation, operation, maintenance or inspection of this product, thoroughly read through and
understand this manual and all of the associated manuals. Also, take care to handle the module properly and
safely.
This manual classifies the safety precautions into two categories: and .

Indicates that incorrect handling may cause hazardous conditions, resulting in

death or severe injury.

Indicates that incorrect handling may cause hazardous conditions, resulting in

medium or slight personal injury or physical damage.

Depending on the circumstances, procedures indicated by may also cause severe injury.
It is important to follow all precautions for personal safety.
Store this manual in a safe place so that it can be taken out and read whenever necessary. Always forward it
to the end user.

1. DESIGN PRECAUTIONS

• Make sure to have the following safety circuits outside of the PLC to ensure safe system operation even during
external power supply problems or PLC failure.
Otherwise, malfunctions may cause serious accidents.
1) Most importantly, have the following: an emergency stop circuit, a protection circuit, an interlock circuit for
opposite movements (such as normal vs. reverse rotation), and an interlock circuit (to prevent damage to the
equipment at the upper and lower positioning limits).
2) Note that when the PLC CPU detects an error, such as a watchdog timer error, during self-diagnosis, all
outputs are turned off. Also, when an error that cannot be detected by the PLC CPU occurs in an input/output
control block, output control may be disabled.
External circuits and mechanisms should be designed to ensure safe machinery operation in such a case.
3) Note that the output current of the service power supply for sensors varies depending on the model and the
absence/presence of extension blocks. If an overload occurs, the voltage automatically drops, inputs in the
PLC are disabled, and all outputs are turned off.
External circuits and mechanisms should be designed to ensure safe machinery operation in such a case.
4) Note that when an error occurs in a relay, triac or transistor output device, the output could be held either on or
off.
For output signals that may lead to serious accidents, external circuits and mechanisms should be designed to
ensure safe machinery operation in such a case.

• Do not bundle the control line together with or lay it close to the main circuit or power line.
As a guideline, lay the control line at least 100mm(3.94") or more away from the main circuit or power line.
Noise may cause malfunctions.
• Make sure to ground the shield wire or shield of the shielded cable connected to a special analog input adaptor or
special analog extension block at one point on the PLC.
However, do not use common grounding with heavy electrical systems.
Noise may cause malfunctions.
• Make sure to ground the shield wire or shield of the shielded cable connected to a special analog output adaptor
or special analog extension block at one point on the analog device side.
However, do not use common grounding with heavy electrical systems.
Noise may cause malfunctions.
• Install module so that excessive force will not be applied to the power connectors or terminal blocks.
Failure to do so may result in wire damage/breakage or PLC failure.

(1)
 Safety Precautions
(Read these precautions before use.)

2. WIRING PRECAUTIONS

• Make sure to cut off all phases of the power supply externally before attempting wiring work.
Failure to do so may cause electric shock or damages to the product.

• Connect the DC power supply wiring to the dedicated terminals described in this manual.
If an AC power supply is connected to a DC input/output terminal or DC power supply terminal, the PLC will be
burnt out.
• Do not wire vacant terminals externally.
Doing so may damage the product.
• Perform class D grounding (grounding resistance: 100Ω or less) to the grounding terminal on the main unit.
Do not use common grounding with heavy electrical systems.
• When drilling screw holes or wiring, make sure cutting or wire debris does not enter the ventilation slits.
Failure to do so may cause fire, equipment failures or malfunctions.
• Make sure to observe the following precautions in order to prevent malfunctions under the influence of noise:
- Do not bundle the power line or twisted shielded cable together with or lay it close to the main circuit, high-
voltage line, or load line.
Otherwise, noise disturbance and/or surge induction are likely to take place. As a guideline, lay the control line
at least 100mm (3.94") or more away from the main circuit, high-voltage line, or load line.
- Ground the shield of the analog input/output cable at one point on the signal receiving side.
However, do not use common grounding with heavy electrical systems.
• Make sure to properly wire to the European terminal board in accordance with the following precautions.
Failure to do so may cause electric shock, a short-circuit, wire breakage, or damage to the product.
- The disposal size of the cable end should be 9 mm (0.35").
- Tightening torque should be between 0.22 to 0.25 N•m.
- Twist the end of strand wire and make sure there are no loose wires.
- Do not solder-plate the electric wire ends.
- Do not connect more than the specified number of wires or electric wires of unspecified size.
- Affix the electric wires so that neither the terminal block nor the connected parts are directly stressed.

3. STARTUP AND MAINTENANCE PRECAUTIONS

• Do not touch any terminal while the PLC's power is on.

Doing so may cause electrical shock or malfunctions.
• Before cleaning or retightening terminals, cut off all phases of the power supply externally.
Failure to do so may cause electric shock.
• Before modifying or disrupting the program in operation or running the PLC, carefully read through this manual
and the associated manuals and ensure the safety of the operation.
An operation error may damage the machinery or cause accidents.
• Do not change the program in the PLC from two or more peripheral equipment devices at the same time. (i.e. from
a programming tool and a GOT)
Doing so may cause destruction or malfunction of the PLC program.

• Do not disassemble or modify the PLC.

Doing so may cause fire, equipment failures, or malfunctions.
For repair, contact your local Mitsubishi Electric distributor.
• Turn off the power to the PLC before connecting or disconnecting any extension cable.
Failure to do so may cause equipment failures or malfunctions.
• Turn of the power to the PLC before attaching or detaching the peripheral devices, expansion boards, special
adapters, and extension blocks.
Failure to do so may cause equipment failures or malfunctions.

(2)
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition

FX3G/FX3U/FX3UC Series Programmable

Controllers
User's Manual [Analog Control Edition]

Manual number JY997D16701

Manual revision F
Date 11/2008

Foreword
This manual describes the "analog" function of the MELSEC-F FX Series programmable controllers and
should be read and understood before attempting to install or use the unit.
Store this manual in a safe place so that you can take it out and read it whenever necessary. Always forward
it to the end user.

This manual confers no industrial property rights or any rights of any other kind, nor does it confer any patent
licenses. Mitsubishi Electric Corporation cannot be held responsible for any problems involving industrial property
rights which may occur as a result of using the contents noted in this manual.

© 2005 MITSUBISHI ELECTRIC CORPORATION

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition

Outline Precautions
• This manual provides information for the use of the FX3U Series Programmable Controllers. The manual
has been written to be used by trained and competent personnel. The definition of such a person or
persons is as follows;
1) Any engineer who is responsible for the planning, design and construction of automatic equipment
using the product associated with this manual should be of a competent nature, trained and qualified
to the local and national standards required to fulfill that role. These engineers should be fully aware of
all aspects of safety with regards to automated equipment.
2) Any commissioning or service engineer must be of a competent nature, trained and qualified to the
local and national standards required to fulfill that job. These engineers should also be trained in the
use and maintenance of the completed product. This includes being completely familiar with all
associated documentation for the said product. All maintenance should be carried out in accordance
with established safety practices.
3) All operators of the completed equipment should be trained to use that product in a safe and
coordinated manner in compliance to established safety practices. The operators should also be
familiar with documentation which is connected with the actual operation of the completed equipment.
Note: the term 'completed equipment' refers to a third party constructed device which contains or uses
the product associated with this manual
• This product has been manufactured as a general-purpose part for general industries, and has not been
designed or manufactured to be incorporated in a device or system used in purposes related to human life.
• Before using the product for special purposes such as nuclear power, electric power, aerospace, medicine
or passenger movement vehicles, consult with Mitsubishi Electric.
• This product has been manufactured under strict quality control. However when installing the product
where major accidents or losses could occur if the product fails, install appropriate backup or failsafe
functions in the system.
• When combining this product with other products, please confirm the standard and the code, or regulations
with which the user should follow. Moreover, please confirm the compatibility of this product to the system,
machine, and apparatus with which a user is using.
• If in doubt at any stage during the installation of the product, always consult a professional electrical
engineer who is qualified and trained to the local and national standards. If in doubt about the operation or
use, please consult the nearest Mitsubishi Electric distributor.
• Since the examples indicated by this manual, technical bulletin, catalog, etc. are used as a reference,
please use it after confirming the function and safety of the equipment and system. Mitsubishi Electric will
accept no responsibility for actual use of the product based on these illustrative examples.
• This manual content, specification etc. may be changed without a notice for improvement.
• The information in this manual has been carefully checked and is believed to be accurate; however, if you
have noticed a doubtful point, a doubtful error, etc., please contact the nearest Mitsubishi Electric
distributor.

Registration
• Microsoft® and Windows® are either registered trademarks or trademarks of Microsoft Corporation in the
United States and/or other countries.
• The company name and the product name to be described in this manual are the registered trademarks or
trademarks of each company.

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition Table of Contents

Table of Contents
SAFETY PRECAUTIONS .................................................................................................. (1)

Common Items

1. Introduction A-1

1.1 Outline and Features of Analog Control.......................................................................................A-1

1.1.1 Analog input control......................................................................................................................A-2
1.1.2 Analog output control....................................................................................................................A-3
1.1.3 Temperature sensor input control.................................................................................................A-4

2. Description of Analog Products A-5

2.1 Types of Analog Products ............................................................................................................A-5

2.1.1 Expansion board...........................................................................................................................A-5
2.1.2 Special adapter.............................................................................................................................A-6
2.1.3 Special function block...................................................................................................................A-8
2.2 List of Analog Product Models .....................................................................................................A-9
2.2.1 Expansion board...........................................................................................................................A-9
2.2.2 Special adapter.............................................................................................................................A-9
2.2.3 Special function block.................................................................................................................A-10

3. System Configuration Drawings of Analog Products A-12

3.1 FX3U Series PLC .......................................................................................................................A-12

3.1.1 Connection of special adapters ..................................................................................................A-12
3.1.2 Connection of special function blocks ........................................................................................A-13
3.2 FX3UC Series PLC .....................................................................................................................A-14
3.2.1 Connection of special adapters ..................................................................................................A-14
3.2.2 Connection of special function blocks ........................................................................................A-16
3.3 FX3G Series PLC .......................................................................................................................A-18
3.3.1 Connection of expansion boards, special adapters...................................................................A-18
3.3.2 Connection of special function blocks ........................................................................................A-20

4. Comparison of Performance Specifications A-21

4.1 Analog Input ...............................................................................................................................A-21

4.1.1 FX3U-4AD-ADP ..........................................................................................................................A-21
4.1.2 FX2N-2AD...................................................................................................................................A-22
4.1.3 FX3U-4AD...................................................................................................................................A-23
4.1.4 FX2N-4AD...................................................................................................................................A-24
4.1.5 FX3UC-4AD ................................................................................................................................A-25
4.1.6 FX2NC-4AD ................................................................................................................................A-26
4.1.7 FX2N-8AD...................................................................................................................................A-27
4.1.8 FX3G-2AD-BD............................................................................................................................A-28
4.2 Analog Output ............................................................................................................................A-29
4.2.1 FX3U-4DA-ADP ..........................................................................................................................A-29
4.2.2 FX2N-2DA...................................................................................................................................A-30
4.2.3 FX3U-4DA...................................................................................................................................A-31
4.2.4 FX2N-4DA ..................................................................................................................................A-32
4.2.5 FX2NC-4DA ................................................................................................................................A-33
4.2.6 FX3G-1DA-BD............................................................................................................................A-34
4.3 Mixed Analog Input/Output.........................................................................................................A-35
4.3.1 FX2N-5A .....................................................................................................................................A-35
4.3.2 FX0N-3A .....................................................................................................................................A-37
4.4 Temperature Sensor Input .........................................................................................................A-38

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition Table of Contents

4.4.1 FX3U-4AD-PT-ADP ....................................................................................................................A-38

4.4.2 FX3U-4AD-PTW-ADP.................................................................................................................A-39
4.4.3 FX3U-4AD-PNK-ADP .................................................................................................................A-40
4.4.4 FX3U-4AD-TC-ADP ....................................................................................................................A-41
4.4.5 FX2N-4AD-PT.............................................................................................................................A-42
4.4.6 FX2N-4AD-TC.............................................................................................................................A-43
4.4.7 FX2N-8AD...................................................................................................................................A-44
4.4.8 FX2N-2LC ...................................................................................................................................A-45

5. Manual Introduction (Types, Contents, and Obtainment) A-46

5.1 How to Use the Manuals ............................................................................................................A-46

5.2 Description of Related Manuals .................................................................................................A-47
5.2.1 Analog control manuals ..............................................................................................................A-47
5.2.2 Manuals related to the FX3G/FX3U/FX3UC Series PLC main unit..............................................A-47
5.2.3 Manuals of analog units..............................................................................................................A-49

6. Generic Names and Abbreviations in This Manual A-51

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition Table of Contents

FX3U-4AD (4-channel Analog Input)

FX3UC-4AD (4-channel Analog Input)

1. Outline B-3

1.1 Outline of Functions .....................................................................................................................B-3

1.2 Setup Procedure Before Starting Operation ................................................................................B-4
1.3 Connectable PLC and Version Numbers .....................................................................................B-5
1.4 Version Number of Compatible Programming Tools....................................................................B-6

2. Specifications B-7

2.1 Generic Specifications .................................................................................................................B-7

2.2 Power Supply Specifications........................................................................................................B-8
2.3 Performance Specifications .........................................................................................................B-8
2.4 Input Mode (Characteristics) BFM #0 ..........................................................................................B-9

3. Wiring B-11

3.1 Terminal Layout .........................................................................................................................B-12

3.2 Cable and Terminal Tightening Torque......................................................................................B-13
3.2.1 Power cable (FX3UC-4AD) .........................................................................................................B-13
3.2.2 Cable (FX3U-4AD)......................................................................................................................B-13
3.2.3 Cable (FX3UC-4AD)....................................................................................................................B-14
3.3 Examples of Power Supply Circuit .............................................................................................B-15
3.3.1 FX3U-4AD...................................................................................................................................B-15
3.3.2 FX3UC-4AD ................................................................................................................................B-16
3.3.3 Cautions regarding connection of power cables.........................................................................B-16
3.4 Analog Input Line .......................................................................................................................B-17
3.4.1 FX3U-4AD...................................................................................................................................B-17
3.4.2 FX3UC-4AD ................................................................................................................................B-18
3.5 Grounding ..................................................................................................................................B-18

4. Analog Input B-19

4.1 Analog Input Procedures............................................................................................................B-19

5. Buffer Memory (BFM) B-21

5.1 Assignment of Unit Numbers and Outline of Buffer Memory .....................................................B-21

5.2 Buffer Memory Reading/Writing Method ....................................................................................B-23
5.2.1 Buffer memory direct specification (FX3U, FX3UC PLC only).....................................................B-23
5.2.2 FROM/TO instruction (FX3G, FX3U, FX3UC PLC)......................................................................B-23
5.3 Buffer Memory List (BFM) ..........................................................................................................B-24
5.4 Buffer Memory Details................................................................................................................B-28
5.4.1 BFM #0: Input mode specification ..............................................................................................B-28
5.4.2 BFM #2 to #5: Averaging time ....................................................................................................B-29
5.4.3 BFM #6 to #9: Digital filter setting...............................................................................................B-30
5.4.4 BFM #10 to #13: Channel data...................................................................................................B-31
5.4.5 BFM #19: Data change disable ..................................................................................................B-32
5.4.6 BFM #20: Initialization function (resetting to factory default status) ...........................................B-32
5.4.7 BFM #21: Input characteristics writing........................................................................................B-32
5.4.8 BFM #22: Convenient function setting........................................................................................B-33
5.4.9 BFM #26: Upper/lower limit error status .....................................................................................B-35
5.4.10 BFM #27: Abrupt change detection status ...............................................................................B-36

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition Table of Contents

5.4.11 BFM #28: Over-scale status .....................................................................................................B-37

5.4.12 BFM #29: Error status ..............................................................................................................B-38
5.4.13 BFM #30: Model code ..............................................................................................................B-39
5.4.14 BFM #41 to #44: Offset data / BFM #51 to #54: Gain data ......................................................B-39
5.4.15 BFM #61 to #64: Addition data .................................................................................................B-40
5.4.16 BFM #71 to #74: Lower limit error setting / BFM #81 to #84: Upper limit error setting.............B-41
5.4.17 BFM #91 to #94: Abrupt change detection value setting..........................................................B-42
5.4.18 BFM #99: Clearance of upper/lower limit error data and abrupt change detection data ..........B-43
5.4.19 BFM #101 to #104: Minimum peak value / BFM #111 to #114: Maximum peak value ............B-43
5.4.20 BFM #109: Minimum peak value resetting / BFM #119: Maximum peak value resetting.........B-44
5.4.21 BFM #125: Peak value automatic transfer to first data register specification...........................B-44
5.4.22 BFM #126: Upper/lower error status data automatic transfer-to data register specification.....B-45
5.4.23 BFM #127: Abrupt change detection status data automatic transfer-to data register
specification ...........................................................................................................................B-46
5.4.24 BFM #128: Over-scale status data automatic transfer-to data register specification ...............B-47
5.4.25 BFM #129: Error status data automatic transfer-to data register specification.........................B-47
5.4.26 BFM #197: Selection of cyclic data update function (function for data history) ........................B-48
5.4.27 BFM #198: Data history sampling time setting .........................................................................B-48
5.4.28 BFM #199: Data history resetting/stoppage .............................................................................B-49
5.4.29 BFM #200 to #6999: Data history.............................................................................................B-50

6. Changing Input Characteristics B-51

6.1 Procedure for Changing Input Characteristics ...........................................................................B-51

7. Examples of Practical Programs B-54

7.1 Program That Uses Averaging Time..........................................................................................B-54

7.2 Program That Uses Convenient Functions ................................................................................B-56
7.3 Program That Uses Data History Function ................................................................................B-59
7.4 Initialization Program for 4AD (Factory Default).........................................................................B-62

8. Troubleshooting B-63

8.1 PLC Version Number Check ......................................................................................................B-63

8.2 Wiring Check..............................................................................................................................B-63
8.3 Program Check ..........................................................................................................................B-63
8.4 Error Status Check.....................................................................................................................B-64
8.5 4AD Initialization and Test Program...........................................................................................B-65

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition Table of Contents

FX3U-4AD-ADP (4-channel analog Input)

1. Outline C-3

1.1 Outline of Functions .................................................................................................................... C-3

1.2 Setup Procedure Before Starting Operation ............................................................................... C-4
1.3 Connectable PLCs and Version Number .................................................................................... C-5
1.4 Compatible Programming Tool Version Number ........................................................................ C-5

2. Specifications C-6

2.1 Generic Specifications ................................................................................................................ C-6

2.2 Power Supply Specifications....................................................................................................... C-7
2.3 Performance Specifications ........................................................................................................ C-7
2.4 A/D Conversion Time .................................................................................................................. C-8
2.4.1 When connected to a FX3U, FX3UC PLC.................................................................................... C-8
2.4.2 When connected to a FX3G PLC................................................................................................. C-9

3. Wiring C-10

3.1 Terminal Layout ........................................................................................................................ C-11

3.2 Applicable Cables and Terminal Tightening Torque ................................................................. C-12
3.3 Power Supply Line .................................................................................................................... C-13
3.3.1 To connect to the FX3G, FX3U Series PLC ............................................................................... C-13
3.3.2 To connect to the FX3UC Series PLC........................................................................................ C-13
3.4 Analog Input Line ...................................................................................................................... C-14
3.5 Grounding ................................................................................................................................. C-14

4. Programming C-15

4.1 Loading of A/D Conversion Data............................................................................................... C-15

4.2 List of Special Devices .............................................................................................................. C-17
4.3 Switching of Input Mode............................................................................................................ C-18
4.4 Input Data.................................................................................................................................. C-19
4.5 Averaging Time ......................................................................................................................... C-20
4.6 Error Status ............................................................................................................................... C-21
4.7 Model Code............................................................................................................................... C-23
4.8 Basic Program Example............................................................................................................ C-24

5. Changing of Input Characteristics C-26

5.1 Example: Changing of Voltage Input Characteristics................................................................ C-26

6. Troubleshooting C-29

6.1 PLC Version Number Check ..................................................................................................... C-29

6.2 Wiring Check............................................................................................................................. C-29
6.3 Special Device Check ............................................................................................................... C-30
6.4 Program Check ......................................................................................................................... C-30
6.5 Error Status Check.................................................................................................................... C-31

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition Table of Contents

FX3G-2AD-BD (2-channel analog Input)

1. Outline D-3

1.1 Outline of Functions .................................................................................................................... D-3

1.2 Setup Procedure Before Starting Operation ............................................................................... D-4
1.3 Connectable PLCs and Version Number .................................................................................... D-5
1.4 Compatible Programming Tool Version Number ........................................................................ D-5

2. Specifications D-6

2.1 Generic Specifications ................................................................................................................ D-6

2.2 Performance Specifications ........................................................................................................ D-7
2.3 A/D Conversion Time .................................................................................................................. D-8

3. Wiring D-9

3.1 Terminal Layout ........................................................................................................................ D-10

3.2 Applicable Cables and Terminal Tightening Torque ................................................................. D-11
3.3 Analog Input Line ...................................................................................................................... D-12
3.4 Grounding ................................................................................................................................. D-12

4. Programming D-13

4.1 Loading of A/D Conversion Data............................................................................................... D-13

4.2 List of Special Devices .............................................................................................................. D-14
4.3 Switching of Input Mode............................................................................................................ D-14
4.4 Input Data.................................................................................................................................. D-15
4.5 Averaging Time ......................................................................................................................... D-16
4.6 Error Status ............................................................................................................................... D-17
4.7 Model Code............................................................................................................................... D-19
4.8 Basic Program Example............................................................................................................ D-19

5. Changing of Input Characteristics D-20

5.1 Example: Changing of Voltage Input Characteristics................................................................ D-20

6. Troubleshooting D-21

6.1 PLC Version Number Check ..................................................................................................... D-21

6.2 Checking Installation ................................................................................................................. D-21
6.3 Wiring Check............................................................................................................................. D-21
6.4 Special Device Check ............................................................................................................... D-21
6.5 Program Check ......................................................................................................................... D-22
6.6 Error Status Check.................................................................................................................... D-22

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition Table of Contents

FX3U-4DA (4-channel Analog Output)

1. Outline E-3

1.1 Outline of Functions .....................................................................................................................E-3

1.2 Setup Procedure Before Starting Operation ................................................................................E-4
1.3 Connectable PLCs and Version Numbers ...................................................................................E-5
1.4 Version Number of Compatible Programming Tools....................................................................E-5

2. Specifications E-6

2.1 Generic Specifications .................................................................................................................E-6

2.2 Power Supply Specifications........................................................................................................E-7
2.3 Performance Specifications .........................................................................................................E-7
2.4 Output Mode (Characteristics) BFM #0........................................................................................E-8

3. Wiring E-9

3.1 Terminal Layout .........................................................................................................................E-10

3.2 Cable and Terminal Tightening Torque......................................................................................E-10
3.3 Wiring to Power Supply Terminals .............................................................................................E-11
3.3.1 Examples of Power Supply Circuit .............................................................................................E-11
3.3.2 Cautions regarding wiring to the power supply terminals ...........................................................E-11
3.4 Analog Output Wiring .................................................................................................................E-12
3.5 Grounding ..................................................................................................................................E-12

4. Analog Output E-13

4.1 Analog Output Procedures.........................................................................................................E-13

5. Buffer Memory (BFM) E-15

5.1 Assignment of Unit Numbers and Outline of Buffer Memory .....................................................E-15

5.2 Buffer Memory Reading/Writing Method ....................................................................................E-16
5.2.1 Buffer memory direct specification (FX3U, FX3UC PLC only).....................................................E-17
5.2.2 FROM/TO instruction (FX3G, FX3U, FX3UC PLC)......................................................................E-17
5.3 Buffer Memory List (BFM) ..........................................................................................................E-18
5.4 Buffer Memory Details................................................................................................................E-21
5.4.1 BFM #0: Output mode specification ...........................................................................................E-21
5.4.2 BFM #1 to #4: Output data .........................................................................................................E-22
5.4.3 BFM #5: Output setting upon PLC stop......................................................................................E-22
5.4.4 BFM #6: Output status................................................................................................................E-23
5.4.5 BFM #9: Offset/gain setting value write command .....................................................................E-24
5.4.6 BFM #10 to #13: Offset data/BFM #14 to #17: Gain data ..........................................................E-25
5.4.7 BFM #19: Data change prohibition of setting change.................................................................E-26
5.4.8 BFM #20: Initialization function (resetting to factory default status) ...........................................E-27
5.4.9 BFM #28: Disconnection detection status (only in current output mode) ...................................E-27
5.4.10 BFM #29: Error status ..............................................................................................................E-28
5.4.11 BFM #30: Model code ..............................................................................................................E-29
5.4.12 BFM #32 to #35: Data to be output upon PLC stop..................................................................E-29
5.4.13 BFM #38: Upper/lower limit function setting .............................................................................E-30
5.4.14 BFM #39: Upper/lower limit function status ..............................................................................E-31
5.4.15 BFM #40: Clearance of upper/lower limit function status .........................................................E-31
5.4.16 BFM #41 to #44: Lower limit values of upper/lower limit function
BFM #45 to #48: Upper limit values of upper/lower limit function..........................................E-32

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition Table of Contents

5.4.17 BFM #50: Setting of output corrective function by load resistance

(only in voltage output mode)/BFM #51 to #54: Load resistance values ...............................E-33
5.4.18 BFM #60: Status automatic transfer function setting................................................................E-34
5.4.19 BFM #61: Error status data automatic transfer-to data register specification...........................E-35
5.4.20 BFM #62: Upper/lower limit function status data automatic transfer-to data register
specification ...........................................................................................................................E-36
5.4.21 BFM #63: Specification of data register for automatic transfer at disconnection detection ......E-37
5.4.22 BFM #80 to #3098: Table output function ................................................................................E-37

6. Table Output Function E-38

6.1 Outline of Table Output Function ...............................................................................................E-38

6.2 Preparation of data table............................................................................................................E-39
6.3 Procedures for transferring data table to buffer memory ...........................................................E-44
6.4 Procedures for executing table output function..........................................................................E-48
6.5 Details of table output error........................................................................................................E-50
6.6 Examples uses of table output function .....................................................................................E-52

7. Changing Output Characteristic E-53

7.1 Procedure for Changing Output Characteristics ........................................................................E-53

8. Examples of Practical Programs E-56

8.1 Example of Program for Analog Output Operation (Regular Operation)....................................E-56

8.2 Example of Program using Useful Functions .............................................................................E-57
8.3 Example of Program for Table Output Operation (Pattern Output Operation) ...........................E-60
8.4 Program to Initialize FX3U-4DA (Factory Default)......................................................................E-63

9. Troubleshooting E-64

9.1 PLC Version Number Check ......................................................................................................E-64

9.2 Wiring Check..............................................................................................................................E-64
9.3 Program Check ..........................................................................................................................E-64
9.4 Error Status Check.....................................................................................................................E-65
9.5 FX3U-4DA Initialization and Test Program.................................................................................E-66

10
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition Table of Contents

FX3U-4DA-ADP (4-channel analog Output)

1. Outline F-3

1.1 Outline of Functions .....................................................................................................................F-3

1.2 Setup Procedure Before Starting Operation ................................................................................F-4
1.3 Connectable PLCs and Version Numbers ...................................................................................F-5
1.4 Compatible Programming Tool Version Number .........................................................................F-5

2. Specifications F-6

2.1 Generic Specifications .................................................................................................................F-6

2.2 Power Supply Specifications........................................................................................................F-7
2.3 Performance Specifications .........................................................................................................F-7
2.4 D/A Conversion Time ...................................................................................................................F-8
2.4.1 When connected to a FX3U, FX3UC PLC....................................................................................F-8
2.4.2 When connected to a FX3G PLC .................................................................................................F-9

3. Wiring F-10

3.1 Terminal Layout .........................................................................................................................F-11

3.2 Applicable Cables and Terminal Tightening Torque ..................................................................F-12
3.3 Power Supply Line .....................................................................................................................F-13
3.3.1 To Connect to the FX3G, FX3U Series PLC ...............................................................................F-13
3.3.2 To Connect To the FX3UC Series PLC.......................................................................................F-13
3.4 Analog Output Line ....................................................................................................................F-14
3.5 Grounding ..................................................................................................................................F-14

4. Programming F-15

4.1 Writing of D/A Conversion Data .................................................................................................F-15

4.2 List of Special Devices ...............................................................................................................F-17
4.3 Switching of Output Mode ..........................................................................................................F-18
4.4 Output Holding Function Cancellation Setting ...........................................................................F-19
4.5 Output Setting Data....................................................................................................................F-20
4.6 Error Status ................................................................................................................................F-21
4.7 Model Code................................................................................................................................F-23
4.8 Basic Program Example.............................................................................................................F-23

5. Changing of Output Characteristics F-24

5.1 Example: Changing of Voltage Output Characteristics ..............................................................F-24

6. Troubleshooting F-26

6.1 PLC Version Number Check ......................................................................................................F-26

6.2 Wiring Check..............................................................................................................................F-26
6.3 Special Device Check ................................................................................................................F-26
6.4 Program Check ..........................................................................................................................F-27
6.5 Error Status Check.....................................................................................................................F-27

11
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition Table of Contents

FX3G-1DA-BD (1-channel analog Output)

1. Outline G-3

1.1 Outline of Functions .................................................................................................................... G-3

1.2 Setup Procedure Before Starting Operation ............................................................................... G-4
1.3 Connectable PLCs and Version Numbers .................................................................................. G-5
1.4 Compatible Programming Tool Version Number ........................................................................ G-5

2. Specifications G-6

2.1 Generic Specifications ................................................................................................................ G-6

2.2 Performance Specifications ........................................................................................................ G-7
2.3 D/A Conversion Time .................................................................................................................. G-8

3. Wiring G-9

3.1 Terminal Layout ........................................................................................................................ G-10

3.2 Applicable Cables and Terminal Tightening Torque ................................................................. G-11
3.3 Analog Output Line ................................................................................................................... G-12
3.4 Grounding ................................................................................................................................. G-12

4. Programming G-13

4.1 Writing of D/A Conversion Data ................................................................................................ G-13

4.2 List of Special Devices .............................................................................................................. G-14
4.3 Switching of Output Mode ......................................................................................................... G-14
4.4 Output Holding Function Cancellation Setting .......................................................................... G-15
4.5 Output Setting Data................................................................................................................... G-15
4.6 Error Status ............................................................................................................................... G-16
4.7 Model Code............................................................................................................................... G-16
4.8 Basic Program Example............................................................................................................ G-17

5. Changing of Output Characteristics G-18

5.1 Example: Changing of Voltage Output Characteristics ............................................................. G-18

6. Troubleshooting G-19

6.1 PLC Version Number Check ..................................................................................................... G-19

6.2 Checking installation ................................................................................................................. G-19
6.3 Wiring Check............................................................................................................................. G-19
6.4 Special Device Check ............................................................................................................... G-19
6.5 Program Check ......................................................................................................................... G-20
6.6 Error Status Check.................................................................................................................... G-20

12
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition Table of Contents

FX3U-4AD-PT-ADP
(4-channel Platinum Resistance Thermometer Data Input)

1. Outline H-3

1.1 Outline of Functions .................................................................................................................... H-3

1.2 Setup Procedure Before Starting Operation ............................................................................... H-4
1.3 Connectable PLC and Its Version Number ................................................................................. H-5
1.4 Compatible Programming Tool Version Number ........................................................................ H-5

2. Specifications H-6

2.1 Generic Specifications ................................................................................................................ H-6

2.2 Power Supply Specifications....................................................................................................... H-7
2.3 Performance Specifications ........................................................................................................ H-7
2.4 A/D Conversion Time .................................................................................................................. H-8
2.4.1 When connected to a FX3U, FX3UC PLC................................................................................... H-8
2.4.2 When connected to a FX3G PLC ................................................................................................ H-9
2.5 Temperature Measurement......................................................................................................... H-9

3. Wiring H-10

3.1 Terminal Layout ........................................................................................................................ H-11

3.2 Applicable Cable and Terminal Tightening Torque ................................................................... H-12
3.3 Power Supply Line .................................................................................................................... H-13
3.3.1 To connect to FX3G, FX3U Series PLC ..................................................................................... H-13
3.3.2 To Connect To The FX3UC Series PLC .................................................................................... H-13
3.4 Selection of the Platinum Resistance Thermometer Sensor..................................................... H-14
3.5 Wiring of the Platinum Resistance Thermometer Sensor ......................................................... H-14
3.6 Grounding ................................................................................................................................. H-14

4. Programming H-15

4.1 Loading of A/D Conversion Data............................................................................................... H-15

4.2 List of Special Devices .............................................................................................................. H-17
4.3 Selection of Temperature Unit .................................................................................................. H-18
4.4 Temperature Measurement....................................................................................................... H-19
4.5 Averaging Time ......................................................................................................................... H-20
4.6 Error Status ............................................................................................................................... H-21
4.7 Model Code............................................................................................................................... H-24
4.8 Basic Program Example............................................................................................................ H-25

5. Troubleshooting H-26

5.1 PLC Version Number Check ..................................................................................................... H-26

5.2 Wiring Check............................................................................................................................. H-26
5.3 Special Device Check ............................................................................................................... H-26
5.4 Program Check ......................................................................................................................... H-27
5.5 Error Status Check.................................................................................................................... H-27

13
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition Table of Contents

FX3U-4AD-PTW-ADP
(4-channel Platinum Resistance Thermometer Data Input)

1. Outline I-3

1.1 Outline of Functions ...................................................................................................................... I-3

1.2 Setup Procedure Before Starting Operation .................................................................................I-4
1.3 Connectable PLC and Its Version Number ................................................................................... I-5
1.4 Compatible Programming Tool Version Number .......................................................................... I-5

2. Specifications I-6

2.1 Generic Specifications .................................................................................................................. I-6

2.2 Power Supply Specifications......................................................................................................... I-7
2.3 Performance Specifications .......................................................................................................... I-7
2.4 A/D Conversion Time .................................................................................................................... I-8
2.4.1 When connected to a FX3U, FX3UC PLC.....................................................................................I-8
2.4.2 When connected to a FX3G PLCs ................................................................................................ I-9
2.5 Temperature Measurement........................................................................................................... I-9

3. Wiring I-10

3.1 Terminal Layout .......................................................................................................................... I-11

3.2 Applicable Cable and Terminal Tightening Torque ..................................................................... I-12
3.3 Power Supply Line ...................................................................................................................... I-13
3.3.1 To connect to FX3G, FX3U Series PLC ....................................................................................... I-13
3.3.2 To Connect To The FX3UC Series PLC ...................................................................................... I-13
3.4 Selection of the Platinum Resistance Thermometer Sensor....................................................... I-14
3.5 Wiring of the Platinum Resistance Thermometer Sensor ........................................................... I-14
3.6 Grounding ................................................................................................................................... I-14

4. Programming I-15

4.1 Loading of A/D Conversion Data................................................................................................. I-15

4.2 List of Special Devices ................................................................................................................ I-17
4.3 Selection of Temperature Unit .................................................................................................... I-18
4.4 Temperature Measurement......................................................................................................... I-19
4.5 Averaging Time ........................................................................................................................... I-20
4.6 Error Status ................................................................................................................................. I-21
4.7 Model Code................................................................................................................................. I-24
4.8 Basic Program Example.............................................................................................................. I-25

5. Troubleshooting I-26

5.1 PLC Version Number Check ....................................................................................................... I-26

5.2 Wiring Check............................................................................................................................... I-26
5.3 Special Device Check ................................................................................................................. I-26
5.4 Program Check ........................................................................................................................... I-27
5.5 Error Status Check...................................................................................................................... I-27

14
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition Table of Contents

FX3U-4AD-PNK-ADP (4-channel Resistance Thermometer Data Input)

1. Outline J-3

1.1 Outline of Functions ..................................................................................................................... J-3

1.2 Setup Procedure Before Starting Operation ................................................................................ J-4
1.3 Connectable PLC and Its Version Number .................................................................................. J-5
1.4 Compatible Programming Tool Version Number ......................................................................... J-5

2. Specifications J-6

2.1 Generic Specifications ................................................................................................................. J-6

2.2 Power Supply Specifications........................................................................................................ J-6
2.3 Performance Specifications ......................................................................................................... J-7
2.4 A/D Conversion Time ................................................................................................................... J-8
2.4.1 When connected to a FX3U, FX3UC PLC.................................................................................... J-8
2.4.2 When connected to a FX3G PLC ................................................................................................. J-9
2.5 Temperature Measurement.......................................................................................................... J-9

3. Wiring J-10

3.1 Terminal Layout ......................................................................................................................... J-11

3.2 Applicable Cables and Terminal Tightening Torque .................................................................. J-12
3.3 Power Supply Line ..................................................................................................................... J-13
3.3.1 To connect to FX3G, FX3U Series PLC ...................................................................................... J-13
3.3.2 To connect to the FX3UC Series PLC......................................................................................... J-13
3.4 Selection of the Resistance Thermometer Sensor..................................................................... J-14
3.5 Wiring of the Resistance Thermomester Sensor ...................................................................... J-14
3.6 Caution Regarding Wiring .......................................................................................................... J-15
3.7 Grounding .................................................................................................................................. J-15

4. Programming J-16

4.1 Loading of A/D Conversion Data................................................................................................ J-16

4.2 List of Special Devices ............................................................................................................... J-18
4.3 Selection of Temperature Unit ................................................................................................... J-19
4.4 Input sensor selection ................................................................................................................ J-20
4.5 Temperature Measurement........................................................................................................ J-21
4.6 Averaging Time .......................................................................................................................... J-22
4.7 Error Status ................................................................................................................................ J-23
4.8 Model Code................................................................................................................................ J-26
4.9 Basic Program Example............................................................................................................. J-27

5. Troubleshooting J-29

5.1 PLC Version Number Check ...................................................................................................... J-29

5.2 Wiring Check.............................................................................................................................. J-29
5.3 Special Device Check ................................................................................................................ J-29
5.4 Program Check .......................................................................................................................... J-30
5.5 Error Status Check..................................................................................................................... J-30

15
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition Table of Contents

FX3U-4AD-TC-ADP (4-channel Thermocouple Data Input)

1. Outline K-3

1.1 Outline of Functions .....................................................................................................................K-3

1.2 Setup Procedure Before Starting Operation ................................................................................K-4
1.3 Connectable PLC and Its Version Number ..................................................................................K-5
1.4 Compatible Programming Tool Version Number .........................................................................K-5

2. Specifications K-6

2.1 Generic Specifications .................................................................................................................K-6

2.2 Power Supply Specifications........................................................................................................K-6
2.3 Performance Specifications .........................................................................................................K-7
2.4 A/D Conversion Time ...................................................................................................................K-8
2.4.1 When connected to a FX3U, FX3UC PLC....................................................................................K-8
2.4.2 When connected to a FX3G PLC .................................................................................................K-9
2.5 Temperature Measurement..........................................................................................................K-9

3. Wiring K-10

3.1 Terminal Layout .........................................................................................................................K-11

3.2 Applicable Cables and Terminal Tightening Torque ..................................................................K-12
3.3 Power Supply Line .....................................................................................................................K-13
3.3.1 To connect to FX3G, FX3U Series PLC ......................................................................................K-13
3.3.2 To connect to the FX3UC Series PLC.........................................................................................K-13
3.4 Selection of the Thermocouple ..................................................................................................K-14
3.4.1 Thermocouple type.....................................................................................................................K-14
3.4.2 Compensating lead wire .............................................................................................................K-14
3.5 Wiring of Thermocouple .............................................................................................................K-14
3.5.1 Wiring of thermocouple type K ...................................................................................................K-14
3.5.2 Wiring of the thermocouple type J ..............................................................................................K-15
3.6 Caution Regarding Wiring ..........................................................................................................K-15
3.7 Grounding ..................................................................................................................................K-15

4. Programming K-16

4.1 Loading of A/D Conversion Data................................................................................................K-16

4.2 List of Special Devices ...............................................................................................................K-18
4.3 Selection of Temperature Unit ...................................................................................................K-19
4.4 Selection of Type K or J .............................................................................................................K-20
4.5 Temperature Measurement........................................................................................................K-21
4.6 Averaging Time ..........................................................................................................................K-22
4.7 Error Status ................................................................................................................................K-23
4.8 Model Code................................................................................................................................K-26
4.9 Basic Program Example.............................................................................................................K-27

5. Troubleshooting K-29

5.1 PLC Version Number Check ......................................................................................................K-29

5.2 Wiring Check..............................................................................................................................K-29
5.3 Special Device Check ................................................................................................................K-29
5.4 Program Check ..........................................................................................................................K-30
5.5 Error Status Check.....................................................................................................................K-30

16
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition Table of Contents

PID Instruction (FNC 88)

1. Outline L-3

1.1 Outline of function ........................................................................................................................ L-3

1.2 Basic Operation Expressions in PID Instruction (Reference)....................................................... L-4

2. How to Use PID Instruction L-5

2.1 Explanation of function and operation.......................................................................................... L-5

2.2 Relationship Between Parameter Setting and Auto-Tuning......................................................... L-6

3. Parameter L-7

3.1 Parameter List: (S3) to (S3) + 28 ................................................................................................. L-7

3.2 Details of Parameters................................................................................................................... L-9
3.2.1 Sampling time (TS): (S3) .............................................................................................................. L-9
3.2.2 Operation setting (ACT):(S3)+1.................................................................................................. L-10
3.2.3 Input filter (α): (S3)+2 ................................................................................................................. L-12
3.2.4 Proportional gain (KP): (S3)+3.................................................................................................... L-13
3.2.5 Integral time (TI): (S3)+4 ............................................................................................................ L-13
3.2.6 Differential gain (KD): (S3)+5...................................................................................................... L-15
3.2.7 Differential time (TD): (S3)+6...................................................................................................... L-15
3.2.8 Alarm output flag: (S3)+24 ......................................................................................................... L-17

4. Auto-Tuning L-18

4.1 Limit Cycle Method..................................................................................................................... L-18

4.1.1 Parameters set in auto-tuning (of limit cycle method) ................................................................ L-18
4.1.2 Auto-tuning procedure ................................................................................................................ L-19
4.1.3 Reference: How to obtain three constants in PID control (limit cycle method)........................... L-20
4.2 Step Response Method.............................................................................................................. L-21
4.2.1 Parameters to be set by auto-tuning (step response method) ................................................... L-21
4.2.2 Auto-tuning procedure ................................................................................................................ L-21
4.2.3 Reference: How to obtain three constants in PID control (step response method).................... L-22
4.3 Cautions on Auto-Tuning Execution........................................................................................... L-22

5. Example of Practical Programs (for Step Response Method) L-23

5.1 Example: System and operation ................................................................................................ L-23

5.2 Program example of auto-tuning (step response method) and PID control ............................... L-24
5.3 Program example of auto-tuning (step response method)......................................................... L-26

6. Troubleshooting L-28

6.1 Error Codes................................................................................................................................ L-28

Warranty...................................................................................................................................... i

Revised History ......................................................................................................................... ii

17
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition Table of Contents

MEMO

18
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 1 Introduction
Common Items 1.1 Outline and Features of Analog Control

Common Items
1. Introduction
This manual describes the analog products for the FX3G/FX3U/FX3UC Series PLC. B
This chapter describes the analog control methods and applications.

FX3UC-4AD
FX3U-4AD
1.1 Outline and Features of Analog Control
For the FX Series, there are 3 types of analog control: Voltage/Current input, Voltage/Current output, and
Temperature Sensor input.
C

FX3U-4AD-ADP
It is important to select products that are optimum for the purpose of use.

FX3U Series PLC FX3UC Series PLC FX3G Series PLC

FX3G-2AD-BD
E

FX3U-4DA

Voltage/current input
Voltage/current
Temperature sensor
control type output control type input control type
•FX3U-4AD •FX3U-4DA •FX3U-4AD-PT-ADP
•FX3UC-4AD •FX3U-4DA-ADP •FX3U-4AD-PTW-ADP
•FX3U-4AD-ADP
•FX3G-2AD-BD
•FX3G-1DA-BD ••FX3U-4AD-PNK-ADP
•FX3U-4AD-TC-ADP F

FX3U-4DA-ADP
→ Refer to Subsection → Refer to Subsection → Refer to Subsection
1.1.1. 1.1.2. 1.1.3.

FX3G-1DA-BD
Flowmeter, Inverter, etc. Thermocouple,
pressure sensor, etc. platinum resistance
thermometer
sensor

H
FX3U-4AD-PT
-ADP

In addition to the above applications, the FX3U/FX3UC/FX3G Series PLC can be used for various purposes.

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

A-1
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 1 Introduction
Common Items 1.1 Outline and Features of Analog Control

1.1.1 Analog input control

Input the voltage/current signal from a flowmeter, pressure sensor, etc. to the PLC to monitor the condition of
the workpiece or equipment.

FX3U/FX3UC /FX3G Series PLC

Voltage or A/D conversion

Analog input data
current
special function
block, special
adapter,
expansion board

Check the flux rate using

the PLC.
Output the current or voltage
data from the flux rate or the
pressure.

→ To determine whether or not a unit can be connected to the PLC, refer to Chapter 3 "System
Configuration Drawings of Analog Products."

FX3UC Series Analog input products

• FX3UC-4AD
→ For detailed description, refer to Section B.

FX3U Series Analog input products

• FX3U-4AD
→ For detailed description, refer to Section B.
• FX3U-4AD-ADP
→ For detailed description, refer to Section C.

FX3G Series Analog input products

• FX3G-2AD-BD
→ For detailed description, refer to Section D.

Other Series Analog input products

• FX2NC-4AD • FX2N-4AD • FX2N-5A
• FX2N-8AD • FX2N-2AD • FX0N-3A
→ For a detailed description of the other analog input
products, refer to the corresponding manuals.

A-2
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 1 Introduction
Common Items 1.1 Outline and Features of Analog Control

A
1.1.2 Analog output control

Common Items
Output the voltage/current signal from the PLC to an inverter, etc. to control the inverter frequency, etc.

Inverter, etc.
FX3U/FX3UC/FX3G Series PLC

Analog output Voltage or

B
D/A conversion

FX3UC-4AD
FX3U-4AD
data special function current
block, special
adapter,
expansion board

Output the frequency data The frequency will be C

from the PLC. changed depending on

FX3U-4AD-ADP
the input voltage/current.

→ To determine whether or not a unit can be connected to the PLC, refer to Chapter 3 "System
Configuration Drawings of Analog Products."

Analog output products for FX3U Series D

• FX3U-4DA

FX3G-2AD-BD
→ For detailed description, refer to Section E.
• FX3U-4DA-ADP
→ For detailed description, refer to Section F.

Analog output products for FX3G Series E

• FX3G-1DA-BD

FX3U-4DA
→ For detailed description, refer to Section G.

Other Series Analog output products

• FX2NC-4DA • FX2N-2DA • FX0N-3A
• FX2N-4DA • FX2N-5A F
→ For a detailed description of the other analog output

FX3U-4DA-ADP
products, refer to the corresponding manuals.

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

A-3
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 1 Introduction
Common Items 1.1 Outline and Features of Analog Control

1.1.3 Temperature sensor input control

Use the PLC to check the workpiece/machine temperature measured with a thermocouple or platinum
resistance thermometer sensor.

FX3U/FX3UC /FX3G Series PLC

Temperature data Temperature data

(Analog data) Temperature (Digital value)
sensor input,
special function
block or special
adapter

Measure the
temperature of the Check the temperature
equipment. using the PLC.

→ To determine whether or not a unit can be connected to the PLC, refer to Chapter 3 "System
Configuration Drawings of Analog Products."

FX3U Series Temperature sensor input products

• FX3U-4AD-PT-ADP
→ For detailed description, refer to Section H.
• FX3U-4AD-PTW-ADP
→ For detailed description, refer to Section I.
• FX3U-4AD-PNK-ADP
→ For detailed description, refer to Section J.
• FX3U-4AD-TC-ADP
→ For detailed description, refer to Section K.

Other Series Temperature sensor input products

• FX2N-8AD • FX2N-2LC
• FX2N-4AD-TC • FX2N-4AD-PT
→ For a detailed description of the other temperature sensor input products, refer to the
corresponding manuals.

A-4
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 Description of Analog Products
Common Items 2.1 Types of Analog Products

Common Items
2. Description of Analog Products
B
2.1 Types of Analog Products

FX3UC-4AD
FX3U-4AD
Analog input/output products are required to perform analog control using the FX Series PLC.
There are 2 types of input/output products: the expansion board, special adapter and the special function
block.
Subsequent subsections explain differences among analog products. C

FX3U-4AD-ADP
2.1.1 Expansion board
The analog expansion board uses PLC devices to send/receive data to/from the PLC.

1. FX3G Series PLC

• Connect analog expansion boards to option connectors of an FX3G PLC.
D

FX3G-2AD-BD
• Up to 2*1 analog expansion boards can be connected.

PLC

Analog
expansion board E

FX3U-4DA
F
→ For a detailed description of the system configuration, refer to the PLC User’s Manual - Hardware

FX3U-4DA-ADP
Edition.
*1. Only 1 analog special adapter can be connected to the 14-point and 24-point type main unit.
When two analog expansion boards are connected to the 40-point or 60-point type main unit, analog
special adapters are not available in the main unit.
G

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

A-5
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 Description of Analog Products
Common Items 2.1 Types of Analog Products

2.1.2 Special adapter

The analog special adapter uses PLC devices to send/receive data to/from the PLC.

1. FX3U Series PLC

• Connect the special adapter(s) to the left side of the FX3U Series PLC.
• An expansion board is needed to connect the special adapter(s).
• Up to 4 analog special adapters can be connected.
• When using the high-speed input/output special adapter(s), be sure to connect the high-speed input/output
special adapter(s) first, and then connect the analog special adapter(s).
High-speed
Analog special adapters input/output Expansion board PLC
special adapters

FX3U -4AD-ADP FX3U-4AD-ADP FX3U -4AD-ADP FX3U -4AD-ADP

POWER POWER POWER POWER

RDA
RD
RDB

SDA

SD SDB

SG

FX3U-***-BD

"***" represents "422", "232",

Up to 4 Analog adapters can be connected. "485", "CNV", or "USB."
→ For a detailed description of the system configuration, refer to the PLC User’s Manual - Hardware
Edition.

2. FX3UC (D, DSS) Series PLC

• Connect the special adapter(s) to the left side of the FX3UC (D, DSS) Series PLC.
• Up to 4 analog special adapters can be connected.
Analog special adapters PLC

FX3U-4AD-ADP FX3U-4AD-ADP FX3U -4AD-ADP FX3U -4AD-ADP

POWER POWER POWER POWER

Up to 4 Analog adapters can be connected.

→ For a detailed description of the system configuration, refer to the PLC User’s Manual - Hardware
Edition.

A-6
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 Description of Analog Products
Common Items 2.1 Types of Analog Products

A
3. FX3UC-32MT-LT(-2) PLC

Common Items
• Connect the special adapter(s) to the left side of the FX3UC-32MT-LT(-2) PLC.
• An expansion board is needed to connect the special adapter(s).
• Up to 4 analog special adapters can be connected.
Analog special adapters Expansion board PLC
B

FX3UC-4AD
FX3U-4AD
FX3U-4AD-ADP FX 3U -4AD-ADP FX3U -4AD-ADP FX3U -4AD-ADP
POWER POWER POWER POWER

RDA
RD
RDB

SDA

SD SDB

SG

FX3U-***-BD
C

FX3U-4AD-ADP
Up to 4 Analog adapters can be connected. "***" represents "422", "232", "485", "CNV", or "USB."

→ For a detailed description of the system configuration, refer to the PLC User’s Manual - Hardware Edition.

D
4. FX3G Series PLC

FX3G-2AD-BD
• Connect the special adapter(s) to the left side of the FX3G Series PLC.
• A connector conversion board is needed to connect the special adapter(s).
• Up to 2*1 analog special adapters can be connected.
Analog
special adapters
Connector conversion adapter PLC E

FX3U-4DA
F

FX3U-4DA-ADP
FX3G-CNV-ADP

Up to 2 Analog adapters can be connected.

→ For a detailed description of the system configuration, refer to the PLC User’s Manual - Hardware Edition.
*1. Only 1 analog special adapter can be connected to the 14-point and 24-point type main unit.
G

FX3G-1DA-BD
When two analog expansion boards are connected to the 40-point or 60-point type main unit, analog
special adapters are not available in the main unit.

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 Description of Analog Products
Common Items 2.1 Types of Analog Products

2.1.3 Special function block

The special function block uses buffer memory (BFM) to send/receive data to/from the PLC.

1. FX3U Series PLC

• Connect the special function block(s) to the right side of the FX3U Series PLC.
• Up to 8 special function blocks can be connected.
PLC Analog special function block
for FX3U, FX2N and FX0N

Up to 8 special function units/blocks can be

connected (excluding the special adapters).
→ For a detailed description of the system configuration, refer to the PLC User’s Manual - Hardware Edition.

2. FX3UC Series PLC

• Connect the special function block(s) to the right side of the FX3UC Series PLC.
• In some cases, FX2NC-CNV-IF or FX3UC-1PS-5V may be needed for connection.
• Up to 8*1 special function blocks can be connected.
PLC FX3UC or FX2NC Analog FX3U, FX2N or FX0N Analog
special function block FX3UC-1PS-5V special function block
or
FX2NC-CNV-IF

Up to 8*1 special function units/blocks can be connected (excluding the special adapters).

*1. Up to 7 special function units/blocks can be connected to the FX3UC-32MT-LT(-2) PLC.

Select either FX3UC-1PS-5V or FX2NC-CNV-IF considering the current components consumption.
→ For a detailed description of the system configuration, refer to the PLC User’s Manual - Hardware Edition.

3. FX3G Series PLC

• Connect the special function block(s) to the right side of the FX3G Series PLC.
• Up to 8 special function blocks can be connected.

PLC Analog special function block

for FX3U and FX2N

Up to 8 special function units/blocks can be

connected (excluding the special adapters).

→ For a detailed description of the system configuration, refer to the PLC User's Manual - Hardware Edition.

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 Description of Analog Products
Common Items 2.2 List of Analog Product Models

A
2.2 List of Analog Product Models

Common Items
The analog input/output products compatible with the FX3U/FX3UC/FX3G Series PLC are described below:

2.2.1 Expansion board

B
• FX3G Series PLC

FX3UC-4AD
FX3U-4AD
No. of Refer-
Type Range Resolution Function
channels ence
Voltage/current input

FX3G-2AD-BD 2ch
Voltage: 0V to 10V DC 2.5mV(12bits) Combined use of voltage and
D
C
current inputs is possible.

FX3U-4AD-ADP
Current: 4mA to 20mA DC 8µA(11bits)
Voltage/current output
Voltage: 0V to 10V DC 2.5mV(12bits)
FX3G-1DA-BD 1ch Voltage and current output. G
Current: 4mA to 20mA DC 8µA(11bits)
D
2.2.2 Special adapter

FX3G-2AD-BD
No. of Refer-
Type Range Resolution Function
channels ence
Voltage/current input

FX3U-4AD-ADP 4ch
Voltage: 0V to 10V DC 2.5mV(12bits) Combined use of voltage and
C
E
Current: 4mA to 20mA DC 10µA(11bits) current inputs is possible.

FX3U-4DA
Voltage/current output
Voltage: 0V to 10V DC 2.5mV(12bits) Combined use of voltage and
FX3U-4DA-ADP 4ch F
Current: 4mA to 20mA DC 4µA(12bits) current outputs is possible.
Temperature sensor input F
Compatible with the platinum

FX3U-4DA-ADP
resistance thermometer
sensor (Pt100).
FX3U-4AD-PT-ADP 4ch Pt100: -50°C to +250°C 0.1°C H
The product can be switched
between "Centigrade" and
"Fahrenheit."
Compatible with the platinum
G

FX3G-1DA-BD
resistance thermometer
sensor (Pt100).
FX3U-4AD-PTW-ADP 4ch Pt100: -100°C to +600°C 0.2°C to 0.3°C I
The product can be switched
between "Centigrade" and
"Fahrenheit."

Pt1000: -50°C to +250°C

Compatible with the input H
sensor (Pt1000 and Ni1000).
FX3U-4AD-PT

FX3U-4AD-PNK-ADP 4ch 0.1°C The product can be switched J

Ni1000: -45°C to +115°C between "Centigrade" and
"Fahrenheit."
-ADP

Compatible with
Type K: -100°C to +1000°C 0.4°C
FX3U-4AD-TC-ADP 4ch
thermocouple types K and J.
The product can be switched K
I
FX3U-4AD-PTW

Type J: -100°C to +600°C 0.3°C between "Centigrade" and

"Fahrenheit."
-ADP

J
FX3U-4AD-PNK
-ADP

A-9
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 Description of Analog Products
Common Items 2.2 List of Analog Product Models

2.2.3 Special function block

No. of Refer-
Type Range Resolution Function
channels ence
Voltage/current input
Voltage: 0.32mV Combined use of voltage and
-10V to +10V DC (with sign, 16 bits) current inputs is possible. The
FX3U-4AD*1 4ch offset/gain can be adjusted.*3 B
Current: 1.25µA
The sampling function is
-20mA to +20mA DC (with sign, 15 bits)
incorporated.
Voltage: 0.32mV Combined use of voltage and
-10V to +10V DC (with sign, 16 bits) current inputs is possible. The
FX3UC-4AD*2 4ch offset/gain can be adjusted.*3 B
Current: 1.25µA
The sampling function is
-20mA to +20mA DC (with sign, 15 bits)
incorporated.
Voltage: 0.32mV Combined use of voltage and
-10V to +10V DC (with sign, 16 bits) current inputs is possible.
The offset/gain can be
FX2NC-4AD*2 4ch *5
Current: 1.25µA adjusted.*3
-20mA to +20mA DC (with sign, 15 bits) The sampling function is
incorporated.
Voltage: 0.63mV Combined use of voltage,
-10V to +10V DC (with sign, 15 bits) current, and thermocouple is
possible. The offset/gain can be
FX2N-8AD*1 8ch *5
Current: 2.5µA adjusted.*3
-20mA to +20mA DC (with sign, 14 bits) The sampling function is
incorporated.
Voltage: 5mV
-10V to +10V DC (with sign, 12 bits) Combined use of voltage and
FX2N-4AD*1 4ch current inputs is possible. *5
Current: 10µA The offset/gain can be adjusted.
-20mA to +20mA DC (with sign, 11 bits)
Voltage: 2.5mV Combined use of voltage and
0V to 10V DC (12bits) current inputs is impossible.
FX2N-2AD*1 2ch *5
Current: 4µA The offset/gain can be adjusted.
4mA to 20mA DC (12bits) (Common to 2 input channels)
Voltage/current output
Voltage: 0.32mV
Combined use of voltage and
-10V to +10V DC (with sign, 16 bits)
FX3U-4DA*1 4ch current outputs is possible.*4 E
Current: 0.63µA
The offset/gain can be adjusted.
0mA to 20mA DC (15bits)
Voltage: 5mV
-10V to +10V DC (with sign, 12 bits) Combined use of voltage and
FX2NC-4DA*2 4ch current outputs is possible. *5
Current: 20µA The offset/gain can be adjusted.
0mA to 20mA DC (10bits)
Voltage: 5 mV
-10V to +10V DC (with sign, 12 bits) Combined use of voltage and
FX2N-4DA*1 4ch current outputs is possible. *5
Current: 20µA The offset/gain can be adjusted.
0mA to 20mA DC (10bits)
Voltage: 2.5 mV
0V to 10V DC (12 bits) Combined use of voltage and
FX2N-2DA*1 2ch current outputs is possible. *5
Current: 4µA The offset/gain can be adjusted.
4mA to 20mA DC (12bits)
*1. To connect this block to the FX3UC Series PLC, either the FX2NC-CNV-IF or FX3UC-1PS-5V is required.
*2. Connectable with the FX3UC Series PLC only.
*3. The offset and gain of the FX3U-4AD, FX3UC-4AD, FX2NC-4AD and FX2N-8AD cannot be adjusted for
channels using the analog value direct indication mode.
*4. The offset and gain of the FX3U-4DA cannot be adjusted for channels using the analog value mV (or µA)
specification mode.
*5. Refer to the instruction manual of the respective product.

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 Description of Analog Products
Common Items 2.2 List of Analog Product Models

A
No. of Refer-

Common Items
Type Range Resolution Function
channels ence
Voltage/current input/output mixture
Voltage: 0.32mV
Input -10V to +10V DC (with sign, 16 bits) Combined use of voltage and
4ch Current: 1.25µA current is possible. B
-20mA to +20mA DC (with sign, 15 bits) The offset/gain can be

FX3UC-4AD
FX3U-4AD
FX2N-5A*1 *2
Voltage: 5mV adjusted.*3
Output -10V to +10V DC (with sign, 12 bits) The scaling function is
1ch Current: 20µA incorporated.
0mA to 20mA DC (10bits)

Input
Voltage:
0V to 10V DC
40mV
(8bits)
C

FX3U-4AD-ADP
2ch Current: 64µA The input format is common to 2
4mA to 20mA DC (8bits) channels.
FX0N-3A*1, *4 *2
Voltage: 40mV The offset/gain can be adjusted.
Output 0V to 10V DC (8bits) (Common to 2 input channels)
1ch Current:
4mA to 20mA DC
64µA
(8bits) D

FX3G-2AD-BD
Temperature sensor input
Type K: Combined use of voltage,
0.1°C
-100°C to +1200°C current, and thermocouple is
Type J: possible.
0.1°C Compatible with thermocouple
-100°C to +600°C
FX2N-8AD*1 8ch types K, J, and T. *2 E
The unit can be switched between

FX3U-4DA
Type T: "Centigrade" and "Fahrenheit."
0.1°C
-100°C to +350°C The sampling function is
incorporated.
Type K: Compatible with thermocouple
0.4°C
-100°C to +1200°C types K and J.
FX2N-4AD-TC*1 4ch
Type J: The unit can be switched between
*2 F
0.3°C "Centigrade" and "Fahrenheit."

FX3U-4DA-ADP
-100°C to +600°C
Compatible with the platinum
resistance thermometer sensor
Pt100:
FX2N-4AD-PT*1 4ch 0.2°C to 0.3°C (Pt100 or JPt100). *2
-100°C to +600°C
The unit can be switched between
"Centigrade" and "Fahrenheit." G
Example: Compatible with thermocouple

FX3G-1DA-BD
Type K: types K, J, R, S, E, T, B, N, PL II,
-100°C to +1300°C WRe5-26, U, and L.
Compatible with the platinum
resistance thermometer sensor
(Pt100, JPt100).
0.1°C or 1°C The unit can be switched between H
FX2N-2LC*1 2ch (Depends on the "Centigrade" and "Fahrenheit." *2
FX3U-4AD-PT

Pt100: sensor input range.) The temperature adjustment

-200°C to +600°C function (PID operation, etc.) is
incorporated.
-ADP

The peak disconnection

detection function is
incorporated. I
(A CT sensor is needed.)
FX3U-4AD-PTW

*1. To connect this block to the FX3UC Series PLC, either the FX2NC-CNV-IF or FX3UC-1PS-5V is required.
*2. Refer to the instruction manual of the respective product.
-ADP

*3. The offset and gain of the FX2N-5A cannot be adjusted for channels using the analog value direct
indication mode or analog value mV (or µA) specification mode. J
*4. The FX0N-3A cannot be connected to the FX3G Series PLC.
FX3U-4AD-PNK
-ADP

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 System Configuration Drawings of Analog Products
Common Items 3.1 FX3U Series PLC

3. System Configuration Drawings of Analog Products

This section shows drawings to describe the configuration of analog units for the FX3U/FX3UC/FX3G Series
PLC.

3.1 FX3U Series PLC

3.1.1 Connection of special adapters

FX3U Series

A C To connect special function blocks C , refer to the next page.

B

A , B , and C represent the connecting positions.

For a detailed installation description, refer to the following manual supplied with
your PLC.
Refer to the FX3U Series User's Manual - Hardware Edition.
B A
Analog input
RDA

• Flowmeter
RD
RDB

SD
SDA

SDB
European terminal block
• Pressure sensor
SG

• Signal converter, etc.

FX3U-***-BD*1 FX3U-4AD-ADP

A
Up to 4 analog special adapters can be connected.

Analog output
European terminal block
• Inverter, etc.

FX3U-4DA-ADP

A
Temperature sensor
input
European terminal block
• Thermocouple
(types K and J)
FX3U-4AD-TC-ADP

A
Temperature sensor
input
European terminal block • Resistance
thermometer
sensor (Pt1000 and
FX3U-4AD-PNK-ADP Ni1000)

A
Temperature sensor
input
European terminal block • Platinum resistance
thermometer
FX3U-4AD-PT-ADP sensor (Pt100)
FX3U-4AD-PTW-ADP

*1. An FX3U-232-BD, FX3U-485-BD, FX3U-422-BD, FX3U-USB-BD, or FX3U-CNV-BD is needed to

connect the special adapters.

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 System Configuration Drawings of Analog Products
Common Items 3.1 FX3U Series PLC

A
3.1.2 Connection of special function blocks

Common Items
FX3U Series A , B , and C represent the connecting positions.
For a detailed description of installation, refer to the following manual
supplied with your PLC.
A
B C → Refer to the FX3U Series User's Manual - Hardware Edition. B

FX3UC-4AD
FX3U-4AD
To connect the special adapters A or the expansion boards B ,
refer to the previous page.

C
Up to 8 special function blocks can be connected.

FX3U-4AD-ADP
Analog input
C • Flowmeter
• Pressure sensor
• Signal converter,
etc.
Terminal block
D
Analog output

FX3G-2AD-BD
Special function • Inverter, etc.
block for FX3U,
FX2N and FX0N
Temperature sensor
input
• Thermocouple
• Platinum resistance E
thermometer

FX3U-4DA
sensor (Pt100)

• For a detailed description of the connectable special function blocks and system configuration:
→ Refer to the FX3U Series User's Manual - Hardware Edition. F

FX3U-4DA-ADP
The analog special function blocks shown in the table below can be connected to the FX3U Series PLC:

FX Series Type
Analog special function blocks for
FX3U-4AD, FX3U-4DA
the FX3U
G
Analog special function blocks for FX2N-8AD, FX2N-4AD, FX2N-2AD, FX2N-4DA, FX2N-2DA, FX2N-5A,

FX3G-1DA-BD
the FX2N FX2N-4AD-PT, FX2N-4AD-TC, FX2N-2LC
Analog special function blocks for
FX0N-3A
the FX0N

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 System Configuration Drawings of Analog Products
Common Items 3.2 FX3UC Series PLC

3.2 FX3UC Series PLC

3.2.1 Connection of special adapters

1. FX3UC (D, DSS) Series PLC

To connect the special function blocks C or the conversion adapters D ,

A C1 D C2
refer to Subsection 3.2.2-1.

A , C represent the connecting positions.

For a detailed description of installation, refer to the following manual supplied with to
your PLC.
→ Refer to the FX3UC Series User's Manual - Hardware Edition.
A
Analog input
•Flowmeter
European terminal block
•Pressure sensor
•Signal converter, etc.
FX3U-4AD-ADP

Analog output
Up to 4 analog special adapters can be connected.

European terminal block

•Inverter, etc.

FX3U-4DA-ADP

A
Temperature sensor
input
European terminal block
•Thermocouple
(types K and J)
FX3U-4AD-TC-ADP

A
Temperature sensor
input
European terminal block •Resistance
thermometer
sensor (Pt1000
and Ni1000)
FX3U-4AD-PNK-ADP

A
Temperature sensor
input
European terminal block •Platinum resistance
thermometer
sensor (Pt100)
FX3U-4AD-PT-ADP
FX3U-4AD-PTW-ADP

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 System Configuration Drawings of Analog Products
Common Items 3.2 FX3UC Series PLC

A
2. FX3UC-32MT-LT(-2) PLC

Common Items
To connect the special function blocks C or the conversion adapters D ,
A C1 D C2
refer to Subsection 3.2.2-2.
B

A , B , and C represent the connecting positions.

B

FX3UC-4AD
FX3U-4AD
For a detailed description of installation, refer to the following manual supplied with to
your PLC.
→ Refer to the FX3UC Series User's Manual - Hardware Edition.
B A

Analog input
C
RDA
RD
RDB

European terminal block

•Flowmeter
SDA

SD SDB

SG

•Pressure sensor

FX3U-4AD-ADP
FX3U-***-BD*1 FX3U-4AD-ADP •Signal converter, etc.

Analog output D
Up to 4 analog special adapters can be connected.

European terminal block

•Inverter, etc.

FX3G-2AD-BD
FX3U-4DA-ADP

A
Temperature sensor
input
E

FX3U-4DA
European terminal block
•Thermocouple
(types K and J)
FX3U-4AD-TC-ADP

A
Temperature sensor F
input

FX3U-4DA-ADP
European terminal block •Resistance
thermometer
sensor (Pt1000
and Ni1000)
FX3U-4AD-PNK-ADP

A
G

FX3G-1DA-BD
Temperature sensor
input
European terminal block •Platinum resistance
thermometer
sensor (Pt100)
FX3U-4AD-PT-ADP
FX3U-4AD-PTW-ADP H
FX3U-4AD-PT

*1. An FX3U-232-BD, FX3U-485-BD, FX3U-422-BD, FX3U-USB-BD, or FX3U-CNV-BD is needed to

connect the special adapters.
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

A-15
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 System Configuration Drawings of Analog Products
Common Items 3.2 FX3UC Series PLC

3.2.2 Connection of special function blocks

1. FX3UC (D, DSS) Series PLC

A , C , and D represent the connecting positions.
For a detailed description of installation, refer to the following manual supplied with
A C1 D C2 to your PLC.
→ Refer to the FX3UC Series User's Manual - Hardware Edition.

To connect the special adapters A refer to Subsection 3.2.1-1.

C1

European terminal block

FX3UC-4AD

C1
Up to 8 special function blocks can be connected.

European terminal block

Analog input
Special function •Flowmeter
block for FX2NC C1 •Pressure sensor
•Signal converter, etc.
European terminal block
Analog output
•Inverter, etc.
FX3UC-4AD
Temperature sensor
C1 input
•Thermocouple
D •Platinum resistance
European terminal block
thermometer
sensor (Pt100)

C1 or C2 Special function
block for FX2NC

FX3UC-1PS-5V
C2

Terminal block

Special function
block for FX3U,
FX2NC-CNV-IF FX2N and FX0N

• For a detailed description of special function block connectability and system configuration:
→ Refer to the FX3UC Series User's Manual - Hardware Edition.
• Use the FX3UC-1PS-5V (extension power supply unit) if the capacity of the 5V DC power supply unit
incorporated in the FX3UC Series PLC is deteriorated.
→ Refer to the FX3UC Series User's Manual - Hardware Edition.
The analog special function blocks shown in the table below can be connected to the FX3UC Series PLC:
FX Series Type
Analog special function blocks for the FX3U FX3U-4AD, FX3U-4DA
Analog special function blocks for the FX2NC FX2NC-4AD, FX2NC-4DA
FX2N-8AD, FX2N-4AD, FX2N-2AD, FX2N-4DA, FX2N-2DA,
Analog special function blocks for the FX2N
FX2N-5A, FX2N-4AD-PT, FX2N-4AD-TC, FX2N-2LC
Analog special function blocks for the FX0N FX0N-3A

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 System Configuration Drawings of Analog Products
Common Items 3.2 FX3UC Series PLC

A
2. FX3UC-32MT-LT(-2) PLC

Common Items
A , B , C , and D represent the connecting positions.
For a detailed description of installation, refer to the following manual supplied with
A C1 D C2 your PLC.
B
→ Refer to the FX3UC Series User's Manual - Hardware Edition.
To connect the special adapters A or the expansion boards B , B
refer to Subsection 3.2.1-2.

FX3UC-4AD
FX3U-4AD
C1

European terminal block

FX3U-4AD-ADP
FX3UC-4AD

C1
Up to 7 special function blocks can be connected.

European terminal block D

Analog input

FX3G-2AD-BD
Special function •Flowmeter
block for FX2NC C1 •Pressure sensor
•Signal converter, etc.
European terminal block
Analog output E
•Inverter, etc.

FX3U-4DA
FX3UC-4AD
Temperature sensor
C1 input
•Thermocouple
•Platinum resistance
D
European terminal block
thermometer
sensor (Pt100)
F

FX3U-4DA-ADP
C1 or C2 Special function
block for FX2NC

FX3UC-1PS-5V
C2
G
D

FX3G-1DA-BD
Terminal block

Special function
block for FX3U,
FX2NC-CNV-IF FX2N and FX0N
H
FX3U-4AD-PT

• For a detailed description of special function block connectability and system configuration:
→ Refer to the FX3UC Series User's Manual - Hardware Edition.
• Use the FX3UC-1PS-5V (extension power supply unit) if the capacity of the 5V DC power supply unit
-ADP

incorporated in the FX3UC Series PLC is deteriorated.

→ Refer to the FX3UC Series User's Manual - Hardware Edition.
The analog special function blocks shown in the table below can be connected to the FX3UC Series PLC: I
FX3U-4AD-PTW

FX Series Type
Analog special function blocks for the FX3U FX3U-4AD, FX3U-4DA
Analog special function blocks for the FX2NC FX2NC-4AD, FX2NC-4DA
-ADP

FX2N-8AD, FX2N-4AD, FX2N-2AD, FX2N-4DA, FX2N-2DA,

Analog special function blocks for the FX2N
FX2N-5A, FX2N-4AD-PT, FX2N-4AD-TC, FX2N-2LC
J
Analog special function blocks for the FX0N FX0N-3A
FX3U-4AD-PNK
-ADP

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 System Configuration Drawings of Analog Products
Common Items 3.3 FX3G Series PLC

3.3 FX3G Series PLC

3.3.1 Connection of expansion boards, special adapters

1. FX3G Series PLC (14-point, 24-point type)

FX3G Series
and represent the connecting positions.
For a detailed description of installation, refer to the following manual
supplied with your PLC.
Refer to the FX3G Series User's Manual - Hardware Edition.

1st
board Analog input
Flowmeter
European terminal block
Up to 1 analog expansion board, analog special adapters can be connected.

Pressure sensor
Signal converter, etc.
FX3G-2AD-BD

1st
board

European terminal block Analog output

Inverter, etc.

FX3G-1DA-BD

1st
adapter Analog input
Flowmeter
European terminal block
Pressure sensor
Signal converter, etc.
FX3G-CNV-ADP FX3U-4AD-ADP

1st
adapter
Analog output
European terminal block
Inverter, etc.

FX3U-4DA-ADP

1st Temperature sensor

adapter input
Thermocouple
European terminal block (types K and J)
Resistance
FX3U-4AD-TC-ADP thermometer sensor
FX3U-4AD-PNK-ADP (Pt1000 and Ni1000)
FX3U-4AD-PT-ADP Platinum resistance
FX3U-4AD-PTW-ADP thermometer
sensor (Pt100)

A-18
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 System Configuration Drawings of Analog Products
Common Items 3.3 FX3G Series PLC

A
2. FX3G Series PLC (40-point, 60-point type)

Common Items
A , B , and C represent the connecting positions.
For a detailed description of installation, refer to the following manual supplied with to
A
A B C
your PLC.
Refer to the FX3G Series User's Manual - Hardware Edition.
B

FX3UC-4AD
FX3U-4AD
Only either A or C
can be used as 2nd.
European
B 1st terminal Analog input
board
C 2nd
board
block Flowmeter
Pressure sensor
C
European

FX3U-4AD-ADP
Signal converter,
terminal
block etc.
FX3G-2AD-BD
FX3G-2AD-BD
B European
1st
D
Up to 2 analog expansion boards, analog special adapters can be connected.

terminal
board block
C 2nd Analog output

FX3G-2AD-BD
board Inverter, etc.
European
terminal
FX3G-1DA-BD block

FX3G-1DA-BD
E

FX3U-4DA
Any one can be
selected.
A 2nd
adapter
A 1st European
B
adapter terminal Analog input F
block Flowmeter

FX3U-4DA-ADP
Pressure sensor
FX3U-4AD-ADP European Signal converter,
terminal
FX3U-4AD-ADP etc.
block
A 2nd
FX3G-CNV-ADP
A 1st
adapter
European G
adapter

FX3G-1DA-BD
terminal
block Analog output
FX3U-4DA-ADP European Inverter, etc.
terminal
FX3U-4DA-ADP
A block
2nd
adapter
Temperature H
A 1st
FX3U-4AD-PT

European sensor input

adapter
terminal Thermocouple
block (types K and J)
FX3U-4AD-TC-ADP
-ADP

FX3U-4AD-PNK-ADP Resistance
FX3U-4AD-TC-ADP
FX3U-4AD-PT-ADP thermometer
I
FX3U-4AD-PTW-ADP European
FX3U-4AD-PNK-ADP sensor (Pt1000
FX3U-4AD-PT-ADP terminal
and Ni1000)
FX3U-4AD-PTW-ADP block
FX3U-4AD-PTW

Platinum
resistance
thermometer
-ADP

sensor (Pt100)

J
FX3U-4AD-PNK
-ADP

A-19
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 System Configuration Drawings of Analog Products
Common Items 3.3 FX3G Series PLC

3.3.2 Connection of special function blocks

FX3G Series A , B , and C represent the connecting positions.

For a detailed description of installation, refer to the following manual
supplied with your PLC.
A C → Refer to the FX3G Series User's Manual - Hardware Edition.
B

To connect the special adapters A or the connector conversion

adapter B , refer to the previous page.
Up to 8 special function blocks can be connected.

Analog input
C • Flowmeter
• Pressure sensor
• Signal converter,
etc.
Terminal block

Analog output
Special function • Inverter, etc.
block for FX3U
and FX2N
Temperature sensor
input
• Thermocouple

• For a detailed description of the connectable special function blocks and system configuration:
→ Refer to the FX3G Series User's Manual - Hardware Edition.

The analog special function blocks shown in the table below can be connected to the FX3G Series PLC:

FX Series Type
Analog special function blocks for
FX3U-4AD, FX3U-4DA
the FX3U
Analog special function blocks for FX2N-8AD, FX2N-4AD, FX2N-2AD, FX2N-4DA, FX2N-2DA, FX2N-5A,
the FX2N FX2N-4AD-PT, FX2N-4AD-TC, FX2N-2LC

A-20
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Comparison of Performance Specifications
Common Items 4.1 Analog Input

Common Items
4. Comparison of Performance Specifications
The analog product performance specifications are shown in the following tables. Select the optimal product B
for your equipment.

FX3UC-4AD
FX3U-4AD
4.1 Analog Input

4.1.1 FX3U-4AD-ADP C

FX3U-4AD-ADP
FX3U-4AD-ADP
Specifications
Voltage input Current input
Number of input points 4ch

Analog input range

0V to 10V DC 4mA to 20mA DC D
(Input resistance: 194 kΩ) (Input resistance: 250 Ω)

FX3G-2AD-BD
Absolute maximum input -0.5V,+15V -2mA,+30mA
Offset
Impossible to change Impossible to change
Gain
Digital output 12 bits, binary 11 bits, binary
E
Resolution 2.5mV(10V×1/4000) 10µA(16mA×1/1600)

FX3U-4DA
Overall accuracy

Ambient temperature
±0.5%(±50mV) for 10V full scale ±0.5%(±80µA) for 16mA full scale
:25±5°C

Ambient temperature
:0 to 55°C
±1.0%(±100mV) for 10V full scale ±1.0%(±160µA) for 16mA full scale F

FX3U-4DA-ADP
Time required for A/D • FX3U/FX3UC Series PLC : 200µs (Data updated every scan time.)
conversion • FX3G Series PLC : 250µs (Data updated every scan time.)

4080 1640
4000 1600 G

FX3G-1DA-BD
Digital output

Digital output

Input characteristics
20.4mA
10.2V

0 10V
Analog input
0 4mA
Analog input
20mA H
FX3U-4AD-PT

• The photocoupler is used to insulate the analog input area from the PLC.
Insulation method • The DC/DC converter is used to insulate the power supply from the analog inputs.
-ADP

• Channels are not insulated from each other.

Number of I/O points
occupied
0 point (This number is not related to the maximum I/O points of the PLC.) I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

A-21
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Comparison of Performance Specifications
Common Items 4.1 Analog Input

4.1.2 FX2N-2AD

FX2N-2AD
Specifications
Voltage input Current input
Number of input points 2ch
0V to 5V DC
4mA to 20mA DC
Analog input range*1 0V to 10V DC
(Input resistance: 250Ω)
(Input resistance: 200 kΩ)
Absolute maximum input -0.5V,+15V -2mA,+60mA
*2,*3
Offset If the digital value is "0":0V to 1V If the digital value is "0":0mA to 4mA*2,*3
If the digital value is "4000":
Gain If the digital value is "4000":20mA*2,*3
5V to 10V*2,*3
Digital output 12 bits, binary
*3
Resolution 2.5mV(10V×1/4000) 4.00µA(16mA×1/4000)*3
Overall accuracy

Ambient temperature:
- -
25±5°C

Ambient temperature:
±1.0%(±100mV) for 10V full scale ±1.0%(±160µA) for 16mA full scale
0 to 55°C

Time required for A/D 2.5ms × number of selected channels

conversion (Operation synchronized with sequence program)

4095 4095
4000 4000
Digital output

Digital input

Input characteristics

20.380mA
10.238V

0 10V 0 4mA 20mA

Analog input Analog input

• The photocoupler is used to insulate the analog input area from the PLC.
Insulation method
• Channels are not insulated from each other.
Number of I/O points
8 points (Taken from either the input or output points of the PLC.)
occupied

*1. For FX2N-2AD, combined use of the voltage and current inputs is not possible.
*2. Use the adjustment volume to adjust FX2N-2AD.
*3. Adjustment of the offset or gain value will change the resolution.

A-22
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Comparison of Performance Specifications
Common Items 4.1 Analog Input

A
4.1.3 FX3U-4AD

Common Items
FX3U-4AD
Specifications
Voltage input Current input
Number of input points 4ch
-20mA to +20mA DC
B
-10V to +10V DC

FX3UC-4AD
FX3U-4AD
Analog input range 4mA to 20mA DC
(Input resistance: 200 kΩ)
(Input resistance: 250 Ω)
Absolute maximum input ±15V ±30mA
*1,*2
Offset -10V to +9V -20mA to +17mA*1,*3
Gain -9V to +10V*1,*2 -17mA to +30mA*1,*3 C

FX3U-4AD-ADP
Digital output With sign, 16 bits, binary With sign, 15 bits, binary
0.32mV(20V×1/64000) 1.25µA(40mA×1/32000)
Resolution*4 2.5mV(20V×1/8000) 5.00µA(40mA×1/8000)
Overall accuracy

Ambient temperature: ±0.5%(±200µA) for 40mA full scale

25±5°C
±0.3%(±60mV) for 20V full scale
Same accuracy for 4mA to 20mA input D

FX3G-2AD-BD
Ambient temperature: ±1.0%(±400µA) for 40mA full scale
±0.5%(±100mV) for 20V full scale
0 to 55°C Same accuracy for 4mA to 20mA input

Time required for A/D

conversion 500µs × number of selected channels*5
E
zWhen the input mode is set to "0": zWhen the input mode is set to "6":

FX3U-4DA
+32640 +16320
+32000 +16000

+20.4mA
+10.2V

-10V 0 -20mA 0
+10V +20mA F
-20.4mA
-10.2V

FX3U-4DA-ADP
Input characteristics*4 -32000 -16000
-32640 -16320
zWhen the input mode is set to "3":
16400
16000
G
20.4mA

FX3G-1DA-BD
0 4mA 20mA

• The photocoupler is used to insulate the analog input area from the PLC.
Insulation method • The DC/DC converter is used to insulate the power supply from the analog inputs. H
FX3U-4AD-PT

• Channels are not insulated from each other.

Number of I/O points
8 points (Taken from either the input or output points of the PLC.)
occupied
-ADP

*1. Adjustment of the offset or gain value will not affect the resolution. In the direct indication mode, however, the

*2.
offset/gain cannot be adjusted.
The offset and the gain should satisfy the following condition:
I
FX3U-4AD-PTW

1V ≤ (Gain - Offset)
*3. The offset and the gain should satisfy the following condition:
3mA ≤ (Gain - Offset) ≤ 30mA
-ADP

*4. The resolution and the input/output characteristics depend on the selected mode.
*5. If 1 or more channels use the digital filter(s), the time required for A/D conversion will be
"5 ms × number of selected channels." J
FX3U-4AD-PNK
-ADP

A-23
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Comparison of Performance Specifications
Common Items 4.1 Analog Input

4.1.4 FX2N-4AD

FX2N-4AD
Specifications
Voltage input Current input
Number of input points 4ch
-20mA to +20mA DC
-10V to +10V DC
Analog input range 4mA to 20mA DC
(Input resistance: 200kΩ)
(Input resistance: 250 Ω)
Absolute maximum input ±15V ±32mA
*1,*2
Offset -5V to +5V -20mA to +20mA*1,*3
Gain -4V to +15V*1,*2 -16mA to +32mA*1,*3
Digital output With sign, 12 bits, binary With sign, 11 bits, binary
*1
Resolution 5mV(20V×1/4000) 20µA(40mA×1/2000)*1
Overall accuracy

Ambient temperature:
- -
25±5°C

Ambient temperature: ±1.0%(±400µA) for 40mA full scale

±1.0%(±200mV) for 20V full scale
0 to 55°C Same accuracy for 4mA to 20mA input

Time required for A/D Normal conversion mode:15ms × number of selected channels
conversion High-speed conversion mode: 6ms × number of selected channels

zWhen the input is set from -20 mA to +20 mA:

+2047
+1600
+10.235V

+2000
+1000

+32mA
-10V 0
+10V -20mA 0
-10.240V

+20mA
-32mA

-2000
Input characteristics -1000
-2048
-1600
zWhen the input is set from 4 mA to 20 mA:
1750
1000
32mA

0 4mA 20mA

• The photocoupler is used to insulate the analog input area from the PLC.
Insulation method • The DC/DC converter is used to insulate the power supply from the analog inputs.
• Channels are not insulated from each other.
Number of I/O points
8 points (Taken from either the input or output points of the PLC.)
occupied
*1. Adjustment of the offset or gain value will not affect the resolution.
*2. The offset and the gain should satisfy the following condition:
1V ≤ (Gain - Offset) ≤ 15V
*3. The offset and the gain should satisfy the following condition:
4mA ≤ (Gain - Offset) ≤ 32mA

A-24
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Comparison of Performance Specifications
Common Items 4.1 Analog Input

A
4.1.5 FX3UC-4AD

Common Items
FX3UC-4AD
Specifications
Voltage input Current input
Number of input points 4ch
-20mA to +20mA DC
B
-10V to +10V DC

FX3UC-4AD
FX3U-4AD
Analog input range 4mA to 20mA DC
(Input resistance: 200 kΩ)
(Input resistance: 250 Ω)
Absolute maximum input ±15V ±30mA
*1,*2
Offset -10V to +9V -20mA to +17mA*1,*3
Gain -9V to +10V*1,*2 -17mA to +30mA*1,*3 C

FX3U-4AD-ADP
Digital output With sign, 16 bits, binary With sign, 15 bits, binary
0.32mV(20V×1/64000) 1.25µA(40mA×1/32000)
Resolution*4 2.5mV(20V×1/8000) 5.00µA(40mA×1/8000)
Overall accuracy

Ambient temperature: ±0.5%(±200µA) for 40mA full scale

25±5°C
±0.3%(±60mV) for 20V full scale
Same accuracy for 4mA to 20mA input D

FX3G-2AD-BD
Ambient temperature: ±1.0%(±400µA) for 40mA full scale
±0.5%(±100mV) for 20V full scale
0 to 55°C Same accuracy for 4mA to 20mA input

Time required for A/D

conversion 500µs × number of selected channels*5
E
zWhen the input mode is set to "0": zWhen the input mode is set to "6":

FX3U-4DA
+32640 +16320
+32000 +16000

+20.4mA
+10.2V

-10V 0 -20mA 0
+10V +20mA F
-20.4mA
-10.2V

FX3U-4DA-ADP
Input characteristics*4 -32000 -16000
-32640 -16320
zWhen the input mode is set to "3":
16400
16000
G
20.4mA

FX3G-1DA-BD
0 4mA 20mA

• The photocoupler is used to insulate the analog input area from the PLC.
Insulation method • The DC/DC converter is used to insulate the power supply from the analog inputs. H
FX3U-4AD-PT

• Channels are not insulated from each other.

Number of I/O points
8 points (Taken from either the input or output points of the PLC.)
occupied
-ADP

*1. Adjustment of the offset or gain value will not affect the resolution. In the direct indication mode, however, the

*2.
offset/gain cannot be adjusted.
The offset and the gain should satisfy the following condition:
I
FX3U-4AD-PTW

1V ≤ (Gain - Offset)
*3. The offset and the gain should satisfy the following condition:
3mA ≤ (Gain - Offset) ≤ 30mA
-ADP

*4. The resolution and the input/output characteristics depend on the selected mode.
*5. If 1 or more channels use the digital filter(s), the time required for A/D conversion will be
"5 ms × number of selected channels." J
FX3U-4AD-PNK
-ADP

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Comparison of Performance Specifications
Common Items 4.1 Analog Input

4.1.6 FX2NC-4AD

FX2NC-4AD
Specifications
Voltage input Current input
Number of input points 4ch
-20mA to +20mA DC
-10V to +10V DC
Analog input range 4mA to 20mA DC
(Input resistance: 200kΩ)
(Input resistance: 250 Ω)
Absolute maximum input ±15V ±30mA
*1,*2
Offset -10V to +9V -20mA to +17mA*1,*3
Gain -9V to +10V*1,*2 -17mA to +30mA*1,*3
Digital output With sign, 16 bits, binary With sign, 15 bits, binary
0.32mV(20V×1/64000) 1.25µA(40mA×1/32000)
Resolution*4 2.5mV(20V×1/8000) 5.00µA(40mA×1/8000)
Overall accuracy

Ambient temperature: ±0.5%(±200µA) for 40mA full scale

±0.3%(±60mV) for 20V full scale
25±5°C Same accuracy for 4mA to 20mA input

Ambient temperature: ±1.0%(±400µA) for 40mA full scale

±0.5%(±100mV) for 20V full scale
0 to 55°C Same accuracy for 4mA to 20mA input

Time required for A/D

conversion 1ms × number of selected channels*5

zWhen the input mode is set to "0": zWhen the input mode is set to "6":
+32640 +16320
+32000 +16000

+20.4mA
+10.2V

-10V 0 -20mA 0
+10V 20mA
-20.4mA
-10.2V

Input characteristics*4 -32000 -16000

-32640 -16320
zWhen the input mode is set to "3":
16400
16000
20.4mA

0 4mA 20mA
• The photocoupler is used to insulate the analog input area from the PLC.
Insulation method • The DC/DC converter is used to insulate the power supply from the analog inputs.
• Channels are not insulated from each other.
Number of I/O points
8 points (Taken from either the input or output points of the PLC.)
occupied
*1. Adjustment of the offset or gain value will not affect the resolution. In the direct indication mode, however, the
offset/gain cannot be adjusted.
*2. The offset and the gain should satisfy the following condition:
1V ≤ (Gain - Offset)
*3. The offset and the gain should satisfy the following condition:
3mA ≤ (Gain - Offset) ≤ 30mA
*4. The resolution and the input/output characteristics depend on the selected mode.
*5. If 1 or more channels use the digital filter(s), the time required for A/D conversion will be
"5 ms × number of selected channels."

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Comparison of Performance Specifications
Common Items 4.1 Analog Input

A
4.1.7 FX2N-8AD

Common Items
FX2N-8AD
Specifications
Voltage input Current input
Number of input points 8ch
B
-20mA to +20mA DC

FX3UC-4AD
FX3U-4AD
-10V to +10V DC
Analog input range 4mA to 20mA DC
(Input resistance: 200 kΩ)
(Input resistance: 250 Ω)
Absolute maximum input ±15V ±30mA
*1,*2
Offset -10V to +9V -20mA to +17mA*1,*3
Gain -9V to +10V*1,*2 -17mA to +30mA*1,*3
C

FX3U-4AD-ADP
Digital output With sign, 15 bits, binary With sign, 14 bits, binary
0.63mV(20V×1/32000) 2.50µA(40mA×1/16000)
Resolution*4 2.5mV(20V×1/8000) 2.00µA(16mA×1/8000)
Overall accuracy

Ambient temperature: ±0.3%(±120µA) for 40mA full scale

25±5°C
±0.3%(±60mV) for 20V full scale
Same accuracy for 4mA to 20mA input D

FX3G-2AD-BD
Ambient temperature: ±0.5%(±200µA) for 40mA full scale
±0.5%(±100mV) for 20V full scale
0 to 55°C Same accuracy for 4mA to 20mA input

Time required for A/D

500µs × number of selected channels*5
conversion
E

FX3U-4DA
zWhen the input mode is set to "0": zWhen the input mode is set to "6":
+16320
+8160
+16000
+8000

+20.4mA
+10.2V

-10V 0 -20mA 0 F
+10V +20mA

FX3U-4DA-ADP
-10.2V

-20.4mA

Input characteristics*4 -16000

-8000
-16320
Approx.-8160
zWhen the input mode is set to "3": G
8200

FX3G-1DA-BD
8000
20.4mA

0 4mA 20mA

• The photocoupler is used to insulate the analog input area from the PLC.
H
FX3U-4AD-PT

Insulation method • The DC/DC converter is used to insulate the power supply from the analog inputs.
• Channels are not insulated from each other.
Number of I/O points
-ADP

8 points (Taken from either the input or output points of the PLC.)
occupied
*1. Adjustment of the offset or gain value will not affect the resolution. In the direct indication mode, however, the
offset/gain cannot be adjusted.
I
FX3U-4AD-PTW

*2. The offset and the gain should satisfy the following condition:
1V ≤ (Gain - Offset)
*3. The offset and the gain should satisfy the following condition:
-ADP

3mA ≤ (Gain - Offset) ≤ 30mA

*4.
*5.
The resolution and the input/output characteristics depend on the selected mode.
If 1 or more channels use the thermocouple input(s), the input voltage/current data conversion speed will be
J
FX3U-4AD-PNK

"1 ms × number of selected channels."

-ADP

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Comparison of Performance Specifications
Common Items 4.1 Analog Input

4.1.8 FX3G-2AD-BD

FX3G-2AD-BD
Specifications
Voltage input Current input
Number of input points 2ch
0V to 10V DC 4mA to 20mA DC
Analog input range
(Input resistance: 198.7 kΩ) (Input resistance: 250 Ω)
Absolute maximum input -0.5V. +15V -2mA, +30mA
Offset
Impossible to change Impossible to change
Gain
Digital output 12 bits, binary 11 bits, binary
Resolution 2.5mV(10V×1/4000) 8µA(16mA×1/2000)
Overall accuracy

Ambient temperature:
±0.5%(±50mV) for 10V full scale ±0.5%(±80µA) for 16mA full scale
25±5°C

Ambient temperature:
±1.0%(±100mV) for 10V full scale ±1.0%(±160µA) for 16mA full scale
0 to 55°C

Time required for A/D

180µs (Data updated every scan time.)
conversion

4080 2040
4000
2000
Digital output
Digital output

Input characteristics

0 10V 10.2V 0 4mA 20mA 20.32mA

Analog input Analog input

• The analog input area is not insulated from the PLC.

Insulation method
• Channels are not insulated from each other.
Number of I/O points
0 point (This number is not related to the maximum I/O points of the PLC.)
occupied

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Comparison of Performance Specifications
Common Items 4.2 Analog Output

A
4.2 Analog Output

Common Items
4.2.1 FX3U-4DA-ADP

FX3U-4DA-ADP
B

FX3UC-4AD
FX3U-4AD
Specifications
Voltage output Current output
Number of output points 4ch
0V to 10V DC 4mA to 20mA DC
Analog output range
(External load: 5k to 1MΩ) (External load: 500Ω or less)
Offset C
Impossible to change Impossible to change

FX3U-4AD-ADP
Gain
Digital input 12 bits, binary
Resolution 2.5mV(10V×1/4000) 4µA(16mA×1/4000)
Ambient temperature:
±0.5%(±50mV) for 10V full scale ±0.5%(±80µA) for 16mA full scale
25±5°C D
Overall accuracy

Ambient temperature:

FX3G-2AD-BD
±1.0%(±100mV) for 10V full scale ±1.0%(±160µA) for 16mA full scale
0 to 55°C
If the external load resistance (Rs) is less than
5kΩ, the load will be increased as shown in the
Reference following formula: (Increase: 100 mV per 1%) -
47×100
Rs+47
-0.9(%) E

FX3U-4DA
Time required for D/A • FX3U/FX3UC Series PLC : 200µs (Data updated every scan time.)
conversion • FX3G Series PLC : 250µs (Data updated every scan time.)

10V 20mA F
Analog output

FX3U-4DA-ADP
Analog output

Output characteristics
4080

4080
4mA
0
Digital input
4000 0 4000
Digital input
G

FX3G-1DA-BD
• The photocoupler is used to insulate the analog output area from the PLC.
Insulation method • The DC/DC converter is used to insulate the power supply from the analog inputs.
• Channels are not insulated from each other.
Number of I/O points
occupied
0 point (This number is not related to the maximum I/O points of the PLC.) H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Comparison of Performance Specifications
Common Items 4.2 Analog Output

4.2.2 FX2N-2DA

FX2N-2DA
Specifications
Voltage output Current output
Number of output points 2ch
0V to 10V DC
4mA to 20mA DC
Analog output range 0V to 5V DC
(External load: 400Ω or less)
(External load: 2k to 1MΩ)
If the digital value is "0": If the digital value is "0":
Offset*1,*2 0V to 1V 4mA
If the digital value is "4000": If the digital value is "4000":
Gain*1,*2 5V to 10V 20mA
Digital output 12 bits, binary
*2
Resolution 2.5mV(10V×1/4000) 4µA(16mA×1/4000)*2
±0.1V ±0.16mA
Overall accuracy
Does not include any load fluctuation. -
Time required for D/A 4ms × number of selected channels
conversion (Operation synchronized with sequence program)

10V 20mA

Analog output
Analog output

Output characteristics
4095

4095
4mA
0 4000 0 4000
Digital input Digital input

If the input data consists of 13 bits or more, only the lower 12 bits will be valid, and the other bits will
be ignored.
• The photocoupler is used to insulate the analog output area from the PLC.
Insulation method
• Channels are not insulated from each other.
Number of I/O points
8 points (Taken from either the input or output points of the PLC.)
occupied
*1. Use the adjustment volume to adjust the FX2N-2DA.
*2. Adjustment of the offset or gain value will change the resolution.

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Common Items 4.2 Analog Output

A
4.2.3 FX3U-4DA

Common Items
FX3U-4DA
Specifications
Voltage output Current output
Number of output points 4ch B
0mA to 20mA DC

FX3UC-4AD
FX3U-4AD
-10V to +10V DC
Analog output range 4mA to 20mA DC
(External load: 1k to 1MΩ)
(External load: 500Ω or less)
Offset -10V to +9V*1,*2 0mA to 17mA*1,*3
Gain -9V to +10V*1,*2 3mA to 30mA*1,*3
Digital input With sign, 16 bits, binary 15 bits, binary
C

FX3U-4AD-ADP
Resolution 0.32mV(20V×1/64000)*4 0.63µA(20mA×1/32000)*4
Ambient temperature: ±0.3%(±60µA) for 20mA full scale
Overall accuracy

±0.3%(±60mV) for 20V full scale

25±5°C Same accuracy for 4mA to 20mA output
Ambient temperature: ±0.5%(±100µA) for 20mA full scale
0 to 55°C
±0.5%(±100mV) for 20V full scale
Same accuracy for 4mA to 20mA output D

FX3G-2AD-BD
Reference Includes corrective function by load fluctuation. -

Time required for D/A

1ms (The number of selected channels will not affect this value.)
conversion

zWhen the output mode is set to "0": zWhen the output mode is "2":
(The dotted line is for mode 3.) E
+10.2V

FX3U-4DA
20.4mA
+10V
+32640

20mA

Output characteristics -32000

Analog

0
output

+32000
F
-32640

32640

FX3U-4DA-ADP
4mA
-10V
-10.2V 0 32000
Digital input

• The photocoupler is used to insulate the analog output area from the PLC.
Insulation method • The DC/DC converter is used to insulate the power supply from the analog output.
• Channels are not insulated from each other.
G

FX3G-1DA-BD
Number of I/O points
8 points (Taken from either the input or output points of the PLC.)
occupied

*1. Adjustment of the offset or gain value will not affect the resolution. In the analog value specification
mode, however, the offset/gain cannot be adjusted.
*2. The offset and the gain should satisfy the following condition: H
1V ≤ (Gain - Offset) ≤ 10V
FX3U-4AD-PT

*3. The offset and the gain should satisfy the following condition:
3mA ≤ (Gain - Offset) ≤ 30mA
-ADP

*4. Adjustment of the offset or gain value will not affect the resolution.
I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Comparison of Performance Specifications
Common Items 4.2 Analog Output

4.2.4 FX2N-4DA

FX2N-4DA
Specifications
Voltage output Current output
Number of output points 4ch
0mA to 20mA DC
-10V to +10V DC
Analog output range 4mA to 20mA DC
(External load: 2k to 1MΩ)
(External load: 500Ω or less)
Offset -5V to +5V*1,*2 -20mA to +20mA*1,*3
15 V or less, and 32 mA or less, and
Gain
Gain - Offset ≥ 1V Gain - Offset ≥ 4mA
Digital output With sign, 12 bits, binary 10 bits, binary
Resolution *1 20µA(20mA×1/1000)*1
5mV(10V×1/2000)
±1.0%(±200µA) for 20mA full scale
±1.0%(±200mV) for 20V full scale
Overall accuracy Same accuracy for 4mA to 20mA output
Does not include any load fluctuation. -
Time required for D/A
2.1 ms (The number of selected channels will not affect this value.)
conversion

zWhen the output mode is set to "0": zWhen the output mode is "2":
(The dotted line is for mode 1.)

+10V 20mA

Analog output
+2047

Output characteristics -2000 0

+2000
-2048

1023
4mA
-10V 0 1000
Digital input

• The photocoupler is used to insulate the analog input area from the PLC.
Insulation method • The DC/DC converter is used to insulate the power supply from the analog output.
• Channels are not insulated from each other.
Number of I/O points
8 points (Taken from either the input or output points of the PLC.)
occupied

*1. Adjustment of the offset or gain value will not affect the resolution.
*2. The offset and the gain should satisfy the following condition:1
1V ≤ (Gain - Offset) ≤ 15V
*3. The offset and the gain should satisfy the following condition:
4mA ≤ (Gain - Offset) ≤ 32mA

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Common Items 4.2 Analog Output

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4.2.5 FX2NC-4DA

Common Items
FX2NC-4DA
Specifications
Voltage output Current output
Number of output points 4ch B
0mA to 20mA DC

FX3UC-4AD
FX3U-4AD
-10V to +10V DC
Analog output range 4mA to 20mA DC
(External load: 2k to 1MΩ)
(External load: 500Ω or less)
Offset -5V to +5V*1,*2 -20mA to +20mA*1,*3
Gain -4V to +15V*1,*2 -16mA to +32mA*1,*3
Digital input With sign, 12 bits, binary 10 bits, binary
C

FX3U-4AD-ADP
Resolution*1 5mV(20V×1/4000) 20µA(20mA×1/1000)
Ambient temperature: ±0.5%(±100µA) for 20mA full scale
Overall accuracy

±0.5%(±100mV) for 20V full scale

25±5°C Same accuracy for 4mA to 20mA output
Ambient temperature: ±1.0%(±200µA) for 20mA full scale
0 to 55°C
±1.0%(±200mV) for 20V full scale
Same accuracy for 4mA to 20mA output D

FX3G-2AD-BD
Reference Does not include any load fluctuation. -

Time required for D/A

2.1ms (The number of selected channels will not affect this value.)
conversion

zWhen the output mode is set to "0": zWhen the output mode is "2":
(The dotted line is for mode 1.) E

FX3U-4DA
+10V
20mA
+2047

Output characteristics -2000

Analog

0
output

+2000
F
-2048

1023

FX3U-4DA-ADP
4mA
-10V
0 1000
Digital input

• The photocoupler is used to insulate the analog output area from the PLC.
Insulation method • The DC/DC converter is used to insulate the power supply from the analog output.
• Channels are not insulated from each other.
G

FX3G-1DA-BD
Number of I/O points
8 points (Taken from either the input or output points of the PLC.)
occupied

*1. Adjustment of the offset or gain value will not affect the resolution.
*2. The offset and the gain should satisfy the following condition:
1V ≤ (Gain - Offset) ≤ 15V H
FX3U-4AD-PT

*3. The offset and the gain should satisfy the following condition:
4mA ≤ (Gain - Offset) ≤ 32mA
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Comparison of Performance Specifications
Common Items 4.2 Analog Output

4.2.6 FX3G-1DA-BD

FX3G-1DA-BD
Specifications
Voltage output Current output
Number of output points 1ch
0V to 10V DC 4mA to 20mA DC
Analog output range
(External load: 2k to 1MΩ) (External load: 500Ω or less)
Offset
Impossible to change Impossible to change
Gain
Digital input 12 bits, binary 11 bits, binary
Resolution 2.5mV(10V×1/4000) 8µA(16mA×1/2000)
Ambient temperature:
±0.5%(±50mV) for 10V full scale ±0.5%(±80µA) for 16mA full scale
25±5°C
Ambient temperature:
Overall accuracy

±1.0%(±100mV) for 10V full scale ±1.0%(±160µA) for 16mA full scale
0 to 55°C
Shipment adjustment is carried out by external
load resistance 2kΩ.
If external load resistance becomes larger than
Reference -
2kΩ, the output voltage will increase slightly.
When the load is 1MΩ, the output voltage is
about 2% higher than the correct value.
Time required for D/A
60µs (Data updated every scan time.)
conversion

10V 20mA
Analog output
Analog output

Output characteristics
4mA

0 4000 4080 0 2000 2040

Digital input Digital input

Caution:
An area of dead band is located in the region of
0V. Therefore the output analog value may not
represent the digital value accurately.
Insulation method • The analog output area is not insulated from the PLC.
Number of I/O points
0 point (This number is not related to the maximum I/O points of the PLC.)
occupied

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Common Items 4.3 Mixed Analog Input/Output

A
4.3 Mixed Analog Input/Output

Common Items
4.3.1 FX2N-5A

1. Analog input
B

FX3UC-4AD
FX3U-4AD
FX2N-5A
Specifications
Voltage input Current input
Number of output points 4ch
-10V to +10V DC -20mA to +20mA DC
Analog input/output
range
-100mV to +100mV DC 4mA to 20mA DC C
(Input resistance: 200kΩ) (Input resistance: 250Ω)

FX3U-4AD-ADP
Absolute maximum input ±15V ±30mA
• -10V to +10V DC:
-32V to +5V DC
Offset -32mA to +10mA
• -100mV to +100mV DC:
-320mV to +50mV DC
• -10V to +10V DC:
D

FX3G-2AD-BD
-5V to +32V, and Gain - Offset > 1V -10mA to +32mA, and
Gain
• -100mV to +100mV DC: Gain - Offset > 1 mA
-50mV to +320mV, and Gain - Offset > 10mA
• -10V to +10V DC:
With sign, 16 bits, binary
Digital input/output
• -100mV to +100mV DC:
With sign, 15 bits, binary
E
With sign, 12 bits, binary

FX3U-4DA
312.5µV(20V×1/64000) 1.25µA(40mA×1/32000)
Resolution
50µV(200mV×1/4000) 10µA(40mA×1/4000)
• -10V to +10V DC:
Ambient temperature: ±0.3% (±60mV) for 20V full scale ±0.3%(±120µA) for 40mA full scale
Overall accuracy

25±5°C • -100mV to +100mV DC:

±0.5% (±1mV) for 200mV full scale
Same accuracy for 4mA to 20mA input
F

FX3U-4DA-ADP
• -10V to +10V DC:
Ambient temperature: ±0.5% (±100mV) for 20V full scale ±0.5%(±200µA) for 40mA full scale
0±55°C • -100mV to +100mV DC: Same accuracy for 4mA to 20mA input
±1.0% (±2mV) for 200mV full scale
Time required for
1ms × number of selected channels
conversion G

FX3G-1DA-BD
zWhen the input mode is set to "0": zWhen the input mode is set to "2":
+32767 +32767
+20.480mA

+32000
+10.240V

+32000

-10V 0 -20mA 0
+20mA
H
-20.480mA

+10V
-10.240V

FX3U-4AD-PT

-32000 -32000
I/O characteristics
-ADP

-32768 -32768
zWhen the input mode is set to "1":
+32767 I
+32000
20.383mA

FX3U-4AD-PTW

2mA
-ADP

0 4mA 20mA
-4000
J
FX3U-4AD-PNK
-ADP

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Comparison of Performance Specifications
Common Items 4.3 Mixed Analog Input/Output

2. Analog output
FX2N-5A
Specifications
Voltage output Current output
Number of output points 1ch
0mA to 20mA DC
-10V to +10V DC
Analog input/output range 4mA to 20mA DC
(External load: 5k to 1MΩ)
(External load: 500Ω or less)
Offset -10V to +5V 0mA to 10mA
-9V to +10V, and 3 mA to 30 mA or less, and
Gain
Gain - Offset ≥ 1V Gain - Offset ≥ 3mA
Digital input/output With sign, 12 bits, binary 10 bits, binary
Resolution 5mV(10V×1/4000) 20µA(20mA×1/1000)
Overall accuracy

Ambient temperature: ±0.5%(±200µA) for 40mA full scale

±0.5% (±100mV) for 20V full scale
25±5°C Same accuracy for 4mA to 20mA output

Ambient temperature: ±1.0%(±400µA) for 40mA full scale

±1.0% (±200mV) for 20V full scale
0±55°C Same accuracy for 4mA to 20mA output

Time required for conversion 2ms

zWhen the output mode is set to "0": zWhen the output mode is "4":
(The dotted line is for mode 2.)
+10V
20mA
+32767

Analog output
-32000 0
I/O characteristics
+32000
-32768

32767
-10V 4mA
0 32000
Digital input

3. Other
Specifications FX2N-5A
• The photocoupler is used to insulate the analog input and output area from the
PLC.
Insulation method • The DC/DC converter is used to insulate the power supply from the analog input
and output.
• Channels are not insulated from each other.
Number of I/O points
8 points (Taken from either the input or output points of the PLC.)
occupied

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Common Items 4.3 Mixed Analog Input/Output

A
4.3.2 FX0N-3A

Common Items
FX0N-3A
Specifications
Voltage input Current input Voltage output Current output
Number of
input/output 2ch 1ch
B

FX3UC-4AD
FX3U-4AD
points
0V to 10V DC 0V to 10V DC
Analog input/ 4mA to 20mA DC 4mA to 20mA DC
0V to 5V DC 0V to 5V DC
output range*1 (Input resistance: 250Ω) (External load: 500Ω)
(Input resistance: 200kΩ) (External load: 1k to 1MΩ)
Absolute
maximum
-0.5V,
+15V
-2mA,
+60mA
- - C
input

FX3U-4AD-ADP
If the digital value is "0": If the digital value is "0": If the digital value is "0": If the digital value is "0":
Offset*2*3 0V to 1V 0mA to 4mA 0V to 1V 4mA
If the digital value is "250": If the digital value is "250": If the digital value is "250": If the digital value is "250":
Gain*2*3 5V to 10V 20mA 5V to 10V 20mA
Digital input/ 0 to 250 0 to 250 D
output

FX3G-2AD-BD
8 bits, binary 8 bits, binary
Resolution*3 40mV(10V×1/250) 64µA(16mA×1/250) 40mV(10V×1/250) 64µA(16mA×1/250)
Overall
±0.1V ±0.16mA ±0.1V ±0.16mA
accuracy
Time required
for conversion
TO instruction processing time × 2 + FROM instruction processing time
(operation synchronized with sequence program)
E

FX3U-4DA
255 255
250 250 10V 20mA

Analog output
F
Digital output
Digital output

Analog output
20.320mA

FX3U-4DA-ADP
10.200V

I/O
characteristics
255

255
4mA
0 10V 0 4mA 20mA 0 250 0 250
Analog input Analog input Digital input Digital input
G
If the input data consists of 9 bits or more, only the

FX3G-1DA-BD
lower 8 bits will be valid, and the other bits will be
ignored.
Insulation • The photocoupler is used to insulate the analog input and output area from the PLC.
method • Channels are not insulated from each other.
Number of I/O H
points 8 points (Taken from either the input or output points of the PLC.)
FX3U-4AD-PT

occupied

*1. Combined use of voltage and current inputs is not possible.

-ADP

*2. Adjustment of the volume (offset or gain) value will change the resolution.
*3. Adjustment of the offset or gain value will change the resolution. I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Comparison of Performance Specifications
Common Items 4.4 Temperature Sensor Input

4.4 Temperature Sensor Input

4.4.1 FX3U-4AD-PT-ADP

FX3U-4AD-PT-ADP
Specifications
Centigrade(°C) Fahrenheit(°F)
Number of input points 4ch
3-wire platinum resistance thermometer sensor(s)
Input signal
JIS C 1604-1997
Rated temperature range -50°C to +250°C -58°F to +482°F
Digital output -500 to +2500 -580 to +4820
Resolution 0.1°C 0.18°F
• Ambient temperature: 25°C±5°C ±0.5% for full scale
Overall accuracy
• Ambient temperature: 0°C to 55°C ±1.0% for full scale
Time required for • FX3U/FX3UC Series PLC : 200µs (Data updated every scan time.)
conversion • FX3G Series PLC : 250µs (Data updated every scan time.)

+2550 +4910
+2500 +4820

Digital
output
Digital
output

+491°F
+255°C

Input characteristics

-50°C -58°F
0 0
-67°F
-55°C

+250°C +482°F
-500 Temperature -580 Temperature
-550 -670

• The photocoupler is used to insulate the analog input area from the PLC.
Insulation method • The DC/DC converter is used to insulate the power supply from the analog inputs.
• Channels are not insulated from each other.
Number of I/O points 0 points
occupied (This number of points is not related to the maximum number of input/output points of the PLC.)

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Common Items 4.4 Temperature Sensor Input

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4.4.2 FX3U-4AD-PTW-ADP

Common Items
FX3U-4AD-PTW-ADP
Specifications
Centigrade(°C) Fahrenheit(°F)
Number of input points 4ch B
3-wire platinum resistance thermometer sensor(s)

FX3UC-4AD
FX3U-4AD
Input signal
JIS C 1604-1997
Rated temperature range -100°C to +600°C -148°F to +1112°F
Digital output -1000 to +6000 -1480 to +11120
Resolution 0.2°C to 0.3°C 0.4°F to 0.5°F
• Ambient temperature: 25°C±5°C ±0.5% for full scale
C
Overall accuracy

FX3U-4AD-ADP
• Ambient temperature: 0°C to 55°C ±1.0% for full scale
Time required for • FX3U/FX3UC Series PLC : 200µs (Data updated every scan time.)
conversion • FX3G Series PLC : 250µs (Data updated every scan time.)

+6150
+6000
+11390
+11120 D

FX3G-2AD-BD
Digital
output
Digital
output

+1139°F
+615°C

Input characteristics

-100°C -148°F
E
-175°F
-115°C

0 +600°C 0 +1112°F
-1000Temperature -1480Temperature

FX3U-4DA
-1150 -1750

• The photocoupler is used to insulate the analog input area from the PLC.
Insulation method • The DC/DC converter is used to insulate the power supply from the analog inputs.
• Channels are not insulated from each other.
Number of I/O points 0 points F
occupied (This number of points is not related to the maximum number of input/output points of the PLC.)

FX3U-4DA-ADP
G

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Comparison of Performance Specifications
Common Items 4.4 Temperature Sensor Input

4.4.3 FX3U-4AD-PNK-ADP

FX3U-4AD-PNK-ADP
Specifications
Centigrade(°C) Fahrenheit(°F)
Number of input points 4ch
Platinum resistance thermometer sensor (2-wire or 3-wire) Pt1000
JIS C 1604-1997
Input signal
Nickel resistance thermometer sensor (2-wire or 3-wire) Ni1000
DIN 43760-1987
Pt1000 -50°C to +250°C Pt1000 -58°F to +482°F
Rated temperature range
Ni1000 -40°C to +110°C Ni1000 -40°F to +230°F
Pt1000 -500 to +2500 Pt1000 -580 to +4820
Digital output
Ni1000 -400 to +1100 Ni1000 -400 to +2300
Pt1000 Pt1000
Resolution 0.1°C 0.2°F
Ni1000 Ni1000
• Ambient temperature : 25°C±5°C ±0.5% for full scale
Overall accuracy
• Ambient temperature : 0°C to 55°C ±1.0% for full scale
Time required for • FX3U/FX3UC Series PLC : 200µs (Data updated every scan time.)
conversion • FX3G Series PLC : 250µs (Data updated every scan time.)

-Pt1000 -Pt1000
+2560 +4920
+2500 +4820

+492.8°F
Approx.
+256°C

Approx.
-50°C 0 -58°F 0
Approx.

Approx.

+250°C +482 °F
-55°C

-67°F

-500 -580
-550 -670
Input characteristics
-Ni1000 -Ni1000
+1150 +2390
+1100 +2300
Approx.

Approx.
+115°C

+239°F

-40°C 0 -40°F 0
Approx.

Approx.

+110°C +230°F
-45°C

-49°F

-400 -400
-450 -490

• The photocoupler is used to insulate the analog input area from the PLC.
Insulation method • The DC/DC converter is used to insulate the power supply line from the analog input area.
• Channels are not insulated from each other.
Number of I/O points 0 points
occupied (This number of points is not related to the maximum number of input/output points of the PLC.)

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Comparison of Performance Specifications
Common Items 4.4 Temperature Sensor Input

A
4.4.4 FX3U-4AD-TC-ADP

Common Items
FX3U-4AD-TC-ADP
Specifications
Centigrade(°C) Fahrenheit(°F)
Number of input points 4ch B
Thermocouple type K or J

FX3UC-4AD
FX3U-4AD
Input signal
JIS C 1602-1995
• Type K: -100°C to +1000°C • Type K: -148°F to +1832°F
Rated temperature range
• Type J: -100°C to +600°C • Type J: -148°F to +1112°F
• Type K: -1000 to +10000 • Type K: -1480 to +18320
Digital output
• Type J: -1000 to +6000 • Type J: -1480 to +11120 C

FX3U-4AD-ADP
• Type K: 0.4°C • Type K: 0.72°F
Resolution
• Type J: 0.3°C • Type J: 0.54°F
Overall accuracy ±(0.5% for full scale +1°C)
Time required for • FX3U/FX3UC Series PLC : 200µs (Data updated every scan time.)
conversion • FX3G Series PLC : 250µs (Data updated every scan time.)
• Type K
D
• Type K

FX3G-2AD-BD
+10100 +18500
+10000 +18320
Digital
output

Digital
output
E
+1010°C

+1850°F

FX3U-4DA
-110°C -148°F
0 -166°F 0
-110°C

+1000°C +1832°F
Temperature Temperature
-1000 -1480
-1100 -1660
Input characteristics
• Type J • Type J
+6100
F
+11300

FX3U-4DA-ADP
+6000
+11120
Digital
output

Digital
output

+1130°F
+610°C

-100°C -148°F G
-110°C

FX3G-1DA-BD
0
-166°F

+600°C +1112°F
Temperature Temperature
-1000 -1480
-1100 -1660

• The photocoupler is used to insulate the analog input area from the PLC.
Insulation method • The DC/DC converter is used to insulate the power supply from the analog inputs.
• Channels are not insulated from each other. H
FX3U-4AD-PT

Number of I/O points 0 points

occupied (This number of points is not related to the maximum number of input/output points of the PLC.)
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Comparison of Performance Specifications
Common Items 4.4 Temperature Sensor Input

4.4.5 FX2N-4AD-PT

FX2N-4AD-PT
Specifications
Centigrade(°C) Fahrenheit(°F)
Number of input points 4ch
3-wire platinum resistance thermometer sensor(s)
DIN43760
Input signal
Pt100 JIS C 1604-1997
JPt100 JIS C 1604-1981
Input signal current 1mA(Constant current system)
Rated temperature range -100°C to +600°C -148°F to +1112°F
Digital output -1000 to +6000 -1480 to +11120
Resolution 0.2°C to 0.3°C 0.36°F to 0.54°F
Overall accuracy ±1.0% for full scale
Time required for
60ms(15ms×4ch)
conversion

+6000 +11120
Digital
output

Digital
output
Input characteristics

-100°C -148°F
0 +600°C 0 +1112°F
Temperature Temperature
-1000 -1480

• The photocoupler is used to insulate the analog input area from the PLC.
Insulation method • The DC/DC converter is used to insulate the power supply from the analog inputs.
• Channels are not insulated from each other.
Number of I/O points
8 points (Count either the input or output points of the PLC.)
occupied

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Comparison of Performance Specifications
Common Items 4.4 Temperature Sensor Input

A
4.4.6 FX2N-4AD-TC

Common Items
FX2N-4AD-TC
Specifications
Centigrade(°C) Fahrenheit(°F)
Number of input points 4ch B
Thermocouple type K or J

FX3UC-4AD
FX3U-4AD
Input signal
JIS C 1602-1995
• Type K: -100°C to +1200°C • Type K: -148°F to +2192°F
Rated temperature range
• Type J: -100°C to +600°C • Type J: -148°F to +1112°F
• Type K: -1000 to +12000 • Type K: -1480 to +21920
Digital output
• Type J: -1000 to +6000 • Type J: -1480 to +11120 C

FX3U-4AD-ADP
• Type K: 0.4°C • Type K: 0.72°F
Resolution
• Type J: 0.3°C • Type J: 0.54°F
Overall accuracy ±(0.5% for full scale +1°C)
Time required for
(240ms±2%)× number of selected channels
conversion
D

FX3G-2AD-BD
+12000 +21920
(Type K) (Type K)
Digital

Digital
output

output
+6000 +11120
(Type J) (Type J)
Input characteristics E
-100°C -148°F

FX3U-4DA
0 +600°C +1200°C 0 +1112°F +2192°F
(Type J) (Type K) (Type J) (Type K)
-1000 -1480
Temperature Temperature

• The photocoupler is used to insulate the analog input area from the PLC. F
Insulation method • The DC/DC converter is used to insulate the power supply from the analog inputs.

FX3U-4DA-ADP
• Channels are not insulated from each other.
Number of I/O points
8 points (Taken from either the input or output points of the PLC.)
occupied

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Comparison of Performance Specifications
Common Items 4.4 Temperature Sensor Input

4.4.7 FX2N-8AD

FX2N-8AD
Specifications
Centigrade(°C) Fahrenheit(°F)
Number of input points 8ch
Thermocouple type K, J, and T
Input signal
JIS C 1602-1995
• Type K • Type K
-100°C to +1200°C -148°F to +2192°F
• Type J • Type J
Rated temperature range
-100°C to +600°C -148°F to +1112°F
• Type T • Type T
-100°C to +350°C -148°F to +662°F
• Type K • Type K
-1000 to +12000 -1480 to +21920
• Type J • Type J
Digital output
-1000 to +6000 -1480 to +11120
• Type T • Type T
-1000 to +3500 -1480 to +6620
Resolution 0.1°C 0.1°F
• Type K: • Type K:
Overall accuracy

±0.5%(±6.5°C) for full scale ±0.5%(±11.7°F) for full scale

Ambient temperature: • Type J: • Type J:
0 to 55°C ±0.5%(±3.5°C) for full scale ±0.5%(±6.3°F) for full scale
• Type T: • Type T:
±0.7%(±3.15°C) for full scale ±0.7%(±5.67°F) for full scale
Time required for
40ms × number of selected channels
conversion

+12000 +21920
(Type K) (Type K)
Digital

Digital
output

output

+6000 +11120
(Type J) (Type J)
+3500 +6620
Input characteristics (Type T) (Type T)
+600°C +1112°F
-100°C (Type J) -148°F (Type J)
0 +350°C +1200°C 0 +662°F +2192°F
(Type T) (Type K) (Type T) (Type K)
-1000 -1480
Temperature Temperature

• The photocoupler is used to insulate the analog input area from the PLC.
Insulation method • The DC/DC converter is used to insulate the power supply from the analog inputs.
• Channels are not insulated from each other.
Number of I/O points
8 points (Taken from either the input or output points of the PLC.)
occupied

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Comparison of Performance Specifications
Common Items 4.4 Temperature Sensor Input

A
4.4.8 FX2N-2LC

Common Items
FX2N-2LC*1*2
Specifications
Centigrade(°C) Fahrenheit(°F)
Number of input points 2ch
Thermocouple type K, J, R, S, E, T, B, N, PL II, WRe5-26, U, and L
B

FX3UC-4AD
FX3U-4AD
JIS C 1602-1995
Input signal
3-wire platinum resistance thermometer sensor(s)
Pt100 JIS C 1604-1997, JPt100 JIS C 1604-1981
Examples: Examples:
• Type K • Type K
Rated temperature range -100°C to +1300°C -100°F to +2400°F C
• Type J • Type J

FX3U-4AD-ADP
-100.0°C to +800.0°C -100°F to +2100°F
Examples: Examples:
• Type K • Type K
Digital output -100 to +1300 -100 to +2400
• Type J • Type J D
-1000 to +8000 -100 to +2100

FX3G-2AD-BD
Resolution 1°C or 0.1°C 1°F or 0.1°F
Overall accuracy

Ambient temperature:
±0.3°C(±1digit) for full scale
23±5°C
E
Ambient temperature:
±0.7°C (±1digit) for full scale

FX3U-4DA
0 to 55°C

±1.0°C
Cold junction temperature
±2.0°C if the input value is in the range from -150°C to -100°C
compensation error
±3.0°C if the input value is in the range from -200°C to -150°C
Time required for
500ms(Sampling period)
F
conversion

FX3U-4DA-ADP
zWhen type K (input mode 2) zWhen type K (input mode 4)
is set: is set:
+1300 +2400

G
Digital
output

Digital
output

FX3G-1DA-BD
Input characteristics

-100°C -100°F
0 +1300°C 0 +2400°F
Temperature Temperature
-100 -100 H
FX3U-4AD-PT

• The photocoupler is used to insulate the analog input area from the PLC.
Insulation method • The DC/DC converter is used to insulate the power supply from the analog inputs.
• Channels are insulated from each other.
-ADP

Number of I/O points

8 points (Taken from either the input or output points of the PLC.)
occupied I
*1. For FX2N-2LC, the rated temperature range, digital output value, and resolution depend on the selected sensor
FX3U-4AD-PTW

and mode.
*2. Accuracy is not guaranteed for the temperature range of 0°C to 399°C(0°F to 799°F) of the thermocouple -B input
-ADP

and for the temperature range of 0°F to 32°F of the PL II and WRe5-26 inputs.

J
FX3U-4AD-PNK
-ADP

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Manual Introduction (Types, Contents, and Obtainment)
Common Items 5.1 How to Use the Manuals

5. Manual Introduction (Types, Contents, and Obtainment)

This chapter describes the FX3U/FX3UC/FX3G Series PLC main unit instruction manual and the various
manuals of analog products.

5.1 How to Use the Manuals

Various analog products can be connected to the FX Series PLC to control the analog inputs and outputs.

PLC

For PLC wiring and installation:

•HARDWARE MANUAL Supplied
(This manual is supplied with the product.)
•User's Manual - Hardware Edition Supplied separately

For sequence programs:

•Programming manual Supplied separately

Analog products
Depending on the product type, the "Installation Manual" or the "User's Manual" is supplied with the
product.
For a detailed description, refer to the separate manual "User's Manual - Analog Control Edition" as
described below:
For installation and parts identification:
•Installation Manual Supplied
(For a detailed description of the programming method, refer to the
separate manual.)

For installation, parts identification, use, and examples of programs:

•User's Manual Supplied
(Necessary information is in the user's manual, but for a detailed description,
refer to the separate manual.)

Analog control

Voltage input Current input Voltage output Current output Temperature input

For use of each analog control product:

This •User's Manual - Analog Control Edition
manual Supplied separately

For each analog product, use this manual for details on wiring/setup details, example
programs, and troubleshooting methods.

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Manual Introduction (Types, Contents, and Obtainment)
Common Items 5.2 Description of Related Manuals

A
5.2 Description of Related Manuals

Common Items
The main manuals necessary for the use of analog products are described below.
These manuals are classified into two groups: manuals necessary for the PLC main unit, and manuals
necessary for analog products.
The manuals specified as "supplied separately" are not supplied with the products. Other manuals are B
supplied with the corresponding products.

FX3UC-4AD
FX3U-4AD
5.2.1 Analog control manuals
The following manuals are common manuals that can be used for any of the FX3U/FX3UC/FX3G Series analog
products. C

FX3U-4AD-ADP
Supplied with
Document product or
Manual type Description
number supplied
separately
FX3G/FX3U/FX3UC Series PLC
FX3G/FX3U/FX3UC Series Supplied
This manual describes the details of the FX3G/ FX3U/
D
User’s Manual JY997D16701 separately

FX3G-2AD-BD
FX3UC Series PLC analog products.
- Analog Control Edition (This manual)

5.2.2 Manuals related to the FX3G/FX3U/FX3UC Series PLC main unit

For a detailed description of the commands to be used for the sequence programs, refer to the programming E
manual. For a detailed description of the hardware, such as wiring of the PLC main unit, refer to the User's

FX3U-4DA
Manual - Hardware Edition.

Supplied with
Document product or
Manual type Description
number supplied
separately F
FX3G Series PLC

FX3U-4DA-ADP
This manual describes various items necessary for the
FX3G Series Supplied with
JY997D33401 hardware of the FX3G Series PLC main unit, such as
HARDWARE MANUAL product
specifications, wiring, and installation.
This manual describes various items necessary for the
FX3G Series User’s Manual
JY997D31301
Supplied FX3G Series PLC main unit and various items for the G
- Hardware Edition separately hardware, such as extension specifications, wiring, and

FX3G-1DA-BD
installation.
FX3U Series PLC
This manual describes various items necessary for the
FX3U Series Supplied with
JY997D18801 hardware of the FX3U Series PLC main unit, such as
HARDWARE MANUAL product
specifications, wiring, and installation. H
This manual describes various items necessary for the
FX3U-4AD-PT

FX3U Series User’s Manual Supplied FX3U Series PLC main unit and various items for the
JY997D16501
- Hardware Edition separately hardware, such as extension specifications, wiring, and
installation.
-ADP

FX3UC Series PLC

The input/output specifications and the wiring and I
installation methods for the FX3UC (D, DSS) PLC are
FX3U-4AD-PTW

FX3UC (D, DSS) Series Supplied with excerpted from the FX3UC Series User's Manual (for
JY997D28601
HARDWARE MANUAL product Hardware).
For details, refer to the FX3UC Series User's Manual (for
-ADP

Hardware).

FX3UC-32MT-LT-2
JY997D31601
Supplied with
This manual describes various items necessary for the
hardware of the FX3UC-32MT-LT-2 PLC main unit, such
J
HARDWARE MANUAL product
FX3U-4AD-PNK

as specifications, wiring, and installation.

-ADP

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Manual Introduction (Types, Contents, and Obtainment)
Common Items 5.2 Description of Related Manuals

Supplied with
Document product or
Manual type Description
number supplied
separately
Provides detailed information on the hardware, such as
FX3UC Series User’s Manual Supplied
JY997D28701 the input/output specifications and detailed wiring,
- Hardware Edition separately
installation, and maintenance methods for the FX3UC PLC.
FX3G, FX3U, FX3UC Series PLC
FX3G/FX3U/FX3UC Series This manual describes the basic and application
Supplied
Programming Manual - Basic JY997D16601 commands necessary for the FX3G/FX3U/FX3UC Series
separately
& Applied Instruction Edition PLC.

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Manual Introduction (Types, Contents, and Obtainment)
Common Items 5.2 Description of Related Manuals

A
5.2.3 Manuals of analog units

Common Items
The manuals of various analog units are described below:

Supplied with
Document product or
Manual type
number supplied
Description B
separately

FX3UC-4AD
FX3U-4AD
Analog input unit
This manual describes the FX3G-2AD-BD analog input
FX3G-2AD-BD Supplied with
JY997D33501 expansion board hardware, such as specifications and
INSTALLATION MANUAL product
installation.

FX3U-4AD Supplied with

This manual describes the FX3U-4AD analog input C
JY997D20701 special function block hardware, such as specifications

FX3U-4AD-ADP
INSTALLATION MANUAL product
and installation, and also describes various programs.
This manual describes the FX3U-4AD-ADP analog input
FX3U-4AD-ADP Supplied with
JY997D13901 special adapter hardware, such as specifications and
USER’S MANUAL product
installation.

FX2NC-4AD Supplied with

This manual describes the FX2NC-4AD analog input D
JY997D07801 special function block hardware, such as specifications

FX3G-2AD-BD
USER’S MANUAL product
and installation, and also describes various programs.
This manual describes the FX2N-8AD analog input
FX2N-8AD Supplied with
JY992D86001 special function block hardware, such as specifications
USER’S MANUAL product
and installation, and also describes various programs.

FX2N-4AD Supplied with

This manual describes the FX2N-4AD analog input E
JY992D65201 special function block hardware, such as specifications
USER’S GUIDE product

FX3U-4DA
and installation, and also describes various programs.
This manual describes the FX2N-2AD analog input
FX2N-2AD Supplied with
JY992D74701 special function block hardware, such as specifications
USER’S GUIDE product
and installation, and also describes various programs.
Analog output unit F
This manual describes the FX3G-1DA-BD analog output

FX3U-4DA-ADP
FX3G-1DA-BD Supplied with
JY997D33601 expansion board hardware, such as specifications and
INSTALLATION MANUAL product
installation.
This manual describes the FX3U-4DA analog output
FX3U-4DA Supplied with
JY997D20801 special function block hardware, such as specifications
INSTALLATION MANUAL product
and installation.
G
This manual describes the FX3U-4DA-ADP analog output
FX3U-4DA-ADP Supplied with

FX3G-1DA-BD
JY997D14001 special adapter hardware, such as specifications and
USER’S MANUAL product
installation.
This manual describes the FX2NC-4DA analog output
FX2NC-4DA Supplied with
JY997D07601 special function block hardware, such as specifications
USER’S MANUAL product
and installation, and also describes various programs.
This manual describes the FX2N-4DA analog output
H
FX2N-4DA Supplied with
FX3U-4AD-PT

JY992D65901 special function block hardware, such as specifications

USER’S GUIDE product
and installation, and also describes various programs.
This manual describes the FX2N-2DA analog output
-ADP

FX2N-2DA Supplied with

JY992D74901 special function block hardware, such as specifications
USER’S GUIDE product
and installation, and also describes various programs.
Analog input/output unit
I
FX3U-4AD-PTW

This manual describes the FX2N-5A analog input/output

FX2N-5A Supplied with
JY997D11401 special function block hardware, such as specifications
USER’S MANUAL product
and installation, and also describes various programs.
-ADP

This manual describes the FX0N-3A analog input/output

FX0N-3A Supplied with
JY992D49001 special function block hardware, such as specifications
USER’S GUIDE product
and installation, and also describes various programs. J
FX3U-4AD-PNK
-ADP

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Manual Introduction (Types, Contents, and Obtainment)
Common Items 5.2 Description of Related Manuals

Supplied with
Document product or
Manual type Description
number supplied
separately
Temperature sensor unit
This manual describes the FX3U-4AD-PT-ADP platinum
FX3U-4AD-PT-ADP Supplied with
JY997D14701 resistance thermometer input special adapter hardware,
USER’S MANUAL product
such as specifications and installation.
This manual describes the FX3U-4AD-PTW-ADP
FX3U-4AD-PTW-ADP Supplied with
JY997D29101 platinum resistance thermometer input special adapter
USER’S MANUAL product
hardware, such as specifications and installation.
This manual describes the FX3U-4AD-PNK-ADP
FX3U-4AD-PNK-ADP Supplied with
JY997D29201 resistance thermometer input special adapter hardware,
USER’S MANUAL product
such as specifications and installation.
This manual describes the FX3U-4AD-TC-ADP
FX3U-4AD-TC-ADP Supplied with
JY997D14801 thermocouple input special adapter hardware, such as
USER’S MANUAL product
specifications and installation.
This manual describes the FX2N-4AD-PT platinum
FX2N-4AD-PT Supplied with resistance thermometer input special function block
JY992D65601
USER’S GUIDE product hardware, such as specifications and installation, and
also describes various programs.
This manual describes the FX2N-4AD-TC thermocouple
FX2N-4AD-TC Supplied with input special function block hardware, such as
JY992D65501
USER’S GUIDE product specifications and installation, and also describes various
programs.
This manual describes the FX2N-2LC temperature
FX2N-2LC Supplied with
JY992D85601 adjustment special function block hardware, such as
USER’S GUIDE product
specifications and installation.
This manual describes the FX2N-2LC temperature
FX2N-2LC Supplied adjustment special function block hardware, such as
JY992D85801
USER’S MANUAL separately specifications and installation, and also describes various
programs.

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 6 Generic Names and Abbreviations in This Manual
Common Items 5.2 Description of Related Manuals

Common Items
6. Generic Names and Abbreviations in This Manual
1. Main unit B

FX3UC-4AD
FX3U-4AD
Abbreviation, generic name Description
PLC
Generic name for the FX0, FX0S, FX1S, FX0N, FX1N, FX1, FX2(FX), FX2N, FX3G,
FX Series PLC
FX3U, FX1NC, FX2NC, and FX3UC Series PLC
FX3G Series Generic name for the FX3G Series PLC
C
FX3G Series PLC or main unit Generic name for the FX3G Series PLC main unit

FX3U-4AD-ADP
FX3U Series Generic name for the FX3U Series PLC
FX3U Series PLC or main unit Generic name for the FX3U Series PLC main unit
FX3UC Series Generic name for the FX3UC Series PLC
FX3UC Series PLC or
main unit
Generic name for the FX3UC Series PLC main unit
D

FX3G-2AD-BD
2. Expansion board and special adapter
Abbreviation, generic name Description
Expansion board E

FX3U-4DA
Generic name for analog expansion board, communication expansion board,
Expansion board special adapter connection expansion board and variable analog
potentiometer expansion board.
Analog expansion board Generic name for 2AD-BD, 1DA-BD
2AD-BD
1DA-BD
FX3G-2AD-BD
FX3G-1DA-BD
F

FX3U-4DA-ADP
Communication expansion board Generic name for 232BD, 422BD, 485BD, and USBBD.
232BD FX3U-232-BD, FX3G-232-BD, FX2N-232-BD, FX1N-232-BD
422BD FX3U-422-BD, FX3G-422-BD, FX2N-422-BD, FX1N-422-BD
485BD FX3U-485-BD, FX3G-485-BD, FX2N-485-BD, FX1N-485-BD
USBBD FX3U-USB-BD G

FX3G-1DA-BD
Variable analog potentiometer
Generic name for 8AV-BD
expansion board
8AV-BD FX3G-8AV-BD
Special adapter connection board
Generic name for CNVBD.
or connector conversion board
CNVBD FX3U-CNV-BD, FX2N-CNV-BD, FX1N-CNV-BD
H
FX3U-4AD-PT

Special adapter
Generic name for High-speed input/output special adapter,
Special adapter
communication special adapter, and Analog special adapter.
-ADP

High-speed input/output special

Generic name for High-speed input/output special adapter.
adapter
I
2HSY-ADP FX3U-2HSY-ADP
FX3U-4AD-PTW

4HSX-ADP FX3U-4HSX-ADP
Communication special adapter Generic name for communication special adapter.
-ADP

232ADP FX3U-232ADP(-MB), FX2NC-232ADP, FX0N-232ADP, FX-232ADP

485ADP FX3U-485ADP(-MB), FX2NC-485ADP, FX0N-485ADP, FX-485ADP
J
FX3U-4AD-PNK
-ADP

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 6 Generic Names and Abbreviations in This Manual
Common Items 5.2 Description of Related Manuals

Abbreviation, generic name Description

Analog special adapter Generic name for analog special adapter.
4AD-ADP FX3U-4AD-ADP
4DA-ADP FX3U-4DA-ADP
PT-ADP FX3U-4AD-PT-ADP
PTW-ADP FX3U-4AD-PTW-ADP
PNK-ADP FX3U-4AD-PNK-ADP
TC-ADP FX3U-4AD-TC-ADP
Special adapter connection
conversion adapter or connection Generic name for CNVADP
conversion adapter
CNVADP FX3G-CNV-ADP

3. Extension unit
Abbreviation, generic name Description
Voltage/current input
Generic name for the FX2N Series extension unit, FX2NC Series extension unit,
and FX0N Series extension unit.
Extension unit The number of connectable units, however, depends on the type of the main
unit. To check the number of connectable units, refer to the User’s Manual -
Hardware Edition of the main unit to be used for your system.
Generic name for FX2N Series input/output powered extension unit, FX2N Series
FX2N Series extension unit input/output extension block, FX2N Series special function unit, and FX2N Series
special function block.
Generic name for FX2NC Series input/output extension block and FX2NC Series
FX2NC Series extension unit
special function block.
Generic name for FX0N Series input/output extension block and FX0N Series
FX0N Series extension unit
special function block.
Generic name for FX3U Series special function block, FX3UC Series special
function block, FX2N Series special function unit, FX2N Series special function
Special function unit/block
block, FX2NC Series special function block, and FX0N Series special function
block.
FX3U Series special
FX3U-4AD, FX3U-4DA, FX3U-20SSC-H, FX3U-64CCL
function block
FX3UC Series special
FX3UC-4AD
function block
FX2N Series special
FX2N-10GM, FX2N-20GM, FX2N-1RM-E-SET, FX2N-1RM-SET
function unit
FX2N-232IF, FX2N-16CCL-M, FX2N-32CCL, FX2N-32ASI-M, FX2N-2AD,
FX2N-4AD, FX2N-8AD, FX2N-4AD-PT, FX2N-4AD-TC, FX2N-2LC, FX2N-2DA,
FX2N Series special FX2N-4DA, FX2N-5A, FX2N-1HC, FX2N-1PG-E, FX2N-1PG, FX2N-10PG
function block The number of connectable units, however, depends on the type of main unit.
To check the number of connectable units, refer to the User’s Manual - Hard-
ware Edition of the main unit to be used for your system.
FX2NC Series special
FX2NC-4AD, FX2NC-4DA, FX2NC-1HC
function block
FX0N Series special
FX0N-3A
function block

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 6 Generic Names and Abbreviations in This Manual
Common Items 5.2 Description of Related Manuals

A
4. Peripheral unit

Common Items
Abbreviation, generic name Description
Peripheral unit
Generic name for programming software, handy programming panel,
Peripheral unit
and display units.
Programming tool
B

FX3UC-4AD
FX3U-4AD
Programming tool Generic name for programming software, and handy programming panel.
Programming software Generic name for Programming software.
Generic name for SW D5C-GPPW-J and SW D5C-GPPW-E programming
GX Developer
software packages.

5. Manual
C

FX3U-4AD-ADP
Abbreviation, generic name Description
FX3G hardware manual FX3G Series User's Manual - Hardware Edition
FX3U hardware manual FX3U Series User's Manual - Hardware Edition
FX3UC hardware manual FX3UC Series User's Manual - Hardware Edition
FX3G/FX3U/FX3UC Series Programming Manual - Basic and Applied Instruction D
Programming manual
Edition

FX3G-2AD-BD
E

FX3U-4DA
F

FX3U-4DA-ADP
G

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 6 Generic Names and Abbreviations in This Manual
Common Items 5.2 Description of Related Manuals

MEMO

A-54
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition
FX3U-4AD/FX3UC-4AD (4-channel Analog Input)

Common Items
B

FX3UC-4AD
FX3U-4AD
FX3G/FX3U/FX3UC Series Programmable
Controllers C

FX3U-4AD-ADP
User's Manual [Analog Control Edition]
FX3U-4AD (4-channel Analog Input)
D
FX3UC-4AD (4-channel Analog Input)

FX3G-2AD-BD
E

FX3U-4DA
F

FX3U-4DA-ADP
G

FX3G-1DA-BD

H
FX3U-4AD-PT

Foreword
-ADP

This manual describes the specifications, wiring, and operation methods for the FX3U-4AD/FX3UC-4AD
special extension block (4-channel analog input) and should be read and understood before attempting to
install or use the unit. I
FX3U-4AD-PTW

Store this manual in a safe place so that you can take it out and read it whenever necessary. Always forward
it to the end user.
-ADP

This manual confers no industrial property rights or any rights of any other kind, nor does it confer any patent
licenses. Mitsubishi Electric Corporation cannot be held responsible for any problems involving industrial property
rights which may occur as a result of using the contents noted in this manual. J
FX3U-4AD-PNK

© 2005 MITSUBISHI ELECTRIC CORPORATION

-ADP

B-1
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition
FX3U-4AD/FX3UC-4AD (4-channel Analog Input)

B-2
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 1 Outline
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 1.1 Outline of Functions

Common Items
1. Outline
This chapter outlines the FX3U-4AD/FX3UC-4AD. B
For common descriptions of the FX3U-4AD and FX3UC-4AD, these model names are referred to as the 4AD.

FX3UC-4AD
FX3U-4AD
1.1 Outline of Functions
The FX3U-4AD is an analog special function block which is connectable with the FX3G, FX3U and FX3UC
Series PLC used to capture 4-ch voltage/current data. The FX3UC-4AD cannot be connected to the FX3G/
C

FX3U-4AD-ADP
FX3U Series PLC.
1) Up to 8*1 units can be connected to the FX3G/FX3U/FX3UC Series PLC.
(including the other special function blocks).
2) Either "voltage input" or "current input" can be specified for each channel.
3) The A/D conversion values will be stored in the 4AD buffer memory (BFM). D

FX3G-2AD-BD
4) Set the digital filter to read out stable A/D conversion values.
5) For each channel, up to 1,700 A/D conversion values can be stored as history data.

Point and section to be

System referred to E

FX3U-4DA
Up to 8 units*1 connect to the FX3G/FX3U/FX3UC Series PLC
(including other types of special function blocks)
•••••• Number of connectable units

FX3G/FX3U Series PLC

••••••
To check the connectable PLC
model number, refer to F
Section 1.3.

FX3U-4DA-ADP
•••••••••

FX3UC Series PLC

Analog data ••••••
For a detailed description of
wiring, refer to Chapter 3. G
Flowmeter, pressure sensor, etc.

FX3G-1DA-BD
For a detailed description of
•••••• analog data reading programs,
refer to Chapter 4, 6, and 7.

••••••
For a detailed description of
the buffer memory, refer to
H
Program Buffer memory
FX3U-4AD-PT

Transmission direction Section 5.3, and Section 5.4.

• FROM(FNC 78) BFM#0
• TO(FNC 79) To use FROM/TO instruction
•••

••••••
or to directly specify the BFM,
• BFM direct
-ADP

BFM#6999 refer to Section 5.2.

specification(U
\G
)*2

Refer to the system configuration shown in the FX3G/FX3U/FX3UC User's Manual - Hardware Edition to check the I
number of connectable units and to configure the entire system.
FX3U-4AD-PTW

*1. Up to 7 units can be connected to the FX3UC-32MT-LT(-2) PLC.

-ADP

*2. This function is just available for FX3U and FX3UC PLCs.

J
FX3U-4AD-PNK
-ADP

B-3
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 1 Outline
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 1.2 Setup Procedure Before Starting Operation

1.2 Setup Procedure Before Starting Operation

Before starting to use the 4AD, follow the procedure below to set up the system:

FX3U-4AD/FX3UC-4AD

Refer to Chapter 1.

Outline Outline of system:

• Version number of compatible PLC
• Version number of compatible
programming tool
Refer to Chapter 2.

Check of specifications Specifications:

• Operation environment
Refer to the common • Performance specifications
pages. • Input characteristics

System configuration and selection System configuration:

(Refer to the analog control common
pages.)
Refer to Chapter 3. • Selection of units

Wiring Wiring:
• Power supply line
• Analog input line
Refer to Chapter 4.

Analog data reading (test program) Input mode specification:

• Input mode specification program for
channel 1 to 4
Refer to Chapter 5.

Buffer memory (BFM) check Buffer memory:

• Buffer memory read/write method
• List of buffer memories
Refer to Chapter 6. • Details of buffer memory

Adjustment of input characteristics Adjustment of input characteristics:

• Input characteristics change procedure

Refer to Chapter 7.

Program edit Program edit:

• Basic program
• Convenient function program

If the error status data or the input analog value is

abnormal, refer to Chapter 8 "Troubleshooting."

B-4
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 1 Outline
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 1.3 Connectable PLC and Version Numbers

A
1.3 Connectable PLC and Version Numbers

Common Items
FX3U-4AD is compatible with the following PLC.

Compatible PLC Version number Date of production

FX3U Series PLC Ver. 2.20 or later from first product B

FX3UC-4AD
FX3U-4AD
FX3UC Series PLC Ver. 1.30 or later August 2004 and later
FX3G Series PLC Ver. 1.00 or later from first product

FX3UC-4AD is compatible with the following PLC.

Compatible PLC Version number Date of production

C

FX3U-4AD-ADP
FX3UC Series PLC Ver. 1.30 or later August 2004 and later

1. Version check
Special data register D8001 contains information for determining the PLC version number. D

FX3G-2AD-BD
D8001 2 4 1 0 0
PLC type and
version number Version data (Example: Ver. 1.00)

(
PLC type Example: 24 = FX3U and FX3UC series
26 = FX3G series ) E

FX3U-4DA
2. How to look at the manufacturer's serial number
The year and month of product production can be seen from the manufacturer's serial number "SERIAL"
indicated on the label adhered to the right side of the product.
F

FX3U-4DA-ADP
Example:
FX3U-48MR/ES(production number : 570001)

Right side MITSUBISHI PROGRAMMABLE

CONTROLLER

MODEL FX3U-48MR/ES
100-240VAC 50/60Hz 40W
OUT:30VDC/240VAC 2A(COSφ=1) G

FX3G-1DA-BD
SERIAL 570001

80M1 IND. CONT. EQ.

MITSUBISHI ELECTRIC CORPORATION
MADE IN JAPAN

5 7 0 0 0 1 H
FX3U-4AD-PT

Control number
Month (Example: 7 = July), 1 to 9 = January to September,
X = October, Y = November, Z = December
-ADP

Year (Example: 5 = 2005), last digit of dominical year

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

B-5
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 1 Outline
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 1.4 Version Number of Compatible Programming Tools

1.4 Version Number of Compatible Programming Tools

Use a programming tool with the following version number to create 4AD programs for the FX3G/FX3U/FX3UC
Series PLC.

FX3U-4AD
Software Compatible version number Remarks
GX Developer Ver. SW8 P or later
(Ver. 8.13P) When selecting the model, select FX3U(C)*1.
• SW D5C-GPPW-J
• SW D5C-GPPW-E (Ver. 8.72A or later) When selecting the model, select FX3G.

FX3UC-4AD
Software Compatible version number Remarks
GX Developer
Ver. SW8 P or later
• SW D5C-GPPW-J
(Ver. 8.13P) When selecting the model, select FX3U(C)*1.
• SW D5C-GPPW-E

If a programming tool with the wrong version number is used, some instructions and devices cannot be used.
*1. For Ver. 8.13P to 8.24A of GX Developer, select FX3UC for the PLC type.

B-6
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 Specifications
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 2.1 Generic Specifications

Common Items
2. Specifications
This chapter describes the general, power supply, and performance specifications for the 4AD. B

FX3UC-4AD
FX3U-4AD
2.1 Generic Specifications

Item Specifications C

FX3U-4AD-ADP
Ambient 0 to 55°C (32 to 131°F) when operating
temperature -25 to 75°C (-13 to 167°F) when stored
Relative
5 to 95%RH (no condensation) when operating
humidity
Frequency Acceleration Half amplitude D
(Hz) (m/s2) (mm)

FX3G-2AD-BD
10 times of testing in
Vibration 10 - 57 - 0.035 each direction (X-, Y-,
DIN Rail Mounting
resistance 57 - 150 4.9 - and Z-axis directions)
(Total: 80 min, each)
10 - 57 - 0.075
Direct Mounting*1

Shock
57 - 150 9.8 -
E
147 m/s2 Acceleration, Action time: 11ms, 3 times by half-sine pulse in each direction X, Y, and Z

FX3U-4DA
resistance
Noise Using noise simulator of:
resistance Noise voltage: 1,000Vp-p / Noise width: 1µs / Rise: 1ns / Cycle: 30 to 100Hz
Dielectric
withstand
voltage
500 V AC, for 1 min
Between all terminals and ground terminal
F

FX3U-4DA-ADP
Insulation 5MΩ or more using 500V DC
resistance insulation resistance meter
Class D grounding (grounding resistance: 100 Ω or less)
Grounding
<Common grounding with a heavy electrical system is not allowed.>*2
Working
Free from corrosive or flammable gas and excessive conductive dust G
atmosphere

FX3G-1DA-BD
Working
< 2000m*3
altitude

*1. The direct mounting method cannot be used with FX3UC-4AD.

*2.
PLC Other
equipment PLC Other
equipment PLC Other
equipment
H
FX3U-4AD-PT

Independent grounding Shared grounding Common grounding

Best condition Good condition Not allowed
-ADP

→ For a detailed description of grounding, refer to Section 3.5.

*3. If the pressure is higher than the atmospheric pressure, do not use the 4AD; 4AD may malfunction. I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

B-7
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 Specifications
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 2.2 Power Supply Specifications

2.2 Power Supply Specifications

FX3U-4AD

Item Specifications
A/D conversion 24V DC ±10%, 90mA
circuit drive power (It is necessary to supply 24V DC from the terminal block.)
5V DC, 110mA
CPU drive power (Since the internal power is supplied from the main unit, it is not necessary to supply power
externally.)

FX3UC-4AD

Item Specifications
A/D conversion 24V DC ±10%, 80mA
circuit drive power (It is necessary to supply 24V DC from the power connector.)
5V DC, 100mA
CPU drive power
(Since the internal power is supplied from the main unit, it is not necessary to supply the power.)

2.3 Performance Specifications

Specifications
Item
Voltage input Current input
-10V to +10V DC -20mA to +20mA DC, 4mA to 20mA DC
Analog input range
(Input resistance: 200kΩ) (Input resistance: 250Ω)
Offset*1 -10V to +9V*2 -20mA to +17mA*3
Gain*1 -9V to +10V*2 -17mA to +30mA*3
Absolute maximum
±15V ±30mA
input
Digital output With sign, 16bits, binary With sign, 15bits, binary
0.32mV (20V / 64,000) 1.25µA (40mA / 32,000)
Resolution*4 2.5mV (20V × 1/8000) 5.00µA (40mA × 1/8000)
• Ambient temperature: 25°C±5°C
• Ambient temperature: 25°C±5°C ±0.5% (±200µA) for 40mA full scale
±0.3% (±60mV) for 20V full scale Same accuracy (±200µA) for 4mA to 20mA input
Overall accuracy
• Ambient temperature: 0°C to 55°C • Ambient temperature: 0°C to 55°C
±0.5% (±100mV) for 20V full scale ±1% (±400µA) for 40mV full scale
Same accuracy (±400µA) for 4mA to 20mA input
Time required for 500µs × number of selected channels
A/D conversion (If 1 or more channels use the digital filter(s): 5ms × number of selected channels)
• The photocoupler is used to insulate the analog input area from the PLC.
Insulation method • The DC/DC converter is used to insulate the analog input area from the power supply unit.
• Channels are not insulated from each other.
Number of I/O
8 points (Taken from either the input or output points of the PLC.)
points occupied

*1. Adjustment of the offset or gain value will not affect the resolution. In the direct indication mode,
however, the offset/gain cannot be adjusted.
*2. The offset and the gain should satisfy the following condition:
1V ≤ (Gain - Offset)
*3. The offset and the gain should satisfy the following condition:
3 mA ≤ (Gain - Offset) ≤ 30 mA
*4. If 1 or more channels use the digital filter(s), the time required for A/D conversion will be
"5 ms × number of selected channels."

B-8
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 Specifications
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 2.4 Input Mode (Characteristics) BFM #0

A
2.4 Input Mode (Characteristics) BFM #0

Common Items
For the 4AD, there are two types of input characteristics: voltage (-10 to +10V) and current (4 to 20mA, -20 to
+20mA) input characteristics. The input characteristics depend on the set input mode as described below. For
each input range, there are 3 input modes.
B
1. Voltage input characteristics [-10 to +10V] (Input mode: 0 to 2)

FX3UC-4AD
FX3U-4AD
Set input mode: 2
Set input mode: 0 Set input mode: 1
Input type: Voltage input
Input type: Voltage input Input type: Voltage input
(analog value direct indication)
Analog input range: -10 to +10V Analog input range: -10 to +10V
Analog input range: -10 to +10V
Digital output range: -32000 to +32000 Digital output range: -4000 to +4000
Digital output range: -10000 to +10000
Offset/gain adjustment: Possible Offset/gain adjustment: Possible
Offset/gain adjustment: Impossible C

FX3U-4AD-ADP
Digital value Digital value Digital value
+32640 +4080 +10200
+32000 +4000 +10000
+10.2V

+10.2V
+10.2V
Input Input Input
voltage -10V 0 voltage -10V 0 voltage -10V 0 D
+10V +10V +10V

FX3G-2AD-BD
-10.2V
-10.2V

-10.2V

-32000 -4000 -10000

-32640 -4080 -10200

2. Current input characteristics [4 to 20mA] (Input mode: 3 to 5) E

FX3U-4DA
Set input mode: 5
Set input mode: 3 Set input mode: 4
Input type: Current input
Input type: Current input Input type: Current input
(analog value direct indication)
Analog input range: 4 to 20mA Analog input range: 4 to 20 mA
Analog input range: 4 to 20 mA
Digital output range: 0 to 16000 Digital output range: 0 to 4000
Digital output range: 4000 to 20000
Offset/gain adjustment: Possible Offset/gain adjustment: Possible
Offset/gain adjustment: Impossible
F

FX3U-4DA-ADP
Digital value Digital value Digital value
16400 4100 20400

16000 4000 20000

G
20.4 mA

20.4 mA

20.4 mA

FX3G-1DA-BD
4000

0 4mA 20mA Current 0 4mA 20mA Current 0 4mA 20mA Current

input input input

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

B-9
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 Specifications
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 2.4 Input Mode (Characteristics) BFM #0

3. Current input characteristics [-20 to +20mA] (Input mode: 6 to 8)

Set input mode: 8
Set input mode: 6 Set input mode: 7
Input type: Current input
Input type: Current input Input type: Current input
(analog value direct indication)
Analog input range: -20 to +20mA Analog input range: -20 to +20mA
Analog input range: -20 to +20mA
Digital output range: -16000 to +16000 Digital output range: -4000 to +4000
Digital output range: -20000 to +20000
Offset/gain adjustment: Possible Offset/gain adjustment: Possible
Offset/gain adjustment: Impossible

Digital value Digital value Digital value

+16320 +4080 +20400
+16000 +4000 +20000

+20.4mA

+20.4mA
Current +20.4mA Current Current
Input -20mA 0 Input -20mA 0 Input -20mA 0
+20mA +20mA +20mA

-20.4mA

-20.4mA
-20.4mA

-16000 -4000 -20000

-16320 -4080 -20400

B-10
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 2.4 Input Mode (Characteristics) BFM #0

Common Items
3. Wiring
This chapter describes the 4AD wiring. B
Observe the following cautions when wiring the 4AD.

FX3UC-4AD
FX3U-4AD
WIRING PRECAUTIONS

• Make sure to cut off all phases of the power supply externally before attempting wiring work.
Failure to do so may cause electric shock or damages to the product. C

FX3U-4AD-ADP
WIRING PRECAUTIONS

• Connect the DC power supply wiring to the dedicated terminals described in this manual.
If an AC power supply is connected to a DC input/output terminal or DC power supply terminal, the PLC will be
burnt out.
D

FX3G-2AD-BD
• Do not wire vacant terminals externally.
Doing so may damage the product.
• Perform class D grounding (grounding resistance: 100Ω or less) to the grounding terminal on the main unit.
Do not use common grounding with heavy electrical systems.
• When drilling screw holes or wiring, make sure cutting or wire debris does not enter the ventilation slits.
Failure to do so may cause fire, equipment failures or malfunctions. E
• Make sure to observe the following precautions in order to prevent malfunctions under the influence of noise:

FX3U-4DA
- Do not bundle the power line or twisted shielded cable together with or lay it close to the main circuit, high-
voltage line, or load line.
Otherwise, noise disturbance and/or surge induction are likely to take place. As a guideline, lay the control line
at least 100mm (3.94") or more away from the main circuit, high-voltage line, or load line.
- Ground the shield of the analog input/output cable at one point on the signal receiving side.
However, do not use common grounding with heavy electrical systems. F
• Make sure to properly wire to the European terminal board in accordance with the following precautions.

FX3U-4DA-ADP
Failure to do so may cause electric shock, a short-circuit, wire breakage, or damage to the product.
- The disposal size of the cable end should be 9 mm (0.35").
- Tightening torque should be between 0.22 to 0.25 N•m.
- Twist the end of strand wire and make sure there are no loose wires.
- Do not solder-plate the electric wire ends.
- Do not connect more than the specified number of wires or electric wires of unspecified size. G
- Affix the electric wires so that neither the terminal block nor the connected parts are directly stressed.

FX3G-1DA-BD
• Make sure to properly wire the terminal block in accordance with the following precautions.
Failure to do so may cause electric shock, a short-circuit, wire breakage, or damage to the product.
- The disposal size of the cable end should follow the dimensions described in this manual.
- Tightening torque should be between 0.5 and 0.8 N•m.

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

B-11
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 3.1 Terminal Layout

3.1 Terminal Layout

FX3U-4AD

Signal Application
24+
24V DC power supply
24-
Ground terminal
V+
VI- Channel-1 analog input
I+
FG
V+ Channel-2 analog input
VI-
I+
FG
V+ Channel-3 analog input
VI-
I+
FG
V+ Channel-4 analog input
VI-
I+

FX3UC-4AD

FX3UC-4AD Signal Application

V1+
V1+

PW

I1+
I1+

Channel-1 analog input

COM1
24V
COM1

SLD
SLD

A/D

V2+
V2+

I2+
I2+

Channel-2 analog input

SLD COM2

COM2
SLD
•
•

Do not connect any lines.

•
•

V3+
V3+

I3+
I3+

Channel-3 analog input

COM3
COM3

SLD
SLD

V4+
V4+

I4+
I4+

Channel-4 analog input

COM4
COM4

SLD
SLD

Ground terminal

B-12
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 3.2 Cable and Terminal Tightening Torque

A
3.2 Cable and Terminal Tightening Torque

Common Items
3.2.1 Power cable (FX3UC-4AD)
The power crossover cable (type "C" shown in the following table) is supplied with the FX3UC-4AD. B
To connect the power cable, refer to the User's Manual - Hardware Edition of the PLC main unit.

FX3UC-4AD
FX3U-4AD
There are 3 types of power cables as shown in the following table. Types "A" and "B" are supplied with the
main unit, and type "C" is supplied with the input extension blocks or the special function blocks for FX3UC
Series.
Type Application Model Length Cable supplied with

A Power cable for main unit FX2NC-100MPCB

1m C
(3’ 3")

FX3U-4AD-ADP
FX3UC Series PLC main unit
Input power cable for input 1m
B FX2NC-100BPCB
extension block (3’ 3")
• Input extension block for FX2NC
Input power crossover cable for 0.1m Series
C FX2NC-10BPCB1
input extension block (0’ 3") • Special function block for FX3UC/
FX2NC Series
D

FX3G-2AD-BD
The crossover cable (type "C") can skip up to 4 16-point output blocks to connect units.
If more blocks should be skipped to supply power to an input block, use cable type "B".

<Self-made power cable>

To use self-made power cables, use the following wire rods and connectors:
E

FX3U-4DA
Specifications/model
Wire size AWG24 (0.2mm2)
Crimp-style terminal 50083-8014 (manufactured by Molex Japan Co., Ltd.)
For main unit 51030-0330 (manufactured by Molex Japan Co., Ltd.)
Housing
For input extension block 51030-0230 (manufactured by Molex Japan Co., Ltd.) F

FX3U-4DA-ADP
Supply the 24V DC power to FX3UC-4AD via the power supply connector.

3.2.2 Cable (FX3U-4AD)

The FX3U-4AD terminal block is designed for M3 screws. G
The end disposal of the cable shows blow.

FX3G-1DA-BD
Tighten the terminal to a torque of 0.5 N•m to 0.8 N•m.
• When one wire is connected to one terminal
φ3.2 (0.13") Terminal Crimp
screw
6.2 mm (0.24")
or less
terminal
H
FX3U-4AD-PT

φ3.2 (0.13")
6.2 mm (0.24") Terminal
’[Žq
or less
-ADP

• When two wires are connected to one terminal I

FX3U-4AD-PTW

φ3.2 (0.13")
6.2 mm (0.24") Terminal Crimp
or less screw terminal
6.3 mm(0.25")
-ADP

or more
φ3.2 (0.13") J
6.2 mm (0.24") Terminal
FX3U-4AD-PNK

or less
6.3 mm(0.25")
or more
-ADP

B-13
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 3.2 Cable and Terminal Tightening Torque

3.2.3 Cable (FX3UC-4AD)

Use the following cables to connect with counterpart equipment. Terminate the cable end as shown below.

1. Cable
Applicable cable and tightening torque
Wire size (stranded/ Tightening
Termination
single-wire) torque
0.3mm2 to 0.5mm2 • To connect a stranded cable, peel the cover off the cable
Single wire and then twist the core before connection.
(AWG22 to 20)
• To connect a single-wire cable, peel the cover off the
Double wire 0.3mm2(AWG22) cable before connection.
0.3mm2 to 0.5mm2 0.22N•m to • Rod terminal with insulation sleeve
Rod terminal (AWG22 to 20) 0.25N•m (recommended terminal)
with (Refer to the external AI 0.5-8WH : Manufactured by Phoenix Contact
insulation view of rod terminal • Caulking tool
sleeve shown in the following CRIMPFOX ZA 3 : Manufactured by Phoenix Contact
figure.) (or CRIMPFOX UD 6 : Manufactured by Phoenix Contact)

2. Termination of cable end

To terminate the cable, treat the stranded/single-wire directly or use the rod terminal with insulation sleeve.
• To directly terminate end of stranded/single-wire cable: Termination of cable end
- Terminate the end of the stranded cable so that the "barbed wires"
cannot protrude.
- Do not solder-plate the end of the cable.
9mm
• To terminate cable end using rod terminal with insulation sleeve:
(0.35")
If the cable sheath is too thick, it may be difficult to insert the cable
Insulation sleeve Contact area
into the insulation sleeve. For this reason, select an appropriate cable (Crimp area)
while referring to the external view.
Manufacturer Model Caulking tool 8mm (0.31")
CRIMPFOX ZA 3 2.6mm 14mm
Phoenix Contact AI 0.5-8WH (0.1")
(or CRIMPFOX UD 6) (0.55")

3. Tool
• To tighten terminals, use a purchased small-sized screwdriver whose head is straight and is not widened
as shown in the right figure.

Note:
If the diameter of screwdriver grip is too small, tightening torque will not
The head
be able to be achieved. Use the following recommended screwdriver or should be
an appropriate replacement (grip diameter: approximately 25mm). straight.
Manufacturer Model
Phoenix Contact SZS 0.4×2.5 0.4mm 2.5mm
(0.01") (0.09")

B-14
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 3.3 Examples of Power Supply Circuit

A
3.3 Examples of Power Supply Circuit

Common Items
3.3.1 FX3U-4AD
Below are shown examples of circuits for using the 24V DC service power supply of the FX3G/FX3U Series B
PLC.

FX3UC-4AD
FX3U-4AD
1) Sink input [- common] wiring

AC power
100 to 240 V
C

FX3U-4AD-ADP
Class-D
grounding
L N S/S 0V 24V 24+ 24-
D

FX3G-2AD-BD
+15V

FX3G/FX3U Series PLC

(main unit) -15V
FX3U-4AD
E
Connect the "S/S" terminal of the main unit to the "24V" terminal.

FX3U-4DA
2) Source input [+ common] wiring

AC power
F

FX3U-4DA-ADP
100 to 240 V

Class-D
grounding G

FX3G-1DA-BD
L N S/S 0V 24V 24+ 24-

+15V

FX3G/FX3U Series PLC

(main unit)
H
-15V
FX3U-4AD-PT

FX3U-4AD

Connect the "S/S" terminal of the main unit to the "0V" terminal.
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

B-15
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 3.3 Examples of Power Supply Circuit

3.3.2 FX3UC-4AD

Terminal block Terminal block

FX3UC Series PLC FX2NC Series PLC

FX3UC-4AD FX3UC-4AD
(Main unit) (Input extension block*2)

+15V +15V

-15V -15V
Power
Power Power crossover Power
crossover crossover
connector connector connector connector
Power connector
24- 24+ 24- 24+ 24- 24+ 24- 24+ 24- 24+ 24- 24+ 24- 24+
Power Power
Black Red Green connector Black Red Black Red connector
Black Red Black Red Black Red

Class-D FX2NC-10BPCB1 FX2NC-10BPCB1

grounding Power crossover cable Power crossover cable

24V DC
FX2NC-100BPCB
Power cable*1

*1. The FX3UC- MT/D and FX3UC-32MT-LT(-2) are supplied together with power cable.
*2. The FX2NC- EX-DS and FX2NC-16EX-T-DS do not have a power connector, and receive power
from the input connector.

3.3.3 Cautions regarding connection of power cables

• Ground the " " terminal and " " terminal to the Class - D grounding line (100 Ω or less) together
with the ground terminal of the main unit.
• To perform crossover wiring to connect the power line from FX3UC-4AD to a succeeding extension block,
remove the resin cover from the power crossover connector using nippers.
• For the timing of power-on/off when using an external power supply, see the following manual of the
connected PLC.
→ Refer to the FX3G Series User’s Manual - Hardware Edition.
→ Refer to the FX3U Series User’s Manual - Hardware Edition.
→ Refer to the FX3UC Series User’s Manual - Hardware Edition.

B-16
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 3.4 Analog Input Line

A
3.4 Analog Input Line

Common Items
The analog input type, "voltage input "or "current input", can be selected for each channel.

3.4.1 FX3U-4AD
B

FX3UC-4AD
FX3U-4AD
External power supply FX3U-4AD
wiring
24+ +15V
24V DC
*1 24- -15V
C
Class-D grounding
*2

FX3U-4AD-ADP
If current input is
selected
ch 6.8kΩ
*3 ch
V+
*4 250Ω
I+ D
VI-

FX3G-2AD-BD
200kΩ
FG
If voltage input is *2
selected
ch
*3 6.8kΩ ch
V+
*5
I+
250Ω E

FX3U-4DA
VI-
200kΩ
FG
*2

ch : represents the channel number.

F

FX3U-4DA-ADP
*1. For FX3G/FX3U Series PLC (AC power type), the 24V DC service power supply is also available.
*2. The [FG] terminal and the [ ] terminal are connected internally.
There is no “FG” terminal for ch1. When using ch1, connect directly to the [ ] terminal.
*3. Use a 2-core twisted shield wire for analog input line, and separate it from other power lines or
inductive lines.
G

FX3G-1DA-BD
*4. For the current input, short-circuit the [V+] terminal and the [I+] terminal.
*5. If there is voltage ripple in the input voltage or there is noise in the external wiring, connect a capacitor
of approximately 0.1 to 0.47µF 25 V.

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

B-17
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 3.5 Grounding

3.4.2 FX3UC-4AD

If current input is FX3UC-4AD

selected Terminal
*1 block
6.8kΩ ch
V +
*2 250Ω
I +
200kΩ
COM
SLD *3
If voltage input is
selected
*1 6.8kΩ ch
V +
250Ω
I +
200kΩ
COM
SLD

*4 •

Class-D
grounding

V +, I +, ch : represents the channel number.

*1. Use the 2-core shielded twisted pair cable for the analog input lines, and separate the analog input
lines from the other motive power lines or inductive lines.
*2. To use the current input, be sure to short circuit the line between the V + terminal and the I
+ terminal ( : channel number).
*3. The SLD and " " terminals are connected to each other inside.
*4. Do not connect any lines to the "•" terminal.

3.5 Grounding
Grounding should be performed as stated below.
• The grounding resistance should be 100Ω or less.
• Independent grounding should be performed for best results.
When independent grounding is not performed, perform "shared grounding" as shown in the following
figure.
→ For details, refer to the User’s Manual - Hardware Edition of each Series.

PLC Other PLC Other PLC Other

equipment equipment equipment

Independent grounding Shared grounding Common grounding

Best condition Good condition Not allowed

• Use the following grounding wire.

FX3U-4AD AWG14 (2mm2)

FX3UC-4AD AWG22-20 (0.3 to 0.5mm2)

• The PLC grounding point should be close, and all grounding wires should be as short as possible.

B-18
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Analog Input
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 4.1 Analog Input Procedures

Common Items
4. Analog Input
This chapter describes the minimum programming necessary to readout the 4AD analog data. B
Follow the procedure below to confirm that the analog data can be properly read out.

FX3UC-4AD
FX3U-4AD
4.1 Analog Input Procedures

1 Unit number check

C

FX3U-4AD-ADP
Unit numbers from 0 to 7 will be assigned to the special function units/blocks starting from the left.
When units/blocks are connected to the FX3UC-32MT-LT(-2) PLC, unit numbers from 1 to 7 are
assigned. Check the unit number assigned to the 4AD.
Unit
number: 0
Unit
number: 1
Unit
number: 2 D

FX3G-2AD-BD
Main unit Input/output Special Special Input/output Special
(FX3U Series extension function block function block extension function unit
PLC) block block

FX3U-4DA
2 Input mode (BFM #0) setting
Depending on the analog signal generator to be connected, set the input mode (BFM #0) for each
channel. F

FX3U-4DA-ADP
Use hexadecimal numbers for input mode setting. Set the corresponding channel digit to the input
mode setting value specified in the following table:

H
ch4 ch1 G
ch3 ch2

FX3G-1DA-BD
Setting Analog input
Input mode Digital output range
value range
0 Voltage input mode -10V to +10V -32000 to +32000
1 Voltage input mode -10V to +10V -4000 to +4000 H
Voltage input
FX3U-4AD-PT

2 -10V to +10V -10000 to +10000

Analog value direct indication mode
3 Current input mode 4mA to 20mA 0 to 16000
-ADP

4 Current input mode 4mA to 20mA 0 to 4000

5
Current input mode
Analog value direct indication mode
4mA to 20mA 4000 to 20000 I
FX3U-4AD-PTW

6 Current input mode -20mA to +20mA -16000 to +16000

7 Current input mode -20mA to +20mA -4000 to +4000
-ADP

Current input mode

8 -20mA to +20mA -20000 to +20000
Analog value direct indication mode
F Channel not used J
FX3U-4AD-PNK

→ For a detailed description of the standard input characteristics, refer to Section 2.4.
→ For a detailed description of the input mode (BFM #0), refer to Subsection 5.4.1.
-ADP

B-19
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Analog Input
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 4.1 Analog Input Procedures

3 Creation of sequence program

Create the program as follows to read analog signals.
• While referring to step 2, set the input mode "H****".
• While referring to step 1, set the unit number in
- Program Example (For FX3U, FX3UC Series PLCs)*1
Input mode (step 2)
Unit number (step 1)
Initial pulse
M8002
FNC 12 H**** U \GO Specify the input mode (BFM #0) for channels
MOV P 1 to 4.
RUN monitor
M8000
T0 K50

T0 5 seconds after starting the PLC, the digital

FNC 15 U \G10 D0 K4 values of channels 1 to 4 (BFM #10 to #13) will
BMOV be read out to D0 to D3.

Unit number (step 1)

*1. Use the FROM and TO instructions in FX3G PLCs.

4 Sequence program transfer and data register check

1) Transfer the sequence program, and start the PLC.
2) The 4AD analog data input mode will be stored in data registers (D0 to D3) of the PLC.
3) Check that the data is stored in D0 to D3.
→ If the data is not properly stored, refer to Chapter 8 "Troubleshooting."

B-20
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Buffer Memory (BFM)
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 5.1 Assignment of Unit Numbers and Outline of Buffer Memory

Common Items
5. Buffer Memory (BFM)
This chapter describes the buffer memory incorporated in 4AD. B

FX3UC-4AD
FX3U-4AD
5.1 Assignment of Unit Numbers and Outline of Buffer Memory

1. Assignment of unit numbers

Unit numbers from 0 to 7 will be assigned to the special function units/blocks starting from the left. C
When the units/blocks are connected to the FX3UC-32MT-LT(-2) PLC, unit numbers from 1 to 7 are assigned.

FX3U-4AD-ADP
When connected to the FX3G/FX3U/FX3UC (D, DSS) Series PLC
Unit Unit Unit
number: 0 number: 1 number: 2
D

FX3G-2AD-BD
Input/output Special Special Input/output Special
Main unit extension extension
block function block function block block function unit

E
When connected to the FX3UC-32MT-LT(-2) PLC

FX3U-4DA
Unit number: 0
(Incorporated Unit Unit Unit
CC-Link/LT) number: 1 number: 2 number: 3

Main unit Input/output Input/output

F
Special Special Special

FX3U-4DA-ADP
(FX3UC-32MT extension extension
-LT(-2)) block function block function block block function unit

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

B-21
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Buffer Memory (BFM)
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 5.1 Assignment of Unit Numbers and Outline of Buffer Memory

2. Outline of buffer memory

The analog signals input into the 4AD will be converted into digital values and then stored in the 4AD buffer
memory.
To switch the input mode between voltage input and current input, or to adjust the offset or gain, numeric data
will be sent from the main unit and written/set in the 4AD buffer memory.
To read/write data from/to the 4AD buffer memory, the buffer memory can be directly specified using the
FROM/TO instruction or an applied instruction. Using this function, sequence programs can be easily created.

Main unit 4AD • BFM direct 4AD

specification*1
• TO instruction
Buffer
memory
• BFM direct
• BFM direct
specification*1
specification*1
• TO instruction
Sequence Buffer • FROM instruction
program memory
Digital
• BFM direct Digital value
specification*1 value
• FROM A/D A/D
instruction conversion conversion

Analog data Analog data

Flowmeter, pressure sensor, etc.

*1. Since buffer memory direct specification (U
\G
) can directly specify the buffer memory in the source or
destination area of an applied instruction, programs can be created efficiently. (This function is supported
only in FX3U/FX3UC PLCs.)
→ For a detailed description of buffer memory reading/writing, refer to Section 5.2.
→ For a detailed description of the buffer memory, refer to Section 5.4.

B-22
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Buffer Memory (BFM)
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 5.2 Buffer Memory Reading/Writing Method

A
5.2 Buffer Memory Reading/Writing Method

Common Items
To read or write to the 4AD buffer memory, use the FROM/TO instructions or buffer memory direct
specifications*1.
However, to use buffer memory direct specification*1, software compatible with FX3U/FX3UC Series PLCs is
required. B

FX3UC-4AD
FX3U-4AD
*1. This function is supported only in FX3U/FX3UC PLCs.
→ For a detailed description of software compatible with the FX3U/FX3UC Series PLC,
refer to Section 1.4.

5.2.1 Buffer memory direct specification (FX3U, FX3UC PLC only)

C
When directly specifying the buffer memory, specify the following device in the source or destination area of

FX3U-4AD-ADP
the applied instruction as follows:

U \G Enter a numeric value in

Unit number (0 to 7) Buffer memory number (0 - 6999)
D
1. Example 1

FX3G-2AD-BD
If the following program is created, data in buffer memory (BFM #10) of unit 1 will be multiplied by the data
(K10), and then the multiplication result will be output to data registers (D10, D11).
READ command
FNC 22 U1\G10 K10 D10
MUL
E
Multiplication result

FX3U-4DA
Unit number
Buffer memory number Multiplier

2. Example 2
If the following program is created, the value in data register (D20) is added to K10 and written to buffer
memory (BFM #6) of unit 1. F
WRITE command

FX3U-4DA-ADP
FNC 20 D20 K10 U1\G6
ADD

(
Addition Unit number
result Buffer memory number )
Augend Addend
G
5.2.2 FROM/TO instruction (FX3G, FX3U, FX3UC PLC)

FX3G-1DA-BD
1. FROM instruction (Reading out BFM data to PLC)
Use the FROM instruction to read the data from the buffer memory.
In a sequence program, use this instruction as follows:
READ command
FNC 78
H
K1 K10 D10 K1
FX3U-4AD-PT

FROM
Number of transfer
Unit number data points
-ADP

Buffer memory number Destination register

If the above program is created, 1 point of data will be read out from the buffer memory BFM #10 of unit No.1
to data register D10. I
FX3U-4AD-PTW

2. TO instruction (Writing PLC data into BFM)

Use the TO instruction to write data to a buffer memory.
In a sequence program, use this instruction as follows:
-ADP

WRITE command
FNC 79
TO
K1 K0 H3300 K1
J
Number of transfer
FX3U-4AD-PNK

Unit number data points

Buffer memory number Transfer source
-ADP

If the above program is created, 1 point of data (H3300) will be written to buffer memory BFM #0 of unit No.1.

B-23
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Buffer Memory (BFM)
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 5.3 Buffer Memory List (BFM)

5.3 Buffer Memory List (BFM)

4AD incorporates the following buffer memories.
→ For a detailed description of the buffer memory, refer to Section 5.4 and subsequent sections.

BFM number Description Setting range Initial value Data type Reference
Hexadeci- Subsection
#0*1 Input mode setting for channels 1 to 4 *2 H0000 at delivery
mal 5.4.1
#1 Not used - - - -
#2 Averaging time units for channel 1 1 to 4095 K1 Decimal
#3 Averaging time units for channel 2 1 to 4095 K1 Decimal Subsection
#4 Averaging time units for channel 3 1 to 4095 K1 Decimal 5.4.2

#5 Averaging time units for channel 4 1 to 4095 K1 Decimal

#6 Channel-1 digital filter setting 0 to 1600 K0 Decimal
#7 Channel-2 digital filter setting 0 to 1600 K0 Decimal Subsection
#8 Channel-3 digital filter setting 0 to 1600 K0 Decimal 5.4.3

#9 Channel-4 digital filter setting 0 to 1600 K0 Decimal

#10 Channel-1 data (current data or average data) - - Decimal
#11 Channel-2 data (current data or average data) - - Decimal Subsection
#12 Channel-3 data (current data or average data) - - Decimal 5.4.4

#13 Channel-4 data (current data or average data) - - Decimal

#14 to #18 Not used - - - -
Data change disable
Disables adjustment of the following buffer
memory locations:
• Input mode specification (BFM #0)
To enable data
• Initialization function (BFM #20)
change: K2080
• Input characteristics writing (BFM #21) Subsection
#19*1 To disable data K2080 at delivery Decimal
• Convenient functions (BFM #22) 5.4.5
change: Value
• Offset data (BFM #41 to #44)
other than K2080
• Gain data (BFM #51 to #54)
• Automatic transfer-to data register
specification (BFM #125 to #129)
• Data history sampling time setting (BFM #198)
Initialization function:
Set "K1" in this buffer memory to perform
Subsection
#20 initialization. At the completion of initialization, K0 or K1 K0 Decimal
5.4.6
buffer memory will be automatically reset to
"K0".
Input characteristics writing:
Write the input characteristics offset/gain value.
Hexadeci- Subsection
#21 At the completion of writing, buffer memory will *3 H0000
mal 5.4.7
be automatically reset to "H0000" (b0 to b3:
OFF).

*1. If power failure occurs, the EEPROM will retain its data.
*2. To specify the input mode of each channel, set each digit using hexadecimal numbers 0 to 8 and F.
*3. Use b0 to b3.

B-24
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Buffer Memory (BFM)
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 5.3 Buffer Memory List (BFM)

Common Items
BFM number Description Setting range Initial value Data type Reference
Convenient function setting:
Convenient functions:Automatic send
Hexadeci- Subsection
#22*1 function, data addition, upper/lower limit
detection, abrupt change detection, peak
*2 H0000 at delivery
mal 5.4.8 B

FX3UC-4AD
FX3U-4AD
value holding
#23 to #25 Not used - - - -
Upper/lower limit value error status (Valid if b1 Hexadeci- Subsection
#26 - H0000
of BFM #22 is set to ON) mal 5.4.9

#27
Abrupt change detection status (Valid if b2 of
BFM #22 is set to ON)
- H0000
Hexadeci-
mal
Subsection
5.4.10 C

FX3U-4AD-ADP
Hexadeci- Subsection
#28 Over-scale status - H0000
mal 5.4.11
Hexadeci- Subsection
#29 Error status - H0000
mal 5.4.12
Subsection
#30 Model code K2080 - K2080 Decimal
5.4.13 D

FX3G-2AD-BD
#31 to #40 Not used - - - -

#41*1 Channel-1 offset data (Unit: mV or µA) • Voltage input: K0 at delivery Decimal
BFM #21 -10000 to
#42 *1 Channel-2 offset data (Unit: mV or µA) will be K0 at delivery Decimal
+9000*3 Subsection
used for
#43*1 Channel-3 offset data (Unit: mV or µA) • Current input: K0 at delivery Decimal 5.4.14
writing
#44*1 Channel-4 offset data (Unit: mV or µA)
data.
-20000 to
+17000*4 K0 at delivery Decimal
E

FX3U-4DA
#45 to #50 Not used - - - -

#51 *1 Channel-1 gain data (Unit: mV or µA) • Voltage input: K5000 at delivery Decimal
BFM #21 -9000 to
#52*1 Channel-2 gain data (Unit: mV or µA) will be K5000 at delivery Decimal
+10000*3 Subsection
used for
#53*1 Channel-3 gain data (Unit: mV or µA) writing
data.
• Current input:
-17000 to
K5000 at delivery Decimal 5.4.14
F
#54*1 Channel-4 gain data (Unit: mV or µA) +30000*4 K5000 at delivery Decimal

FX3U-4DA-ADP
#55 to #60 Not used - - - -
Channel-1 addition data (Valid if b0 of BFM #22
#61 -16000 to +16000 K0 Decimal
is set to ON)
Channel-2 addition data (Valid if b0 of BFM #22
#62
is set to ON)
-16000 to +16000 K0 Decimal
Subsection G

FX3G-1DA-BD
Channel-3 addition data (Valid if b0 of BFM #22 5.4.15
#63 -16000 to +16000 K0 Decimal
is set to ON)
Channel-4 addition data (Valid if b0 of BFM #22
#64 -16000 to +16000 K0 Decimal
is set to ON)
#65 to #70 Not used - - - -

Channel-1 lower limit value error setting (Valid if

Minimum digital H
#71 value in input Decimal
FX3U-4AD-PT

b1 of BFM #22 is set to ON)

range
Minimum digital
Channel-2 lower limit value error setting (Valid if From minimum
-ADP

#72 value in input Decimal

b1 of BFM #22 is set to ON) digital value in range Subsection
input range to

#73
Channel-3 lower limit value error setting (Valid if upper limit value
Minimum digital
value in input Decimal
5.4.16
I
b1 of BFM #22 is set to ON) error setting value
FX3U-4AD-PTW

range
Minimum digital
Channel-4 lower limit value error setting (Valid if
#74 value in input Decimal
b1 of BFM #22 is set to ON)
-ADP

range
#75 to #80 Not used - - - -

*1. If power failure occurs, the EEPROM will retain its data.
J
FX3U-4AD-PNK

*2. Use b0 to b7.

*3. The offset and gain values should satisfy the following conditions: Gain value - Offset value ≥ 1000
*4. The offset and gain values should satisfy the following conditions: 30000 ≥ Gain value - Offset value ≥ 3000
-ADP

B-25
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Buffer Memory (BFM)
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 5.3 Buffer Memory List (BFM)

BFM number Description Setting range Initial value Data type Reference
Channel-1 upper limit value error setting Maximum digital
#81 Decimal
(Valid if b1 of BFM #22 is set to ON) value in input range
Channel-2 upper limit value error setting From lower limit Maximum digital
#82 value error setting value in input range Decimal
(Valid if b1 of BFM #22 is set to ON) Subsection
value to maximum
Channel-3 upper limit value error setting Maximum digital 5.4.16
#83 digital value in Decimal
(Valid if b1 of BFM #22 is set to ON) input range value in input range
Channel-4 upper limit value error setting Maximum digital
#84 Decimal
(Valid if b1 of BFM #22 is set to ON) value in input range
#85 to #90 Not used - - - -
Channel-1 abrupt change detection value From 1 to 50% of
#91 5% of full scale Decimal
(Valid if b2 of BFM #22 is set to ON) full scale
Channel-2 abrupt change detection value From 1 to 50% of
#92 5% of full scale Decimal
(Valid if b2 of BFM #22 is set to ON) full scale Subsection
Channel-3 abrupt change detection value From 1 to 50% of 5.4.17
#93 5% of full scale Decimal
(Valid if b2 of BFM #22 is set to ON) full scale
Channel-4 abrupt change detection value From 1 to 50% of
#94 5% of full scale Decimal
(Valid if b2 of BFM #22 is set to ON) full scale
#95 to #98 Not used - - - -
Clear of upper/lower limit error data or abrupt Subsection
#99 *1 H0000 -
change error data 5.4.18
#100 Not used - - - -
Channel-1 minimum peak value (Valid if b3 of
#101 - - Decimal
BFM #22 is set to ON)
Channel-2 minimum peak value (Valid if b3 of
#102 - - Decimal
BFM #22 is set to ON) Subsection
Channel-3 minimum peak value (Valid if b3 of 5.4.19
#103 - - Decimal
BFM #22 is set to ON)
Channel-4 minimum peak value (Valid if b3 of
#104 - - Decimal
BFM #22 is set to ON)
#105 to #108 Not used - - - -
Hexadeci- Subsection
#109 Minimum peak value resetting *3 H0000
mal 5.4.20
#110 Not used - - - -
Channel-1 maximum peak value (Valid if b3
#111 - - Decimal
of BFM #22 is set to ON)
Channel-2 maximum peak value (Valid if b3
#112 - - Decimal
of BFM #22 is set to ON) Subsection
Channel-3 maximum peak value (Valid if b3 5.4.19
#113 - - Decimal
of BFM #22 is set to ON)
Channel-4 maximum peak value (Valid if b3
#114 - - Decimal
of BFM #22 is set to ON)
#115 to #118 Not used - - - -
Hexadeci- Subsection
#119 Maximum peak value resetting *3 H0000
mal 5.4.20
#120 to #124 Not used - - - -
Peak values (Minimum: BFM #101 to #104 /
Maximum: #111 to #114) automatic transfer-
Subsection
#125*2 to first data register specification (Valid if b4 of 0 to 7992 K200 at delivery Decimal
5.4.21
BFM #22 is set to ON / Occupies of 8
consecutive points)
*1. Use b0 to b2.
*2. If power failure occurs, the EEPROM will retain its data.
*3. Use b0 to b3.

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Buffer Memory (BFM)
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 5.3 Buffer Memory List (BFM)

A
BFM number Description Setting range Initial value Data type Reference

Common Items
Upper/lower limit error status data (BFM #26)
Subsection
#126*1 automatic transfer-to data register specification 0 to 7999 K208 at delivery Decimal
5.4.22
(Valid if b5 of BFM #22 is set to ON)
Abrupt change detection status data (BFM #27)
Subsection
#127*1 automatic transfer-to data register specification
(Valid if b6 of BFM #22 is set to ON)
0 to 7999 K209 at delivery Decimal
5.4.23 B

FX3UC-4AD
FX3U-4AD
Over-scale status data (BFM #28) automatic
Subsection
#128*1 transfer-to data register specification (Valid if b7 0 to 7999 K210 at delivery Decimal
5.4.24
of BFM #22 is set to ON)
Error status data (BFM #29) automatic transfer-
Subsection
#129*1 to data register specification (Valid if b8 of BFM 0 to 7999 K211 at delivery Decimal
#22 is set to ON)
5.4.25
C

FX3U-4AD-ADP
#130 to #196 Not used - - - -
Selection of cyclic data update function (function Hexadeci- Subsection
#197 *2 H0000
for data history) mal 5.4.26
Subsection
#198*1 Data history sampling time setting (Unit: ms) 0 to 30000 K15000 Decimal
5.4.27

#199 Data history resetting/stoppage *3 H0000

Hexadeci- Subsection D
mal 5.4.28

FX3G-2AD-BD
#200 Channel-1 data history (initial value) - K0 Decimal
Decimal
~

~
#1899 Channel-1 data history (1,700th value) - K0 Decimal
#1900 Channel-2 data history (initial value) - K0 Decimal
Decimal
E
~

FX3U-4DA
#3599 Channel-2 data history (1,700th value) - K0 Decimal Subsection
#3600 Channel-3 data history (initial value) - K0 Decimal 5.4.29

Decimal
~

#5299 Channel-3 data history (1,700th value) - K0 Decimal

#5300 Channel-4 data history (initial value) - K0 Decimal F

FX3U-4DA-ADP
Decimal
~

#6999 Channel-4 data history (1,700th value) - K0 Decimal

#7000 to #8063 System area - - - -

*1. If power failure occurs, the EEPROM will retain its data.
*2. Use b0 to b3. G
*3. Use b0 to b3 and b8 to b11.

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Buffer Memory (BFM)
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 5.4 Buffer Memory Details

5.4 Buffer Memory Details

5.4.1 BFM #0: Input mode specification

Initial value (at delivery): H0000

Numeric data type: Hexadecimal (H)

Specify the input modes of channel 1 to 4.

4 hexadecimal digits are assigned to specify the input modes of the 4 channels.
Change the value of each digit to change the input mode of each channel. 0 to 8 or F can be set for each digit.

H
ch4 ch1
ch3 ch2

The different types of input modes are shown in the following table:
→ For a detailed description of input characteristics, refer to Section 2.4.

Set value Analog input Digital output

Input mode
[HEX] range range
0 Voltage input mode -10V to +10V -32000 to +32000
1 Voltage input mode -10V to +10V -4000 to +4000
Voltage input
2*1 Analog value direct indication mode
-10V to +10V -10000 to +10000

3 Current input mode 4mA to 20mA 0 to 16000

4 Current input mode 4mA to 20mA 0 to 4000
Current input
5*1 Analog value direct indication mode
4mA to 20mA 4000 to 20000

6 Current input mode -20mA to +20mA -16000 to +16000

7 Current input mode -20mA to +20mA -4000 to +4000
Current input
8*1 Analog value direct indication mode
-20mA to +20mA -20000 to +20000

9 to E Setting not possible - -

F Channel not used - -

*1. The offset/gain values cannot be changed.

1. Cautions regarding input mode setting
• If the input mode is set (changed), the analog input characteristics will be changed automatically.
Furthermore, when the offset/gain value is changed, the characteristics can be set to the desired values.
(The resolution cannot be changed.)
• If the analog value direct indication (*1) is specified, the offset/gain value cannot be changed.
• It takes approximately 5 seconds to determine the input mode. For this reason, after changing the input
mode, be sure to wait for 5 seconds or more before writing other data.
• HFFFF (no channels used) cannot be set.
2. Caution regarding EEPROM writing
If data is written to BFM #0, #19, #21, #22, #125 to #129, or #198, the data will also be written to the 4AD
EEPROM.
The maximum number of EEPROM rewrites is 10,000 times. Therefore, when creating a program, do not
frequently write data to the above buffer memories (BFM).

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FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 5.4 Buffer Memory Details

A
5.4.2 BFM #2 to #5: Averaging time

Common Items
Setting range: 1 to 4095
Initial value: K1
Numeric data type: Decimal (K)

To change the channel data type from the immediate data (channels 1 to 4: BFM #10 to #13) to the average B

FX3UC-4AD
FX3U-4AD
data, set the desired averaging time (channels 1 to 4 : BFM #2 to 5).
The relation between the set averaging time and the corresponding operation is shown in the following table.
→ For a detailed description of channel data update timing, refer to Subsection 5.4.4.

Averaging
time (BFM
#2 to #5)
Channel data (BFM #10 to #13) type Error descriptions C

FX3U-4AD-ADP
Immediate data K0 will be set, and the averaging time
0 or less (Each time the A/D conversion is performed, the channel setting error (b10 of BFM #29) will
data will be updated.) occur.
Immediate data
1 (initial
value)
(Each time the A/D conversion is performed, the channel
data will be updated.)
-
D

FX3G-2AD-BD
Average data
(Each time the A/D conversion is performed, the average
2 to 400 -
value will be calculated and the channel data will be
updated.)
Average data
(Each time the A/D conversion data reaches the averaging E
401 to 4095 -
time, the average data will be calculated and the channel

FX3U-4DA
data will be updated.)
Average data 4096 will be set, and the averaging
4096 or more (Each time the A/D conversion is performed, the channel time setting error (b10 of BFM #29) will
data will be updated.) occur.
F

FX3U-4DA-ADP
1. Application
If the measurement signal contains comparatively reduced ripple noise, such as supply voltage frequency,
averaging will result in obtaining of stable data.

2. Cautions regarding averaging time setting G

• To use the averaging function, be sure to set the digital filter of the corresponding channel to "0". (Digital

FX3G-1DA-BD
filter setting: BFM #6 to #9 for channels 1 to 4)
To use the digital filter function, be sure to set the averaging time of the corresponding channel to "1".
(Averaging time: BFM #2 to #5 for channels 1 to 4)
If the averaging time is set to a value other than "1" and the digital filter (BFM #6 to #9 for channels 1 to 4)
is set to a value other than "0", the digital filter setting error (b11 of BFM #29) will occur.
H
• If one of the channels uses the digital filter, the A/D conversion time will be set to 5 ms for all the channels.
FX3U-4AD-PT

• If the averaging time is out of the setting range, the averaging time setting error (b10 of BFM #29) will
occur.
-ADP

• If the averaging time is set, the data history function cannot be used.

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Buffer Memory (BFM)
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 5.4 Buffer Memory Details

5.4.3 BFM #6 to #9: Digital filter setting

Setting range: 0 to 1600

Initial value: K0
Numeric data type: Decimal (K)

To use the digital filter for channel data (BFM #10 to #13 for channels 1 to 4), set the digital filter value in the
corresponding buffer memory (BFM #6 to #9 for channels 1 to 4).
→ For a detailed description of channel data update timing, refer to Subsection 5.4.4.
If the digital filter function is used, the relation between the analog input value and the set digital filter value or
the digital output value (channel data) will be as follows:
• Digital filter value (BFM #6 to #9 for channels 1 to 4) > Fluctuation of analog signal (fluctuation
width: less than 10 times of sampling)
If the fluctuation of the analog signal (input value) is less than the set digital filter value, the analog input
value will be converted into a stabilized digital output value and stored in the corresponding buffer memory
(BFM #10 to #13 for channels 1 to 4).
• Digital filter value (BFM #6 to #9 for channels 1 to 4) < Fluctuation of analog signal
If the fluctuation of the analog signal (input value) is more than the set digital filter value, the digital output
value will follow the analog input value, and the digital output value equal to the analog input value will be
stored in the corresponding buffer memory (BFM #10 to #13 for channels 1 to 4).

Analog input value The digital output value will

Digital output value follow the analog input value.
Analog input value

Set digital filter value

Set digital filter value

Converted into stabilized digital output value

(Fluctuation width is less than 10 times of sampling)
Time
The relation between the set value and the corresponding operation is shown in the following table:

Set value Operation

Less than 0 Disables the digital filter function. A setting error will occur (b11 of BFM #29 will be set to ON).
0 Disables the digital filter function.
1 to 1600 Enables the digital filter function.
1601 or more Disables the digital filter function. A setting error will occur (b11 of BFM #29 will be set to ON).

1. Application
If the measurement signal contains steep spike noise, use the digital filter instead of the averaging function.
The digital filter produces more stabilized data results.

2. Cautions regarding digital filter setting

• To use the digital filter function, be sure to set the averaging time of the corresponding channel to "1".
(Averaging time: BFM #2 to #4 for channels 1 to 4) If the averaging time is set to a value other than "1" and
the digital filter is set to a value other than "0", the digital filter setting error (b11 of BFM #29) will occur.
• If one of the channels uses the digital filter, the A/D conversion time will be set to 5 ms for all the channels.
• If the digital filter set value is not in the range from 0 to 1600, the digital filter setting error (b11 of BFM #29)
will occur.

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FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 5.4 Buffer Memory Details

A
5.4.4 BFM #10 to #13: Channel data

Common Items
Numeric data type: Decimal (K)

Use these buffer memories to store the A/D converted digital values.
The channel data (BFM #10 to #13 for channels 1 to 4) and the data update timing will depend on the set
averaging time (BFM #2 to #5 for channels 1 to 4) or the digital filter setting condition (BFM #6 to #9 for B

FX3UC-4AD
FX3U-4AD
channels 1 to 4) as shown in the following table.
→ For a detailed description of the averaging time, refer to Subsection 5.4.2.
→ For a detailed description of digital filter functions, refer to Subsection 5.4.3.

Averaging Digital filter Channel data (BFM #10 to #13) update timing
time function C
(BFM #2 to #5) (BFM #6 to #9) Channel data type Update timing

FX3U-4AD-ADP
Immediate data Each time the A/D conversion is performed, the
0 (The digital filter "0" will be set, and the data will be updated.
0 or less
will not be used.) averaging time setting error The update timing will be as follows:
(b10 of BFM #29) will occur.
0 (The digital filter
Immediate data
Update time = 500µs*1 × Number of
selected channels
D
will not be used.)

FX3G-2AD-BD
Each time the A/D conversion is performed, the
1 1 to 1600 Immediate data data will be updated.
(The digital filter The digital filter function will The update timing will be as follows:
will be used.) be used. Update time = 5ms × Number of selected
channels E

FX3U-4DA
Each time the A/D conversion is performed, the
data will be updated.
2 to 400 Average data The update timing will be as follows:

Update time = 500µs*1× Number of

selected channels
401 to 4095
0 (The digital filter
will not be used.) Average data Each time the A/D conversion is performed for
F

FX3U-4DA-ADP
the set averaging time, the data will be updated.
Average data
The update timing will be as follows:
"4096" will be set, and the
4096 or more
averaging time setting error Update time = 500µs*1 × Number of
(b10 of BFM #29) will occur. selected channels × Averaging time

*1. "500µs" represents the A/D conversion time. G

However, if one of the channels uses the digital filter function, the A/D conversion time will be 5 ms for

FX3G-1DA-BD
all the channels.

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

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FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 5.4 Buffer Memory Details

5.4.5 BFM #19: Data change disable

Setting range: K2080, or value other than K2080
Initial value (at delivery): K2080
Numeric data type: Decimal (K)
Disables adjustment of the following BFMs:
• Input mode specification (BFM #0) • Initialization function (BFM #20)
• Input characteristics writing (BFM #21) • Convenient functions (BFM #22)
• Offset data (BFM #41 to #44) • Gain data (BFM #51 to #54)
• Automatic transfer-to data register specification (BFM #125 to #129)
• Data history sampling time setting (BFM #198)
Set the value of BFM #19 (Data change disable) as follows:
Set value Description
K2080 Data change enabled.
Value other than K2080 Data change disabled.

1. Caution regarding EEPROM writing

If data is written to BFM #0, #19, #21, #22, #125 to #129, or #198, the data will also be written to the 4AD
EEPROM.
→ For a detailed description of caution regarding EEPROM writing, refer to Subsection 5.4.1.

5.4.6 BFM #20: Initialization function (resetting to factory default status)

Setting range: K0 or K1
Initial value: K0
Numeric data type: Decimal (K)

Use this function to initialize all data in BFM #0 to #6999, to the factory default status.
Set value Description
K0 Normal
K1 Initializes all data
Set "K1" to initialize all data. When initialization is complete, "K0" will be set automatically.

1. Caution regarding initialization function setting

• It takes approximately 5 seconds to initialize all the data.
• Priority is given to BFM #19 which prevents a data from being changed. To initialize, set K2080 in BFM #19.

5.4.7 BFM #21: Input characteristics writing

Initial value: H0000

Numeric data type: Hexadecimal (H)

Channel numbers are assigned to the 4 lower bits of BFM #21. If any of these bits are turned on, the offset
data (BFM #41 to #44) and gain data (BFM #51 to #54) of the corresponding channel will be written to the
internal memory (EEPROM). When written to the internal memory, the data will become valid.

1. BFM #21 bits channel number assignment

Bit No. Description
b0 Channel-1 offset data (BFM #41) and gain data (BFM #51) writing
b1 Channel-2 offset data (BFM #42) and gain data (BFM #52) writing
b2 Channel-3 offset data (BFM #43) and gain data (BFM #53) writing
b3 Channel-4 offset data (BFM #44) and gain data (BFM #54) writing
b4 to b15 Not used.
The WRITE command can be given to two or more channels at the same time. (Set "H000F" to write all
channel data to the EEPROM.) When writing is complete, "H0000" (b0 to b3: OFF) will be set automatically.

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FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 5.4 Buffer Memory Details

A
5.4.8 BFM #22: Convenient function setting

Common Items
Initial value: H0000
Numeric data type: Hexadecimal (H)

Turn on each bit (b0 to b8) of BFM #22 to enable the function assigned to each bit (refer to the following
table). Turn off each bit to disable the function of each bit.
B

FX3UC-4AD
FX3U-4AD
1. Function assigned to each bit of BFM #22
Bit No. Function Description Reference
The channel data (BFM #10 to #13), peak data (BFM #101 to
#104, #111 to #114), and data history (BFM #200 to #6999) will
be subject to change (the addition data (BFM #61 to #64) will be C
Subsection
b0 Data addition function added to the measurement data).

FX3U-4AD-ADP
5.4.15
When setting the lower limit error data (BFM #71 to #74) or the
upper limit error data (BFM #81 to #84), add the addition data
(BFM #61 to #64) to the error data to be set.
If the A/D conversion data of a channel is outside the range set
b1
Upper/lower limit
detection function
by the lower limit error data (BFM #71 to #74) and the upper limit
error data (BFM #81 to #84), the result will be written to BFM
Subsection
5.4.16
D

FX3G-2AD-BD
#26 as the upper/lower limit error status data.
When channel data (BFM #10 to #13) is updated, if the
difference between the previous value and the new value is
Abrupt change Subsection
b2 larger than the set abrupt change detection value (value set in
detection function 5.4.17
BFM #91 to #94), the result will be written to BFM #27 as the
abrupt change detection status data. E

FX3U-4DA
The minimum value of channel data written to BFM #10 to #13
will be written to BFM #101 to #104 as the minimum peak value,
Peak value holding Subsection
b3 and the maximum value of channel data written to BFM #10 to
function 5.4.19
#13 will be written to BFM #111 to #114 as the maximum peak
value.
If the automatic transfer-to first data register is specified in BFM
Subsection
F
#125, the minimum peak value (BFM #101 to #104) and the

FX3U-4DA-ADP
Peak value automatic 5.4.19
b4 maximum peak value (BFM #111 to #114) will be automatically
transfer function Subsection
written to the specified data registers (8 points (registers)
5.4.21
starting from the first data register specified).
If the upper/lower limit error status data automatic transfer-to Subsection
Upper/lower limit error
b5 status data automatic
data register is specified in BFM #126, the upper/lower limit error
status data (BFM #26) will be automatically written to the
5.4.16
Subsection
G
transfer function

FX3G-1DA-BD
specified data register. 5.4.22
Abrupt change If the abrupt change detection status data automatic transfer-to Subsection
detection status data data register is specified in BFM #127, the abrupt change 5.4.17
b6
automatic transfer detection status data (BFM #27) will be automatically written to Subsection
function the specified data register. 5.4.23
Over-scale status If the over-scale status data automatic transfer-to data register is H
Subsection
b7 data automatic specified in BFM #128, the over-scale status data (BFM #28) will
FX3U-4AD-PT

5.4.24
transfer function be automatically written to the specified data register.
Error status data If the error status data automatic transfer to data register is
Subsection
-ADP

b8 automatic transfer specified in BFM #129, the error status data (BFM #29) will be
5.4.25
function automatically written to the specified data register.
b9 to b15 - Not used. - I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

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FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 5.4 Buffer Memory Details

2. Caution regarding convenient function setting

• Even if the data addition function is used, the value before adding the addition data (BFM #61 to #64) will
be checked to detect the over-scale error.
• To use the peak value automatic transfer function (b4 of BFM #22), be sure to enable the peak value
holding function (b3 of BFM #22).
• To use the upper/lower limit error status data automatic transfer function (b5 of BFM #22), be sure to
enable the upper/lower limit value detection function (b1 of BFM #22).
• To use the abrupt change detection status data automatic transfer function (b6 of BFM #22), be sure to
enable the abrupt change detection function (b2 of BFM #22).

3. Caution regarding EEPROM writing

If data is written to BFM #0, #19, #21, #22, #125 to #129, or #198, the data will also be written to the 4AD
EEPROM.
→ For a detailed description of caution regarding EEPROM writing, refer to Subsection 5.4.1.

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FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 5.4 Buffer Memory Details

A
5.4.9 BFM #26: Upper/lower limit error status

Common Items
Initial value: H0000
Numeric data type: Hexadecimal (H)
If channel data (BFM #10 to #13) is out of the range set by the lower limit error data (BFM #71 to #74) and the
upper limit error data (BFM #81 to #84), the following operation will be performed: B
• If "channel data < lower limit error set value":

FX3UC-4AD
FX3U-4AD
The lower limit error bit will turn on.
• If "channel data > upper limit error set value":
The upper limit error bit will turn on.
→ For a detailed description of upper/lower limit error status data resetting,
refer to Subsection 5.4.18. C

FX3U-4AD-ADP
1. BFM #26 bit assignment
The upper and lower limit error values of each channel are assigned as shown in the following table:

Bit No. Channel number Description

b0
ch1
Lower limit error value D
b1 Upper limit error value

FX3G-2AD-BD
b2 Lower limit error value
ch2
b3 Upper limit error value
b4 Lower limit error value
ch3
b5 Upper limit error value E
b6 Lower limit error value

FX3U-4DA
ch4
b7 Upper limit error value
b8 to b15 Not used.

2. Cautions regarding use of upper/lower limit error status data

F
• To use the upper/lower limit error status data, be sure to turn on the upper/lower limit detection function (b1

FX3U-4DA-ADP
of BFM #22).
• Perform one of the following operations to turn off the previously turned on bit:
- Turn the power off and on.
- Turn on b0 or b1 of BFM #99 to reset the upper/lower limit error status.
- Write "H0000" in BFM #26 as the upper/lower limit error status data. G

FX3G-1DA-BD
• Even if an error is detected, channel data (BFM #10 to #13) will be continuously updated.

3. Upper/lower limit error status data automatic transfer function (b5 of BFM #22)
If the upper/lower limit error status data automatic transfer-to data register is specified in BFM #126, the data
in BFM #26 can be transferred to the specified data register.
When the upper/lower error is detected, data will be automatically transferred from the 4AD to the PLC. For H
this reason, the PLC does not need the program for reading data, and the scanning time of the PLC can be
FX3U-4AD-PT

shortened.
: Represents a numeric value.
Convenient function
-ADP

Automatic data transfer function

setting

ON = Valid Transfer-from buffer memory

Transfer-to data register specification I
(BFM #126: K )
FX3U-4AD-PTW

BFM #22 b1:ON

BFM #26 → D
BFM #22 b5:ON
-ADP

J
FX3U-4AD-PNK
-ADP

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Buffer Memory (BFM)
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 5.4 Buffer Memory Details

5.4.10 BFM #27: Abrupt change detection status

Initial value: H0000
Numeric data type: Hexadecimal (H)
When channel data (BFM #10 to #13) is updated, if the difference between the previous value and the new
value is larger than the set abrupt change detection value (value set in BFM #91 to #94), the following
operation will be performed:
• If "(new value) - (previous value) > (abrupt change detection value)":
The "+" direction bit will turn on.
• If "(previous value) - (new value) > (abrupt change detection value)":
The "-" direction bit will turn on.
→ For a detailed description of abrupt change detection status data resetting,
refer to Subsection 5.4.18.

1. Assignment of each bit of BFM #27

For the abrupt change detection function of each channel, the "+" and "-" directions are assigned as shown in
the following table:

Bit No. Channel number Description

b0 "-" direction for abrupt change detection
ch1
b1 "+" direction for abrupt change detection
b2 "-" direction for abrupt change detection
ch2
b3 "+" direction for abrupt change detection
b4 "-" direction for abrupt change detection
ch3
b5 "+" direction for abrupt change detection
b6 "-" direction for abrupt change detection
ch4
b7 "+" direction for abrupt change detection
b8 to b15 Not used.

2. Caution regarding use of abrupt change detection status data

• To use the abrupt change status data, be sure to turn on the abrupt change detection function (b2 of BFM
#22).
• Perform one of the following operations to turn off the previously turned on bit:
- Turn the power off and on.
- Turn on b2 of BFM #99 to reset the abrupt change detection error status.
- Write "H0000" in BFM #27 as the abrupt change detection status data.
• Even if abrupt change is detected, channel data (BFM #10 to #13) will be continuously updated.
3. Abrupt change detection status data automatic transfer function (b6 of BFM #22)
If the abrupt change detection status data automatic transfer-to data register is specified in BFM #127, the
data in BFM #27 can be transferred to the specified data register.
When abrupt change is detected, data will be automatically transferred from the 4AD to the PLC. For this
reason, the PLC does not need any program for reading the data, and the scan time of the PLC can be
shortened.
: Represents a numeric value.
Convenient function
Automatic data transfer function
setting
Transfer-to data register specification
ON = Valid Transfer-from memory
(BFM #127: K )
BFM #22 b2:ON
BFM #27 → D
BFM #22 b6:ON

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FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 5.4 Buffer Memory Details

A
5.4.11 BFM #28: Over-scale status

Common Items
Initial value: H0000
Numeric data type: Hexadecimal (H)
If the input analog value is out of the A/D conversion range, the following operation will be performed:
• If "(analog input value) < (lower limit value in A/D conversion range)": B

FX3UC-4AD
FX3U-4AD
The over-scale lower limit bit will turn on.
• If "(analog input value) < (upper limit value in A/D conversion range)":
The over-scale upper limit bit will turn on.

1. A/D conversion range

C
Input type A/D conversion range

FX3U-4AD-ADP
Voltage input -10.2V to +10.2V
Current input -20.4mA to +20.4mA

2. Assignment of each bit of BFM #28

D

FX3G-2AD-BD
Bit No. Channel number Description
b0 Over-scale (lower limit)
ch1
b1 Over-scale (upper limit)
b2 Over-scale (lower limit)
ch2
b3 Over-scale (upper limit) E
b4 Over-scale (lower limit)

FX3U-4DA
ch3
b5 Over-scale (upper limit)
b6 Over-scale (lower limit)
ch4
b7 Over-scale (upper limit)
b8 to b15 Not used. F

FX3U-4DA-ADP
3. Caution regarding use of over-scale status data
• Perform one of the following operations to turn off the previously turned on bit:
- Turn the power off and on.
- Write "H0000" in BFM #28 as the over-scale status data.
• Even if over scale is detected, channel data (BFM #10 to #13) will continuously be updated.
G

FX3G-1DA-BD
4. Over-scale status data automatic transfer function (b7 of BFM #22)
If the over-scale status data automatic transfer-to data register is specified in BFM #128, the data in BFM #28
can be transferred to the specified data register.
When over-scale is detected, data will be automatically transferred from the 4AD to the PLC. For this reason,
the PLC does not need any program for reading the data, and the scan time of the PLC can be shortened. H
: Represents a numeric value.
FX3U-4AD-PT

Convenient function
Automatic data transfer function
setting
-ADP

Transfer-to data register specification

ON = Valid Transfer-from memory
(BFM #128: K )
BFM #22 b7:ON BFM #28 → D
I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

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FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 5.4 Buffer Memory Details

5.4.12 BFM #29: Error status

Initial value: H0000

Numeric data type: Hexadecimal (H)
Error data is assigned to the bits of BFM #29.

1. BFM #29 Bit Assignment

Bit No. Item Description
b0 Error detection If any bits between b2 and b4 are turned on, b0 will turn on.
b1 - -
The 24 V power is not supplied properly. Check the wiring condition
b2 Power supply error
or the voltage supplied.
FX3U-4AD/FX3UC-4AD may be defective. Please contact the nearest
b3 Hardware error
Mitsubishi Electric distributor office.
The A/D conversion value is abnormal.
b4 A/D conversion error Check the over-scale status data (BFM #28) to localize the error
channel.
b5 - -
BFM reading/writing If change in the input characteristics is started, this bit will turn on. If
b6
impossible this bit (b6) is on, A/D conversion data cannot be read out correctly.
b7 - -
b8 Data setting error detection If any bits between b10 and b15 are turned on, b8 will turn on.
b9 - -
The averaging time (BFM #2 to #5) is not set correctly.
b10 Averaging time setting error
Set the averaging time again in the range from 1 to 4095.
The digital filter value (BFM #6 to #9) is not set correctly.
b11 Digital filter setting error
Set the digital filter value again in the range from 0 to 1600.
The abrupt change detection value (BFM #91 to #94) is not set
Abrupt change detection
b12 correctly.
value setting error
Correctly set the value again.
The lower limit error detection value (BFM #71 to #74) or the upper
Upper/lower limit error
b13 limit error detection value (BFM #81 to #84) is not set correctly.
detection value setting error
Correctly set the value again.
b14 - -
The addition data (BFM #61 to #64) is not set correctly.
b15 Addition data setting error
Set the addition data again in the range from -16000 to +16000.

2. Caution regarding error status

If the error cause is eliminated, the error bit will turn off.
Do not directly write "H0000" in BFM #29 using a sequence program.

3. Error status data automatic transfer function (b8 of BFM #22)

If the error status data automatic transfer-to data register is specified in BFM #129, the data in BFM #29 can
be transferred to the specified data register.
When an error is detected, data will be automatically transferred from 4AD to the PLC. For this reason, the
PLC does not need any program for reading the data, and the scan time of the PLC can be shortened.
: Represents a numeric value.
Convenient function
Automatic data transfer function
setting
Transfer-to data register specification
ON = Valid Transfer-from memory
(BFM #129: K )
BFM #22 b8:ON BFM #29 → D

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FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 5.4 Buffer Memory Details

A
5.4.13 BFM #30: Model code

Common Items
Initial value: K2080
Numeric data type: Decimal (K)

"K2080" (fixed value) is stored as the model code.

B

FX3UC-4AD
FX3U-4AD
5.4.14 BFM #41 to #44: Offset data / BFM #51 to #54: Gain data

Setting range: See below.

Initial value: See below.
Numeric data type: Decimal (K)
C
If the input mode is specified in BFM #0, the offset data and the gain data of each channel will be

FX3U-4AD-ADP
automatically stored. The initial offset data and gain data are set for each mode as shown in the following
table:
• Offset data: Analog input value when the digital value is "0" (reference offset value)
• Gain data: Analog input value when the digital value is equal to the reference gain value (The
reference gain value depends on the set input mode.) D

FX3G-2AD-BD
1. Reference offset/gain value and initial value set at delivery
Offset Gain
Input mode (BFM #0) (Channels 1 to 4: BFM #41 to (Channels 1 to 4: BFM #51 to
#44) #54)
Set
Description
Reference
Initial value
Reference
Initial value
E
value value value

FX3U-4DA
Voltage input
0 0 0mV 16000 5000mV
(-10V to +10V:-32000 to +32000)
Voltage input
1 0 0mV 2000 5000mV
(-10V to +10V:-4000 to +4000)
Voltage input 0 0mV 5000 5000mV
F

FX3U-4DA-ADP
2 Analog value direct indication mode (Data change (Data change (Data change (Data change
(-10V to +10V:-10000 to +10000) impossible) impossible) impossible) impossible)
3 Current input (4mA to 20mA:0 to 16000) 0 4000µA 16000 20000µA
4 Current input (4mA to 20mA:0 to 4000) 0 4000µA 4000 20000µA

5
Current input
Analog value direct indication mode
4000
(Data change
4000µA
(Data change
20000
(Data change
20000µA
(Data change
G

FX3G-1DA-BD
(4mA to 20mA:4000 to 20000) impossible) impossible) impossible) impossible)
Current input
6 0 0µA 16000 20000µA
(-20mA to +20mA:-16000 to +16000)
Current input
7 0 0µA 4000 20000µA
(-20mA to +20mA:-4000 to +4000)
Current input 0 0µA 20000 20000µA
H
FX3U-4AD-PT

8 Analog value direct indication mode (Data change (Data change (Data change (Data change
(-20mA to +20mA:-20000 to +20000) impossible) impossible) impossible) impossible)
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

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FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 5.4 Buffer Memory Details

2. Offset/gain data change

Set offset data and gain data to change the input characteristics.
The offset and gain data can be set for each channel. If the voltage input mode is set, write the offset and gain
data in mV. If the current input mode is set, write the offset and gain data in µA.
To change the offset data or gain data, turn on the corresponding bit of BFM #21 (buffer memory for input
characteristics writing).
The data setting range is shown in the following table:

Voltage input (mV) Current input (µA)

Offset data -10000 to +9000*1 -20000 to +17000*2
Gain data -9000 to +10000*1 -17000 to +30000*2

*1. The offset and gain values should meet the following condition:
Gain value - Offset value ≥ 1000

*2. The offset and gain values should meet the following condition:
30000 ≥ Gain value - Offset value ≥ 3000

3. Cautions regarding offset/gain data change

• If the analog value direct indication mode is used, the input characteristics cannot be changed.
• Even if the input characteristics are changed, the actual valid input range will not be changed:
from -10V to +10V for the voltage input mode, and from -20mA to +20mA for the current input mode.
• Even if the input characteristics are changed, the resolution will not increase.
→ For a detailed description of input characteristics change, refer to Chapter 6.

5.4.15 BFM #61 to #64: Addition data

Setting range: -16000 to +16000

Initial value: K0
Numeric data type: Decimal (K)

If the addition data (BFM #61 to #64) is set, the set data will be added before storing the channel data (BFM
#10 to #13), peak data (BFM #101 to #104, BFM #111 to #114), or data history (BFM #200 to #6999).

1. Cautions regarding addition data setting

• To use the addition data, be sure to turn on the data addition function (b0 of BFM #22).
• When setting the lower limit error data (BFM #71 to #74) or the upper limit error data (BFM #81 to #84),
add the addition data (BFM #61 to #64) to the error data to be set.

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5.4.16 BFM #71 to #74: Lower limit error setting / BFM #81 to #84: Upper limit error setting

Common Items
Setting range: See below.
Initial value: See below.
Numeric data type: Decimal (K)

Set the upper/lower limit error data so that the upper/lower limit error status (BFM #26) can be detected.
B

FX3UC-4AD
FX3U-4AD
The data setting range depends on the input mode set in BFM #0.
The following table shows the data setting range for each input mode:

Input mode (BFM #0) Initial value

Setting range Lower limit value Upper limit value
Set
value
Description (Channels 1 to 4: (Channels 1 to 4: C
BFM #71 to #74) BFM #81 to #84)

FX3U-4AD-ADP
Voltage input
0 -32768 to +32767 -32768 32767
(-10V to +10V: -32000 to +32000)
Voltage input
1 -4095 to +4095 -4095 4095
(-10V to +10V: -4000 to +4000)
Voltage input D
2 Analog value direct indication mode -10200 to +10200 -10200 10200

FX3G-2AD-BD
(-10V to +10V:-10000 to +10000)
Current input
3 -1 to +16383 -1 16383
(4mA to 20mA:0 to 16000)
4 Current input (4mA to 20mA:0 to 4000) -1 to +4095 -1 4095
Current input E
5 Analog value direct indication mode 3999 to 20400 3999 20400

FX3U-4DA
(4mA to 20mA:4000 to 20000)
Current input
6 -16384 to +16383 -16384 16383
(-20mA to +20mA:-16000 to +16000)
Current input
7
(-20mA to +20mA:-4000 to +4000)
-4096 to +4095 -4096 4095
F

FX3U-4DA-ADP
Current input
8 Analog value direct indication mode -20400 to +20400 -20400 20400
(-20mA to +20mA:-20000 to +20000)

1. Cautions regarding upper/lower limit error setting

• To use the set upper/lower limit error data, be sure to turn on the upper/lower limit error detection function
(b1 of BFM #22).
G

FX3G-1DA-BD
• To use the data addition function (b0 of BFM #22) together with this function, be sure to add the addition
data (channels 1 to 4: BFM #61 to #64) to the upper/lower limit values to be set. In addition, observe the
data setting range.

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

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5.4.17 BFM #91 to #94: Abrupt change detection value setting

Setting range: See below.

Initial value: See below.
Numeric data type: Decimal (K)

When channel data (BFM #10 to #13) is updated, if the difference between the previous value and the new
value is larger than the set abrupt change detection value (value set in BFM #91 to #94), the system will judge
that the channel data is changed abruptly.
The result of abrupt change detection will be written to BFM #27 as the abrupt change detection status data.
The abrupt change detection value setting range depends on the set input mode (BFM #0) as shown in the
following table:
Input mode (BFM #0)
Set Setting range Initial value
Description
value
Voltage input
0 1 to 32767 3200
(-10V to +10V:-32000 to +32000)
Voltage input
1 1 to 4095 400
(-10V to +10V:-4000 to +4000)
Voltage input
2 Analog value direct indication mode 1 to 10000 1000
(-10V to +10V:-10000 to +10000)
3 Current input (4mA to 20mA:0 to 16000) 1 to 8191 800
4 Current input (4mA to 20mA:0 to 4000) 1 to 2047 200
Current input
5 Analog value direct indication mode 1 to 8191 800
(4mA to 20mA:4000 to 20000)
Current input
6 1 to 16383 1600
(-20mA to +20mA:-16000 to +16000)
Current input
7 1 to 4095 400
(-20mA to +20mA:-4000 to +4000)
Current input
8 Analog value direct indication mode 1 to 20000 2000
(-20mA to +20mA:-20000 to +20000)

1. Caution regarding abrupt change detection value setting

To use the abrupt change detection value, be sure to turn on the abrupt change detection function (b2 of BFM
#22).

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5.4.18 BFM #99: Clearance of upper/lower limit error data and abrupt change detection data

Common Items
Initial value: H0000
Numeric data type: Hexadecimal (H)
Three error data clearance commands (lower limit error data clearance command, upper limit error data
clearance command, and abrupt change detection data clearance command) are respectively assigned to the B
3 lower bits of BFM #99.

FX3UC-4AD
FX3U-4AD
Turning on each bit (batch turning on for all channels) will reset the corresponding error status flag (#26 or
#27 of BFM).

1. BFM #99 bits command assignment

Bit No. Description Buffer memory to be cleared C
b0 Lower limit error data clearance command

FX3U-4AD-ADP
BFM #26
b1 Upper limit error data clearance command
b2 Abrupt change detection data clearance command BFM #27
b3 to b15 Not used. -
Two or more data clearance commands can be turned on at the same time. D

FX3G-2AD-BD
2. Operation after resetting BFM #26, #27
Each bit will turn off automatically.

5.4.19 BFM #101 to #104: Minimum peak value / BFM #111 to #114: Maximum peak value E

FX3U-4DA
Numeric data type: Decimal (K)

The minimum channel data (channels 1 to 4) value written to BFM #10 to #13 will be written to BFM #101 to
#104 as the minimum peak value, and the maximum channel data value will be written to BFM #111 to #114
as the maximum peak value.
F
1. Caution regarding peak value

FX3U-4DA-ADP
To use the minimum peak value and the maximum peak value, be sure to turn on the peak value holding
function (b3 of BFM #22).
Note:

• If the data addition function (b0 of BFM #22) is used together with this function, the addition data will be
added to the measurement data.
G

FX3G-1DA-BD
• If the value holding function is not used, the peak value will be "K0".

2. Peak value automatic transfer function (b4 of BFM #22)

If the automatic transfer-to first data register is specified in BFM #125, the minimum peak value and the
maximum peak value will be automatically written to the specified data registers (8 points (registers) starting
from the first data register specified). H
FX3U-4AD-PT

When the peak value is updated, data will be automatically transferred from the 4AD to the PLC. For this
reason, the PLC does not need any program for reading the data, and the scan time of the PLC can be
shortened.
: Represents a numeric value.
-ADP

Convenient function
setting
Automatic data transfer function
I
Transfer-to data register specification
FX3U-4AD-PTW

(BFM #125: K )
ON = Valid Transfer-from buffer memory
(8 points (registers) starting from the
specified data register)
-ADP

BFM #22 b4:ON BFM #101 to 104 D to D +3

→
BFM #22 b3:ON BFM #111 to 114 D +4 to D +7 J
FX3U-4AD-PNK
-ADP

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5.4.20 BFM #109: Minimum peak value resetting / BFM #119: Maximum peak value
resetting

Initial value: H0000

Numeric data type: Hexadecimal (H)
BFM #109 can reset the minimum peak value (BFM #101 to #104), and BFM #119 can reset the maximum
peak value (BFM #111 to #114).
Channel numbers are assigned to the bits of BFM #109 and #119 to specify the channel to be subject to peak
value resetting.
Turn on each bit to reset the peak value of the corresponding channel.

1. BFM #109/#119 bits Channel number assignment

Description
Bit No.
BFM #109 BFM #119
b0 Channel-1 minimum peak value (BFM #101) resetting Channel-1 maximum peak value (BFM #111) resetting
b1 Channel-2 minimum peak value (BFM #102) resetting Channel-2 maximum peak value (BFM #112) resetting
b2 Channel-3 minimum peak value (BFM #103) resetting Channel-3 maximum peak value (BFM #113) resetting
b3 Channel-4 minimum peak value (BFM #104) resetting Channel-4 maximum peak value (BFM #114) resetting
b4 to b15 Not used.
Two or more bits can be turned on at a time.

5.4.21 BFM #125: Peak value automatic transfer to first data register specification

Setting range: 0 to 7992

Initial value (at delivery) : K200
Numeric data type: Decimal (K)

If the automatic transfer to first data register is specified in BFM #125, the minimum peak value (BFM #101 to
#104) and the maximum peak value (BFM #111 to #114) will be automatically transferred to the specified
data registers (8 points (registers) starting from the first data register specified).
When the peak value is updated, data will be automatically transferred from the 4AD to the PLC. For this
reason, the PLC does not need any program for reading the data, and the scan time of the PLC can be
shortened.
→ For a detailed description of the minimum peak value (BFM #101 to #104) and the maximum peak
value (BFM #111 to #114), refer to Subsection 5.4.19.

1. If "BFM #125 = K200 (initial value)"

Data will be transferred to D200 to D207 (8 points).
Specified data register Description
D200 Channel-1 minimum peak value (BFM #101)
D201 Channel-2 minimum peak value (BFM #102)
D202 Channel-3 minimum peak value (BFM #103)
D203 Channel-4 minimum peak value (BFM #104)
D204 Channel-1 maximum peak value (BFM #111)
D205 Channel-2 maximum peak value (BFM #112)
D206 Channel-3 maximum peak value (BFM #113)
D207 Channel-4 maximum peak value (BFM #114)

2. Caution regarding peak value automatic transfer-to first data register specification
• If data registers are already specified for the other automatic transfer functions, do not specify the same
data registers.
• Be sure to turn on the peak value automatic transfer function (b4 of BFM #22) and the peak value holding
function (b3 of BFM #22).
• The data written to BFM #125 will be retained in the EEPROM.

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A
3. Caution regarding EEPROM writing

Common Items
If data is written to BFM #0, #19, #21, #22, #125 to #129, or #198, the data will also be written to the 4AD
EEPROM.
→ For a detailed description of caution regarding EEPROM writing, refer to Subsection 5.4.1.

5.4.22 BFM #126: Upper/lower error status data automatic transfer-to data register B
specification

FX3UC-4AD
FX3U-4AD
Setting range: 0 to 7999
Initial value (at delivery) : K208
Numeric data type: Decimal (K)

Use this function to automatically transfer the upper/lower limit error status data (BFM #26) to the data
C

FX3U-4AD-ADP
register specified in BFM #126.
When the upper/lower limit error is detected, data will be automatically transferred from the 4AD to the PLC.
For this reason, the PLC does not need any program for reading the data, and the scanning time of the PLC
can be shortened.
→ For a detailed description of the upper/lower limit error status data (BFM #26),
refer to Subsection 5.4.9. D

FX3G-2AD-BD
1. If "BFM #126 = K208 (initial value)"
Specified data register Description
D208 Upper/lower limit error status data in BFM #26

2. Cautions regarding upper/lower limit error status data automatic transfer-to data register E
specification

FX3U-4DA
• If a data register is already specified for the other automatic transfer functions, do not specify the same
data register.
• Be sure to turn on the upper/lower limit error status data automatic transfer function (b5 of BFM #22) and
the upper/lower limit detection function (b1 of BFM #22).
F
• The data written to BFM #126 will be retained in the EEPROM.

FX3U-4DA-ADP
3. Caution regarding EEPROM writing
If data is written to BFM #0, #19, #21, #22, #125 to #129, or #198, the data will also be written to the 4AD
EEPROM.
→ For a detailed description of caution regarding EEPROM writing, refer to Subsection 5.4.1.
G

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

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5.4.23 BFM #127: Abrupt change detection status data automatic transfer-to data register
specification

Setting range: 0 to 7999

Initial value (at delivery) : K209
Numeric data type: Decimal (K)

Use this function to automatically transfer the abrupt change detection status data (BFM #27) to the data
register specified in BFM #127.
When abrupt change is detected, data will be automatically transferred from the 4AD to the PLC. For this
reason, the PLC does not need any program for reading the data, and the scan time of the PLC can be
shortened.
→ For a detailed description of the abrupt change detection status data (BFM #27),
refer to Subsection 5.4.10.

1. If "BFM #127 = K209 (initial value)"

Specified data register Description
D209 Abrupt change detection status data in BFM #27

2. Caution regarding abrupt change detection status data automatic transfer to data register
specification
• If a data register is already specified for the other automatic transfer functions, do not specify the same
data register.
• Be sure to turn on the abrupt change detection status data automatic transfer function (b6 of BFM #22) and
the abrupt change detection function (b2 of BFM #22).
• The data written to BFM #127 will be retained in the EEPROM.

3. Caution regarding EEPROM writing

If data is written to BFM #0, #19, #21, #22, #125 to #129, or #198, the data will also be written to the 4AD
EEPROM.
→ For a detailed description of caution regarding EEPROM writing, refer to Subsection 5.4.1.

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5.4.24 BFM #128: Over-scale status data automatic transfer-to data register specification

Common Items
Setting range: 0 to 7999
Initial value (at delivery) : K210
Numeric data type: Decimal (K)

Use this function to automatically transfer the over-scale status data (BFM #28) to the data register specified
B

FX3UC-4AD
FX3U-4AD
in BFM #128.
When over-scale is detected, data will be automatically transferred from the 4AD to the PLC. For this reason,
the PLC does not need any program for reading the data, and the scan time of the PLC can be shortened.
→ For a detailed description of the over-scale status data (BFM #28), refer to Subsection 5.4.11.

1. If "BFM #128 = K210 (initial value)" C

FX3U-4AD-ADP
Specified data register Description
D210 Over-scale status data in BFM #28

2. Cautions regarding over-scale status data automatic transfer-to data register specification
• If a data register is already specified for the other automatic transfer functions, do not specify the same
data register.
D

FX3G-2AD-BD
• Be sure to turn on the over-scale status data automatic transfer function (b7 of BFM #22).
• The data written to BFM #128 will be retained in the EEPROM.

3. Caution regarding EEPROM writing

If data is written to BFM #0, #19, #21, #22, #125 to #129, or #198, the data will also be written to the 4AD
EEPROM.
E

FX3U-4DA
→ For a detailed description of caution regarding EEPROM writing, refer to Subsection 5.4.1.

5.4.25 BFM #129: Error status data automatic transfer-to data register specification

Setting range: 0 to 7999

Initial value (at delivery) : K211
F

FX3U-4DA-ADP
Numeric data type: Decimal (K)

Use this function to automatically transfer the error status data (BFM #29) to the data register specified in
BFM #129.
When an error is detected, data will be automatically transferred from the 4AD to the PLC. For this reason,
the PLC does not need any program for reading the data, and the scan time of the PLC can be shortened. G
→ For a detailed description of the error status data (BFM #29), refer to Subsection 5.4.12.

FX3G-1DA-BD
1. If "BFM #129 = K211 (initial value)"
Specified data register Description
D211 Error status data in BFM #29
H
2. Cautions regarding error status data automatic transfer-to data register specification
FX3U-4AD-PT

• If a data register is already specified for the other automatic transfer functions, do not specify the same
data register.
-ADP

• Be sure to turn on the error status data automatic transfer function (b8 of BFM #22).
• The data written to BFM #129 will be retained in the EEPROM.
I
3. Caution regarding EEPROM writing
FX3U-4AD-PTW

If data is written to BFM #0, #19, #21, #22, #125 to #129, or #198, the data will also be written to the 4AD
EEPROM.
-ADP

→ For a detailed description of caution regarding EEPROM writing, refer to Subsection 5.4.1.

J
FX3U-4AD-PNK
-ADP

B-47
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Buffer Memory (BFM)
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 5.4 Buffer Memory Details

5.4.26 BFM #197: Selection of cyclic data update function (function for data history)

Initial value: H0000

Numeric data type: Hexadecimal (H)
Use this function to update the data history in BFM #200 to #6999.
Channel numbers are respectively assigned to the 4 lower bits of BFM #197. Turn each bit on or off to select
the data history update function.
ON: If a bit is turned on, the corresponding data will be stored in the buffer memories in the order of the
smallest BFM number to the largest BFM number, but when 1,700 points of data are stored, data will be
then overwritten in the buffer memories starting from the smallest BFM numbers.
OFF: If a bit is turned off, the corresponding data will be stored in the buffer memories in the order of the
smallest BFM number to the largest BFM number, but when 1,700 points of data are stored, data
storage will stop.

1. Channel number assignment to each bit of BFM #197

Bit No. Description History data stored in
b0 Selection of channel-1 data update function BFM #200 to #1899, 1,700 points
b1 Selection of channel-2 data update function BFM #1900 to #3599, 1,700 points
b2 Selection of channel-3 data update function BFM #3600 to #5299, 1,700 points
b3 Selection of channel-4 data update function BFM #5300 to #6999, 1,700 points
b4 to b15 Not used. -

5.4.27 BFM #198: Data history sampling time setting

Setting range: 0 to 30000

Initial value (at delivery) : K15000
Numeric data type: Decimal (K)

Use this function to set the data history sampling time.

If one of the channels uses the digital filter function, set a multiple of 5.

1. Sampling cycle
As shown in the following table, the sampling cycle depends on whether the digital filter function is used.

Value set in
Whether digital filter function is used Sampling cycle
BFM #198
0.5 ms × number of selected channels (number of
0
channels using the digital filter function)
None of the channels use the digital filter
function. Set value (ms) in BFM #198 × number of selected
1 or more channels (number of channels using the digital filter
function)
5 ms × number of selected channels (number of
9 or less
channels using the digital filter function)
One or more channels use the digital filter
function. Set value (ms)*1 in BFM #198 × number of selected
10 or more channels (number of channels using the digital filter
function)

*1. Only multiples of 5 are valid.

(If any value from 10 to 14 is set, the sampling cycle will be 10 ms. If any value from 15 to 19 is set, the
sampling cycle will be 15 ms.)

2. Caution regarding use of data history function

If the averaging time is set, the data history function cannot be used.

3. Caution regarding EEPROM writing

If data is written to BFM #0, #19, #21, #22, #125 to #129, or #198, the data will also be written to the 4AD
EEPROM.
→ For a detailed description of cautions regarding EEPROM writing, refer to Subsection 5.4.1.

B-48
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Buffer Memory (BFM)
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 5.4 Buffer Memory Details

A
5.4.28 BFM #199: Data history resetting/stoppage

Common Items
Initial value: H0000
Numeric data type: Hexadecimal (H)
The data history resetting function and the data history stoppage function are assigned to the bits of BFM #199.
B
1. Data history resetting function (b0 to b3)

FX3UC-4AD
FX3U-4AD
The sampled history data can be reset for each channel.
Turn on a bit to reset all the history data (1st to 1,700th) of the corresponding channel. (Note that two or more
bits can be turned on at a time.)
When the data reset is complete, the corresponding bit will turn off automatically.

2. Data history stoppage function (b8 to b11) C

FX3U-4AD-ADP
Data sampling can be temporarily stopped for each channel.
Turn on a bit to temporarily stop sampling history data for the corresponding channel. (Note that two or more
bits can be turned on at a time.)
Turn off the bit to restart sampling of history data.

3. Function assignment to each bit of BFM #199 D

Bit No. Channel number Description

FX3G-2AD-BD
b0 ch1
b1 ch2
Data history resetting function
b2 ch3
b3 ch4
E
b4 to b7 Not used.

FX3U-4DA
b8 ch1
b9 ch2
Data history stoppage function
b10 ch3
b11 ch4
b12 to b15 Not used. F

FX3U-4DA-ADP
4. Caution regarding data history resetting
• When a bit is turned on, the corresponding data history will be reset.

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

B-49
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Buffer Memory (BFM)
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 5.4 Buffer Memory Details

5.4.29 BFM #200 to #6999: Data history

Initial value: K0
Numeric data type: Decimal (K)
Use this function to sample the A/D conversion data of each channel and to write the sampled data to the
buffer memories.
The 4AD can sample up to 1,700 points of A/D conversion data of each channel at the sampling cycle
specified in BFM #198, and can store the sampled data as history data in the buffer memories as shown in
the following table. Buffer memories are assigned to the 4 channels as shown in the following table, and data
is stored in the buffer memories in the order of the smallest BFM number to the largest BFM number.
Use BFM #199 to stop or reset the data history.
Number of data BFM number
samples ch1 ch2 ch3 ch4
1st #200 #1900 #3600 #5300
2nd #201 #1901 #3601 #4301
3rd #202 #1902 #3602 #4302
…

…
1,700th #1899 #3599 #5299 #6999

1. Caution regarding data history reading

If a large amount of history data is collectively read out to the PLC main unit using the FROM instruction, the
watchdog timer error may occur in the PLC main unit. Therefore, when programming, separate the history
data and then read it out using the FROM instruction. Set WDT (watchdog timer refresh) instruction between
the separated data.

B-50
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 6 Changing Input Characteristics
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 6.1 Procedure for Changing Input Characteristics

Common Items
6. Changing Input Characteristics
For the 4AD, the standard input characteristics are provided for each input mode (BFM #0) at the time of B
factory shipment.

FX3UC-4AD
FX3U-4AD
Changing the offset data (BFM #41 to #44) or gain data (BFM #51 to #54), however, can change the input
characteristics of each channel. This chapter describes how to change the input characteristics.

6.1 Procedure for Changing Input Characteristics

C

FX3U-4AD-ADP
1 Determine the input mode (BFM #0)
Determine the optimum input mode (BFM #0) for the selected channels and the voltage/current
specifications.
D
Set value

FX3G-2AD-BD
Input mode Analog input range Digital output range
(HEX)
0 Voltage input mode -10V to +10V -32000 to +32000
1 Voltage input mode -10V to +10V -4000 to +4000

2
Voltage input analog value direct indication
mode
The offset and the gain cannot be adjusted. E

FX3U-4DA
3 Current input mode 4mA to 20mA 0 to 16000
4 Current input mode 4mA to 20mA 0 to 4000
Current input analog value direct indication
5 The offset and the gain cannot be adjusted.
mode
6 Current input mode -20mA to +20mA -16000 to +16000 F

FX3U-4DA-ADP
7 Current input mode -20mA to +20mA -4000 to +4000
Current input analog value direct indication
8 The offset and the gain cannot be adjusted.
mode
9 to E Not used. - -
F Channel not used - - G
Example: Enter "HFF00" in BFM #0 to set input mode 0 for channels 1 and 2 and prevent use channels 3 and

FX3G-1DA-BD
4.

Caution regarding data setting:

• If a channel is set to the value "2", "5", "8" or "F", the input characteristics of the channel cannot be
changed. H
• Set the optimum input mode for the analog signal to be input.
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

B-51
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 6 Changing Input Characteristics
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 6.1 Procedure for Changing Input Characteristics

2 Determine the input characteristics to be changed.

Determine the digital value to be output according to the input voltage/current.
Example: To output digital values in the range from 0 to 32000 by inputting the voltage in the range
from 1V DC to 5V DC:

Input mode 0 Input characteristics provided at the time Input characteristics newly provided
of factory shipment
Digital value Digital value
+32640 +32000
+32000

Gain reference value

Gain reference value (+16000)
(+16000)

Input voltage -10V 0 +10.2 V Offset reference value (0)

+5V +10V
-10.2 V

Input voltage +1V +3V +5V

-32000
-32640

3 Determine the offset data.

Determine the analog input value (offset data) for digital output value of "0".
Set the analog input value in mV for the voltage input mode, and set the analog input value in µA
for the current input mode.
Example: To set the offset value of 1 V, set 1,000 mV.
→ For a detailed description of offset data, refer to Subsection 5.4.14.

4 Determine the gain data.

Determine the analog input value so that the digital output value is equal to the gain reference
value of each input mode.
The following table shows the gain reference value of each input mode:

Numeric
Input mode Analog input range Gain standard value Initial value
value
0 Voltage input mode -10V to +10V 16000 5000mV
1 Voltage input mode -10V to +10V 2000 5000mV
3 Current input mode 4mA to 20mA 16000 20000µA
4 Current input mode 4mA to 20mA 4000 20000µA
6 Current input mode -20mA to +20mA 16000 20000µA
7 Current input mode -20mA to +20mA 4000 20000µA

Set the analog input value in mV for the voltage input mode, and set the analog input value in µA
for the current input mode.
Example: To set the gain value of 3 V, set 3000 mV.
→ For a detailed description of gain data, refer to Subsection 5.4.14.

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 6 Changing Input Characteristics
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 6.1 Procedure for Changing Input Characteristics

A
5

Common Items
Create a sequence program.
To change the input characteristics, write the offset data (BFM #41 to #44) and the gain data (BFM
#51 to #54) in the sequence program, and then turn on the corresponding bit of BFM #21 for the
corresponding channel. The following example shows a program for the unit number 0.
B
Example: Program for changing the input characteristics of channels 1 and 2 (For FX3U, FX3UC Series

FX3UC-4AD
FX3U-4AD
PLCs):

Command for writing input characteristics

X000
Input mode specification
FNC 12
MOV P
HFF00 U0\G0 for channels 1 to 4 C

FX3U-4AD-ADP
M0
SET M0

T0 K50 *1

T0
FNC 16 K1000 U0\G41 K2
Offset value of D
FMOV P channels 1 and 2

FX3G-2AD-BD
FNC 16 Gain value of
K3000 U0\G51 K2 channels 1 and 2
FMOV P

FNC 12 Batch writing of offset and gain

H0003 U0\G21 values of channels 1 and 2
MOV P
E

FX3U-4DA
RST M0

*1. It takes approximately 5 seconds to change the input mode (BFM #0). This is because all the set
values should be changed.
After changing the input mode, be sure to wait for 5 seconds or more before setting other data. F

FX3U-4DA-ADP
The input characteristics of each channel can be written in BFM #21. It is also possible to perform
batch writing of input characteristics for two or more channels.

6 Transfer the sequence program to change the input characteristics.

Transfer the sequence program, and start the PLC.
G

FX3G-1DA-BD
Start the PLC, and turn on the command (X000) to write the input characteristics. In approx. 5 sec-
onds, the offset data and the gain data will be written.
Since the offset data and the gain data are stored in the 4AD EEPROM, it is possible to delete the
sequence program. H
7
FX3U-4AD-PT

Read out the analog data to check the data.

Create the following program to check the stored data (For FX3U, FX3UC Series PLCs):
-ADP

RUN monitor
M8000 The digital values set for I
FNC 16 channels 1 to 4 will be read
FX3U-4AD-PTW

U1\G10 D0 K4 out to D0 to D3.

BMOV

→ If data is not stored properly, refer to Chapter 8 "Troubleshooting".

-ADP

J
FX3U-4AD-PNK
-ADP

B-53
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 7 Examples of Practical Programs
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 7.1 Program That Uses Averaging Time

7. Examples of Practical Programs

Use the functions incorporated in the 4AD to create practical programs. This chapter describes the examples
of practical programs.
• Program that uses the averaging time
• Program that uses convenient functions
• Program that uses the data history function
• Program that initializes 4AD (to the factory default status)

7.1 Program That Uses Averaging Time

This section describes a program that uses the analog data averaging time input to the 4AD or the digital filter
function of the 4AD.

1. Conditions
The sequence program described in this section is created under the following conditions.
1) System configuration
The FX3U-4AD (unit No.0) should be connected to the FX3U Series PLC.
2) Input mode
Channels 1 and 2 should be set to mode 0 (voltage input, -10V to +10V → -32000 to +32000).
Channels 3 and 4 should be set to mode 3 (current input, 4mA to 20mA → 0 to 16000).
3) Averaging time
For channels 1 to 4, the averaging time should be set to "10".
4) Digital filter function
For channels 1 to 4, the digital filter function should be disabled (default).
5) Device assignment
Device Description
D0 A/D converted digital value for channel 1
D1 A/D converted digital value for channel 2
D2 A/D converted digital value for channel 3
D3 A/D converted digital value for channel 4

2. Example of sequence program

• For FX3U, FX3UC Series PLCs
Initial pulse
M8002
FNC 12 Input modes of channels 1
H3300 U0\G0 to 4 will be specified.*1
RUN monitor MOV P
M8000
T0 K50 *1

T0
FNC 16 For channels 1 and 2, the averaging time
K10 U0\G2 K4 will be set to "10".
FMOV P

FNC 16 The digital filter function of channels 1

K0 U0\G6 K4 and 2 will be disabled. *2
FMOV P

FNC 15 The digital values set for channels

U0\G10 D0 K4 1 to 4 will be read out to D0 to D3.
BMOV

*1. After setting the input mode, set the data writing time (waiting time) to 5 seconds or more for each
setting.
The specified input mode will be retained even if power failure occurs. After specifying the input mode,
if the same input mode is used, it is not necessary to set the input mode and waiting time (T0 K50).
*2. To use the default value set for the digital filter function, it is not necessary to set the digital filter
function in the sequence program.

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 7 Examples of Practical Programs
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 7.1 Program That Uses Averaging Time

A
• For FX3G, FX3U, FX3UC Series PLCs

Common Items
Initial pulse
M8002
FNC 79 Input modes of channels 1
K0 K0 H3300 K1 to 4 will be specified.*1
RUN monitor TO P
M8000
T0 K50 *1
B

FX3UC-4AD
FX3U-4AD
T0
FNC 79 For channels 1 and 2, the averaging time
K0 K2 K10 K4 will be set to "10".
TO P

FNC 79 The digital filter function of channels 1

K0 K6 K0 K4 and 2 will be disabled.*2
TO P

FNC 78 K0 K10 D0 K4
The digital values set for channels C
1 to 4 will be read out to D0 to D3.

FX3U-4AD-ADP
FROM

*1. After setting the input mode, set the data writing time (waiting time) to 5 seconds or more for each
setting.
The specified input mode will be retained even if power failure occurs. After specifying the input mode,
if the same input mode is used, it is not necessary to set the input mode and waiting time (T0 K50). D
*2. To use the default value set for the digital filter function, it is not necessary to set the digital filter

FX3G-2AD-BD
function in the sequence program.

FX3U-4DA
F

FX3U-4DA-ADP
G

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

B-55
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 7 Examples of Practical Programs
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 7.2 Program That Uses Convenient Functions

7.2 Program That Uses Convenient Functions

This section describes a program that uses the 4AD convenient functions (BFM #22).

1. Conditions
The sequence program described in this section is created under the following conditions.
1) System configuration
The FX3U-4AD (unit No.0) should be connected to the FX3U Series PLC.
2) Input mode
Channels 1 and 2 should be set to mode 0 (voltage input, -10V to +10V → -32000 to +32000).
Channels 3 and 4 should be set to mode 3 (current input, 4mA to 20mA → 0 to 16000).
3) Averaging time
For all the channels, the averaging time should be set to "1" (default).
(To use the default value, it is not necessary to set the averaging time in the sequence program.)
4) Digital filter function
For all channels, the digital filter function should be disabled (default).
(To use the default value, it is not necessary to set the digital filter function in the sequence program.)
5) Convenient functions
The upper/lower limit detection function, upper/lower limit error status data automatic transfer function,
over-scale status data automatic transfer function, and error status data automatic transfer function
should be used.
6) Device assignment
Device Description
X000 Clearance of upper/lower limit error data
Input
X001 Clearance of over-scale data
Y000 Output of channel-1 lower limit error data
Y001 Output of channel-1 upper limit error data
Y002 Output of channel-2 lower limit error data
Y003 Output of channel-2 upper limit error data
Y004 Output of channel-3 lower limit error data
Y005 Output of channel-3 upper limit error data
Y006 Output of channel-4 lower limit error data
Y007 Output of channel-4 upper limit error data
Y010 Output of channel-1 over-scale (lower limit) data
Y011 Output of channel-1 over-scale (upper limit) data
Y012 Output of channel-2 over-scale (lower limit) data
Y013 Output of channel-2 over-scale (upper limit) data
Output Y014 Output of channel-3 over-scale (lower limit) data
Y015 Output of channel-3 over-scale (upper limit) data
Y016 Output of channel-4 over-scale (lower limit) data
Y017 Output of channel-4 over-scale (upper limit) data
Y20 Output of error detection signal
Y21 Output of setting error detection signal
D0 A/D converted digital value of channel 1
D1 A/D converted digital value of channel 2
D2 A/D converted digital value of channel 3
D3 A/D converted digital value of channel 4
D100 Upper/lower limit error status data automatic transfer-to data register
D101 Over-scale status data automatic transfer-to data register
D102 Error status data automatic transfer-to data register

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 7 Examples of Practical Programs
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 7.2 Program That Uses Convenient Functions

A
2. Example of sequence program

Common Items
• For FX3U, FX3UC Series PLCs

Initial pulse
M8002
FNC 12 Input modes of channels 1 to 4 will be
RUN monitor MOV P
H3300 U0\G0 specified. *2 B
M8000

FX3UC-4AD
FX3U-4AD
T0 K50 *1

T0
FNC 12 H01A2 U0\G22 The convenient functions will be set. *2
MOV P

FNC 12 K100 U0\G126

The upper/lower limit error status data automatic C
MOV P transfer-to data register will be set to D100. *2

FX3U-4AD-ADP
FNC 12 The over-scale status data automatic transfer-to data
K101 U0\G128 register will be set to D101. *2
MOV P

FNC 12 The error status data automatic transfer-to data register

K102 U0\G129 will be set to D102. *2
MOV P
D
FNC 15 Reads the digital values of channels 1 to 4 from BFM#10

FX3G-2AD-BD
U0\G10 D0 K4
BMOV to #13 into D0 to D3.
Clearance of upper/lower
limit error data
X000
FNC 12 H0003 U0\G99 Clearance of upper/lower limit error data
MOV P
Clearance of over-scale
data
E

FX3U-4DA
X001
FNC 12 K0 U0\G28 Clearance of over-scale data
MOV P

RUN monitor
M8000
FNC 12
MOV
D100 K2Y000
The upper/lower limit error status data of each channel
will be output to Y000 to Y007. F

FX3U-4DA-ADP
FNC 12 The over-scale status data of each channel will be output
D101 K2Y010 to Y010 to Y017.
MOV
Error detection
D102.0
Y020 The error detection signal will be output to Y020.
G
Setting error detection

FX3G-1DA-BD
D102.8
Y021 The setting error detection signal will be output to Y021.

*1. After setting the input mode, set the data writing time (waiting time) to 5 seconds or more for each
setting.
H
FX3U-4AD-PT

After this, if the same input mode is used, it is not necessary to set the input mode and waiting time
(T0 K50) again.
*2. The set input mode, convenient functions, upper/lower limit error status data automatic transfer-to
-ADP

data register number, over-scale status data automatic transfer-to data register number, and error
status data automatic transfer-to data register number are retained in the 4AD EEPROM. For this
reason, even if the sequence program is deleted, the previously set functions will still be valid.
I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

B-57
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 7 Examples of Practical Programs
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 7.2 Program That Uses Convenient Functions

• For FX3G, FX3U, FX3UC Series PLCs

Initial pulse
M8002
FNC 79 Input modes of channels 1 to 4 will be
K0 K0 H3300 K1 specified. *2
RUN monitor TO P
M8000
T0 K50 *1

T0
FNC 79 K0 K22 H01A2 K1 The convenient functions will be set. *2
TO P

FNC 79 The upper/lower limit error status data automatic

K0 K126 K100 K1 transfer-to data register will be set to D100. *2
TO P

FNC 79 The over-scale status data automatic transfer-to data

K0 K128 K101 K1 register will be set to D101. *2
TO P

FNC 79 The error status data automatic transfer-to data register

K0 K129 K102 K1 will be set to D102. *2
TO P

FNC 78 K0 K10 D0 K4 Reads the digital values of channels 1 to 4 from

FROM P BFM#10 to #13 into D0 to D3.
Clearance of upper/
lower limit error data
X000
FNC 79 K0 K99 H0003 K1 Clearance of upper/lower limit error data
TO P
Clearance of over-scale
data
X001
FNC 79 K0 K28 K0 K1 Clearance of over-scale data
TO

RUN monitor
M8000
FNC 12 The upper/lower limit error status data of each channel
D100 K2Y000 will be output to Y000 to Y007.
MOV

FNC 12 The over-scale status data of each channel will be

D101 K2Y010 output to Y010 to Y017.
MOV

FNC 12 D102 K4M0

MOV
Error detection
M0
Y020 The error detection signal will be output to Y020.
Setting error detection
M8
Y021 The setting error detection signal will be output to Y021.

*1. After setting the input mode, set the data writing time (waiting time) to 5 seconds or more for each
setting.
After this, if the same input mode is used, it is not necessary to set the input mode and waiting time
(T0 K50) again.
*2. The set input mode, convenient functions, upper/lower limit error status data automatic transfer-to
data register number, over-scale status data automatic transfer-to data register number, and error
status data automatic transfer-to data register number are retained in the 4AD EEPROM. For this
reason, even if the sequence program is deleted, the previously set functions will still be valid.

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 7 Examples of Practical Programs
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 7.3 Program That Uses Data History Function

A
7.3 Program That Uses Data History Function

Common Items
This section describes a program that uses the data history function of the 4AD.

1. Conditions
The sequence program described in this section is created under the following functions. B
1) System configuration

FX3UC-4AD
FX3U-4AD
The FX3U-4AD (unit No.0) should be connected to the FX3U Series PLC.
2) Input mode
Channels 1 and 2 should be set to mode 0 (voltage input, -10V to +10V → -32000 to +32000).
Channels 3 and 4 should be set to mode 3 (current input, 4mA to 20mA → 0 to 16000).
3) Averaging time C

FX3U-4AD-ADP
For all the channels, the averaging time should be set to "1" (default).
(To use the default value, it is not necessary to set the averaging time in the sequence program.)
4) Digital filter function
For all channels, the digital filter function should be disabled (default).
(To use the default value, it is not necessary to set the digital filter function in the sequence program.)
5) Data history function
D

FX3G-2AD-BD
For all channels, the data sampling time should be set to 100 ms.
The sampling cycle should be 100 ms × 4 (number of selected channels) = 400 ms.
For all channels, data will be sampled 100 times, and the sampled data will be stored as data history in
the data registers.
6) Device assignment
Device Description
E

FX3U-4DA
X000 Clearance of data history
Input
X001 Temporarily stoppage of data history
D0 A/D converted digital value of channel 1
D1 A/D converted digital value of channel 2
D2 A/D converted digital value of channel 3 F

FX3U-4DA-ADP
D3 A/D converted digital value of channel 4
Data register
D100 to D199 Channel-1 data history(100 data samples)
D200 to D299 Channel-2 data history(100 data samples)
D300 to D399 Channel-3 data history(100 data samples)
D400 to D499 Channel-4 data history(100 data samples) G

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

B-59
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 7 Examples of Practical Programs
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 7.3 Program That Uses Data History Function

2. Example of sequence program

• For FX3U, FX3UC Series PLCs

Initial pulse
M8002
FNC 12 Input modes of channels 1 to 4 will be
H3300 U0\G0 specified. *2
RUN monitor MOV P
M8000
T0 K50 *1

T0
FNC 12 K100 U0\G198 The sampling time will be set to 100 ms.
*2
MOV P

FNC 15 The digital values set for channels 1

U0\G10 D0 K4 to 4 will be read out to D0 to D3.
Clear data BMOV
history
X000
FNC 12 Data history of all the channels will be
H000F U0\G199 erased.
MOV P
Temporarily stop
data history
X001
FNC 12 Data history of all the channels will be
H0F00 U0\G199 temporarily stopped.
MOV P
Temporarily stop
data history
X001
FNC 12 Temporary stoppage of data history will be
H0000 U0\G199 canceled for all the channels.
MOV P

T0
FNC 15 Channel-1 history data (100 data samples)
U0\G200 D100 K100 will be read out to D100 to D199.
BMOV

FNC 07 The watchdog timer will be refreshed. *3

WDT

FNC 15 Channel-2 history data (100 data samples)

U0\G1900 D200 K100 will be read out to D200 to D299.
BMOV

FNC 07 The watchdog timer will be refreshed. *3

WDT

FNC 15 Channel-3 history data (100 data samples)

U0\G3600 D300 K100 will be read out to D300 to D399.
BMOV

FNC 07 The watchdog timer will be refreshed. *3

WDT

FNC 15 Channel-4 history data (100 data samples)

U0\G4300 D400 K100 will be read out to D400 to D499.
BMOV

FNC 07 The watchdog timer will be refreshed. *3

WDT

*1. After setting the input mode, set the data writing time (waiting time) to 5 seconds or more for each
setting.
After this, if the same input mode is used, it is not necessary to set the input mode and waiting time
(T0 K50) again.
*2. The set input mode and the sampling time are retained in the 4AD EEPROM. Therefore, even if the
sequence program is deleted, the previously set functions will still be valid.
*3. If a large amount of history data is read out, the scan time of the PLC will be become longer. If the
scan time exceeds 200 ms, the CPU error indicator lamp will illuminate, and the PLC will stop.
Insert WDT instruction (watchdog timer refresh) between BMOV instructions.

B-60
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 7 Examples of Practical Programs
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 7.3 Program That Uses Data History Function

A
• For FX3G, FX3U, FX3UC Series PLCs

Common Items
Initial pulse
M8002
FNC 79 K0 K0 H3300 K1 Input modes of channels 1 to 4 will be
TO P specified. *2
RUN monitor
M8000
T0 K50 *1 B

FX3UC-4AD
FX3U-4AD
T0
FNC 79 K0 K198 K100 K1 The sampling time will be set to 100 ms.
*2
TO P

FNC 78 The digital values set for channels 1

K0 K10 D0 K4 to 4 will be read out to D0 to D3.
FROM P
Clear data
history C
X000

FX3U-4AD-ADP
FNC 79 K0 K199 H000F K1 Data history of all the channels will be
TO P erased.
Temporarily stop
data history
X001
FNC 79 K0 K199 H0F00 K1 Data history of all the channels will be
temporarily stopped.
D
TO P
Temporarily stop
data history

FX3G-2AD-BD
X001
FNC 79 K199 H0000 K1 Temporary stoppage of data history will be
K0 canceled for all the channels.
TO P

T0
FNC 79
TO
K0 K200 D100 K100 Channel-1 history data (100 data samples)
will be read out to D100 to D199. E

FX3U-4DA
FNC 07 The watchdog timer will be refreshed. *3
WDT

FNC 79 Channel-2 history data (100 data samples)

K0 K1900 D200 K100 will be read out to D200 to D299.
TO
FNC 07
F
The watchdog timer will be refreshed. *3

FX3U-4DA-ADP
WDT

FNC 79 Channel-3 history data (100 data samples)

K0 K3600 D300 K100 will be read out to D300 to D399.
TO
FNC 07
WDT
The watchdog timer will be refreshed. *3
G

FX3G-1DA-BD
FNC 79 K0 K4300 D400 K100 Channel-4 history data (100 data samples)
TO will be read out to D400 to D499.

FNC 07 The watchdog timer will be refreshed. *3

WDT
H
*1. After setting the input mode, set the data writing time (waiting time) to 5 seconds or more for each
FX3U-4AD-PT

setting.
After this, if the same input mode is used, it is not necessary to set the input mode and waiting time
(T0 K50) again.
-ADP

*2. The set input mode and the sampling time are retained in the 4AD EEPROM. Therefore, even if the
sequence program is deleted, the previously set functions will still be valid. I
*3. If a large amount of history data is read out, the scan time of the PLC will be become longer. If the
FX3U-4AD-PTW

scan time exceeds 200 ms, the CPU error indicator lamp will illuminate, and the PLC will stop.
Insert WDT instruction (watchdog timer refresh) between BMOV instructions.
-ADP

J
FX3U-4AD-PNK
-ADP

B-61
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 7 Examples of Practical Programs
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 7.4 Initialization Program for 4AD (Factory Default)

7.4 Initialization Program for 4AD (Factory Default)

Execution of the following program will reset the input mode (BFM #0), offset data (BFM #41 to #44), gain
data (BFM #51 to #54), etc. to the factory default status.

1. Conditions
The sequence program described in this section runs under the following conditions.
1) System configuration
The FX3U-4AD (unit No.0) should be connected to the FX3U Series PLC.
2) Device assignment
Device Description
X000 4AD initialization command

2. Example of sequence program

• For FX3U, FX3UC Series PLCs

4AD initialization command

X000
FNC 12 K1 U0\G20 The 4AD will be initialized.
MOV P (BFM #0 to #6999 will be cleared.)

• For FX3G, FX3U, FX3UC Series PLCs

4AD initialization command

X000
FNC 79 K0 K20 K1 K1 The 4AD will be initialized.
TO P (BFM #0 to #6999 will be cleared.)

3. Cautions
• It takes approximately 5 seconds to complete initialization.
Do not write any data to the buffer memory in this time.
• When initialization is complete, the value of BFM #20 will be reset to "K0".
• Priority is given to the data change disable (BFM #19). To initialize, write K2080 to BFM #19.

B-62
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 8 Troubleshooting
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 8.1 PLC Version Number Check

Common Items
8. Troubleshooting
This chapter describes troubleshooting methods and error codes. B
If the A/D conversion data is not input, or if the proper digital value is not input, check the following items:

FX3UC-4AD
FX3U-4AD
• PLC version number
• Wiring
• Program
• Error status C

FX3U-4AD-ADP
8.1 PLC Version Number Check
Verify that the PLC being used is of the following version or later.

FX3U-4AD D

FX3G-2AD-BD
Compatible PLC Version number
FX3U Series PLC Ver. 2.20 or later
FX3UC Series PLC Ver. 1.30 or later
FX3G Series PLC Ver. 1.00 or later
E
FX3UC-4AD

FX3U-4DA
Compatible PLC Version number
FX3UC Series PLC Ver. 1.30 or later

→ For a detailed description of version number check method, refer to Section 1.3.
F

FX3U-4DA-ADP
8.2 Wiring Check
Check the wiring as follows:

1. Power
The 4AD needs driving power. Verify that the power supply line is properly connected. Also check that the 24 G

FX3G-1DA-BD
V indicator lamp of the 4AD is on.

2. Analog input line

Use the 2-core twisted shielded cable for the analog input line. In addition, be sure to separate the analog
input line from any other power lines or inductive lines.

3. Use of current input mode

H
FX3U-4AD-PT

To use the current input mode for a channel, be sure to short-circuit the line between the V+ terminal and the
I+ terminal of the channel.
Without short circuiting the terminals, it is impossible to obtain the correctly converted digital values.
-ADP

→ For a detailed description of wiring, refer to Chapter 4.

I
8.3 Program Check
FX3U-4AD-PTW

Check the program as follows:

-ADP

1. Storage devices
Check whether the device holding digital values contains any values written by other programs.
J
2. Setting of averaging time and digital filter function
FX3U-4AD-PNK

Check if the averaging time or the digital filter function is set for the same channel. It is not possible to set both
functions for the same channel.
-ADP

B-63
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 8 Troubleshooting
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 8.4 Error Status Check

8.4 Error Status Check

If an error occurs in the 4AD, the corresponding bit of BFM #29 (error status buffer memory) will turn on. To
solve the problem, refer to the troubleshooting method described below:

Bit No. Items Bit No. Items

b0 Error detection b8 Data setting error detection
b1 - b9 -
b2 Power supply error b10 Averaging time setting error
b3 Hardware error b11 Digital filter setting error
b4 A/D conversion error b12 Abrupt change detection value setting error
b5 - b13 Upper/lower limit detection setting error
b6 BFM reading/writing impossible b14 -
b7 - b15 Addition data setting error

1. Error detection (b0)

1) Description of error
If any bits from b2 to b4 are turned on, this bit (b0) will turn on.

2. Power supply error (b2)

1) Description of error
The 24 V power is not being supplied properly.
2) Remedy
Check the wiring condition or the supplied voltage.

3. Hardware error (b3)

1) Description of error
4AD may be defective.
2) Remedy
Please contact the nearest Mitsubishi Electric distributor office.

4. A/D conversion error (b4)

1) Description of error
The A/D conversion value is abnormal.
2) Remedy
Check the over-scale status data (BFM #28) to localize the error channel. After that, check to make sure
the input analog data is in the specified range.

5. BFM reading/writing impossible (b6)

1) Description of error
While voltage input characteristics are being changed, this bit will turn on. If this bit (b6) is on, A/D
conversion data cannot be read out correctly or cannot be written to the BFM correctly.
2) Remedy
Check the sequence program and confirm that the input characteristics (BFM #21 b0 to b3) are not being
written continuously.

6. Data setting error detection (b8)

1) Description of error
If any bits from b10 to b15 are turned on, this bit (b8) will turn on.

7. Averaging time setting error (b10)

1) Description of error
The averaging time (BFM #2 to #5) is not set correctly.
2) Remedy
Set the averaging time again in the range from 1 to 4095.

B-64
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 8 Troubleshooting
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 8.5 4AD Initialization and Test Program

A
8. Digital filter setting error (b11)

Common Items
1) Description of error
The digital filter value (BFM #6 to #9) is not set correctly.
2) Remedy
Set the digital filter value again in the range from 0 to 1600.
Also check that the averaging is not set for the selected channel. B

FX3UC-4AD
FX3U-4AD
9. Abrupt change detection value setting error (b12)
1) Description of error
The abrupt change detection value (BFM #91 to #94) is not set correctly.
2) Remedy
Check that the abrupt change detection value is in the range specified for the selected input mode. If the C
value is out of the range, correct it.

FX3U-4AD-ADP
10. Upper/lower limit detection setting error (b13)
1) Description of error
The lower limit error detection value (BFM #71 to #74) or the upper limit error detection value (BFM #81 to
#84) is not set correctly. D
2) Remedy

FX3G-2AD-BD
Check that the upper/lower limit error detection value is in the range specified for the selected input
mode. If the value is out of the range, correct it.

11. Addition data setting error (b15)

1) Description of error E
The addition data (BFM #61 to #64) is not set correctly.

FX3U-4DA
2) Remedy
Set the addition data again in the range from -16000 to +16000.

8.5 4AD Initialization and Test Program F

FX3U-4DA-ADP
If the remedies above cannot solve the problem, initialize and then check the conditions of the 4AD using the
test program.
→ For a detailed description of 4AD initialization program, refer to Subsection 7.4.
→ For a detailed description of the test program, refer to Chapter 4.

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

B-65
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 8 Troubleshooting
FX3U-4AD/FX3UC-4AD (4-channel Analog Input) 8.5 4AD Initialization and Test Program

MEMO

B-66
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition
FX3U-4AD-ADP (4-channel analog Input)

Common Items
B

FX3UC-4AD
FX3U-4AD
FX3G/FX3U/FX3UC Series Programmable
Controllers C

FX3U-4AD-ADP
User's Manual [Analog Control Edition]
FX3U-4AD-ADP (4-channel analog Input)
D

FX3G-2AD-BD
E

FX3U-4DA
F

FX3U-4DA-ADP
G

FX3G-1DA-BD

H
FX3U-4AD-PT

Foreword
-ADP

This manual describes the specifications, wiring, and operation methods for the FX3U-4AD-ADP special
adapter (4-channel analog input) and should be read and understood before attempting to install or use the
unit. I
Store this manual in a safe place so that you can take it out and read it whenever necessary. Always forward
FX3U-4AD-PTW

it to the end user.

-ADP

This manual confers no industrial property rights or any rights of any other kind, nor does it confer any patent
licenses. Mitsubishi Electric Corporation cannot be held responsible for any problems involving industrial property
rights which may occur as a result of using the contents noted in this manual. J
FX3U-4AD-PNK

© 2005 MITSUBISHI ELECTRIC CORPORATION

-ADP

C-1
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition
FX3U-4AD-ADP (4-channel analog Input)

C-2
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 1 Outline
FX3U-4AD-ADP (4-channel analog Input) 1.1 Outline of Functions

Common Items
1. Outline
This chapter outlines the FX3U-4AD-ADP (referred to as the 4AD-ADP). B

FX3UC-4AD
FX3U-4AD
1.1 Outline of Functions
The FX3U-4AD-ADP is an analog special adapter. Connect the FX3U-4AD-ADP to the FX3U/FX3UC/FX3G
Series PLC to read 4 channels of voltage/current data.
C

FX3U-4AD-ADP
1) Up to 4 4AD-ADP units can be connected to the FX3U/FX3UC Series PLC.
Up to 2*1 4AD-ADP units can be connected to the FX3G Series PLC.
(including the other analog special adapters).
2) Either "voltage input" or "current input" can be specified for each channel.
3) A/D conversion data of each channel will be automatically written to the special data register of the FX3U/ D
FX3UC/FX3G Series PLC.

FX3G-2AD-BD
System Point and section to be
referred to

FX3U/FX3UC Series PLC : 4 maximum

FX3G Series PLC : 2*1 maximum
…… Number of connectable
E
(including other analog special adapters)

FX3U-4DA
units
FX3U/FX3UC/FX3G Series PLC

To check the connectable

…… PLC model number, refer
to Section 1.3.
+ + F

FX3U-4DA-ADP
*2
4th 3rd 2nd 1st Expansion board
adapter adapter adapter adapter

Analog data …… For a detailed

description of wiring,

Flowmeter, pressure sensor, etc.

refer to Chapter 3. G

For FX3U/FX3UC FX3G-1DA-BD

Series PLC
Contents Special devices …… For a detailed description
of special devices, refer to
H
Transfer direction
FX3U-4AD-PT

1st adapter M/D8260 to M/D8269 Chapter 4.

•Analog data
2nd adapter M/D8270 to M/D8279 For a detailed description
•Switching of input mode of a basic program, refer to
•Setting of averaging 3rd adapter M/D8280 to M/D8289 Section 4.8.
-ADP

time M/D8290 to M/D8299

4th adapter

Refer to the system configuration shown in the User's Manual - Hardware Edition to check the number of connectable units I
and to configure the entire system.
FX3U-4AD-PTW

*1.Only 1 analog special adapter can be connected to the 14-point and 24-point type main unit.
-ADP

*2.The expansion board is not required when connecting with the FX3UC (D, DSS) PLC.
For the FX3G Series PLC a connector conversion adapter is used.

J
FX3U-4AD-PNK
-ADP

C-3
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 1 Outline
FX3U-4AD-ADP (4-channel analog Input) 1.2 Setup Procedure Before Starting Operation

1.2 Setup Procedure Before Starting Operation

Before starting analog input using the 4AD-ADP, follow the procedure below to set up the system:

FX3U-4AD-ADP

Refer to Chapter 1.

Outline Outline of system:

• Compatible PLC version number
• Compatible programming tool version number
Refer to Chapter 2.

Specifications check Specifications:

• Operation environment
• Performance specifications
Refer to the • Input characteristics
common pages.

System configuration and selection System configuration:

(Refer to the common pages for analog control.)
• Selection of units
Refer to Chapter 3.

Wiring Wiring:
• Selection of sensor cable
• Power supply line
Refer to Chapter 4. • Analog input line

Programming Programming:
• Details of special devices
• Examples of basic programs
Refer to Chapter 5.

Changing of input characteristics Method of input characteristics change:

• How to use scaling instruction

If the error status data or the input analog value is

abnormal, refer to Chapter 6 "Troubleshooting."

C-4
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 1 Outline
FX3U-4AD-ADP (4-channel analog Input) 1.3 Connectable PLCs and Version Number

A
1.3 Connectable PLCs and Version Number

Common Items
The 4AD-ADP is compatible with the following PLCs.

Compatible PLC Version number Date of production B

FX3U Series PLC Ver.2.20 or later After May 2005 (initial production)

FX3UC-4AD
FX3U-4AD
FX3UC Series PLC Ver.1.20 or later After April 2004
FX3G Series PLC Ver.1.00 or later After June 2008 (initial production)

1. Version check C

FX3U-4AD-ADP
Special data register D8001 contains information for determining the PLC version number.

D8001 2 4 1 0 0
PLC type and
version number Version data (Example: Ver. 1.00)
D
(
PLC type Example: 24 = FX3U and FX3UC series
(

FX3G-2AD-BD
26 = FX3G series

2. How to look at the manufacturer's serial number

The year and month of production of the product can be seen from the manufacturer's serial number
"SERIAL" indicated on the label adhered to the right side of the product.
E
Example:

FX3U-4DA
FX3U-48MR/ES(production number : 570001)

Right side MITSUBISHI PROGRAMMABLE

CONTROLLER

MODEL FX3U-48MR/ES
100-240VAC 50/60Hz 40W
OUT:30VDC/240VAC 2A(COSφ=1) F

FX3U-4DA-ADP
SERIAL 570001

80M1 IND. CONT. EQ.

MITSUBISHI ELECTRIC CORPORATION
MADE IN JAPAN

5 7 0 0 0 1 G

FX3G-1DA-BD
Control number
Month (Example: 7 = July), 1 to 9 = January to September,
X = October, Y = November, Z = December
Year (Example: 5 = 2005), last digit of dominical year

H
1.4 Compatible Programming Tool Version Number
FX3U-4AD-PT

Use the programming tool with following version numbers to create programs for the 4AD-ADP:
-ADP

Software Version number Remarks

GX Developer Ver.SW8 P or later
When selecting a model, select FX3U(C)*1.
I
• SW D5C-GPPW-J (Ver.8.13P)
FX3U-4AD-PTW

• SW D5C-GPPW-E (Ver.8.72A or later) When selecting a model, select FX3G.

-ADP

If a programming tool with the wrong version number is used, programming will not be possible.
*1. For Ver. 8.13P to 8.24A of GX Developer, select FX3UC for the PLC type.
J
FX3U-4AD-PNK
-ADP

C-5
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 Specifications
FX3U-4AD-ADP (4-channel analog Input) 2.1 Generic Specifications

2. Specifications
This chapter describes the general, power supply, and performance specifications for the 4AD-ADP.

2.1 Generic Specifications

Item Specifications
Ambient 0 to 55°C (32 to 131°F) when operating
temperature -25 to 75°C (-13 to 167°F) when stored
Relative
5 to 95%RH (no condensation) when operating
humidity
Frequency Acceleration Half amplitude
(Hz) (m/s2) (mm)
Tests 10 times in each
Vibration 10 - 57 - 0.035 direction (X-, Y-, and Z-
DIN Rail Mounting
resistance 57 - 150 4.9 - axis directions) (Total:
80 min, each)
10 to 57 − 0.075
Direct Mounting*1
57 to 150 9.8 −
Shock
147 m/s2 Acceleration, Action time: 11ms, 3 times by half-sine pulse in each direction X, Y, and Z
resistance
Noise Using noise simulator of:
resistance Noise voltage: 1,000Vp-p / Noise width: 1µs / Rise: 1ns / Cycle: 30 to 100Hz
Dielectric
withstand 500 V AC, for 1 min
voltage Between all terminals and ground terminal
Insulation 5MΩ or more using 500V DC
resistance insulation resistance meter
Class D grounding (grounding resistance: 100 Ω or less)
Grounding
<Common grounding with a heavy electrical system is not allowed.>*2
Working
Free from corrosive or flammable gas and excessive conductive dusts
environment
Working
< 2000m*3
altitude

*1. If 4AD-ADP is connected to the FX3UC Series PLC, direct installation is not possible.

*2.
PLC Other PLC Other PLC Other
equipment equipment equipment

Independent grounding Shared grounding Common grounding

Best condition Good condition Not allowed

→ For a detailed description of the grounding, refer to Section 3.5.

*3. If the pressure is higher than the atmospheric pressure, do not use the 4AD-ADP.
The 4AD-ADP may malfunction.

C-6
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 Specifications
FX3U-4AD-ADP (4-channel analog Input) 2.2 Power Supply Specifications

A
2.2 Power Supply Specifications

Common Items
Item Specifications
A/D conversion circuit 24V DC +20%-15%, 40mA B
driving power (It is necessary to connect a 24V DC power supply to the terminal block.)

FX3UC-4AD
FX3U-4AD
5V DC, 15mA
Interface driving power (Since the internal power is supplied from the FX Series main unit, it is not
necessary to supply the power.)

2.3 Performance Specifications

C

FX3U-4AD-ADP
Specifications
Item
Voltage input Current input
D
Analog input 0V to 10V DC 4mA to 20mA DC

FX3G-2AD-BD
range (Input resistance: 194 kΩ) (Input resistance: 250 Ω)
Absolute input
-0.5V, +15V -2mA, +30mA
maximum
Digital output 12 bits, binary 11 bits, binary
Resolution 2.5mV (10V/4000) 10µA (16mA/1600) E
• ±0.5% (±50mV) for 10V full scale • ±0.5% (±80µA) for 16mA full scale

FX3U-4DA
(when ambient temperature is 25°C ± 5°C) (when ambient temperature is 25°C ± 5°C)
Total accuracy
• ±1.0% (±100mV) for 10V full scale • ±1.0% (±160µA) for 16mA full scale
(when ambient temperature is 0°C to 55°C) (when ambient temperature is 0°C to 55°C)
• FX3U/ FX3UC Series PLC : 200 µs (The data will be updated at every scan time.)
A/D conversion
time
• FX3G Series PLC : 250 µs (The data will be updated at every scan time.) F
→ For a detailed description of data update, refer to Section 2.4.

FX3U-4DA-ADP
4080 1640

4000 1600
G

FX3G-1DA-BD
Input
Digital output
Digital output

characteristics

0 10V 10.2V 0 4mA 20mA 20.4mA H

Analog input Analog input
FX3U-4AD-PT

• The photocoupler is used to insulate the analog input area from the PLC.
Insulation method • The DC/DC converter is used to insulate the power supply line from the analog input area.
-ADP

• Channels are not insulated from each other.

Number of I/O
points occupied
0 point (This number is not related to the maximum number of input/output points of the PLC.) I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

C-7
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 Specifications
FX3U-4AD-ADP (4-channel analog Input) 2.4 A/D Conversion Time

2.4 A/D Conversion Time

This section describes the A/D conversion time.

2.4.1 When connected to a FX3U, FX3UC PLC

1. A/D conversion and special data register update timing

A/D conversion is performed at every scan time of the PLC.
During execution of END instruction, the PLC performs A/D conversion, reads out the A/D converted data,
and then writes the data in the special data registers.
FX3U-4AD-ADP FX3U-4AD-ADP FX3U/FX3UC Series PLC
n'th 1st

Sequence
program
A/D conversion start
A/D command
conversion
Digital value writing
200µs/4ch
A/D conversion start END instruction
A/D command
conversion
Digital value writing
200µs/4ch

2. A/D conversion during PLC STOP

Even if the PLC is stopped, A/D conversion will be performed and the special data registers will be updated.

3. If two or more analog special adapters are connected

During execution of the END instruction, data will be read out from all the connected adapters (in the order of
1st adapter → 2nd adapter... 4th adapter).

4. A/D conversion speed (data update time)

During execution of END instruction, the A/D converted data of all 4 channels will be read out in 200µs, and
the data read out will be written to the special data registers.
END instruction execution time will be "200µs × number of connected analog adapters."

C-8
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 Specifications
FX3U-4AD-ADP (4-channel analog Input) 2.4 A/D Conversion Time

A
2.4.2 When connected to a FX3G PLC

Common Items
1. A/D conversion and special data register update timing
A/D conversion is performed at every scan time of the PLC.
During execution of END instruction, the PLC performs A/D conversion, reads out the A/D converted data,
and then writes the data in the special data registers. B

FX3UC-4AD
FX3U-4AD
FX3U-4AD-ADP FX3U-4AD-ADP
2nd 1st FX3G Series PLC

C
Sequence
program
A/D conversion start

FX3U-4AD-ADP
A/D command
conversion
Digital value writing
250µs/4ch
A/D conversion start END instruction
A/D
conversion
command
D

FX3G-2AD-BD
Digital value writing
250µs/4ch

2. A/D conversion during PLC STOP

Even if the PLC is stopped, A/D conversion will be performed and the special data registers will be updated. E

FX3U-4DA
3. If two analog special adapters are connected
During execution of the END instruction, data will be read out from all the connected adapters (in the order of
1st adapter → 2nd adapter).

4. A/D conversion speed (data update time)

During execution of END instruction, the A/D converted data of all 4 channels will be read out in 250µs, and
F

FX3U-4DA-ADP
the data read out will be written to the special data registers.
END instruction execution time will be "250µs × number of connected analog adapters."

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

C-9
FX3U/FX3UC Series PLC User's Manual - Analog Control Edition 3 Wiring
FX3U-4AD-ADP (4-channel analog Input)

3. Wiring
This chapter describes the 4AD-ADP wiring.
Observe the following caution to wire the 4AD-ADP.

WIRING PRECAUTIONS

• Make sure to cut off all phases of the power supply externally before attempting wiring work.
Failure to do so may cause electric shock or damages to the product.

WIRING PRECAUTIONS

• Connect the DC power supply wiring to the dedicated terminals described in this manual.
If an AC power supply is connected to a DC input/output terminal or DC power supply terminal, the PLC will be
burnt out.
• Do not wire vacant terminals externally.
Doing so may damage the product.
• Perform class D grounding (grounding resistance: 100Ω or less) to the grounding terminal on the main unit.
Do not use common grounding with heavy electrical systems.
• When drilling screw holes or wiring, make sure cutting or wire debris does not enter the ventilation slits.
Failure to do so may cause fire, equipment failures or malfunctions.
• Make sure to observe the following precautions in order to prevent malfunctions under the influence of noise:
- Do not bundle the power line or twisted shielded cable together with or lay it close to the main circuit, high-
voltage line, or load line.
Otherwise, noise disturbance and/or surge induction are likely to take place. As a guideline, lay the control line
at least 100mm (3.94") or more away from the main circuit, high-voltage line, or load line.
- Ground the shield of the analog input/output cable at one point on the signal receiving side.
However, do not use common grounding with heavy electrical systems.
• Make sure to properly wire to the European terminal board in accordance with the following precautions.
Failure to do so may cause electric shock, a short-circuit, wire breakage, or damage to the product.
- The disposal size of the cable end should be 9 mm (0.35").
- Tightening torque should be between 0.22 to 0.25 N•m.
- Twist the end of strand wire and make sure there are no loose wires.
- Do not solder-plate the electric wire ends.
- Do not connect more than the specified number of wires or electric wires of unspecified size.
- Affix the electric wires so that neither the terminal block nor the connected parts are directly stressed.

C-10
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3U-4AD-ADP (4-channel analog Input) 3.1 Terminal Layout

A
3.1 Terminal Layout

Common Items
The terminals of the 4AD-ADP are arranged as follows:

B
FX3U-4AD-ADP

FX3UC-4AD
FX3U-4AD
POWER

Signal Application
24+
C
24+

External power
24-
24-

Grounding terminal

FX3U-4AD-ADP
V1+
VI+
I1+

I1+ Channel 1 analog input

COM1

COM1
V2+

V2+
Channel 2 analog input D
I2+

I2+
COM2

COM2

FX3G-2AD-BD
V3+

V3+
I3+ Channel 3 analog input
I3+
COM3

COM3
V4+

V4+
Channel 4 analog input
I4+

I4+
E
COM4

COM4

FX3U-4DA
F

FX3U-4DA-ADP
G

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

C-11
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3U-4AD-ADP (4-channel analog Input) 3.2 Applicable Cables and Terminal Tightening Torque

3.2 Applicable Cables and Terminal Tightening Torque

Use the following cables to connect with the counterpart equipment. Terminate the cable ends as shown
below.

1. Cables
Applicable cable and tightening torque
Wire size (stranded/ Tightening
Termination
single-wire) torque
0.3mm2 to 0.5mm2 • To connect a stranded cable, peel the cover off the cable
Single-wire and then twist the core before connection.
(AWG22 to 20)
• To connect a single-wire cable, just strip the cover off the
2-wire 0.3mm2(AWG22) cable before connection.
0.22N•m to • Rod terminal with insulation sleeve
Rod terminal 0.3mm2 to 0.5mm2 0.25N•m (recommended terminal)
with (AWG22 to 20) AI 0.5-8WH : Manufactured by Phoenix Contact
insulation (Refer to the rod terminal
• Caulking tool
sleeve external view shown in the
CRIMPFOX ZA 3 : Manufactured by Phoenix Contact
following figure.)
(or CRIMPFOX UD 6 : Manufactured by Phoenix Contact)

2. Termination of cable end

To terminate the cable, treat the stranded/single-wire directly or use a rod terminal with insulation sleeve.
• To directly terminate the end of a stranded/single-wire cable: Termination of cable end
- Twist the end of the stranded cable so that the "barbed wires"
cannot protrude.
- Do not solder-plate the end of the cable.
9mm
(0.35")
• To terminate cable end using a rod terminal with insulation sleeve: Insulation sleeve Contact area
If the cable cover is too thick, it may be difficult to insert the cable into (Crimp area)
the insulation sleeve. For this reason, select an appropriate cable while
referring to the external view. 8mm (0.31")
Manufacturer Model Caulking tool 2.6mm 14mm
(0.1")
CRIMPFOX ZA 3 (0.55")
Phoenix Contact AI 0.5-8WH
(or CRIMPFOX UD 6)

3. Tool
• To tighten terminals, use a small-sized screwdriver whose head is straight and is not widened as shown in
the figure to the right.

Note:
If the diameter of screwdriver grip is too small, tightening torque will not
The head
be able to be achieved. Use the following recommended screwdriver or should be
an appropriate replacement (grip diameter: approximately 25mm). straight.
Manufacturer Model
Phoenix Contact SZS 0.4×2.5 0.4mm 2.5mm
(0.01") (0.09")

C-12
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3U-4AD-ADP (4-channel analog Input) 3.3 Power Supply Line

A
3.3 Power Supply Line

Common Items
Connect the 24V DC power supply line of the 4AD-ADP to the 24+ and 24- terminals of the terminal block.

3.3.1 To connect to the FX3G, FX3U Series PLC

B

FX3UC-4AD
FX3U-4AD
1. To use an External power supply 2. To use the 24V DC power of the PLC

4AD-ADP FX3G/FX3U Series 4AD-ADP FX3G/FX3U Series

PLC (Main unit) PLC (Main unit)
15V 15V

FX3U-4AD-ADP
24- 24+ 24- 24+ 0V 24V D

FX3G-2AD-BD
Terminal
block Terminal
block

Class-D Class-D
24V DC grounding grounding
E

FX3U-4DA
Caution regarding connection of the power supply line:
• Ground the " " terminal to a class-D grounded power supply line (100Ω or less) together with the
grounding terminal of the PLC main unit.
• For the timing of power-on/off when using an external power supply, see the following manual of the PLC
to be connected. F
→ Refer to the FX3G Series User's Manual - Hardware Edition.

FX3U-4DA-ADP
→ Refer to the FX3U Series User's Manual - Hardware Edition.

3.3.2 To connect to the FX3UC Series PLC

4AD-ADP FX3UC Series PLC

(Main unit)
FX2NC Series PLC
(Input extension
G

FX3G-1DA-BD
15V block)

Power
H
FX3U-4AD-PT

Power Power crossover

connector connector connector

24- 24+ 24- 24+ 24- 24+ 24- 24+

-ADP

Terminal Black Red Green Black Red

block I
FX3U-4AD-PTW

Class-D
grounding
-ADP

24V DC

Cautions regarding connection of the power supply line:

J
• For the 24V DC power supply line, be sure to use the same power as the FX3UC Series PLC.
FX3U-4AD-PNK

• Ground the " " terminal to a class-D grounded power supply line (100Ω or less) together with the
grounding terminal of the PLC main unit.
-ADP

C-13
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3U-4AD-ADP (4-channel analog Input) 3.4 Analog Input Line

3.4 Analog Input Line

For analog input, "voltage input" or "current input" can be selected for each channel.

If current input is selected: 4AD-ADP

Terminal
*1 block
147kΩ ch
V +
*2 250Ω
I +
47kΩ
COM

If voltage input is selected:

*1 147kΩ ch
V +
250Ω
I +
47kΩ
COM

Connection of external +15V

power supply line
24+
24V DC
24-

Class-D
grounding

V +, I +, ch : represents the channel number.

*1. Use the 2-core shielded twisted pair cable for the analog input lines, and separate the analog input
lines from other power lines or inductive lines.
*2. If "current input" is selected, be sure to short the line between the V + terminal and the I + terminal.
( : Channel number).

3.5 Grounding
Grounding should be performed as stated below.
• The grounding resistance should be 100Ω or less.
• Independent grounding should be performed for best results.
When independent grounding is not performed, perform "shared grounding" as shown in the following
figure.
→ For details, refer to the User’s Manual - Hardware Edition of the PLC Series.

PLC Other PLC Other PLC Other

equipment equipment equipment

Independent grounding Shared grounding Common grounding

Best condition Good condition Not allowed

• The grounding wire size should be AWG22 to 20 (0.3 to 0.5 mm2).

• The grounding point should be close to the PLC, and all grounding wires should be as short as possible.

C-14
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-ADP (4-channel analog Input) 4.1 Loading of A/D Conversion Data

Common Items
4. Programming
This chapter describes how to create programs that can read analog data using the 4AD-ADP. B

FX3UC-4AD
FX3U-4AD
4.1 Loading of A/D Conversion Data
1) The input analog data will be converted into digital data and then stored in the special devices of the
FX3U/FX3UC/FX3G Series PLC.
C
2) If the data is stored in the special devices, the averaging time can be set, and the input mode can be

FX3U-4AD-ADP
specified.
3) Special auxiliary relays (10 points) and special data registers (10 points) are assigned automatically
starting from the adapter nearest to the main unit.
→ For a detailed description of special device assignment, refer to Section 4.2.
• FX3U, FX3UC Series PLC D

FX3G-2AD-BD
Communic High-speed
FX3U-4AD FX3U-4AD FX3U-4AD -ation FX3U-4AD input/output
-ADP -ADP -ADP special -ADP special
adapter adapter FX3U/FX3UC Series PLC

4th 3rd 2nd 1st Special devices

Special auxiliary relays: E
M8260 to M8269

FX3U-4DA
A/D Special data registers:
D8260 to D8269

Special auxiliary relays:

M8270 to M8279
A/D Special data registers:
D8270 to D8279
Sequence
F
program

FX3U-4DA-ADP
Special auxiliary relays:
M8280 to M8289
A/D Special data registers:
D8280 to D8289.

Special auxiliary relays:

A/D
M8290 to M8299
Special data registers:
G
D8290 to D8299

FX3G-1DA-BD
The analog special adapter nearest to the main unit is counted as the 1st analog special adapter, and the
next adapter as the 2nd analog special adapter, and so on. However, in this case, do not include the high-
speed input/output special adapter and the communication special adapter. H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

C-15
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-ADP (4-channel analog Input) 4.1 Loading of A/D Conversion Data

• FX3G Series PLC

Communi-
cation Connector
FX3U-4AD special FX3U-4AD conversion
-ADP adapter -ADP adapter FX3G Series PLC
*1
2nd 1st
Special devices
Special auxiliary relays:
M8280 to M8289
A/D Special data registers:
D8280 to D8289.
Sequence
program
Special auxiliary relays:
M8290 to M8299
A/D Special data registers:
D8290 to D8299.

The analog special adapter nearest to the main unit is counted as the 1st analog special adapter, and the
next adapter as the 2nd analog special adapter. However, in this case, do not include the connector
conversion adapter and the communication special adapter.
*1. The second special adapter is not available in the 14-point and 24-point type main unit.

C-16
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-ADP (4-channel analog Input) 4.2 List of Special Devices

A
4.2 List of Special Devices

Common Items
If the 4AD-ADP is connected, special devices will be assigned automatically as shown in the following table:
• FX3U, FX3UC Series PLC
R: Read / W: Write
Special Device number Refer-
B
Description Attribute

FX3UC-4AD
FX3U-4AD
device 1st 2nd 3rd 4th ence
M8260 M8270 M8280 M8290 Switches the input mode of channel 1 R/W
M8261 M8271 M8281 M8291 Switches the input mode of channel 2 R/W Section
Special 4.3
M8262 M8272 M8282 M8292 Switches the input mode of channel 3 R/W
auxiliary
relay M8263 M8273 M8283 M8293 Switches the input mode of channel 4 R/W C

FX3U-4AD-ADP
M8264 to M8274 to M8284 to M8294 to
Unused (Do not use.) - -
M8269 M8279 M8289 M8299
D8260 D8270 D8280 D8290 Channel-1 input data R
D8261 D8271 D8281 D8291 Channel-2 input data R Section
4.4
D8262
D8263
D8272
D8273
D8282
D8283
D8292
D8293
Channel-3 input data
Channel-4 input data
R
R
D

FX3G-2AD-BD
Averaging time for channel-1 (Setting
D8264 D8274 D8284 D8294 R/W
range: 1 to 4095)

Special Averaging time for channel-2 (Setting

D8265 D8275 D8285 D8295 R/W
data range: 1 to 4095) Section
register
D8266 D8276 D8286 D8296
Averaging time for channel-3 (Setting
range: 1 to 4095)
R/W
4.5
E

FX3U-4DA
Averaging time for channel-4 (Setting
D8267 D8277 D8287 D8297 R/W
range: 1 to 4095)
Section
D8268 D8278 D8288 D8298 Error status R/W
4.6

D8269 D8279 D8289 D8299 Model code = 1 R

Section
4.7
F

FX3U-4DA-ADP
G

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

C-17
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-ADP (4-channel analog Input) 4.3 Switching of Input Mode

• FX3G Series PLC

R: Read / W: Write
Device number
Special device Description Attribute Reference
1st 2nd
M8280 M8290 Switches the input mode of channel 1 R/W
M8281 M8291 Switches the input mode of channel 2 R/W
Section 4.3
M8282 M8292 Switches the input mode of channel 3 R/W
Special auxiliary relay
M8283 M8293 Switches the input mode of channel 4 R/W
M8284 to M8294 to
Unused (Do not use.) - -
M8289 M8299
D8280 D8290 Channel-1 input data R
D8281 D8291 Channel-2 input data R
Section 4.4
D8282 D8292 Channel-3 input data R
D8283 D8293 Channel-4 input data R
Averaging time for channel-1 (Setting
D8284 D8294 R/W
range: 1 to 4095)

Special data register Averaging time for channel-2 (Setting

D8285 D8295 R/W
range: 1 to 4095)
Section 4.5
Averaging time for channel-3 (Setting
D8286 D8296 R/W
range: 1 to 4095)
Averaging time for channel-4 (Setting
D8287 D8297 R/W
range: 1 to 4095)
D8288 D8298 Error status R/W Section 4.6
D8289 D8299 Model code = 1 R Section 4.7

4.3 Switching of Input Mode

Turn the special auxiliary relay on/off to switch the input mode of 4AD-ADP between the current input mode
and the voltage input mode.
To switch the input mode, use the following special auxiliary relays:
• FX3U, FX3UC Series PLC
Special auxiliary relay
Description
1st 2nd 3rd 4th
M8260 M8270 M8280 M8290 Switches the input mode of channel 1
M8261 M8271 M8281 M8291 Switches the input mode of channel 2 OFF: Voltage input
M8262 M8272 M8282 M8292 Switches the input mode of channel 3 ON: Current input
M8263 M8273 M8283 M8293 Switches the input mode of channel 4

• FX3G Series PLC

Special auxiliary relay
Description
1st 2nd
M8280 M8290 Switches the input mode of channel 1
M8281 M8291 Switches the input mode of channel 2 OFF: Voltage input
M8282 M8292 Switches the input mode of channel 3 ON: Current input
M8283 M8293 Switches the input mode of channel 4

1. Program Example (For FX3U, FX3UC Series PLC)

To switch the channel input mode, create a sequence program as follows:
1) To switch the input mode of channel 2) To switch the input mode of channel 2
1 of the 1st analog special adapter to the of the 1st analog special adapter to
voltage input mode: the current input mode:
M8001 M8000
M8260 M8261
Normally OFF Normally ON

C-18
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-ADP (4-channel analog Input) 4.4 Input Data

A
4.4 Input Data

Common Items
Numeric data type: Decimal (K)
The data converted by the 4AD-ADP will be stored in the special data registers.
The special data registers that store the input data are shown in the following table:
B
• FX3U, FX3UC Series PLC

FX3UC-4AD
FX3U-4AD
Special data register
Description
1st 2nd 3rd 4th
D8260 D8270 D8280 D8290 Stores the channel-1 input data
D8261 D8271 D8281 D8291 Stores the channel-2 input data C

FX3U-4AD-ADP
D8262 D8272 D8282 D8292 Stores the channel-3 input data
D8263 D8273 D8283 D8293 Stores the channel-4 input data

• FX3G Series PLC

D
Special data register

FX3G-2AD-BD
Description
1st 2nd
D8280 D8290 Stores the channel-1 input data
D8281 D8291 Stores the channel-2 input data
D8282 D8292 Stores the channel-3 input data
E
D8283 D8293 Stores the channel-4 input data

FX3U-4DA
The converted A/D immediate data or averaged data (data average conforming to the specified averaging
time) will be stored in the above data registers as the input data.
→ For a detailed description of the averaging time, refer to Section 4.5.

1. Caution regarding input data

F

FX3U-4DA-ADP
Input data is for reading only.
Do not change (rewrite) the input data using sequence program, indicator, or device monitor of the
programming tool.

2. Program Example (For FX3U, FX3UC Series PLC) G

FX3G-1DA-BD
M8000 Stores the channel-1 input data
FNC 12 D8260 D100
MOV of the 1st analog special
Normally adapter in the D100.
ON

FNC 12 Stores the channel-2 input data

D8261 D101 of the 1st analog special
MOV adapter in the D101. H
FX3U-4AD-PT

Even if the input data is not stored in D100 or D101, data registers D8260 or D8261 can be directly used in
the timer/counter set value or in a PID instruction.
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

C-19
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-ADP (4-channel analog Input) 4.5 Averaging Time

4.5 Averaging Time

Setting range: 1 to 4095

Initial value: K1
Numeric data type: Decimal (K)
If the averaging time is set for the 4AD-ADP, the average data will be stored as the input data. The averaging
time can be set for each channel.
Set the averaging time in the following special data registers:
• FX3U, FX3UC Series PLC
Special data register
Description
1st 2nd 3rd 4th
D8264 D8274 D8284 D8294 Averaging time for channel-1 data
D8265 D8275 D8285 D8295 Averaging time for channel-2 data
D8266 D8276 D8286 D8296 Averaging time for channel-3 data
D8267 D8277 D8287 D8297 Averaging time for channel-4 data

• FX3G Series PLC

Special data register
Description
1st 2nd
D8284 D8294 Averaging time for channel-1 data
D8285 D8295 Averaging time for channel-2 data
D8286 D8296 Averaging time for channel-3 data
D8287 D8297 Averaging time for channel-4 data

1. Cautions regarding averaging time setting

• If the averaging time is set to "1", the immediate data is stored to the special data register.
• If the averaging time is set in the range from 2 to 4095, the average value will be calculated to conform to
the set averaging time, and the average value obtained will be stored in the special data register.
• After turning the PLC power on, the current data is stored to special data registers until the number of data
items reaches the set averaging time. After this, the average data will be stored.
• Set the averaging time in the range from 1 to 4095. If the set value is outside the setting range, an error
signal will be output.
→ For a detailed description of the error status, refer to Section 6.5

2. Program Example (For FX3U, FX3UC Series PLC)

M8000 Sets the averaging time for
FNC 12 K1 D8264 channel-1 of the 1st analog
MOV special adapter to 1.
Normally
ON
Sets the averaging time for
FNC 12 K5 D8265 channel-2 of the 1st analog
MOV special adapter to 5.

C-20
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-ADP (4-channel analog Input) 4.6 Error Status

A
4.6 Error Status

Common Items
If an error is detected in the 4AD-ADP, the error status data will be stored in the corresponding special data
register.
The following table shows the special data registers that store the error status data:
• FX3U, FX3UC Series PLC B

FX3UC-4AD
FX3U-4AD
Special data register
Description
1st 2nd 3rd 4th
D8268 D8278 D8288 D8298 Stores the error status data.

C
• FX3G Series PLC

FX3U-4AD-ADP
Special data register
Description
1st 2nd
D8288 D8298 Stores the error status data.
D

FX3G-2AD-BD
Check the ON/OFF status of each bit of the error status data register to check the description of the error.
Errors are assigned to the bits as shown in the following table. Create a program to detect errors.
→ For a detailed description of the error status, refer to Section 6.5.

Bit Description Bit Description

b0 Channel-1 over-scale detection b5 Averaging time setting error E

FX3U-4DA
b1 Channel-2 over-scale detection b6 4AD-ADP hardware error
b2 Channel-3 over-scale detection b7 4AD-ADP communication data error
b3 Channel-4 over-scale detection b8 to b15 Unused
b4 EEPROM error - -
F
1. Caution regarding use of error status data

FX3U-4DA-ADP
If a 4AD-ADP hardware error (b6) or 4AD-ADP communication data error (b7) is detected, it is necessary to
clear the error status with a program at the next power-on of the PLC.
For this reason, be sure to create the following program:
• For FX3G, FX3U, FX3UC Series PLC

M8000
G

FX3G-1DA-BD
MOV D8288 K4M0
Normally ON
M8002 *1
Error status of 3rd analog special adapter
RST M6 b6 = OFF (hardware error)
Initial pulse

RST M7
*1
Error status of 3rd analog status register H
b7 = OFF (communication data error)
FX3U-4AD-PT

MOV K4M0 D8288

-ADP

*1. "1st" for the FX3G PLC. I

• For FX3U, FX3UC Series PLC
FX3U-4AD-PTW

M8002
Error status of 1st analog special adapter
RST D8268.6 b6 = OFF (hardware error)
-ADP

Initial pulse
Error status of 1st analog status register
RST D8268.7
b7 = OFF (communication data error) J
FX3U-4AD-PNK
-ADP

C-21
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-ADP (4-channel analog Input) 4.6 Error Status

2. Program Example 1 (For FX3G, FX3U, FX3UC Series PLC)

M8000
MOV D8288 K4M0

M0
Y000 Detects over-scale in channel 1 of
the 3rd *1 adapter.
M1
Y001 Detects over-scale in channel 2 of
the 3rd *1 adapter.

M2
Y002 Detects over-scale in channel 3 of
the 3rd *1 adapter.
M3
Y003 Detects over-scale in channel 4 of
the 3rd *1 adapter.
M4
Y004 EEPROM error in 3rd *1 adapter

M5
Y005 Averaging time setting error in
3rd *1 adapter
M6
Y006 Hardware error in 3rd *1 4AD-ADP

M7
Y007 Communication data error in 3rd *1
4AD-ADP

*1. "1st" for the FX3G PLC.

3. Program Example 2 (For FX3U, FX3UC Series PLC)

D8268.0
Y000 Detects over-scale in channel 1 of
the 1st adapter.
D8268.1
Y001 Detects over-scale in channel 2 of
the 1st adapter.

D8268.2
Y002 Detects over-scale in channel 3 of
the 1st adapter.
D8268.3
Y003 Detects over-scale in channel 4 of
the 1st adapter.

D8268.4
Y004 EEPROM error in 1st adapter

D8268.5
Y005 Averaging time setting error in
1st adapter

D8268.6
Y006 Hardware error in 1st 4AD-ADP

D8268.7
Y007 Communication data error in 1st
4AD-ADP

C-22
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-ADP (4-channel analog Input) 4.7 Model Code

A
4.7 Model Code

Common Items
Initial value: K1
Numeric data type: Decimal (K)
When the 4AD-ADP is connected, model code "1" is stored in the corresponding special data register.
The following table shows the special data registers that store the model code: B

FX3UC-4AD
FX3U-4AD
• FX3U, FX3UC Series PLC
Special data register
Description
1st 2nd 3rd 4th
D8269 D8279 D8289 D8299 Model code
C

FX3U-4AD-ADP
• FX3G Series PLC
Special data register
Description
1st 2nd
D8289 D8299 Model code D
Use the special data registers above to check whether a 4AD-ADP is connected or not.

FX3G-2AD-BD
1. Program Example (For FX3U, FX3UC Series PLC)

FNC224
LD =
D8269 K1 Y007 Checks the model code of the 1st
analog special adapter
E

FX3U-4DA
F

FX3U-4DA-ADP
G

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

C-23
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-ADP (4-channel analog Input) 4.8 Basic Program Example

4.8 Basic Program Example

Create the following basic program example to read out analog conversion (A/D conversion) data.
• For FX3G, FX3U, FX3UC Series PLC
The following program will set channel 1 of the 3rd*1 adapter to voltage input mode and channel 2 to current
input mode, and will store the converted A/D value of channel-1 data into D100 and that of channel-2 data
into D101.
M8001 Sets the input mode of channel
M8280 1 to the voltage input mode
(0 V to 10 V).
M8000 Sets the input mode of channel
M8281 2 to the current input mode
(4 mA to 20 mA).
M8000
MOV D8288 K4M0

M8002
RST M6 Error status: b6 = OFF
Initial
pulse
RST M7 Error status: b7 = OFF

MOV K4M0 D8288

M8000
FNC 12 Sets the averaging time to "5"
K5 D8284 for channel-1 data.
MOV

FNC 12 Sets the averaging time to "5"

K5 D8285 for channel-2 data.
MOV
M8000
FNC 12 D8280 D100 Stores the A/D converted
MOV channel-1 digital data into D100.

FNC 12 D8281 D101 Stores the A/D converted

MOV channel-2 digital data into D101.

Even if the input data is not stored into D100 or D101, the data registers D8280 or D8281 can be directly used
in the timer/counter setting value or in a PID instruction.
*1. "1st" for the FX3G PLC.

C-24
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-ADP (4-channel analog Input) 4.8 Basic Program Example

A
• For FX3U, FX3UC Series PLC

Common Items
The following program will set channel 1 of the 1st adapter to voltage input mode and channel 2 to current
input mode, and will store the converted A/D value of channel-1 data into D100 and that of channel-2 data
into D101.
M8001 Sets the input mode of channel
M8260 1 to the voltage input mode
(0 V to 10 V).
B

FX3UC-4AD
FX3U-4AD
M8000 Sets the input mode of channel
M8261 2 to the current input mode
(4 mA to 20 mA).
M8002
RST D8268.6 Error status: b6 = OFF

C
RST D8268.7 Error status: b7 = OFF

FX3U-4AD-ADP
M8000
FNC 12 Sets the averaging time to "5"
K5 D8264 for channel-1 data.
MOV

FNC 12 Sets the averaging time to "5"

K5 D8265
MOV for channel-2 data.
D
M8000

FX3G-2AD-BD
FNC 12 D8260 D100 Stores the A/D converted
MOV channel-1 digital data into D100.

FNC 12 D8261 D101 Stores the A/D converted

MOV channel-2 digital data into D101.

Even if the input data is not stored into D100 or D101, the data registers D8260 or D8261 can be directly used E
in the timer/counter setting value or in a PID instruction.

FX3U-4DA
F

FX3U-4DA-ADP
G

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

C-25
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Changing of Input Characteristics
FX3U-4AD-ADP (4-channel analog Input) 5.1 Example: Changing of Voltage Input Characteristics

5. Changing of Input Characteristics

Use the scaling instruction (SCL/FNC 259) for the FX3U/FX3UC Series PLC to change the input
characteristics. FX3G Series PLCs do not support the scaling instruction. Use sequence programs to change
the input characteristics.
→ For a detailed description of scaling instruction, refer to the FX3G/FX3U/FX3UC Series Programming
Manual - Basic & Applied Instruction Edition.

5.1 Example: Changing of Voltage Input Characteristics

In the example explained in this section, the voltage input data "1 to 5 V" (Digital output value: 400 to 2000) is
changed to the digital output value "0 to 10000".

1. Input characteristics
Voltage input characteristics Digital output value to be changed
(product specifications) Y-axis
Digital output

4000 10000

Digital output to
be calculated
(D110)
2000

400

0 X-axis
1V 5V 10V 0 400(1V) 2000(5V)
Analog input
Digital value actually obtained
by A/D conversion

C-26
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Changing of Input Characteristics
FX3U-4AD-ADP (4-channel analog Input) 5.1 Example: Changing of Voltage Input Characteristics

A
2. Example of program 1 (For FX3U, FX3UC Series PLC)

Common Items
• For example, create the following program to change the digital input data of the 1st analog special
adapter:
M8001
M8260 Sets the input mode of channel 1 to the voltage input mode

M8002
(0 V to 10 V)
B

FX3UC-4AD
FX3U-4AD
RST D8268.6 Error status: b6 = OFF

RST D8268.7 Error status: b7 = OFF

M8000
FNC 12 K1 D8264 Sets the averaging time to "1" for the channel-1 data C
MOV

FX3U-4AD-ADP
M8002 FNC 12 K2 D50 Program for setting scaling instruction data table
MOV
Item Description Value Device
FNC 12 K400 D51 Number of points Sets the number of points 2 D50
MOV X-
Start coordinate
A/D converted digital value
start point data
400 D51 D
FNC 12 K0 D52 point

FX3G-2AD-BD
Y- Digital output value of changed
MOV coordinate X-axis value start point 0 D52

FNC 12 X- A/D converted digital value end 2000 D53

K2000 D53 End coordinate point data
MOV
point Y- Digital output value of changed 10000
X-axis value end point D54
coordinate
FNC 12
MOV
K10000 D54
E

FX3U-4DA
M8000 FNC 259
D8260 D50 D100 The scaling instruction operation results will be stored in D100.
SCL

FX3U-4DA-ADP
G

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

C-27
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Changing of Input Characteristics
FX3U-4AD-ADP (4-channel analog Input) 5.1 Example: Changing of Voltage Input Characteristics

3. Example of program 2 (For FX3G Series PLC)

• For example, create the following program to change the digital input data (D110) of the 1st analog special
adapter:
M8001
M8280 Sets the input mode of channel 1 to the
voltage input mode
M8000 (0V to 10V).
FNC 12 D8288 K4M0
MOV
M8002
RST M6 Error status: b6 = OFF

RST M7 Error status: b7 = OFF

FNC 12 K4M0 D8288

MOV
M8000 Sets the averaging scaling to "1"
FNC 12
K1 D8284 for the channel-1 data.
MOV
M8000
FNC 12 D8280 D110
MOV

FNC 230 FNC 237 Check to make sure the digital

D110 K400 D110 K2000 M10
LD>= AND<= value (D110) is in range.
M10 FNC 21 D110 K400 D111
SUB
Calculation for changing input
FNC 22 D111 K10000 D112 characteristics.
MUL
Stores the operation result in D100.
FNC 23 D112 K1600 D100
DDIV

4. Cautions regarding programming

• GX Developer version 8.13P or later supports scaling instruction (SCL/FNC 259).
• If the A/D converted digital value is out of the data table range specified by the scaling instruction (SCL/
FNC 259), the FX Series PLC will detect an operation error (error code: K6706).

C-28
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 6 Troubleshooting
FX3U-4AD-ADP (4-channel analog Input) 6.1 PLC Version Number Check

Common Items
6. Troubleshooting
This chapter describes troubleshooting methods and error statuses. B
If the A/D conversion data is not input, or if the proper digital value is not input, check the following items:

FX3UC-4AD
FX3U-4AD
• PLC version number
• Wiring
• Special devices
• Programs C
• Error status

FX3U-4AD-ADP
6.1 PLC Version Number Check
• Any versions (from Ver.2.20 (initial version) to the latest version) of the FX3U Series are compatible. D
• Check the version number of the FX3UC Series PLC. The version number should be 1.20 or later.

FX3G-2AD-BD
• Any versions (from Ver.1.00 (initial version) to the latest version) of the FX3G Series are compatible.
→ For a detailed description of the version number check method, refer to Section 1.3.

6.2 Wiring Check E

FX3U-4DA
Check the following items for wiring:

1. Power
The 4AD-ADP needs driving power. Verify that the power supply line is properly connected. Also check that
the POWER indicator lamp of the 4AD-ADP is on.
F
2. Analog input line

FX3U-4DA-ADP
Use 2-core twisted shielded pair cable for the analog input line. In addition, be sure to separate the analog
input line from other power lines or inductive lines.

3. Use of current input mode

To use the current input mode for a channel, be sure to shortcircuit the line between the V + terminal and the
I + terminal ( : channel number) of the channel. If the line is not shortcircuited, data will not be converted
G

FX3G-1DA-BD
into correct digital data.
→ For a detailed description of wiring, refer to Chapter 3.

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

C-29
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 6 Troubleshooting
FX3U-4AD-ADP (4-channel analog Input) 6.3 Special Device Check

6.3 Special Device Check

Check whether the special devices for the 4AD-ADP are being used correctly:

1. Input mode switching

Check that the special device for switching the input mode is set correctly.
Turn off the device to set the input mode to the voltage input mode. Turn on the device to set the input mode
to the current input mode.

2. Input data
Verify that the special device of the selected channel is correctly selected. This special device should be
selected depending on the connecting position and the channel.

3. Averaging time
Check that the set averaging time is within the specified range. The averaging time should be set in the range
from 1 to 4095. If the set averaging time is outside the specified range, an error occurs.

4. Error status
Check that no error is detected in the 4AD-ADP.
If an error is detected, check the details of the error, and then check the wiring and programs.
→ For a detailed description of special devices, refer to Chapter 4.

6.4 Program Check

Check the following items for the program:

1. Clearing of error status at power on

When the power is turned off and then on again, the error status should be cleared (b6 and b7 should turn off)
using the program.

2. Check of storage devices

Verify that different values are not being stored in the same device by other parts of the program.

C-30
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 6 Troubleshooting
FX3U-4AD-ADP (4-channel analog Input) 6.5 Error Status Check

A
6.5 Error Status Check

Common Items
If an error occurs in the 4AD-ADP, the corresponding bit will turn on.

Bit Description Bit Description

b0 Channel-1 over-scale detection b5 Averaging time setting error B

FX3UC-4AD
FX3U-4AD
b1 Channel-2 over-scale detection b6 4AD-ADP hardware error
b2 Channel-3 over-scale detection b7 4AD-ADP communication data error
b3 Channel-4 over-scale detection b8 to b15 Unused
b4 EEPROM error - -
To solve the problem, refer to the troubleshooting method described below: C

FX3U-4AD-ADP
1. Over-scale detection (b0 to b3)
1) Description of error
The input analog value (voltage or current value) is outside the specified range.
The digital value is out of the range specified for the voltage input mode (0 to 4080) or outside the range
specified for the current input mode (0 to 1640). D
2) Remedy

FX3G-2AD-BD
Check that the input analog value is within the specified range. Also check the wiring.

2. EEPROM error (b4)

1) Description of error
The adjustment data which was set in the EEPROM before delivery from our factory cannot be read out E
properly or has been destroyed.

FX3U-4DA
2) Remedy
Please contact the nearest Mitsubishi Electric distributor office.

3. Averaging time setting error (b5)

1) Description of error F
The averaging time set for one of the channels (channels 1 to 4) is outside the specified range: 1 to 4095.

FX3U-4DA-ADP
2) Remedy
Check that the averaging time is set correctly for each channel.

4. 4AD-ADP error (b6)

1) Description of error G
The 4AD-ADP is not operating properly.

FX3G-1DA-BD
2) Remedy
Check that the 24V DC power is properly supplied to the 4AD-ADP. Also check that the 4AD-ADP is
correctly connected to the PLC.
If the problem cannot be solved even after the above check, please contact the nearest Mitsubishi
Electric distributor office. H
FX3U-4AD-PT

5. 4AD-ADP communication error (b7)

1) Description of error
A communication error is detected between the 4AD-ADP and the PLC.
-ADP

2) Remedy
Check that the 4AD-ADP is correctly connected to the PLC. I
If the problem cannot be solved even after the above check, please contact the nearest Mitsubishi
FX3U-4AD-PTW

Electric distributor office.

-ADP

J
FX3U-4AD-PNK
-ADP

C-31
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 6 Troubleshooting
FX3U-4AD-ADP (4-channel analog Input) 6.5 Error Status Check

MEMO

C-32
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition
FX3G-2AD-BD (2-channel analog Input)

Common Items
B

FX3UC-4AD
FX3U-4AD
FX3G/FX3U/FX3UC Series Programmable
Controllers C

FX3U-4AD-ADP
User's Manual [Analog Control Edition]
FX3G-2AD-BD (2-channel analog Input)
D

FX3G-2AD-BD
E

FX3U-4DA
F

FX3U-4DA-ADP
G

FX3G-1DA-BD

H
FX3U-4AD-PT

Foreword
-ADP

This manual describes the specifications, wiring, and operation methods for the FX3G-2AD-BD analog input
expansion board (2-channel analog input) and should be read and understood before attempting to install or
use the unit. I
FX3U-4AD-PTW

Store this manual in a safe place so that you can take it out and read it whenever necessary. Always forward
it to the end user.
-ADP

This manual confers no industrial property rights or any rights of any other kind, nor does it confer any patent
licenses. Mitsubishi Electric Corporation cannot be held responsible for any problems involving industrial property
rights which may occur as a result of using the contents noted in this manual. J
FX3U-4AD-PNK

© 2005 MITSUBISHI ELECTRIC CORPORATION

-ADP

D-1
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition
FX3G-2AD-BD (2-channel analog Input)

D-2
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 1 Outline
FX3G-2AD-BD (2-channel analog Input) 1.1 Outline of Functions

Common Items
1. Outline
This chapter outlines the FX3G-2AD-BD (referred to as the 2AD-BD). B

FX3UC-4AD
FX3U-4AD
1.1 Outline of Functions
The FX3G-2AD-BD is an analog expansion board. Connect the FX3G-2AD-BD to the FX3G Series PLC to read
2 channels of voltage/current data.
C

FX3U-4AD-ADP
1) Up to 2*1 2AD-BD units can be connected to the FX3G Series PLC.
(including the other analog expansion board, analog special adapters).
2) Either "voltage input" or "current input" can be specified for each channel.
3) A/D conversion data of each channel will be automatically written to the special data register of the FX3G
Series PLC. D

FX3G-2AD-BD
System Point and section to be
referred to

2*1 maximum

( including other analog expansion boards,

analog special adapters.
(
FX3G Series PLC …… Number of connectable
units E
2nd 1st

FX3U-4DA
board board
To check the connectable
…… PLC model number, refer
to Section 1.3.

Connected to the option connector 1 F

FX3U-4DA-ADP
Connected to the option connector 2
Analog data
…… For a detailed
description of wiring,
refer to Chapter 3.

G
Flowmeter, pressure sensor, etc.

For FX3G Series PLC FX3G-1DA-BD

Contents …… For a detailed description
•Analog data
Transfer direction
1st board
Special devices
M/D8260 to M/D8269
of special devices, refer to
Chapter 4. H
FX3U-4AD-PT

•Switching of input mode 2nd board M/D8270 to M/D8279 For a detailed description
•Setting of averaging of a basic program, refer to
time Section 4.8.
-ADP

Refer to the system configuration shown in the User's Manual - Hardware Edition to check the number of connectable units
and to configure the entire system.
I
FX3U-4AD-PTW

*1.Only 1 analog board can be connected to the 14-point and 24-point type main unit.
-ADP

J
FX3U-4AD-PNK
-ADP

D-3
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 1 Outline
FX3G-2AD-BD (2-channel analog Input) 1.2 Setup Procedure Before Starting Operation

1.2 Setup Procedure Before Starting Operation

Before starting analog input using the 2AD-BD, follow the procedure below to set up the system:

FX3G-2AD-BD

Refer to Chapter 1.

Outline Outline of system:

• Compatible PLC version number
• Compatible programming tool version number
Refer to Chapter 2.

Specifications check Specifications:

• Operation environment
• Performance specifications
Refer to the • Input characteristics
common pages.

System configuration and selection System configuration:

(Refer to the common pages for analog control.)
• Selection of units
Refer to Chapter 3.

Wiring Wiring:
• Selection of sensor cable
• Power supply line
Refer to Chapter 4. • Analog input line

Programming Programming:
• Details of special devices
• Examples of basic programs
Refer to Chapter 5.

Changing of input characteristics Method of input characteristics change

If the error status data or the input analog value is

abnormal, refer to Chapter 6 "Troubleshooting."

D-4
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 1 Outline
FX3G-2AD-BD (2-channel analog Input) 1.3 Connectable PLCs and Version Number

A
1.3 Connectable PLCs and Version Number

Common Items
The 2AD-BD is compatible with the following PLC.

Compatible PLC Version number Date of production B

FX3G Series PLC Ver.1.10 or later After October 2008 (initial production)

FX3UC-4AD
FX3U-4AD
1. Version check
Special data register D8001 contains information for determining the PLC version number.
C

FX3U-4AD-ADP
D8001 2 6 1 1 0
PLC type and
version number Version data (Example: Ver. 1.10)
PLC type (Example: 26 = FX3G series)

D
2. How to look at the manufacturer's serial number

FX3G-2AD-BD
The year and month of production of the product can be seen from the manufacturer's serial number
"SERIAL" indicated on the label adhered to the right side of the product.

Example: FX3G-40MT/ES (manufacturer's serial number: 8X0001)

PROGRAMMABLE
E
MITSUBISHI

FX3U-4DA
CONTROLLER
Right side
MODEL FX3G-40MT/ES
100-240VAC 50/60Hz 37W
OUT:5~30VDC 0.5A

SERIAL 8X0001
F

FX3U-4DA-ADP
MITSUBISHI ELECTRIC CORPORATION
MADE IN JAPAN

8 X 0 0 0 1

Control number
Month (Example: Oct.):(1 to 9 = January to September, G
X = October, Y = November, Z = December)

FX3G-1DA-BD
Year (Example: 2008): Last digit of year

1.4 Compatible Programming Tool Version Number

H
Use the programming tool with following version numbers to create programs for the 2AD-BD:
FX3U-4AD-PT

Software Version number Remarks

GX Developer
-ADP

• SW D5C-GPPW-J (Ver.8.72A or later) When selecting a model, select FX3G.

• SW D5C-GPPW-E
I
FX3U-4AD-PTW

If a programming tool with the wrong version number is used, programming will not be possible.
-ADP

J
FX3U-4AD-PNK
-ADP

D-5
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 Specifications
FX3G-2AD-BD (2-channel analog Input) 2.1 Generic Specifications

2. Specifications
This chapter describes the general and performance specifications for the 2AD-BD.

2.1 Generic Specifications

Item Specifications
Ambient 0 to 55°C (32 to 131°F) when operating
temperature -25 to 75°C (-13 to 167°F) when stored
Relative
5 to 95%RH (no condensation) when operating
humidity
Frequency Acceleration Half amplitude
(Hz) (m/s2) (mm)
Tests 10 times in each
Vibration 10 - 57 - 0.035 direction (X-, Y-, and Z-
DIN Rail Mounting
resistance 57 - 150 4.9 - axis directions) (Total:
80 min, each)
10 to 57 − 0.075
Direct Mounting
57 to 150 9.8 −
Shock
147 m/s2 Acceleration, Action time: 11ms, 3 times by half-sine pulse in each direction X, Y, and Z
resistance
Noise Using noise simulator of:
resistance Noise voltage: 1,000Vp-p / Noise width: 1µs / Rise: 1ns / Cycle: 30 to 100Hz
Class D grounding (grounding resistance: 100 Ω or less)
Grounding
<Common grounding with a heavy electrical system is not allowed.>*1
Working
Free from corrosive or flammable gas and excessive conductive dusts
environment
Working
< 2000m*2
altitude

*1.
PLC Other PLC Other PLC Other
equipment equipment equipment

Independent grounding Shared grounding Common grounding

Best condition Good condition Not allowed

→ For a detailed description of the grounding, refer to Section 3.5.

*2. If the pressure is higher than the atmospheric pressure, do not use the 2AD-BD.
The 2AD-BD may malfunction.

D-6
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 Specifications
FX3G-2AD-BD (2-channel analog Input) 2.2 Performance Specifications

A
2.2 Performance Specifications

Common Items
Specifications
Item
Voltage input Current input B

FX3UC-4AD
FX3U-4AD
Analog input 0V to 10V DC 4mA to 20mA DC
range (Input resistance: 198.7 kΩ) (Input resistance: 250 Ω)
Absolute input
-0.5V, +15V -2mA, +30mA
maximum
Digital output 12 bits, binary 11 bits, binary
Resolution 2.5mV (10V/4000) 8µA (16mA/2000)
C

FX3U-4AD-ADP
• ±0.5% (±50mV) for 10V full scale • ±0.5% (±80µA) for 16mA full scale
(when ambient temperature is 25°C ± 5°C) (when ambient temperature is 25°C ± 5°C)
Total accuracy
• ±1.0% (±100mV) for 10V full scale • ±1.0% (±160µA) for 16mA full scale
(when ambient temperature is 0°C to 55°C) (when ambient temperature is 0°C to 55°C)
A/D conversion
time
180 µs (The data will be updated at every scan time.)
→ For a detailed description of data update, refer to Section 2.4.
D

FX3G-2AD-BD
4080 2040

4000 2000
E
Input Digital output

FX3U-4DA
Digital output

characteristics

0
Analog input
10V 10.2V 0 4mA
Analog input
20mA 20.32mA
F

FX3U-4DA-ADP
• The analog input area is not insulated from the PLC.
Insulation method
• Channels are not insulated from each other.
Number of I/O
0 point (This number is not related to the maximum number of input/output points of the PLC.)
points occupied
G

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

D-7
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 Specifications
FX3G-2AD-BD (2-channel analog Input) 2.3 A/D Conversion Time

2.3 A/D Conversion Time

This section describes the A/D conversion time.

1. A/D conversion and special data register update timing

A/D conversion is performed at every scan time of the PLC.
During execution of END instruction, the PLC performs A/D conversion, reads out the A/D converted data,
and then writes the data in the special data registers.

FX3G Series PLC

Sequence Program

END instruction

A/D conversion Digital value A/D conversion Digital value

start command writing start command writing

A/D A/D
conversion conversion
180µs 180µs
/2ch /2ch

FX3G-2AD-BD FX3G-2AD-BD
1st 2nd

2. A/D conversion during PLC STOP

Even if the PLC is stopped, A/D conversion will be performed and the special data registers will be updated.

3. If two analog expansion boards are connected

During execution of the END instruction, data will be read out from all the connected boards (in the order of
1st board → 2nd board).

4. A/D conversion speed (data update time)

During execution of END instruction, the A/D converted data of all 2 channels will be read out in 180µs, and
the data read out will be written to the special data registers.
END instruction execution time will be "180µs × number of connected analog boards."

D-8
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3G-2AD-BD (2-channel analog Input)

Common Items
3. Wiring
This chapter describes the 2AD-BD wiring. B
Observe the following caution to wire the 2AD-BD.

FX3UC-4AD
FX3U-4AD
WIRING PRECAUTIONS

• Make sure to cut off all phases of the power supply externally before attempting wiring work.
Failure to do so may cause electric shock or damages to the product. C

FX3U-4AD-ADP
WIRING PRECAUTIONS

• Connect the DC power supply wiring to the dedicated terminals described in this manual.
If an AC power supply is connected to a DC input/output terminal or DC power supply terminal, the PLC will be
burnt out.
D

FX3G-2AD-BD
• Do not wire vacant terminals externally.
Doing so may damage the product.
• Perform class D grounding (grounding resistance: 100Ω or less) to the grounding terminal on the main unit.
Do not use common grounding with heavy electrical systems.
• When drilling screw holes or wiring, make sure cutting or wire debris does not enter the ventilation slits.
Failure to do so may cause fire, equipment failures or malfunctions. E
• Make sure to observe the following precautions in order to prevent malfunctions under the influence of noise:

FX3U-4DA
- Do not bundle the power line or twisted shielded cable together with or lay it close to the main circuit, high-
voltage line, or load line.
Otherwise, noise disturbance and/or surge induction are likely to take place. As a guideline, lay the control line
at least 100mm (3.94") or more away from the main circuit, high-voltage line, or load line.
- Ground the shield of the analog input/output cable at one point on the signal receiving side.
However, do not use common grounding with heavy electrical systems. F
• Make sure to properly wire to the European terminal board in accordance with the following precautions.

FX3U-4DA-ADP
Failure to do so may cause electric shock, a short-circuit, wire breakage, or damage to the product.
- The disposal size of the cable end should be 9 mm (0.35").
- Tightening torque should be between 0.22 to 0.25 N•m.
- Twist the end of strand wire and make sure there are no loose wires.
- Do not solder-plate the electric wire ends.
- Do not connect more than the specified number of wires or electric wires of unspecified size. G
- Affix the electric wires so that neither the terminal block nor the connected parts are directly stressed.

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

D-9
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3G-2AD-BD (2-channel analog Input) 3.1 Terminal Layout

3.1 Terminal Layout

The terminals of the 2AD-BD are arranged as follows:

Signal V1+ I1+ V2+ I2+ VI-

Channel 1 Channel 2 COM
Application
analog input analog input terminal

D-10
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3G-2AD-BD (2-channel analog Input) 3.2 Applicable Cables and Terminal Tightening Torque

A
3.2 Applicable Cables and Terminal Tightening Torque

Common Items
Use the following cables to connect with the counterpart equipment. Terminate the cable ends as shown
below.

1. Cables B

FX3UC-4AD
FX3U-4AD
Applicable cable and tightening torque
Wire size (stranded/ Tightening
Termination
single-wire) torque
0.3mm2 to 0.5mm2 • To connect a stranded cable, peel the cover off the cable
Single-wire
(AWG22 to 20) and then twist the core before connection.
• To connect a single-wire cable, just strip the cover off the
C
2-wire 2
0.3mm (AWG22)

FX3U-4AD-ADP
cable before connection.
0.22N•m to • Rod terminal with insulation sleeve
Rod terminal 0.3mm2 to 0.5mm2 0.25N•m (recommended terminal)
with (AWG22 to 20) AI 0.5-8WH : Manufactured by Phoenix Contact
insulation (Refer to the rod terminal
• Caulking tool
sleeve external view shown in the
following figure.)
CRIMPFOX ZA 3 : Manufactured by Phoenix Contact D
(or CRIMPFOX UD 6 : Manufactured by Phoenix Contact)

FX3G-2AD-BD
2. Termination of cable end
To terminate the cable, treat the stranded/single-wire directly or use a rod terminal with insulation sleeve.
• To directly terminate the end of a stranded/single-wire cable:
- Twist the end of the stranded cable so that the "barbed wires"
Termination of cable end
E
cannot protrude.

FX3U-4DA
- Do not solder-plate the end of the cable.
9mm
(0.35")
• To terminate cable end using a rod terminal with insulation sleeve: Insulation sleeve Contact area
If the cable cover is too thick, it may be difficult to insert the cable into
the insulation sleeve. For this reason, select an appropriate cable while
(Crimp area) F

FX3U-4DA-ADP
referring to the external view. 8mm (0.31")
Manufacturer Model Caulking tool 2.6mm 14mm
(0.1")
CRIMPFOX ZA 3 (0.55")
Phoenix Contact AI 0.5-8WH
(or CRIMPFOX UD 6)

3. Tool
G

FX3G-1DA-BD
• To tighten terminals, use a small-sized screwdriver whose head is straight and is not widened as shown in
the figure to the right.

Note:
If the diameter of screwdriver grip is too small, tightening torque will not
be able to be achieved. Use the following recommended screwdriver or
The head
should be
H
an appropriate replacement (grip diameter: approximately 25mm).
FX3U-4AD-PT

straight.

Manufacturer Model
Phoenix Contact SZS 0.4×2.5
-ADP

0.4mm 2.5mm
(0.01") (0.09")

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

D-11
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3G-2AD-BD (2-channel analog Input) 3.3 Analog Input Line

3.3 Analog Input Line

For analog input, "voltage input" or "current input" can be selected for each channel.

If current input selected: 2AD-BD

Terminal
block
*1 110kΩ ch
V +
*2 250Ω
I +
88.7kΩ
Class-D
grounding
If voltage input is selected:

*1 110kΩ ch
V +
250Ω
I + 88.7kΩ
Class-D
grounding
VI-
*3

V +, I +, ch : represents the channel number.

*1. Use the 2-core shielded twisted pair cable for the analog input lines, and separate the analog input
lines from other power lines or inductive lines.
*2. If "current input" is selected, be sure to short the line between the V + terminal and the I + terminal.
( : Channel number).
*3. Make sure to short-circuit the "V +" and "VI-" terminals when ch is not used.

3.4 Grounding
Grounding should be performed as stated below.
• The grounding resistance should be 100Ω or less.
• Independent grounding should be performed for best results.
When independent grounding is not performed, perform "shared grounding" as shown in the following
figure.
→ For details, refer to the User’s Manual - Hardware Edition of the PLC Series.

PLC Other PLC Other PLC Other

equipment equipment equipment

Independent grounding Shared grounding Common grounding

Best condition Good condition Not allowed

• The grounding wire size should be AWG22 to 20 (0.3 to 0.5 mm2).

• The grounding point should be close to the PLC, and all grounding wires should be as short as possible.

D-12
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3G-2AD-BD (2-channel analog Input) 4.1 Loading of A/D Conversion Data

Common Items
4. Programming
This chapter describes how to create programs that can read analog data using the 2AD-BD. B

FX3UC-4AD
FX3U-4AD
4.1 Loading of A/D Conversion Data
1) The input analog data will be converted into digital data and then stored in the special devices of the FX3G
Series PLC.
C
2) If the data is stored in the special devices, the averaging time can be set, and the input mode can be

FX3U-4AD-ADP
specified.
3) Special auxiliary relays (10 points) and special data registers (10 points) are assigned respectively to the
analog expansion board connected to the option connector 1 and the analog expansion board connected
to the option connector 2 in this order.
→ For a detailed description of special device assignment, refer to Section 4.2. D
• FX3G Series PLC

FX3G-2AD-BD
FX3G Series PLC

Sequence Program

FX3U-4DA
Special auxiliary relays: Special auxiliary relays:
M8260 to M8269 M8270 to M8279
Special data register: Special data register:
D8260 to D8269 D8270 to D8279

Option connector 1 Option connector 2

A/D A/D
F

FX3U-4DA-ADP
FX3G-2AD-BD FX3G-2AD-BD
1st 2nd*1

The analog expansion board connected to the option connector 1 is regarded as the 1st unit, and the
analog expansion board connected to the option connector 2 is regarded as the 2nd unit.
*1. The second analog expansion board is not available in the 14-point and 24-point type main unit. G

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

D-13
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3G-2AD-BD (2-channel analog Input) 4.2 List of Special Devices

4.2 List of Special Devices

If the 2AD-BD is connected, special devices will be assigned automatically as shown in the following table:
R: Read / W: Write
Device number
Special device Description Attribute Reference
1st board 2nd board
M8260 M8270 Switches the input mode of channel 1 R/W
Section 4.3
M8261 M8271 Switches the input mode of channel 2 R/W
Special auxiliary relay
M8262 to M8272 to
Unused (Do not use.) - -
M8269 M8279
D8260 D8270 Channel-1 input data R
Section 4.4
D8261 D8271 Channel-2 input data R
D8262 D8272
Unused (Do not use.) - -
D8263 D8273
Averaging time for channel-1 (Setting
D8264 D8274 R/W
range: 1 to 4095)
Special data register Section 4.5
Averaging time for channel-2 (Setting
D8265 D8275 R/W
range: 1 to 4095)
D8266 D8276
Unused (Do not use.) - -
D8267 D8277
D8268 D8278 Error status R/W Section 4.6
D8269 D8279 Model code = 3 R Section 4.7

4.3 Switching of Input Mode

Turn the special auxiliary relay on/off to switch the input mode of 2AD-BD between the current input mode
and the voltage input mode.
To switch the input mode, use the following special auxiliary relays:
Special auxiliary relay
Description
1st board 2nd board
M8260 M8270 Switches the input mode of channel 1 OFF: Voltage input
M8261 M8271 Switches the input mode of channel 2 ON: Current input

1. Program Example
To switch the channel input mode, create a sequence program as follows:
1) To switch the input mode of channel 2) To switch the input mode of channel 2
1 of the 1st analog board to the voltage of the 1st analog board to the current
input mode: input mode:
M8001 M8000
M8260 M8261
Normally OFF Normally ON

D-14
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3G-2AD-BD (2-channel analog Input) 4.4 Input Data

A
4.4 Input Data

Common Items
Numeric data type: Decimal (K)
The data converted by the 2AD-BD will be stored in the special data registers.
The special data registers that store the input data are shown in the following table:
B

FX3UC-4AD
FX3U-4AD
Special data register
Description
1st board 2nd board
D8260 D8270 Stores the channel-1 input data
D8261 D8271 Stores the channel-2 input data
C
The converted A/D immediate data or averaged data (data average conforming to the specified averaging

FX3U-4AD-ADP
time) will be stored in the above data registers as the input data.
→ For a detailed description of the averaging time, refer to Section 4.5.

1. Caution regarding input data

Input data is for reading only.
Do not change (rewrite) the input data using sequence program, indicator, or device monitor of the
D

FX3G-2AD-BD
programming tool.

2. Program Example
M8000
FNC 12 D8260 D100 Stores the channel-1 input data
of the 1st analog board in the D100.
E
MOV

FX3U-4DA
Normally
ON

FNC 12 Stores the channel-2 input data

D8261 D101 of the 1st analog board in the D101
MOV

Even if the input data is not stored in D100 or D101, data registers D8260 or D8261 can be directly used in
the timer/counter set value or in a PID instruction. F

FX3U-4DA-ADP
G

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

D-15
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3G-2AD-BD (2-channel analog Input) 4.5 Averaging Time

4.5 Averaging Time

Setting range: 1 to 4095

Initial value: K1
Numeric data type: Decimal (K)
If the averaging time is set for the 2AD-BD, the average data will be stored as the input data. The averaging
time can be set for each channel.
Set the averaging time in the following special data registers:
Special data register
Description
1st board 2nd board
D8264 D8274 Averaging time for channel-1 data
D8265 D8275 Averaging time for channel-2 data

1. Cautions regarding averaging time setting

• If the averaging time is set to "1", the immediate data is stored to the special data register.
• If the averaging time is set in the range from 2 to 4095, the average value will be calculated to conform to
the set averaging time, and the average value obtained will be stored in the special data register.
• After turning the PLC power on, the current data is stored to special data registers until the number of data
items reaches the set averaging time. After this, the average data will be stored.
• Set the averaging time in the range from 1 to 4095. If the set value is outside the setting range, an error
signal will be output.
→ For a detailed description of the error status, refer to Section 6.5

2. Program Example
M8000 Sets the averaging time for
FNC 12 K1 D8264 channel-1 of the 1st analog
MOV board to 1.
Normally
ON
Sets the averaging time for
FNC 12 K5 D8265 channel-2 of the 1st analog
MOV board to 5.

D-16
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3G-2AD-BD (2-channel analog Input) 4.6 Error Status

A
4.6 Error Status

Common Items
If an error is detected in the 2AD-BD, the error status data will be stored in the corresponding special data
register.
The following table shows the special data registers that store the error status data:
B
Special data register

FX3UC-4AD
FX3U-4AD
Description
1st board 2nd board
D8268 D8278 Stores the error status data.

Check the ON/OFF status of each bit of the error status data register to check the description of the error.
Errors are assigned to the bits as shown in the following table. Create a program to detect errors. C
→ For a detailed description of the error status, refer to Section 6.5.

FX3U-4AD-ADP
Bit Description Bit Description
b0 Channel-1 over-scale detection b5 Averaging time setting error
b1 Channel-2 over-scale detection b6 2AD-BD hardware error
b2 Unused b7 2AD-BD communication data error
D

FX3G-2AD-BD
b3 Unused b8 to b15 Unused
b4 EEPROM error - -

1. Caution regarding use of error status data

If a 2AD-BD hardware error (b6) or 2AD-BD communication data error (b7) is detected, it is necessary to clear E
the error status with a program at the next power-on of the PLC.

FX3U-4DA
For this reason, be sure to create the following program:

M8000
FNC 12 D8268 K4M0
MOV
Normally ON
M8002
F
Error status of 1st analog board

FX3U-4DA-ADP
RST M6 b6 = OFF (hardware error)
Initial pulse

RST M7 Error status of 1st analog board

b7 = OFF (communication data error)

FNC 12
MOV
K4M0 D8268 G

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

D-17
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3G-2AD-BD (2-channel analog Input) 4.6 Error Status

2. Program Example

M8000
MOV D8268 K4M0
Normally
ON

M0
Y000 Detects over-scale in channel 1 of
the 1st board.
M1
Y001 Detects over-scale in channel 2 of
the 1st board.
M4
Y004 EEPROM error in 1st board

M5
Y005 Averaging time setting error in
1st board
M6
Y006 Hardware error in 1st 2AD-BD

M7
Y007 Communication data error in 1st
2AD-BD

D-18
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3G-2AD-BD (2-channel analog Input) 4.7 Model Code

A
4.7 Model Code

Common Items
Initial value: K3
Numeric data type: Decimal (K)
When the 2AD-BD is connected, model code "3" is stored in the corresponding special data register.
The following table shows the special data registers that store the model code: B

FX3UC-4AD
FX3U-4AD
Special data register
Description
1st board 2nd board
D8269 D8279 Model code

Use the special data registers above to check whether a 2AD-BD is connected or not.
C

FX3U-4AD-ADP
1. Program Example

FNC224 D8269 K3 Y007 Checks the model code of the 1st

LD = analog board
D

FX3G-2AD-BD
4.8 Basic Program Example
Create the following basic program example to read out analog conversion (A/D conversion) data.
The following program will set the 1st board to voltage input mode and channel 2 to current input mode, and
will store the converted A/D value of channel-1 data into D100 and that of channel-2 data into D101.
E

FX3U-4DA
M8001 Sets the input mode of the 1st board
M8260 to the voltage input mode
Normally (0 V to 10 V).
OFF
M8000 Sets the input mode of the 2nd board
F

FX3U-4DA-ADP
M8261 to the current input mode
Normally (4 mA to 20 mA).
ON
M8000
FNC 12 D8268 K4M0

M8002
MOV
G

FX3G-1DA-BD
RST M6 Error status: b6 = OFF
Initial
pulse
RST M7 Error status: b7 = OFF

FNC 12
MOV
K4M0 D8268 H
FX3U-4AD-PT

M8000
FNC 12 Sets the averaging time to "5"
K5 D8264 for channel-1 data.
MOV
-ADP

FNC 12 Sets the averaging time to "5"

K5 D8265 for channel-2 data.
MOV
M8000
FNC 12 D8260 D100 Stores the A/D converted
I
FX3U-4AD-PTW

MOV channel-1 digital data into D100.

FNC 12 D8261 D101 Stores the A/D converted

MOV channel-2 digital data into D101.
-ADP

Even if the input data is not stored into D100 or D101, the data registers D8260 or D8261 can be directly used
in the timer/counter setting value or in a PID instruction.
J
FX3U-4AD-PNK
-ADP

D-19
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Changing of Input Characteristics
FX3G-2AD-BD (2-channel analog Input) 5.1 Example: Changing of Voltage Input Characteristics

5. Changing of Input Characteristics

The input characteristics can be changed using sequence programs in FX3G Series PLCs.

5.1 Example: Changing of Voltage Input Characteristics

This section describes an example of a program that can change the digital output range of 400 to 2000
(when the voltage input is 1 to 5V) to the digital output range of 0 to 10000.

1. Input characteristics
Voltage input characteristics Digital output value to be changed
(product specifications) Y-axis
Digital output

4000 10000

Digital output to
be calculated
(D110)
2000

400

0 X-axis
1V 5V 10V 0 400(1V) 2000(5V)
Analog input
Digital value actually obtained
by A/D conversion

2. Example of program
For example, create the following program to change the digital input data of the 1st analog board:
M8001
M8260 Sets the input mode of channel 1 to the
Normally OFF voltage input mode (0V to 10V).
M8000 FNC 12 D8268 K4M0
Normally ON MOV
M8002
RST M6 Error status : b6=OFF
Initial pulse

RST M7 Error status : b7=OFF

FNC 12 K4M0 D8268

MOV
M8000
FNC 12 Sets the averaging scaling to "1" for
K1 D8264
MOV the channel-1 data.
M8000 FNC 12
D8260 D110
MOV

FNC 230 FNC 237 D110 K2000 Check to make sure the digital
D110 K400 M10
LD>= AND<= value (D110) is in range.
M10 FNC 21
D110 K400 D111
SUB

FNC 22 Calculation for changing input

D111 K10000 D112 characteristics.
MUL
Stores the operation result in D100.
FNC 23
D112 K1600 D100
DDIV

D-20
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 6 Troubleshooting
FX3G-2AD-BD (2-channel analog Input) 6.1 PLC Version Number Check

Common Items
6. Troubleshooting
This chapter describes troubleshooting methods and error statuses. B
If the A/D conversion data is not input, or if the proper digital value is not input, check the following items:

FX3UC-4AD
FX3U-4AD
• PLC version number
• Installation
• Wiring
• Special devices C
• Programs

FX3U-4AD-ADP
• Error status

6.1 PLC Version Number Check

D
• Check the version number of the FX3G Series PLC. The version number should be 1.10 or later.

FX3G-2AD-BD
→ For a detailed description of the version number check method, refer to Section 1.3.

6.2 Checking Installation

• Confirm that the 2AD-BD is attached correctly to the main unit. Confirm also that the POW indicator lamp
E

FX3U-4DA
of the 2AD-BD is lit correctly.
→ For a detailed description of installing, refer to FX3G Series User’s Manual - Hardware Edition.

6.3 Wiring Check

F
Check the following items for wiring:

FX3U-4DA-ADP
1. Analog input line
Use 2-core twisted shielded pair cable for the analog input line. In addition, be sure to separate the analog
input line from other power lines or inductive lines.

2. Use of current input mode G

FX3G-1DA-BD
To use the current input mode for a channel, be sure to shortcircuit the line between the V + terminal and the
I +terminal ( : channel number) of the channel. If the line is not shortcircuited, data will not be converted
into correct digital data.
→ For a detailed description of wiring, refer to Chapter 3.

6.4 Special Device Check H

FX3U-4AD-PT

Check whether the special devices for the 2AD-BD are being used correctly:
-ADP

1. Input mode switching

Check that the special device for switching the input mode is set correctly.
Turn off the device to set the input mode to the voltage input mode. Turn on the device to set the input mode I
to the current input mode.
FX3U-4AD-PTW

2. Input data
Verify that the special device of the selected channel is correctly selected. This special device should be
-ADP

selected depending on the connecting position and the channel.

3. Averaging time J
FX3U-4AD-PNK

Check that the set averaging time is within the specified range. The averaging time should be set in the range
from 1 to 4095. If the set averaging time is outside the specified range, an error occurs.
-ADP

D-21
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 6 Troubleshooting
FX3G-2AD-BD (2-channel analog Input) 6.5 Program Check

4. Error status
Check that no error is detected in the 2AD-BD.
If an error is detected, check the details of the error, and then check the wiring and programs.
→ For a detailed description of special devices, refer to Chapter 4.

6.5 Program Check

Check the following items for the program:

1. Clearing of error status at power on

When the power is turned off and then on again, the error status should be cleared (b6 and b7 should turn off)
using the program.

2. Check of storage devices

Verify that different values are not being stored in the same device by other parts of the program.

6.6 Error Status Check

If an error occurs in the 2AD-BD, the corresponding bit will turn on.

Bit Description Bit Description

b0 Channel-1 over-scale detection b5 Averaging time setting error
b1 Channel-2 over-scale detection b6 2AD-BD hardware error
b2 Unused b7 2AD-BD communication data error
b3 Unused b8 to b15 Unused
b4 EEPROM error - -
To solve the problem, refer to the troubleshooting method described below:

1. Over-scale detection (b0, b1)

1) Description of error
The input analog value (voltage or current value) is outside the specified range.
The digital value is out of the range specified for the voltage input mode (0 to 4080) or outside the range
specified for the current input mode (0 to 2040).
2) Remedy
Check that the input analog value is within the specified range. Also check the wiring.

2. EEPROM error (b4)

1) Description of error
The adjustment data which was set in the EEPROM before delivery from our factory cannot be read out
properly or has been destroyed.
2) Remedy
Please contact the nearest Mitsubishi Electric distributor office.

3. Averaging time setting error (b5)

1) Description of error
The averaging time set for one of the channels (channels 1 to 2) is outside the specified range: 1 to 4095.
2) Remedy
Check that the averaging time is set correctly for each channel.

4. 2AD-BD hardware error (b6)

1) Description of error
The 2AD-BD is not operating properly.
2) Remedy
Check that the 2AD-BD is correctly connected to the PLC.
If the problem cannot be solved even after the above check, please contact the nearest Mitsubishi
Electric distributor office.

D-22
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 6 Troubleshooting
FX3G-2AD-BD (2-channel analog Input) 6.6 Error Status Check

A
5. 2AD-BD communication data error (b7)

Common Items
1) Description of error
A communication error is detected between the 2AD-BD and the PLC.
2) Remedy
Check that the 2AD-BD is correctly connected to the PLC.
If the problem cannot be solved even after the above check, please contact the nearest Mitsubishi B
Electric distributor office.

FX3UC-4AD
FX3U-4AD
C

FX3U-4AD-ADP
D

FX3G-2AD-BD
E

FX3U-4DA
F

FX3U-4DA-ADP
G

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

D-23
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 6 Troubleshooting
FX3G-2AD-BD (2-channel analog Input) 6.6 Error Status Check

MEMO

D-24
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition
FX3U-4DA (4-channel Analog Output)

Common Items
B

FX3UC-4AD
FX3U-4AD
FX3G/FX3U/FX3UC Series Programmable
Controllers C

FX3U-4AD-ADP
User's Manual [Analog Control Edition]
FX3U-4DA (4-channel Analog Output)
D

FX3G-2AD-BD
E

FX3U-4DA
F

FX3U-4DA-ADP
G

FX3G-1DA-BD

H
FX3U-4AD-PT

Foreword
-ADP

This manual describes the specifications, wiring, and operation methods for the FX3U-4DA special extension
block (4-channel analog output) and should be read and understood before attempting to install or use the
unit.
I
FX3U-4AD-PTW

Store this manual in a safe place so that you can take it out and read it whenever necessary. Always forward
it to the end user.
-ADP

This manual confers no industrial property rights or any rights of any other kind, nor does it confer any patent
licenses. Mitsubishi Electric Corporation cannot be held responsible for any problems involving industrial property
rights which may occur as a result of using the contents noted in this manual. J
FX3U-4AD-PNK

© 2005 MITSUBISHI ELECTRIC CORPORATION

-ADP

E-1
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition
FX3U-4DA (4-channel Analog Output)

E-2
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 1 Outline
FX3U-4DA (4-channel Analog Output) 1.1 Outline of Functions

Common Items
1. Outline
This chapter outlines the FX3U-4DA. B

FX3UC-4AD
FX3U-4AD
1.1 Outline of Functions
FX3U-4DA is an analog special function block which is connectable to the FX3G, FX3U or FX3UC Series PLC to
convert 4-channel digital signal from the PLC to analog signal (voltage/current).
C
1) Up to 8*1 units can be connected to the FX3G/FX3U/FX3UC Series PLC.

FX3U-4AD-ADP
(including the other special function blocks).
2) Each channel has either Voltage Output or Current Output specification.
3) The block converts the digital values stored in the FX3U-4DA buffer memory (BFM) in FX3U-4DA to
analog signals (voltage/current).
4) A predetermined output pattern is set as data table, and analog signal can be output according to the
D

FX3G-2AD-BD
data table.

Point and section to be

System referred to

Up to 8*1 units connect to the FX3G/FX3U/FX3UC Series PLC

E

FX3U-4DA
(including other types of special function blocks) •••••• Number of connectable units

FX3G/FX3U Series PLC

To check the connectable PLC
•••••• model number, refer to

•••••••••
Section 1.3.
F

FX3U-4DA-ADP
FX3U -4DA FX3U -4DA

24V 24V
D/A D/A

FX3UC Series PLC Analog data

••••••
For a detailed description of
Inverter etc. wiring, refer to Chapter 3.
G

FX3G-1DA-BD
For a detailed description of
•••••• analog data output programs,
refer to Chapter 4, 7, and 8.
For a detailed description of
H
•••••• the buffer memory, refer to
Program Buffer memory
Transmission direction Section 5.3, and Section 5.4.
• FROM(FNC 78) BFM#0
• TO(FNC 79)
FX3U-4AD-PT

To use FROM/TO instruction

•••

••••••
or to directly specify the BFM,
• BFM direct BFM#3098 refer to Section 5.2.
specification(U
\G
)*2
-ADP

Refer to the system configuration shown in the FX3G/FX3U/FX3UC User's Manual - Hardware Edition to check the
number of connectable units and to configure the entire system.
I
FX3U-4AD-PTW

*1. Up to 7 units can be connected to the FX3UC-32MT-LT(-2) PLC.

*2. This function is just available for FX3U and FX3UC PLCs.
-ADP

J
FX3U-4AD-PNK
-ADP

E-3
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 1 Outline
FX3U-4DA (4-channel Analog Output) 1.2 Setup Procedure Before Starting Operation

1.2 Setup Procedure Before Starting Operation

Before starting to use the FX3U-4DA, follow the procedure below to set up the system:

FX3U-4DA

Refer to Chapter 1.

Outline Outline of system:

• Version number of compatible PLC
• Version number of compatible
programming tool
Refer to Chapter 2.

Check specifications Specifications:

• Operation environment
Refer to the common • Performance specifications
pages. • Output characteristics

System configuration and selection System configuration:

(Refer to the analog control common
pages.)
Refer to Chapter 3. • Selection of units

Wiring Wiring:
• Power supply line
• Analog output line
Refer to Chapter 4.

Analog data output (test program) Output mode specification:

• Output mode specification program for
channel 1 to 4
Refer to Chapter 5.

Buffer memory (BFM) check Buffer memory:

• Buffer memory read/write method
• List of buffer memories
• Details of buffer memory
Refer to Chapter 6.

When the table output function is used Table output function:

• Preparation of data table
• Transfer of data table to buffer memory
• Execution of table output function
Refer to Chapter 7.

Adjustment of output characteristics Adjustment of output characteristics:

• Output characteristics change procedure

Refer to Chapter 8.

Program edit Program edit:

• Basic program
• Convenient function program

If the error status data or the output analog value

is abnormal, refer to Chapter 9 "Troubleshooting."

E-4
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 1 Outline
FX3U-4DA (4-channel Analog Output) 1.3 Connectable PLCs and Version Numbers

A
1.3 Connectable PLCs and Version Numbers

Common Items
FX3U-4DA is compatible with the following PLC.

Compatible PLC Version number Date of production

FX3U Series PLC Ver. 2.20 or later from the first product B

FX3UC-4AD
FX3U-4AD
FX3UC Series PLC Ver. 1.30 or later August 2004 and later
FX3G Series PLC Ver. 1.00 or later from the first product

1. Version check
Special data register D8001 contains information for determining the PLC version.
C

FX3U-4AD-ADP
D8001 2 4 1 0 0
PLC type and
version number Version data (Example: Ver. 1.00)
D
(
PLC type Example: 24 = FX3U and FX3UC series
)

FX3G-2AD-BD
26 = FX3G series

2. How to look at the manufacturer's serial number

The year and month of product production can be seen from the manufacturer's serial number "SERIAL"
indicated on the label adhered to the right side of the product.
E

FX3U-4DA
Example:
FX3U-48MR/ES(production number : 570001)

Right side MITSUBISHI PROGRAMMABLE

CONTROLLER

MODEL FX3U-48MR/ES
100-240VAC 50/60Hz 40W F
OUT:30VDC/240VAC 2A(COSφ=1)

FX3U-4DA-ADP
SERIAL 570001

80M1 IND. CONT. EQ.

MITSUBISHI ELECTRIC CORPORATION
MADE IN JAPAN

5 7 0 0 0 1
G

FX3G-1DA-BD
Control number
Month (Example: 7 = July), 1 to 9 = January to September,
X = October, Y = November, Z = December
Year (Example: 5 = 2005), last digit of dominical year

H
FX3U-4AD-PT

1.4 Version Number of Compatible Programming Tools

-ADP

Use a programming tool with the following version number to create FX3U-4DA programs for the FX3G/FX3U/
FX3UC Series PLC.
I
FX3U-4AD-PTW

Software Compatible version number Remarks

GX Developer Ver. SW8 P or later
(Ver. 8.13P) When selecting the model, select FX3U(C)*1.
• SW D5C-GPPW-J
-ADP

• SW D5C-GPPW-E (Ver. 8.72A or later) When selecting the model, select FX3G.
J
If a programming tool with the wrong version number is used, some instructions and devices cannot be used.
FX3U-4AD-PNK

*1. For Ver. 8.13P to 8.24A of GX Developer, select FX3UC for the PLC type.
-ADP

E-5
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 Specifications
FX3U-4DA (4-channel Analog Output) 2.1 Generic Specifications

2. Specifications
This chapter describes the general, power supply, and performance specifications for the FX3U-4DA.

2.1 Generic Specifications

Item Specifications
Ambient 0 to 55°C (32 to 131°F) when operating
temperature -25 to 75°C (-13 to 167°F) when stored
Relative
5 to 95%RH (no condensation) when operating
humidity
Frequency Acceleration Half amplitude
(Hz) (m/s2) (mm)
Tests 10 times in each
Vibration 10 - 57 - 0.035 direction (X-, Y-, and Z-
DIN Rail Mounting
resistance 57 - 150 4.9 - axis directions) (Total:
80 min, each)
10 - 57 - 0.075
Direct Mounting*1
57 - 150 9.8 -
Shock
147 m/s2 Acceleration, Action time: 11ms, 3 times by half-sine pulse in each direction X, Y, and Z
resistance
Noise Using noise simulator of:
resistance Noise voltage: 1,000Vp-p / Noise width: 1µs / Rise: 1ns / Cycle: 30 to 100Hz
Dielectric
withstand 500 V AC, for 1 min
voltage Between batch of all terminals and ground terminal
Insulation 5MΩ or more using 500V DC
resistance insulation resistance meter
Class D grounding (grounding resistance: 100 Ω or less)
Grounding
<Common grounding with a heavy electrical system is not allowed.>*2
Working
Free from corrosive or flammable gas and excessive conductive dusts
environment
Working
< 2000m*3
altitude

*1. When this block is connected to the FX3UC Series PLC, the direct mounting method cannot be used.
*2.
PLC Other PLC Other PLC Other
equipment equipment equipment

Independent grounding Shared grounding Common grounding

Best condition Good condition Not allowed

→ For a detailed description of grounding, refer to Section 3.5.

*3. If the pressure is higher than the atmospheric pressure, do not use the FX3U-4DA, as it may
malfunction.

E-6
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 Specifications
FX3U-4DA (4-channel Analog Output) 2.2 Power Supply Specifications

A
2.2 Power Supply Specifications

Common Items
Item Specifications
D/A conversion 24V DC ±10%, 160mA B
circuit drive power (It is necessary to supply 24V DC from the terminal block.)

FX3UC-4AD
FX3U-4AD
5V DC, 120mA
CPU drive power (Since the internal power is supplied from the main unit, it is not necessary to supply power
externally.)

FX3U-4AD-ADP
2.3 Performance Specifications

Item
Specifications
D
Voltage output Current output

FX3G-2AD-BD
Analog output -10V to +10V DC 0mA to 20mA DC, 4mA to 20mA DC
range (External load: 1kΩ to 1MΩ) (External load: 500Ω or less)
Offset*1 -10V to +9V*2 0mA to 17mA*3
Gain*1 -9V to +10V*2 3mA to 30mA*3
E
Digital input With sign, 16bits, binary 15bits, binary

FX3U-4DA
Resolution 0.32mV (20V / 64,000) 0.63µA (20mA / 32,000)
• Ambient temperature: 25°C±5°C • Ambient temperature: 25°C±5°C
±0.3% (±60mV) for 20V full scale ±0.3% (±60µA) for 20mA full scale
Overall accuracy
• Ambient temperature: 0°C to 55°C • Ambient temperature: 0°C to 55°C
±0.5% (±100mV) for 20V full scale ±0.5% (±100µA) for 20mA full scale F
Time required for

FX3U-4DA-ADP
1ms (The number of selected channels will not affect this value.)
D/A conversion
• The photocoupler is used to insulate the analog output area from the PLC.
Insulation method • The DC/DC converter is used to insulate the analog output area from the power supply unit.
• Channels are not insulated from each other.
Number of I/O
8 points (Taken from either the input or output points of the PLC.)
G
points occupied

FX3G-1DA-BD
*1. Adjustment of the offset or gain value will not affect the resolution. In output mode 1 or 4, however, the
offset/gain cannot be adjusted.
*2. The offset and the gain should satisfy the following condition:
1V ≤ (Gain - Offset) ≤ 10 V
H
*3. The offset and the gain should satisfy the following condition:
FX3U-4AD-PT

3 mA ≤ (Gain - Offset) ≤ 30 mA
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

E-7
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 Specifications
FX3U-4DA (4-channel Analog Output) 2.4 Output Mode (Characteristics) BFM #0

2.4 Output Mode (Characteristics) BFM #0

For the FX3U-4DA, there are two types of output characteristics: voltage (-10 to +10V) and current (0 to
20mA, 4 to 20mA) output characteristics. The output characteristics depend on the set output mode as
described below.

1. Voltage output characteristics [-10 to +10V] (Output mode: 0, 1)

Set output mode: 1
Set output mode: 0
Output type: Voltage output
Output type: Voltage output
(Specification of analog value mV)
Analog output range: -10 to +10V
Analog output range: -10 to +10V
Digital input range: -32000 to +32000
Digital input range: -10000 to +10000
Offset/gain adjustment: Possible
Offset/gain adjustment: Impossible

Output voltage (V) Output voltage (V)

10.2 10.2
Digital 10 Digital 10
32640

10200
value value
-32000 0 -10000 0
-32640

-10200

32000 10000

-10 -10
-10.2 -10.2

2. Current output characteristics [0 to 20mA] (Output mode: 2, 4)

Set output mode: 4
Set output mode: 2
Output type: Current output
Output type: Current output
(Specification of analog value µA)
Analog output range: 0 to 20mA
Analog output range: 0 to 20 mA
Digital input range: 0 to 32000
Digital input range: 0 to 20000
Offset/gain adjustment: Possible
Offset/gain adjustment: Impossible

Current Current
output (mA) output (mA)
20.4 20.4

20 20

0 32000 32640 0 20000 20400

Digital value Digital value

3. Current Output characteristics [4 to 20mA] (Output mode: 3)

Set output mode: 3
Output type: Current output
Analog output range: 4 to 20mA
Digital input range: 0 to 32000
Offset/gain adjustment: Possible

Current
output (mA)
20.32
20

4
0 32000 32640
Digital value

E-8
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3U-4DA (4-channel Analog Output)

Common Items
3. Wiring
This chapter describes wiring of the FX3U-4DA. B
Observe the following cautions wiring the FX3U-4DA.

FX3UC-4AD
FX3U-4AD
WIRING PRECAUTIONS

• Make sure to cut off all phases of the power supply externally before attempting wiring work.
Failure to do so may cause electric shock or damages to the product. C

FX3U-4AD-ADP
WIRING PRECAUTIONS

• Connect the DC power supply wiring to the dedicated terminals described in this manual.
If an AC power supply is connected to a DC input/output terminal or DC power supply terminal, the PLC will be
burnt out.
D

FX3G-2AD-BD
• Do not wire vacant terminals externally.
Doing so may damage the product.
• Perform class D grounding (grounding resistance: 100Ω or less) to the grounding terminal on the main unit.
Do not use common grounding with heavy electrical systems.
• When drilling screw holes or wiring, make sure cutting or wire debris does not enter the ventilation slits.
Failure to do so may cause fire, equipment failures or malfunctions. E
• Make sure to observe the following precautions in order to prevent malfunctions under the influence of noise:

FX3U-4DA
- Do not bundle the power line or twisted shielded cable together with or lay it close to the main circuit, high-
voltage line, or load line.
Otherwise, noise disturbance and/or surge induction are likely to take place. As a guideline, lay the control line
at least 100mm (3.94") or more away from the main circuit, high-voltage line, or load line.
- Ground the shield of the analog input/output cable at one point on the signal receiving side.
However, do not use common grounding with heavy electrical systems. F
• Make sure to properly wire the terminal block in accordance with the following precautions.

FX3U-4DA-ADP
Failure to do so may cause electric shock, a short-circuit, wire breakage, or damage to the product.
- The disposal size of the cable end should follow the dimensions described in this manual.
- Tightening torque should be between 0.5 and 0.8 N•m.

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

E-9
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3U-4DA (4-channel Analog Output) 3.1 Terminal Layout

3.1 Terminal Layout

The terminals of FX3U-4DA are arranged as follows:

Signal Application
24+
24V DC power supply
24-
Ground terminal
V+
VI- Channel-1 analog output
I+
• Do not connect any lines.
V+
VI- Channel-2 analog output
I+
• Do not connect any lines.
V+
VI- Channel-3 analog output
I+
• Do not connect any lines.
V+
VI- Channel-4 analog output
I+

3.2 Cable and Terminal Tightening Torque

The FX3U-4DA terminal block is designed for M3 screws.
The end disposal of the cable shown below.
Tighten the terminal to a torque of 0.5 N•m to 0.8 N•m.
• When one wire is connected to one terminal
φ3.2 (0.13") Terminal Crimp
6.2 mm (0.24") screw terminal
or less

φ3.2 (0.13")
6.2 mm (0.24") Terminal
’[Žq
or less

• When two wires are connected to one terminal

φ3.2 (0.13")
6.2 mm (0.24") Terminal Crimp
or less screw terminal
6.3 mm(0.25")
or more
φ3.2 (0.13")
6.2 mm (0.24") Terminal
or less
6.3 mm(0.25")
or more

E-10
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3U-4DA (4-channel Analog Output) 3.3 Wiring to Power Supply Terminals

A
3.3 Wiring to Power Supply Terminals

Common Items
3.3.1 Examples of Power Supply Circuit
Below are examples of circuits for using the 24V DC service power supply of the FX3G/FX3U Series PLC. B
1) Sink input [- common] wiring

FX3UC-4AD
FX3U-4AD
AC power
100 to 240 V

FX3U-4AD-ADP
Class-D
grounding
L N S/S 0V 24V 24+ 24-

D
+15V

FX3G-2AD-BD
FX3G/FX3U Series PLC
(main unit) -15V
FX3U-4DA

Connect the "S/S" terminal of the main unit to the "24V" terminal. E

FX3U-4DA
2) Source input [+ common] wiring

AC power
100 to 240 V F

FX3U-4DA-ADP
Class-D
grounding
L N S/S 0V 24V 24+ 24-
G

FX3G-1DA-BD
+15V

FX3G/FX3U Series PLC

(main unit) -15V H
FX3U-4DA
FX3U-4AD-PT

Connect the "S/S" terminal of the main unit to the "0V" terminal.
-ADP

3.3.2 Cautions regarding wiring to the power supply terminals I

FX3U-4AD-PTW

• Ground the " " terminal and " " terminal to the Class - D grounding line (100 Ω or less) together
with the ground terminal of the main unit.
-ADP

• For the timing of power-on/off when using an external power supply, see the following manual of the
connected PLC.
→ Refer to the FX3G Series User's Manual - Hardware Edition. J
→ Refer to the FX3U Series User's Manual - Hardware Edition.
FX3U-4AD-PNK
-ADP

E-11
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3U-4DA (4-channel Analog Output) 3.4 Analog Output Wiring

3.4 Analog Output Wiring

The analog output mode, "voltage output "or "current output", can be selected for each channel.

External power supply FX3U-4DA

wiring

24V DC 24+ +15V

*1 24- -15V

Class-D grounding
*2
If voltage output is
selected
ch
Shield *3
V+
I+ ch
VI-
*4 *5

If current output is
selected ch

Shield *3 V+
I+ ch

VI-

*5
ch : represents the channel number.

*1. For FX3G/FX3U Series PLC (AC power type), the 24V DC service power supply is also available.
*2. Do not connect any wires to the " • " terminal.
*3. Use a 2-core twisted shield wire for analog output wire, and separate it from other power lines or
inductive lines.
*4. If there is ripple or noise in the output voltage, connect a capacitor of approximately 0.1 to 0.47µF 25V
in the vicinity of the signal receiving side.
*5. Ground the shielded wire at one point on the signal receiving side.

3.5 Grounding
Grounding should be performed as stated below.
• The grounding resistance should be 100Ω or less.
• Independent grounding should be performed for best results.
When independent grounding is not performed, perform "shared grounding" as shown in the following
figure.
→ For details, refer to the User’s Manual - Hardware Edition of each Series.

PLC Other PLC Other PLC Other

equipment equipment equipment

Independent grounding Shared grounding Common grounding

Best condition Good condition Not allowed

• The grounding wire size should be AWG14 (2mm2.)

• The grounding point should be close to the PLC, and all grounding wires should be as short as possible.

E-12
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Analog Output
FX3U-4DA (4-channel Analog Output) 4.1 Analog Output Procedures

Common Items
4. Analog Output
This chapter describes the minimum programming necessary for analog output by the FX3U-4DA. B
Follow the procedure below to confirm that correct analog values can be output.

FX3UC-4AD
FX3U-4AD
4.1 Analog Output Procedures

1 Unit number check

C

FX3U-4AD-ADP
Unit numbers from 0 to 7 will be assigned to the special function units/blocks starting from the left.
When the units/blocks are connected to the FX3UC-32MT-LT(-2) PLC, the unit numbers from 1 to 7
are assigned. Check the unit number assigned to the FX3U-4DA.

Unit Unit Unit D

number: 0 number: 1 number: 2

FX3G-2AD-BD
Main unit Input/output Special Special Input/output Special
(FX3U Series extension extension
PLC) block function block function block block function unit

FX3U-4DA
2 Output mode (BFM #0) setting
Depending on the analog signal generator to be connected, set the output mode (BFM #0) for each
channel.
F

FX3U-4DA-ADP
Use hexadecimal numbers for output mode setting. Set the corresponding channel digit to the
output mode setting value specified in the following table:

H G
ch4 ch1

FX3G-1DA-BD
ch3 ch2

Setting
Output mode Analog output range Digital input range
value
0 Voltage output mode -10V to +10V -32000 to +32000 H
FX3U-4AD-PT

Voltage output
1 -10V to +10V -10000 to +10000
analog value mV specification mode
2 Current output mode 0mA to 20mA 0 to 32000
-ADP

3 Current output mode 4mA to 20mA 0 to 32000

4
Current output
0mA to 20mA 0 to 20000
I
analog value µA specification mode
FX3U-4AD-PTW

F Channel not used

→ For a detailed description of the standard output characteristics, refer to Section 2.4.
-ADP

→ For a detailed description of the output mode (BFM #0), refer to Subsection 5.4.1.

J
FX3U-4AD-PNK
-ADP

E-13
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Analog Output
FX3U-4DA (4-channel Analog Output) 4.1 Analog Output Procedures

3 Creation of sequence program

Create the program as follows to output analog signals.
• While referring to step 2, set the output mode "H****".
• While referring to step 1, set the unit number in
- Program Example (For FX3U, FX3UC Series PLCs)*1

Output mode (step 2)

Unit number (step 1)
Initial pulse
M8002
FNC 12 H**** U \GO Specify the output mode (BFM #0) for channels
MOV P 1 to 4.
RUN monitor
M8000
T0 K50

Data to be output to channel 1 is written in D0.

Data to be output to channel 2 is written in D1. Data to be output to channels 1 to 4 are stored in
Data to be output to channel 3 is written in D2. D0 to D3.
Data to be output to channel 4 is written in D3.

T0
FNC 15 Data (BMF #1 to 4) to be output to channels 1
D0 U \G1 K4 to 4 are transferred from D0 to D3.
BMOV

Unit number (step 1)

*1. Use the FROM and TO instructions in FX3G PLCs.

4 Transfer of sequence program and analog output signal check

1) Transfer the sequence program, and start the PLC.
2) Check that analog signals appropriate to the set output data are output.
→ If analog signals are not output correctly, refer to Chapter 9 "Troubleshooting."

E-14
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Buffer Memory (BFM)
FX3U-4DA (4-channel Analog Output) 5.1 Assignment of Unit Numbers and Outline of Buffer Memory

Common Items
5. Buffer Memory (BFM)
This chapter describes the buffer memory incorporated in FX3U-4DA. B

FX3UC-4AD
FX3U-4AD
5.1 Assignment of Unit Numbers and Outline of Buffer Memory

1. Assignment of unit numbers

Unit numbers from 0 to 7 will be assigned to the special function units/blocks starting from the left one. C
When the units/blocks are connected to the FX3UC-32MT-LT(-2) PLC, unit numbers from 1 to 7 are assigned.

FX3U-4AD-ADP
When connected to the FX3G/FX3U/FX3UC (D, DSS) Series PLC

Unit Unit Unit

number: 0 number: 1 number: 2
D

FX3G-2AD-BD
Input/output Special Special Input/output Special
Main unit extension extension
block function block function block block function unit

FX3U-4DA
When connected to the FX3UC-32MT-LT(-2) PLC

Unit number: 0
(Incorporated Unit Unit Unit
CC-Link/LT) number: 1 number: 2 number: 3
F

FX3U-4DA-ADP
Main unit Input/output Input/output
(FX3UC-32MT extension Special Special extension Special
-LT(-2)) block function block function block block function unit

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

E-15
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Buffer Memory (BFM)
FX3U-4DA (4-channel Analog Output) 5.2 Buffer Memory Reading/Writing Method

2. Outline of buffer memory

The digital values set in FX3U-4DA will be converted to analog signals.
To switch the output mode between voltage output and current output, or to adjust the offset or gain, numeric
data will be sent from the main unit and written/set in the FX3U-4DA buffer memory.
To read/write data from/into the buffer memory of FX3U-4DA, the buffer memory can be directly specified
using FROM/TO instructions or an applied instruction. Using this function, sequence programs can be easily
created.
FX3U/FX3UC FX3U-4DA • BFM direct FX3U-4DA
Series PLC specification*1
• TO instruction
Buffer
memory
• BFM direct
• BFM direct
specification*1
specification*1
• TO instruction
Sequence Buffer • FROM instruction
program memory
Digital
• BFM direct Digital value
specification*1 value
• FROM D/A D/A
instruction conversion conversion

Analog data Analog data

Inverter, DC motor, etc.

*1. Since buffer memory direct specification (U
\G
) can directly specify the buffer memory in the source
or destination area of an applied instruction, programs can be created efficiently. (This function is supported
only in FX3U/FX3UC PLCs.)
→ For a detailed description of buffer memory reading/writing, refer to Section 5.2.
→ For a detailed description of the buffer memory, refer to Section 5.4.

5.2 Buffer Memory Reading/Writing Method

To read or write the buffer memory of FX3U-4DA, use FROM/TO instructions or the buffer memory direct
specification function*1.
To use the buffer memory direct specification function*1, however, it is necessary to adopt the software
compatible with the FX3U/FX3UC Series PLC.
*1. This function is supported only in FX3U/FX3UC PLCs.
→ For a detailed description of the software compatible with the FX3U/FX3UC Series PLC,
refer to Section 1.4.

E-16
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Buffer Memory (BFM)
FX3U-4DA (4-channel Analog Output) 5.2 Buffer Memory Reading/Writing Method

A
5.2.1 Buffer memory direct specification (FX3U, FX3UC PLC only)

Common Items
When directly specifying the buffer memory, specify the following device in the source or destination area of
the applied instruction as follows:

U \G Enter a numeric value in B

FX3UC-4AD
FX3U-4AD
Unit number (0 to 7) Buffer memory number (0 - 3098)

1. Example 1
If the following program is created, data in buffer memory (BFM #10) of unit 1 will be multiplied by the data
(K10), and then the multiplication result will be output to the data registers (D10, D11). C

FX3U-4AD-ADP
READ command
FNC 22 U1\G10 K10 D10
MUL

Multiplication result
Unit number
Buffer memory number Multiplier D

FX3G-2AD-BD
2. Example 2
If the following program is created, the value in the data register (D20) is added to K10 and written to buffer
memory (BFM #6) of unit 1.

WRITE command
E
FNC 20

FX3U-4DA
D20 K10 U1\G6
ADD
Addition
result ( Unit
Buffer memory number )
number

Augend Addend
F

FX3U-4DA-ADP
5.2.2 FROM/TO instruction (FX3G, FX3U, FX3UC PLC)

1. FROM instruction (Reading out BFM data to PLC)

Use FROM instruction to read out the data from the buffer memory.
In a sequence program, use this instruction as follows: G

FX3G-1DA-BD
READ command
FNC 78 K1 K10 D10 K1
FROM
Number of transfer
Unit number data points
Buffer memory number Transfer-to register H
FX3U-4AD-PT

If the above program is created, 1 point of data will be read out from the buffer memory BFM #10 of unit No.1
to the data register (D10).
-ADP

2. TO instruction (Writing PLC data into BFM)

Use the TO instruction to write data to a buffer memory.
In a sequence program, use this instruction as follows:
I
FX3U-4AD-PTW

WRITE command
FNC 79 K1 K0 H3300 K1
TO
-ADP

Number of transfer
Unit number data points
Buffer memory number Transfer source
J
FX3U-4AD-PNK

If the above program is created, 1 point of data (H3300) will be written to buffer memory (BFM #0) of unit
No.1.
-ADP

E-17
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Buffer Memory (BFM)
FX3U-4DA (4-channel Analog Output) 5.3 Buffer Memory List (BFM)

5.3 Buffer Memory List (BFM)

FX3U-4DA incorporates the following buffer memories.
→ For a detailed description of the buffer memory, refer to Section 5.4 and subsequent sections.

BFM number Description Setting range Initial value Data type Reference
Hexadeci- Subsection
#0*1 Output mode setting for channels 1 to 4 *2 H0000 at delivery
mal 5.4.1
#1 Channel 1 output data K0 Decimal
#2 Channel 2 output data Depending on the K0 Decimal Subsection
#3 Channel 3 output data mode used K0 Decimal 5.4.2

#4 Channel 4 output data K0 Decimal

Hexadeci- Subsection
#5*1 Output setting upon PLC stop *3 H0000
mal 5.4.3
Hexadeci- Subsection
#6 Output status - H0000
mal 5.4.4
#7, #8 Not used - - - -
Command to write offset/gain setting value of Hexadeci- Subsection
#9 *4 H0000
channels 1 to 4 mal 5.4.5

#10*1 Channel-1 offset data (Unit: mV or µA) Decimal

#11 *1 Channel-2 offset data (Unit: mV or µA) Depending on the Depending on Decimal Subsection
Channel-3 offset data (Unit: mV or µA) mode used the mode used 5.4.6
#12*1 Decimal

#13*1 Channel-4 offset data (Unit: mV or µA) Decimal

#14*1 Channel-1 gain data (Unit: mV or µA) Decimal

#15 *1 Channel-2 gain data (Unit: mV or µA) Depending on the Depending on Decimal Subsection
*1 Channel-3 gain data (Unit: mV or µA) mode used the mode used Decimal 5.4.6
#16

#17*1 Channel-4 gain data (Unit: mV or µA) Decimal

#18 Not used - - - -
To permit data
change: K3030
Subsection
#19*1 Setting change prohibition To disable data K3030 at delivery Decimal
5.4.7
change: Value
other than K3030
Initialization function:
Set "K1" in this buffer memory to perform Subsection
#20 K0 or K1 K0 Decimal
initialization. At the completion of initialization, 5.4.8
the "K0" will be automatically set.
#21 to #27 Not used - - - -
Disconnection detection status (Valid only in Hexadeci- Subsection
#28 - H0000
current mode selection) mal 5.4.9
Hexadeci- Subsection
#29 Error status - H0000
mal 5.4.10
Subsection
#30 Model code K3030 - K3030 Decimal
5.4.11
#31 Not used - - - -

*1. If power failure occurs, the EEPROM will retain the data.
*2. Specify the output mode of each channel setting one of hex code 0 to 4 and F in each digit.
*3. Specify the data to be output from each channel upon PLC stop setting one of hex code 0 to 2 in each
digit.
*4. Use b0 to b3.

E-18
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Buffer Memory (BFM)
FX3U-4DA (4-channel Analog Output) 5.3 Buffer Memory List (BFM)

Common Items
BFM number Description Setting range Initial value Data type Reference
Data to be output from channel 1 upon PLC stop Depending on the
#32*1 (Valid only if BFM #5 = H 2) mode used
K0 Decimal

#33*1
Data to be output from channel 2 upon PLC stop Depending on the
K0 Decimal B
(Valid only if BFM #5 = H 2 ) mode used Subsection

FX3UC-4AD
FX3U-4AD
Data to be output from channel 3 upon PLC stop Depending on the 5.4.12
#34*1 K0 Decimal
(Valid only if BFM #5 = H 2 ) mode used
Data to be output from channel 4 upon PLC stop Depending on the
#35*1 K0 Decimal
(Valid only if BFM #5 = H2 ) mode used
#36, #37 Not used - - - -
C
Hexadeci- Subsection

FX3U-4AD-ADP
#38 Upper/lower limit function setting *2 H0000
mal 5.4.13
Hexadeci- Subsection
#39 Upper/lower limit function status - H0000
mal 5.4.14
Hexadeci- Subsection
#40 Clear of upper/lower limit function status *3 H0000

#41 Channel-1 lower limit of upper/lower limit function K-32640

mal
Decimal
5.4.15
D

FX3G-2AD-BD
#42 Channel-2 lower limit of upper/lower limit function Depending on the K-32640 Decimal Subsection
#43 Channel-3 lower limit of upper/lower limit function mode used K-32640 Decimal 5.4.16

#44 Channel-4 lower limit of upper/lower limit function K-32640 Decimal

#45 Channel-1 upper limit of upper/lower limit function K32640 Decimal
#46 Channel-2 upper limit of upper/lower limit function Depending on the K32640 Decimal Subsection
E

FX3U-4DA
#47 Channel-3 upper limit of upper/lower limit function mode used K32640 Decimal 5.4.16

#48 Channel-4 upper limit of upper/lower limit function K32640 Decimal

#49 Not used - - - -
Corrective function setting by load resistance Hexadeci- Subsection
#50*1 *4 H0000
(Valid only in voltage output mode) mal 5.4.17
F
#51*1 Load resistance value for channel 1 (Unit: Ω) K1000 to K30000 K30000 Decimal

FX3U-4DA-ADP
#52*1 Load resistance value for channel 2 (Unit: Ω) K1000 to K30000 K30000 Decimal Subsection
*1 Load resistance value for channel 3 (Unit: Ω) K1000 to K30000 K30000 Decimal 5.4.17
#53

#54*1 Load resistance value for channel 4 (Unit: Ω) K1000 to K30000 K30000 Decimal
#55 to #59 Not used - - - - G
Subsection

FX3G-1DA-BD
#60*1 Status automatic transfer function setting *5 K0 Decimal
5.4.18
Error status data (BFM #29) automatic transfer-
Subsection
#61*1 to data register specification (Valid if b0 of BFM K200 Decimal
5.4.19
#60 is set to ON)
K0 to 7999 (BFM

#62*1
Upper/lower limit function status data (BFM #39)
automatic transfer-to data register specification
#61, #62 and #63
K201 Decimal
Subsection H
must have different 5.4.20
FX3U-4AD-PT

(Valid if b1 of BFM #60 is set to ON)

values.)
Disconnection detection status data (BFM #28)
Subsection
#63*1 automatic transfer-to data register specification K202 Decimal
5.4.21
-ADP

(Valid if b2 of BFM #60 is set to ON)

#64 to #79 Not used - - - -

*1. If power failure occurs, the EEPROM will retain the data.
I
FX3U-4AD-PTW

*2. Specify the use of the upper/lower limit function for each channel setting one of hex code 0 to 2 in
each digit.
*3. Use b0 to b1.
-ADP

*4. Specify the use of the corrective function by load resistance for each channel setting a hex code 0 or
1 in each digit. J
FX3U-4AD-PNK

*5. Use b0 to b2.

-ADP

E-19
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Buffer Memory (BFM)
FX3U-4DA (4-channel Analog Output) 5.3 Buffer Memory List (BFM)

BFM number Description Setting range Initial value Data type Reference
Hexadeci-
#80 Start/stop of table output function *1 H0000
mal
#81 Channel-1 output pattern K1 to K10 K1 Decimal
#82 Channel-2 output pattern K1 to K10 K1 Decimal
#83 Channel-3 output pattern K1 to K10 K1 Decimal
#84 Channel-4 output pattern K1 to K10 K1 Decimal
Number of times of output execution of table
#85 K0 to K32767 K0 Decimal
from channel 1
Number of times of output execution of table Chapter 6
#86 K0 to K32767 K0 Decimal
from channel 2
Number of times of output execution of table
#87 K0 to K32767 K0 Decimal
from channel 3
Number of times of output execution of table
#88 K0 to K32767 K0 Decimal
from channel 4
Hexadeci-
#89 Output completion flag of table output function - H0000
mal
#90 Table output error code - K0 Decimal
#91 Table output error occurrence number - K0 Decimal
#92 to #97 Not used - - - -
#98 Head device number in data table K0 to K32767 K1000 Decimal
Hexadeci-
#99 Data table transfer command *2 H0000 Chapter 6
mal
#100 to #398 Data table in pattern 1 - K0 Decimal
#399 Not used - - - -
#400 to #698 Data table in pattern 2 - K0 Decimal Chapter 6
#699 Not used - - - -
#700 to #998 Data table in pattern 3 - K0 Decimal Chapter 6
#999 Not used - - - -
#1000 to
Data table in pattern 4 - K0 Decimal Chapter 6
#1298
#1299 Not used - - - -
#1300 to
Data table in pattern 5 - K0 Decimal Chapter 6
#1598
#1599 Not used - - - -
#1600 to
Data table in pattern 6 - K0 Decimal Chapter 6
#1898
#1899 Not used - - - -
#1900 to
Data table in pattern 7 - K0 Decimal Chapter 6
#2198
#2199 Not used - - - -
#2200 to
Data table in pattern 8 - K0 Decimal Chapter 6
#2498
#2499 Not used - - - -
#2500 to
Data table in pattern 9 - K0 Decimal Chapter 6
#2798
#2799 Not used - - - -
#2800 to
Data table in pattern 10 - K0 Decimal Chapter 6
#3098
*1. Specify whether to start or stop the table output function for each channel setting a hex code 0 or 1
in each digit.
*2. Specify the data table transfer command and the register type setting 0 or 1 in the last two digits of
the hex code.

E-20
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Buffer Memory (BFM)
FX3U-4DA (4-channel Analog Output) 5.4 Buffer Memory Details

A
5.4 Buffer Memory Details

Common Items
5.4.1 BFM #0: Output mode specification

Initial value (at delivery): H0000 B

Numeric data type: Hexadecimal (H)

FX3UC-4AD
FX3U-4AD
Specify the output modes of channel 1 to 4.
4 hexadecimal digits are assigned to specify the output modes of the 4 channels.
Change the value of each digit to change the output mode of each channel. 0 to 4 and F can be set for each
digit.
C
H

FX3U-4AD-ADP
ch4 ch1
ch3 ch2
The different types of output modes are shown in the following table:
→ For a detailed description of output characteristics, refer to Section 2.4. D

FX3G-2AD-BD
Set value
Output mode Analog output range Digital input range
[HEX]
0 Voltage output mode -10V to +10V -32000 to +32000
Voltage output
1*1 analog value mV specification mode
-10V to +10V -10000 to +10000
E
2 Current output mode 0mA to 20mA 0 to 32000

FX3U-4DA
3 Current output mode 4mA to 20mA 0 to 32000
Current output
4*1 analog value µA specification mode
0mA to 20mA 0 to 20000

5 to E Invalid (setting values unchanged) - -

F
F Channel not used

FX3U-4DA-ADP
*1. The offset/gain values cannot be changed.
1. Cautions regarding output mode setting
• While the output mode is being changed, the output is stopped, and H0000 is automatically written in the
output status (BFM #6).
At the completion of change of the output mode, the output status (BFM #6) will automatically change to
G

FX3G-1DA-BD
H1111, and the output is restarted.
• It takes approximately 5 seconds to determine the output mode.
For this reason, after changing the output mode, be sure to wait for 5 seconds or more, and then write the
other data.
• When the output mode is changed, the settings in the following buffer memory are initialized according to
the new output mode. H
FX3U-4AD-PT

BFM #5 (output setting upon PLC stop)*1

BFM #10 to #13 (offset data)*2
BFM #14 to #17 (gain data)*2
-ADP

BFM #28 (disconnection detection status)*3

BFM #32 to #35 (output data upon PLC stop)*2 I
BFM #38 (upper/lower limit function setting)*1
FX3U-4AD-PTW

BFM #41 to #44 (lower limit values of upper/lower limit function)*2

BFM #45 to #48 (upper limit values of upper/lower limit function)*2
-ADP

BFM #50 (Setting of output corrective function by load resistance)*1

*1 FX3U-4DA initializes the corresponding bit to the channel where the user has changed the output mode.
*2 FX3U-4DA initializes the corresponding buffer memory to the channel where the user has changed the J
output mode.
FX3U-4AD-PNK

*3 These settings are initialized only when the output mode is changed from current output mode
(mode 2, 3 or 4) to voltage output mode (mode 0 or 1).
-ADP

• HFFFF (use of no channels) cannot be set.

E-21
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Buffer Memory (BFM)
FX3U-4DA (4-channel Analog Output) 5.4 Buffer Memory Details

2. Caution regarding EEPROM writing

If data is written to BFM #0, #5, #10 to #17, #32 to #35, #50 to #54 or #60 to #63, the data will also be written
to the FX3U-4DA EEPROM.
Do not turn off the power immediately after writing values in these buffer memories.
The maximum number of EEPROM rewrites is 10,000 times. Therefore, when creating a program, do not
frequently write data to the above buffer memories (BFM).

5.4.2 BFM #1 to #4: Output data

Initial value: K0
Numeric data type: Decimal (K)

Input the digital values corresponding to the analog signals to be output in BFM #1 to #4.

BFM number Description

#1 Data to be output from channel 1
#2 Data to be output from channel 2
#3 Data to be output from channel 3
#4 Data to be output from channel 4

5.4.3 BFM #5: Output setting upon PLC stop

Initial value: H0000

Numeric data type: Hexadecimal (H)

It is possible to set the output conditions from channel 1 to 4 when the PLC is in the stopped state.

H
ch4 ch1
ch3 ch2

Set value (HEX) Output conditions

0 The final value during running is held.
1 The offset signal is output.*
2 The output data set in BFM #32 to #35 are output.*
3 to F Invalid (setting values unchanged)

* The output conditions depend on the output mode (BFM #0).

1. Cautions regarding output conditions setting upon PLC stop

• While changing the setting values, the output is stopped, and H0000 is automatically written in the output
status (BFM #6).
At the completion of change, the output status (BFM #6) will automatically change to H1111, and output
will be restarted.
2. Caution regarding EEPROM writing
• If data is set in BFM #0, #5, #10 to #17, #32 to #35, #50 to #54 or #60 to #63, the data will be written in the
EEPROM of FX3U-4DA.
Do not turn off the power immediately after writing values in these buffer memories.
The maximum number of EEPROM rewritable times is 10,000 times. Therefore, when creating a program,
do not frequently write data to the above buffer memories (BFM).

E-22
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Buffer Memory (BFM)
FX3U-4DA (4-channel Analog Output) 5.4 Buffer Memory Details

A
5.4.4 BFM #6: Output status

Common Items
Initial value: H0000
Numeric data type: Hexadecimal (H)

The output status information of channel 1 to 4 is stored.

B

FX3UC-4AD
FX3U-4AD
H
ch4 ch1
ch3 ch2
C

FX3U-4AD-ADP
Value status (HEX) Description
0 Output updating is stopped.*
1 Under output updating

* The output conditions conform to the output setting upon PLC stop (BFM #5).
D
1. Cautions regarding use of output status

FX3G-2AD-BD
• The output status setting is valid only if the PLC is running.
When the PLC is stopped, H0000 is automatically written.
• When the setting in any of the following buffer memory areas is changed, output updating is stopped.
H0000 is automatically written in BFM #6.
E
• BFM #0 (Output mode setting)

FX3U-4DA
• BFM #5 (Output setting upon PLC stop)
• BFM #9 (Offset/gain setting value write command)
• BFM #19 (Setting change prohibition)
• BFM #20 (Initialization function) F
• BFM #32 to #35 (Data to be output from each channel upon PLC stop)

FX3U-4DA-ADP
• BFM #50 (Corrective function setting by load resistance)
• BFM #51 to #54 (Load resistance for each channel)
• BFM #60 (Status automatic transfer function Setting)
• BFM #61 (Error status data automatic transfer-to data register specification) G

FX3G-1DA-BD
• BFM #62 (Upper/lower limit function status with automatic transfer to specified data register)
• BFM #63 (Disconnection detection status with automatic transfer to data register specification)
• BFM #99 (Data table transfer command)

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

E-23
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Buffer Memory (BFM)
FX3U-4DA (4-channel Analog Output) 5.4 Buffer Memory Details

5.4.5 BFM #9: Offset/gain setting value write command

Initial value: H0000
Numeric data type: Hexadecimal (H)
Channel numbers are assigned to 4 lower bits of BFM #9. If one of those bits is turned on, the offset data
(BFM #10 to #13) and the gain data (BFM #14 to #17) of the corresponding channel will be written in the
internal memory (EEPROM). When written in the internal memory, the data will be valid.

1. Channel number assignment to each bit of BFM #9

Bit No. Description

b0 Channel-1 offset data (BFM #10) and gain data (BFM #14) writing
b1 Channel-2 offset data (BFM #11) and gain data (BFM #15) writing
b2 Channel-3 offset data (BFM #12) and gain data (BFM #16) writing
b3 Channel-4 offset data (BFM #13) and gain data (BFM #17) writing
b4 to b15 Not used

The WRITE command can be given to two or more channels at the same time. (Set "H000F" to write the data
of all the channels in the EEPROM.)
On completion of writing, "H0000" (b0 to b3: OFF) will be set automatically.

2. Cautions regarding giving offset/gain setting value write command

• While changing the setting, the output is stopped, and H0000 is automatically written in the output status
(BFM #6).
At the completion of writing, the output status (BFM #6) will automatically change to H1111, and output will
be restarted.
• If the analog value specification mode (mode 1 or 4) is used, the offset/gain cannot be changed.
When other output mode has been set, it is possible to change to same characteristics as those in the
output mode 1 or 4.
• If the write command is not executed, the offset and gain data will not be stored in the EEPROM.
• When b1 of the error status (BFM #29) is set to ON, the offset and gain data will not be stored in the
EEPROM.
→ For a detailed description of offset and gain setting, refer to Subsection 5.4.6.

E-24
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Buffer Memory (BFM)
FX3U-4DA (4-channel Analog Output) 5.4 Buffer Memory Details

A
5.4.6 BFM #10 to #13: Offset data/BFM #14 to #17: Gain data

Common Items
Setting range: See below
Initial value: See below
Numeric data type: Decimal (K)

If the output mode is specified in BFM #0, the initial value of the offset data and gain data of each channel will
B

FX3UC-4AD
FX3U-4AD
be automatically stored.
The initial offset data and the gain data are set for each mode as shown in the following table:
• Offset data: Analog output value when the output data in BFM #1 to #4 are 0 (reference offset value)
• Gain data: Analog output value when the output data in BFM #1 to #4 are the reference gain values (The
reference gain value depends on the set output mode.) C

FX3U-4AD-ADP
1. Reference offset/gain value and initial value set
Offset (channels 1 to 4: Gain (channels 1 to 4:
Output mode (BFM #0)
BFM #10 to #13) BFM #14 to #17)
Reference Reference
Set value Description Initial value Initial value
value value D
Voltage output

FX3G-2AD-BD
0 0 0mV 16000 5000mV
(-10 V to +10 V: -32000 to +32000)
Voltage output Analog value mV 0 0mV 5000 5000mV
1 specification mode (Data change (Data change (Data change (Data change
(-10 V to +10 V: -10000 to +10000) impossible) impossible) impossible) impossible)

2
Current output
0 0µA 16000 10000µA E
(0 mA to 20 mA: 0 to 32000)

FX3U-4DA
Current output
3 0 4000µA 16000 12000µA
(4 mA to 20 mA: 0 to 32000)
Current output Analog value µA 0 0µA 10000 10000µA
4 specification mode (Data change (Data change (Data change (Data change
(0 mA to 20 mA: 0 to 20000) impossible) impossible) impossible) impossible) F

FX3U-4DA-ADP
2. Offset/gain data change
Set offset data and gain data to change the output characteristics.
The offset and gain data can be set for each channel. If the voltage output mode is set, write the offset and
gain data in mV. If the current output mode is set, write the offset and gain data in µA.
To change the offset or gain data, execute the offset/gain setting value write command (BFM #9).
G

FX3G-1DA-BD
The setting range is shown in the following table.

Voltage output (mV) Current output (µA)

*1
Offset data -10000 to +9000 0 to 17000*2
Gain data -9000 to +10000*1 3000 to 30000*2 H
FX3U-4AD-PT

*1. The offset and gain values should meet the following conditions:
1000 ≤ Gain value - Offset value ≤ 10000
*2. The offset and gain values should meet the following conditions:
-ADP

3000 ≤ Gain value - Offset value ≤ 30000

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

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FX3U-4DA (4-channel Analog Output) 5.4 Buffer Memory Details

3. Cautions regarding offset/gain data change

• If the analog value specification mode (mode 1 or 4) is used, the offset/gain cannot be changed. However,
the characteristics can be changed as those in the output mode 1 or 4 by setting the following offset and
gain data in the output mode 0 or 2.

Offset data Gain data

Change characteristics from output mode 0 to 1 0 16000
Change characteristics from output mode 2 to 4 0 16000

• The offset and gain data should be set before the value write command BFM #9 is executed.
• The resolution cannot be increased by changing the output characteristics.
• When the value specified as the output mode (BFM #0) is changed, the initial value of offset and gain data
in each output mode will be automatically written.
• Even if the output characteristics are changed, the actual valid output range will not be changed:
-10 V to +10 V for the voltage output mode, and 0 mA to 20 mA in the current output mode.
→ For a detailed description of output characteristics change, refer to Chapter 7.

5.4.7 BFM #19: Data change prohibition of setting change

Setting range: K3030 or other than K3030

Initial value: K3030
Numeric data type: Decimal (K)

Setting in the following buffer memory areas is prohibited.

• BFM #0 (output mode setting Output mode setting)
BFM #5 (output setting upon PLC stop)
BFM #9 (offset/gain setting value write command)
BFM #10 to #13 (offset data)
BFM #14 to #17 (gain data)
BFM #20 (initialization function)
BFM #32 to #35 (data to be output upon PLC stop)
BFM #38 (upper/lower limit function setting)
BFM #41 to #48 (upper and lower limit values of upper/lower limit function)
BFM #50 (corrective function setting by load resistance)
BFM #51 to #54 (load resistance values)
BFM #60 (status automatic transfer function setting)
BFM #61 (Error status data automatic transfer-to data register specification)
BFM #62 (Upper/lower limit function status with automatic transfer to specified register specification)
BFM #63 (Disconnection detection status with automatic transfer to specified data register specification)

Specify the following value as the setting change prohibition mode (BFM #19).

Set value Description

K3030 permits data change
Other than K3030 disables data change

1. Cautions regarding setting of the setting change prohibition mode

• While changing the setting value, the output is stopped, and H0000 is automatically written in the output
status (BFM #6).
At the completion of writing, the output status (BFM #6) will automatically change to H1111, and the output
will be restarted.

2. Cautions regarding EEPROM writing

If data is set in BFM #0, #5, #10 to #17, #32 to #35, #50 to #54 or #60 to #63, the data will be written in the
EEPROM of FX3U-4DA.
Do not turn off power immediately after writing values in these buffer memories
The maximum number of EEPROM rewritable times is 10,000. Therefore, when creating a program, do not
frequently write data in the above buffer memories (BFM).

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Buffer Memory (BFM)
FX3U-4DA (4-channel Analog Output) 5.4 Buffer Memory Details

A
5.4.8 BFM #20: Initialization function (resetting to factory default status)

Common Items
Setting range: K0 or K1
Initial value: K0
Numeric data type: Decimal (K)
When K1 is set in BFM #20, all functions and all buffer memory (BFM #0 to #3098) will be initialized to the B
default status.

FX3UC-4AD
FX3U-4AD
When BFM #20 is not K0 or K1, this function is invalid. (The settings will not be changed, and the functions
will not be initialized.)

1. Cautions regarding initialization function

• During initialization, output is stopped, and H0000 is automatically written in the output status (BFM #6). C
• At the completion of initialization, the output status (BFM #6) will automatically change to H1111, and

FX3U-4AD-ADP
output will be restarted.
• It takes approximately 5 seconds to initialize all the data. Do not set (write) data in the buffer memory
during this period.
• Priority is given to the setting of the value change prohibition mode (BFM #19).
• At the completion of initialization, the value of BFM #20 will automatically change to K0.
D

FX3G-2AD-BD
5.4.9 BFM #28: Disconnection detection status (only in current output mode)
Initial value: H0000
Numeric data type: Hexadecimal (H) E

FX3U-4DA
When a wire-break is detected, the bit corresponding to the relevant channel will turn on.

1. Assignment to each bit of BFM #28

Bit No. Description F

b0 Wire-break in channel 1

FX3U-4DA-ADP
b1 Wire-break in channel 2
b2 Wire-break in channel 3
b3 Wire-break in channel 4
b4 to b15 Not used
G

FX3G-1DA-BD
2. Cautions regarding use of disconnection detection status
• When any of b0 to b3 is turned on, b11 of the error status (BFM #29) is turned on.
• The disconnection detection status is valid only if the output mode (BFM #0) is the current output mode
(mode 2 to 4). In other output modes, each corresponding bit of BFM #28 stays off.

3. Disconnection detection status automatic transfer function (b2 of BFM #60)

H
FX3U-4AD-PT

If the disconnection detection status with automatic transfer-to data register is specified in BFM #63, the data
in BFM #28 can be transferred to the specified data register.
Only when wire-break is detected, data will be automatically transferred from FX3U-4DA to the PLC. For this
-ADP

reason, the PLC does not need the program for reading data, and the scan time of the PLC can be shortened.
→ For a detailed description of the status automatic transfer function, refer to Subsection 5.4.18.
I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Buffer Memory (BFM)
FX3U-4DA (4-channel Analog Output) 5.4 Buffer Memory Details

5.4.10 BFM #29: Error status

Initial value: H0000
Numeric data type: Hexadecimal (H)

Error data is assigned each bit of BFM #29.

1. Assignment to each bit of BFM #29

Bit No. Item Description
b0 Error detection If one of b1 to b11 is turned on, b0 will turn on.
Gain setting error: error in offset gain data or in EEPROM offset gain
b1 O/G error
setting
24 V power is not supplied properly.
b2 Power supply error
Check the wiring condition or the supplied voltage.
FX3U-4DA may be defective.
b3 Hardware error
Please contact the nearest Mitsubishi Electric distributor office.
b4 - -
Error setting function for
The setting value of the function for output setting upon PLC stop
b5 output setting upon PLC
(BFM #5) is not set correctly. Correctly set the value.
stop
Upper/lower limit function The setting value of the upper/lower limit function (BFM #41 to BFM #48)
b6
setting error is not set correctly. Correctly reset the value.
Error in corrective function
The setting value of the corrective function by load resistance
setting by load resistance
b7 (BFM #51 to #54) is not set correctly.
(Valid only in voltage output
Correctly set the value.
mode)
Table output function The setting value of the table output function is not set correctly.
b8
setting error Correctly set the value.
The setting value of the status automatic transfer function
Status automatic transfer
b9 (BFM #61 to #63) is not set correctly.
setting error
Correctly set the value.
b10 Over-scale The analog output is out of the specified range.
Disconnection detection
Wire-break has occurred. (The details are indicated by BFM #28.)
b11 (Valid only in current output
* The bit is turned on when BFM #28 is not 0.)
mode)
Setting data change
b12 Setting change is prohibited.
prohibited
b13 to b15 - -

2. Caution regarding error status

If the error cause is eliminated, the error bit will turn off.

3. Error status data automatic transfer function (b0 of BFM #60)

If the error status with automatic transfer to data register is specified in BFM #61, the data in BFM #29 can be
transferred to a specified data register.
Only when an error is detected, data will be automatically transferred from FX3U-4DA to the PLC. For this
reason, the PLC does not need the program for reading data, and the scan time of the PLC can be shortened.
→ For a detailed description of the status automatic transfer function, refer to Subsection 5.4.18.

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Buffer Memory (BFM)
FX3U-4DA (4-channel Analog Output) 5.4 Buffer Memory Details

A
5.4.11 BFM #30: Model code

Common Items
Initial value (at delivery): K3030
Numeric data type: Decimal (K)
K3030 (fixed value) is stored as the model code.
B

FX3UC-4AD
FX3U-4AD
5.4.12 BFM #32 to #35: Data to be output upon PLC stop

Initial value: K0
Numeric data type: Decimal (K)
To enable the output data set when the PLC stops, Set "2" for any digit in the output data (H0000) at PLC's C
stop. Set the BFM values as follows.

FX3U-4AD-ADP
BFM number Description
#32 Data in channel 1
#33 Data in channel 2
#34 Data in channel 3 D
#35 Data in channel 4

FX3G-2AD-BD
The setting range depends on the output mode.

Output mode [BFM #0] Setting range

0 -32640 to +32640 E
1 -10200 to +10200

FX3U-4DA
2, 3 0 to 32640
4 0 to 20400

F
1. Cautions regarding data output setting when PLC is in stop

FX3U-4DA-ADP
• While changing the settings, the output is stopped, and H0000 is automatically written in the output status
(BFM #6).
After the completion of writing, the output status (BFM #6) will automatically change to H1111, and output
will be restarted.
• The analog values to be output depend on the output mode. G

FX3G-1DA-BD
• When a value out of any of the above ranges is set, b5 of the error status (BFM #29) is turned on.

2. Cautions regarding EEPROM writing

If data is set in BFM #0, #5, #10 to #17, #32 to #35, #50 to #54 or #60 to #63, the data will be written in the
EEPROM of FX3U-4DA.
Do not turn off the power immediately after writing values in these buffer memories. H
The maximum number of EEPROM rewritable times is 10,000. Therefore, when creating a program, do not
FX3U-4AD-PT

frequently write data in the above buffer memories (BFM).

-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Buffer Memory (BFM)
FX3U-4DA (4-channel Analog Output) 5.4 Buffer Memory Details

5.4.13 BFM #38: Upper/lower limit function setting

Initial value: H0000
Numeric data type: Hexadecimal (H)
When any of the output data (BFM #1 to #4) becomes less than the lower limit (BMF #41 to #44) or more than
the upper limit (BFM #45 to #48), the relevant bit of the upper/lower limit function status (BFM #39) is turned
on.
The upper/lower limit function can be set valid or made invalid by writing a 4-digit hexadecimal number,
H , in BFM #38.

H
ch4 ch1
ch3 ch2

Set value Description

0 The upper/lower limit function is invalid.
1 The upper/lower limit function without output limitation is valid.*1
2 The upper/lower limit function with output limitation is valid.*2
Other than above
Invalid (setting values unchanged)
values

*1. When any value becomes less than the lower limit (BMF #41 to #44) or more than the upper limit
(BFM #45 to #48), the relevant bit of the upper/lower limit function status is turned on.

The value is output even if it exceeds

Analog value the upper limit.

Upper limit

Lower limit
The value is output even if it is
below the lower limit.

*2. When any value becomes less than the lower limit (BMF #41 to #44) or more than the upper limit
(BFM #45 to #48), the relevant bit of the upper/lower limit function status is turned on.
In this setting, analog values more than the upper limit and less than the lower limit are not output.

Analog value Values more than the upper limit are not
output.
Upper limit

Lower limit
Values less than the lower limit are
not output.

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FX3U-4DA (4-channel Analog Output) 5.4 Buffer Memory Details

A
5.4.14 BFM #39: Upper/lower limit function status

Common Items
Initial value: H0000
Numeric data type: Hexadecimal (H)
When any of the output data (BFM #1 to #4) is out of range between the lower limit and the upper limit (BFM
#41 to #48), the relevant bit is turned on. B

FX3UC-4AD
FX3U-4AD
1. Assignment to each bit of BFM #39

Bit Description
b0 Data output from channel 1 < Lower limit (BFM #41)
b1 Data output from channel 1 > Upper limit (BFM #45) C
b2 Data output from channel 2 < Lower limit (BFM #42)

FX3U-4AD-ADP
b3 Data output from channel 2 > Upper limit (BFM #46)
b4 Data output from channel 3 < Lower limit (BFM #43)
b5 Data output from channel 3 > Upper limit (BFM #47)
b6 Data output from channel 4 < Lower limit (BFM #44) D
b7 Data output from channel 4 > Upper limit (BFM #48)

FX3G-2AD-BD
b8 to b15 Not used

2. Cautions regarding use of the upper/lower limit function status

• The ON bits of the upper/lower limit function status are latched after the output data has returned to the
specified ranges between the upper and lower limits.
E

FX3U-4DA
• The upper/lower limit function status can be reset by the following methods.
- Use the upper/lower limit function status reset function (BFM #40).
- Turn the power supply off then on.

3. Upper/lower limit automatic transfer function (b1 of BFM #60)

If the upper/lower limit automatic transfer data register is specified in BFM #62, the data in BFM #39 can be
F

FX3U-4DA-ADP
transferred to a specified data register.
Only when an error is detected, data will be automatically transferred from the FX3U-4DA to the PLC. For this
reason, the PLC does not need the program for reading data, and the scan time of the PLC can be shortened.
→ For a detailed description of the status automatic transfer function, refer to Subsection 5.4.18.

G
5.4.15 BFM #40: Clearance of upper/lower limit function status

FX3G-1DA-BD
Initial value: H0000
Numeric data type: Hexadecimal (H)
The flags can be reset by turning on the following bits of BFM #40.
H
1. Assignment to each bit of BFM #40
FX3U-4AD-PT

Bit Description
b0 Clearance of lower limit status
-ADP

b1 Clearance of upper limit status

b2 to b15 Invalid I
FX3U-4AD-PTW

2. Operation to be performed after resetting

At the completion of status reset, the bits of BFM #40 will automatically turn off.
-ADP

J
FX3U-4AD-PNK
-ADP

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FX3U-4DA (4-channel Analog Output) 5.4 Buffer Memory Details

5.4.16 BFM #41 to #44: Lower limit values of upper/lower limit function
BFM #45 to #48: Upper limit values of upper/lower limit function

Initial value: See below

Numeric data type: Decimal (K)
When the upper/lower limit function has been made valid by the setting of BFM #38, set the upper and lower
limit values to be used.
The setting range depends on the output mode.

1. Setting range of upper and lower limits and initial values

Initial value
Output mode
Setting range Lower limit value Upper limit value
[BFM #0]
[BFM #41 to #44] [BFM #45 to 48]
0 -32640 to +32640 -32640 +32640
1 -10200 to +10200 -10200 +10200
2, 3 0 to +32640 0 +32640
4 0 to +20400 0 +20400

2. Cautions regarding upper and lower limit values setting

Check that the lower limit value is not equal to or more than the upper limit value.
If the lower limit value is equal to or more than the upper limit value, b6 of the error status (BFM #29) is turned
on.

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A
5.4.17 BFM #50: Setting of output corrective function by load resistance

Common Items
(only in voltage output mode)/BFM #51 to #54: Load resistance values

Initial value: BFM #50: H0000, BFM #51 to #54: K30000

Numeric data type: BFM #50: Hexadecimal (H), BFM #51 to #54: Decimal (K)

The output characteristics of FX3U-4DA have been adjusted at 30 kΩ load resistance as a factory default.
B

FX3UC-4AD
FX3U-4AD
When the load resistance is 1kΩ, the output deviation is approx. -4.3% to 20V in full scale, whereas the
output deviation is approx. 0.15% to 20V in full scale when the load resistance is 1MΩ. When the load
resistance is 30 kΩ or less (1 kΩ to 30 kΩ), the deviation of the output characteristics can be corrected by
specifying the output corrective function (BFM #50) and the load resistance values (BFM #51 to #54).

Analog value C

FX3U-4AD-ADP
The deviation of output characteristics is
corrected by the corrective function by load
+10V resistance.

-32000 D
32000 Digital value

FX3G-2AD-BD
: Output characteristics after correction

-10V : Output characteristics before correction

FX3U-4DA
1. Setting of output corrective function (BFM #50)
The corrective function by load resistance is valid or invalid by writing a 4-digit hexadecimal number,
H , in the output corrective function setting (BFM #50).
F
H

FX3U-4DA-ADP
ch4 ch1
ch3 ch2

Set value Description G

FX3G-1DA-BD
0 Corrective function by load resistance is invalid.
1 Corrective function by load resistance is valid.
Other than above
Invalid (setting values unchanged)
values

2. Setting range and initial value of load resistance (BFM #51 to #54) H
FX3U-4AD-PT

Set the load resistance value for each channel allocated to the following BFM.

BFM
Description Setting range (Ω) Initial value (Ω)
-ADP

number
#51 Load resistance value for channel 1
#52 Load resistance value for channel 2 I
1000 to 30000 30000
FX3U-4AD-PTW

#53 Load resistance value for channel 3

#54 Load resistance value for channel 4
-ADP

J
FX3U-4AD-PNK
-ADP

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FX3U-4DA (4-channel Analog Output) 5.4 Buffer Memory Details

3. Cautions regarding use of the output corrective function by load resistance

• While changing the settings, the output is stopped, and H0000 is automatically written in the output status
(BFM #6).
At the completion of writing, the output status (BFM #6) will automatically change to H1111, and the output
will be restarted.
• This function is valid only in the voltage output mode (mode 0 or 1).
• The corrective function by load resistance is valid only at a load resistance from 1 k to 30 kΩ.
• If a setting is out of the upper setting range, b7 of the error status BFM #29 is turned on.
• When not using this function, the output characteristics at a load resistance of 30 kΩ are applied.

4. Cautions regarding EEPROM writing

If data is set in BFM #0, #5, #10 to #17, #32 to #35, #50 to #54 or #60 to #63, the data will be written in the
EEPROM of FX3U-4DA.
Do not turn off the power immediately after writing values in these buffer memories.
The maximum number of EEPROM rewritable times is 10,000. Therefore, when creating a program, do not
frequently write data in the above buffer memories (BFM).

5.4.18 BFM #60: Status automatic transfer function setting

Initial value: H0000
Numeric data type: Hexadecimal (H)

When the bits, b0 to b2, of BFM #60 are turned on, the assigned functions (see the table below) are valid.
When the bits are turned off, the functions are invalid.

1. Assignment to each bit of BFM #60

Bit No. Description Reference

When the value of the error status (BFM #29) changes,
Subsection 5.4.10
b0 the status value is transferred to the data register
Subsection 5.4.19
specified by BFM #61.
When the value of the upper/lower limit function status
Subsection 5.4.14
b1 (BFM #39) changes, the status value is transferred to the
Subsection 5.4.20
data register specified by BFM #62.
When the value of the disconnection detection status
Subsection 5.4.9
b2 (BFM #28) changes, the status value is transferred to the
Subsection 5.4.21
data register specified by BFM #63.
b3 to b15 Invalid (setting values unchanged) -

2. Cautions regarding the status automatic transfer function

• While changing the settings, the output is stopped, and H0000 is automatically written in the output status
(BFM #6).
At the completion of writing, the output status (BFM #6) will automatically change to H1111, and the output
will be restarted.

3. Cautions regarding EEPROM writing

If data is written to BFM #0, #5, #10 to #17, #32 to #35, #50 to #54 or #60 to #63, the data will also be written
in the EEPROM of FX3U-4DA.
Do not turn off the power immediately after writing values in these buffer memories.
The maximum number of EEPROM rewritable times is 10,000. When creating a program, therefore, do not
frequently write data in the above buffer memories (BFM).

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FX3U-4DA (4-channel Analog Output) 5.4 Buffer Memory Details

A
5.4.19 BFM #61: Error status data automatic transfer-to data register specification

Common Items
Setting range: 0 to 7999
Initial value: K200
Numeric data type: Decimal (K)

Use this function to automatically transfer the error status data (BFM #29) to the data register specified in
B

FX3UC-4AD
FX3U-4AD
BFM #61.
When an error is detected, data will be automatically transferred from FX3U-4DA to the PLC. For this reason,
the PLC does not need a program for reading data, and the scan time of the PLC can be shortened.
→ For a detailed description of the error status (BFM #29), refer to Subsection 5.4.12.

1. If "BFM #61 = K200 (initial value)" C

FX3U-4AD-ADP
Specified data
Description
register
D200 Value of error status (BFM #29)

2. Cautions regarding error status automatic transfer function setting

D
• If a data is already specified for the other automatic transfer functions, do not specify the same data

FX3G-2AD-BD
register.
• This function is valid by turning on b0 of the status automatic transfer function setting (BFM #60).
• When a value out of the above setting range is set, b9 of the error status BFM #29 is turned on.
• The data set in BFM #61 will be retained in the EEPROM.
E
3. Cautions regarding EEPROM writing

FX3U-4DA
If data is set in BFM #0, #5, #10 to #17, #32 to #35, #50 to #54 or #60 to #63, the data will be written in the
EEPROM of FX3U-4DA.
Do not turn off the power immediately after writing values in these buffer memories.
The maximum number of EEPROM rewritable times is 10,000. Therefore, when creating a program, do not
frequently write data in the above buffer memories (BFM). F

FX3U-4DA-ADP
G

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Buffer Memory (BFM)
FX3U-4DA (4-channel Analog Output) 5.4 Buffer Memory Details

5.4.20 BFM #62: Upper/lower limit function status data automatic transfer-to data register
specification

Setting range: 0 to 7999

Initial value: K201
Numeric data type: Decimal (K)

Use this function to automatically transfer the upper/lower limit function status data (BFM #39) to the data
register specified in BFM #62.
Only when the value becomes more than the upper limit or less than the lower limit, data will be automatically
transferred from FX3U-4DA to the PLC. For this reason, the PLC does not need the program to read data, and
the scan time of the PLC can be shortened.
→ For a detailed description of the upper/lower limit function status (BFM #39),
refer to Subsection 5.4.14.

1. If "BFM #62 = K201 (initial value)"

Specified data
Description
register
D201 Value of upper/lower limit function status (BFM #39)

2. Cautions regarding upper/lower limit function status automatic transfer function setting
• If a data is already specified for the other automatic transfer functions, do not specify the same data
register.
• This function is valid by turning on b1 of the status automatic transfer function setting (BFM #60).
• When a value out of the above setting range is set, b9 of the error status BFM #29 is turned on.
• The data set in BFM #62 will be retained in the EEPROM.

3. Cautions regarding EEPROM writing

If data is set in BFM #0, #5, #10 to #17, #32 to #35, #50 to #54 or #60 to #63, the data will be written in the
EEPROM of FX3U-4DA.
Do not turn off the power immediately after writing values in these buffer memories.
The maximum number of EEPROM rewritable times is 10,000. When creating a program, therefore, do not
frequently write data in the above buffer memories (BFM).

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FX3U-4DA (4-channel Analog Output) 5.4 Buffer Memory Details

A
5.4.21 BFM #63: Specification of data register for automatic transfer at disconnection

Common Items
detection

Setting range: 0 to 7999

Initial value: K202
Numeric data type: Decimal (K) B

FX3UC-4AD
FX3U-4AD
Use this function to automatically transfer the disconnection detection status data (BFM #28) to the data
register specified in BFM #63.
Only when wire-break is detected, data will be automatically transferred from FX3U-4DA to the PLC. For this
reason, the PLC does not need the program for reading data, and the scan time of the PLC can be shortened.
→ For a detailed description of the disconnection detection status (BFM #28),
refer to Subsection 5.4.9. C

FX3U-4AD-ADP
1. If "BFM #63 = K202 (initial value)"

Specified data
Description
register
D202 Value of disconnection detection status (BFM #28)
D

FX3G-2AD-BD
2. Cautions regarding disconnection detection status automatic transfer function setting
• If a data is already specified for the other automatic transfer functions, do not specify the same data
register.
• This function is valid by turning on b2 of the status automatic transfer function setting (BFM #60).
• When a value out of the above setting range is set, b9 of the error status BFM #29 is turned on. E

FX3U-4DA
• The data set in BFM #63 will be retained in the EEPROM.

3. Cautions regarding EEPROM writing

If data is set in BFM #0, #5, #10 to #17, #32 to #35, #50 to #54 or #60 to #63, the data will be written in the
EEPROM of FX3U-4DA.
Do not turn off the power immediately after writing values in these buffer memories. F
The maximum number of EEPROM rewritable times is 10,000. Therefore, when creating a program, do not

FX3U-4DA-ADP
frequently write data in the above buffer memories (BFM).

5.4.22 BFM #80 to #3098: Table output function

Related BFM:
G

FX3G-1DA-BD
BFM #80 (start/stop command of table output function)
BFM #81 to #84 (output pattern setting of channels)
BFM #85 to #88 (output execution cycle number of channels)
BFM #89 (completion flag of table output function)
BFM #90 (table output error code)
BFM #91 (table output error source number) H
BFM #98 (data table head device number)
FX3U-4AD-PT

BFM #99 (data table transfer command)

BFM #100 to #398, •••, #2800 to #3098 (data table in patterns)
-ADP

Table output function: Sets predetermined output patterns as data table, and outputs analog signals
according to the data table.
→ For a detailed description of the table output function, refer to Chapter 6.
I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

E-37
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 6 Table Output Function
FX3U-4DA (4-channel Analog Output) 6.1 Outline of Table Output Function

6. Table Output Function

This chapter describes the table output function of FX3U-4DA

6.1 Outline of Table Output Function

1. Explanation of the function

This function sets predetermined output patterns as data table and outputs analog signals according to the
data table.

2. Outline of procedures for table output function

Refer to Section 6.2

Data table is prepared in the data registers
Preparation of data table*
(D1000 to 7999) or the expansion registers (R0
to R32767).
Refer to Section 6.3

Transfer of data table* The data table is transferred from the PLC main
unit to the relevant buffer memory of FX3U-4DA.
Refer to Section 6.4

Execution of output table Setting and execution

• Output patterns (BFM #81 to #84) of each
channel
• The numbers of table output execution cycle
number (BFM #85 to #88) of each channel
• Start/stop of table output function for each
channel command (BFM #80)

* It is possible to write the data table directly in FX3U-4DA using a program (TO instruction, etc.).

E-38
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 6 Table Output Function
FX3U-4DA (4-channel Analog Output) 6.2 Preparation of data table

A
6.2 Preparation of data table

Common Items
1. Outline of data table
The data table to be prepared in the PLC consists of the following items.
(1) Number of patterns (1 to 10 patterns)
(2) Each pattern
B

FX3UC-4AD
FX3U-4AD
(3) Number of points in each pattern (1 to 99 points)
(4) Condition after output at final point in each pattern
(5) Points in each pattern
(6) Data to be output at each point
(7) Output update time at each point
(8) Unit of output update time at each point, and point-to-point interpolation method C

FX3U-4AD-ADP
2. Preparation of data table
Prepare the data table consisting of the following items in the data registers (D1000 to D7999) in the PLC
main unit or the expansion registers (R0 to R32767).
It is convenient to prepare the data table on spreadsheet software and copy and paste the data to the device
memory of GX Developer.
D

FX3G-2AD-BD
Setting item Device number in PLC assignment
(1) Number of patterns (x) Device number specified in BFM #98
(3) Number of points in pattern 1 (n) Device number+1 specified in BFM #98
(2) Pattern 1

(4) Condition after output at final point in pattern Device number+2 specified in BFM #98
(6) Output data Device number+3 specified in BFM #98 E
(7) Output update time Device number+4 specified in BFM #98

FX3U-4DA
(5) Point 1
(8) Unit of output update time at each point,
Device number+5 specified in BFM #98
and point-to-point interpolation method
. . .
. . .
. . . F
(6) Output data

FX3U-4DA-ADP
(7) Output update time
(5) Point n
(8) Unit of output update time at each point,
and point-to-point interpolation method
. .
. . G
. .

FX3G-1DA-BD
(3) Number of points in pattern X (m)
(2) Pattern X

(4) Condition after output at final point in pattern

(6) Output data
(7) Output update time
(5) Point 1
(8) Unit of output update time at each point,
H
FX3U-4AD-PT

and point-to-point interpolation method

. .
. .
-ADP

. .
.
(6) Output data
(7) Output update time
.
.
I
(5) Point m
FX3U-4AD-PTW

(8) Unit of output update time at each point, Device specified in BFM #98 + total number
and point-to-point interpolation method of data tables -1*1
-ADP

Note) The device number marked by *1 should not exceed D7999 or R32767.
For a detailed description of the data table items (1) to (8), refer to the following pages.
J
FX3U-4AD-PNK
-ADP

E-39
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 6 Table Output Function
FX3U-4DA (4-channel Analog Output) 6.2 Preparation of data table

3. Details of data table

(1) Number of patterns (number of data items: 1)
Store the number of patterns at the top of the data table (device specified in BFM #98).
Up to 10 patterns can be prepared. The setting range of the number of patterns is 1 to 10.
When the number of patterns is out of the setting range, table output error code K111 is stored in BFM
#90, the device number in which the number of patterns is specified is stored in BFM #91, and b8 in error
status BFM #29 is turned on.

(2) Pattern (number of data items: 5 to 299)

A pattern refers to a predetermined flow of output. The contents of a pattern are defined by a combination
of points.
Prepare pattern data following the number of patterns to form the data table.
Up to 10 patterns can be prepared.

(3) Number of points (number of data items: 1)

Store the number of points to be used in each pattern at the top of the pattern.
Up to 99 points can be provided. The setting range of number of points is 1 to 99.
When the number of points is out of the setting range, the error code is stored in the table output error
code BFM #90, the device number or the buffer memory that has developed the table output error is
stored in BFM #91, and b8 of the error status BFM #29 is turned on.

(4) Condition after output at final point in pattern (number of data items: 1)
The condition after output at the final point in a pattern can be set to continue to output the output signal at
the final point or output the offset signal.
The setting is shown in the following table.

Set value Condition after output at final point

K0 Continuing to output the output signal at the final point
K1 Outputting the offset signal
Other than above
Invalid*
values

* When a value out of the setting range is set, the error code is stored in the table output error code BFM #90,
the device number or the buffer memory that has developed the table output error is stored in BFM #91,
and b8 of the error status BFM #29 is turned on.

(5) Point (number of data items: 3)

Data output point. The data indicating a point consist of output data, output update time, output update
time unit and point-to-point interpolation method.
Each pattern can have up to 99 points.

(6) Output data (number of data items: 1)

Digital value corresponding to the analog signal to be output at the point
The setting range depends on the output mode and offset/gain setting.

(7) Output update time (number of data items: 1)

Output time to the next point. The output update time for the n-th point is the output time between the n-th
point and the (n+1)-th point.
When the pattern is repeated, the output update time at the final point is used as the output time between
the final point and the first point.
When the pattern is not repeated, the output update time for the final point is ignored.
The setting range is 1 to 32767. For the unit, refer to Item (8).
When a value out of the setting range is set, the error code is stored in the table output error code BFM
#90, the device number or the buffer memory that has developed the table output error is stored in BFM
#91, and b8 of the error status BFM #29 is turned on.

E-40
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 6 Table Output Function
FX3U-4DA (4-channel Analog Output) 6.2 Preparation of data table

A
(8) Output update time unit and point-to-point interpolation method (number of data items: 1)

Common Items
Set the unit of the output update time and the point-to-point interpolation method for each point.
The output update time unit and the point-to-point interpolation method for the n-th point are applied
between the n-th point and the (n+1)-th point.
When the pattern is repeated, the output update time unit and the point-to-point interpolation method are
applied between the final point and the first point.
When the pattern is not repeated, the output update time unit and the point-to-point interpolation method
B

FX3UC-4AD
FX3U-4AD
for the final point are ignored.
A 4-digit hexadecimal number, H , is allocated as shown below.

H
Invalid* Output updating time unit C
Invalid* Point-to-point interpolation method

FX3U-4AD-ADP
• Setting of output update time unit

Set value Output update time unit

D
0 10 ms

FX3G-2AD-BD
1 100 ms
2 1s
3 1 min
Other than above
values
Invalid* E

FX3U-4DA
• Interpolation method
Data output between points are interpolated every 1 ms and automatically updated.

Set value Interpolation method

0 No interpolation (Output data is held to the next point.) F
Linear interpolation (Data output between points are

FX3U-4DA-ADP
1
interpolated in the shape of a straight line.)
S-shaped interpolation (Data output between points are
2 interpolated in the shape of an S-shaped as shown
below.)
Other than above
Invalid*
G
values

FX3G-1DA-BD
• S-shaped interpolation

Output data
D/8
Point n+1 H
FX3U-4AD-PT

D
-ADP

D/2 D/8
Point n
I
FX3U-4AD-PTW

Time

T/4 T/4 T/4 T/4

-ADP

T
J
* When a value out of the setting range is set, the error code is stored in the table output error code BFM #90,
FX3U-4AD-PNK

the device number or the buffer memory that has developed the table output error is stored in BFM #91,
and b8 of the error status BFM #29 is turned on.
-ADP

E-41
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 6 Table Output Function
FX3U-4DA (4-channel Analog Output) 6.2 Preparation of data table

4. Example of data table

The following table shows an example of data table containing two patterns prepared in and after D5000.
Patterns 1 and 2 are in the output mode 1.

Data
Set value Description
register
D5000 K2 Number of patterns 2 patterns
D5001 K3 Number of points in pattern 1 3 points

Pattern 1
Holding of value
D5002 K0 Setting of condition after output at final point in pattern 1
output at final point
D5003 K3000 Data to be output at point 1 in pattern 1 3V
D5004 K18 Point 1 Output update time at point 1 in pattern 1 1800 ms
Output update time unit at point 1 in pattern 1 100 ms
D5005 H0021
Point-to-point interpolation method S-shaped interpolation
D5006 K8000 Data to be output at point 2 in pattern 1 8V
Point 2

D5007 K26 Output update time at point 2 in pattern 1 2600 ms

Output update time unit at point 2 in pattern 1 100 ms
D5008 H0011
Point-to-point interpolation method Linear interpolation
D5009 K5000 Data to be output at point 3 in pattern 1 5V
Point 3

D5010 K5 Output update time at point 3 in pattern 1 500 ms

Output update time unit at point 3 in pattern 1 100 ms
D5011 H0011
Point-to-point interpolation method Linear interpolation
D5012 K4 Number of points in pattern 2 4 points
Pattern 2

D5013 K1 Setting of condition after output at final point in pattern 2 Output of offset value
D5014 K2000 Data to be output at point 1 in pattern 2 2V
Point 1

D5015 K6 Output update time at point 1 in pattern 2 6s

Output update time unit at point 1 in pattern 2 1s
D5016 H0022
Point-to-point interpolation method S-shaped interpolation
D5017 K10000 Data to be output at point 2 in pattern 2 10V
Point 2

D5018 K15 Output update time at point 2 in pattern 2 15s

Output update time unit at point 2 in pattern 2 1s
D5019 H0002
Point-to-point interpolation method No interpolation
D5020 K500 Data to be output at point 3 in pattern 2 0.5V
Point 3

D5021 K45 Output update time at point 3 in pattern 2 4500 ms

Output update time unit at point 3 in pattern 2 100 ms
D5022 H0021
Point-to-point interpolation method S-shaped interpolation
D5023 K4000 Data to be output at point 4 in pattern 2 4V
Point 4

D5024 K9 Output update time at point 4 in pattern 2 9s

Output update time unit at point 4 in pattern 2 1s
D5025 H0012
Point-to-point interpolation method Linear interpolation

E-42
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 6 Table Output Function
FX3U-4DA (4-channel Analog Output) 6.2 Preparation of data table

A
5. Example of pattern output

Common Items
Data can be output in a predetermined pattern as shown below. (Example of pattern 1 in output mode 1
shown on the previous page)

When the pattern

is repeated
(BFM #85 to #88
B

FX3UC-4AD
FX3U-4AD
are set to 0 or 2 or
Output higher.)
value
Point 2
8V
Linear
S-shaped
interpolation C
interpolation

FX3U-4AD-ADP
5V
Point 3
Point 1
3V
D

FX3G-2AD-BD
Time
Output update Output update Output update
time at point 1
(1800 ms)
time at point 2
(2600 ms)
time at point 3
(500 ms)
E

FX3U-4DA
6. Caution when preparing the data table
• Prepare the data table in continuous data registers in the PLC main unit or continuous expansion registers.
(Prepare data without spaces between patterns or points.)
If data has spaces, the data cannot be transferred normally to the buffer memory in FX3U-4DA. F
→ For a detailed description of data table errors, refer to Section 6.5.

FX3U-4DA-ADP
G

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

E-43
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 6 Table Output Function
FX3U-4DA (4-channel Analog Output) 6.3 Procedures for transferring data table to buffer memory

6.3 Procedures for transferring data table to buffer memory

The data table prepared in the data registers (D1000 to D7999) in the PLC or the expansion registers (R0 to
R32767) are transferred to the buffer memory in FX3U-4DA.
The transfer procedures are shown below.

1. Specify the head device number of the data table to be transferred. (BFM #98, initial value:
K1000)
Specify the head device number of the data table in BFM #98.
The setting range is K1000 to K7994 for the data registers (D1000 to D7999) (because at least six points are
occupied) or K0 to K32762 for the expansion registers (R0 to R32767) (because at least six points are
occupied).
Example) When the data table is set starting from D1000, set K1000 in BFM #98.
When a value out of the setting range is set, the error code K21 is stored in the table output error code BFM
#90, the number of the buffer memory, K98, that has developed the table output error is stored in BFM #91,
and b8 of the error status BFM #29 is turned on.

2. Start transferring the data table. (BFM #99, initial value: H0000)
Transfer the data table from the PLC to the FX3U-4DA using the data table transfer command (BFM #99).

H
Invalid* Data table transfer command
Invalid* Register type

• Data table transfer command

Set value Transfer command

0 No processing
1 Execution of transfer of data table
Other than above
Invalid*
values

• Register type

Set value Register type

Transfer of data table from data registers
0
(D1000 to 7999)
Transfer of data table from expansion registers
1
(R0 to 32767)
Other than above
Invalid*
values

* When a value out of the setting range is set, the error code is stored in the table output error code BFM #90,
the number of the buffer memory, K99, that has developed the table output error is stored in BFM #91, and
b8 of the error status BFM #29 is turned on.

Example) When K1000 is written in the head device number of data table (BFM #98) and H0001 is written
in the data table transfer command (BFM #99), the data table will be transferred from the data
register D1000.

E-44
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 6 Table Output Function
FX3U-4DA (4-channel Analog Output) 6.3 Procedures for transferring data table to buffer memory

A
3. Buffer memory contents in FX3U-4DA after transfer

Common Items
The transferred data table is stored in the following buffer memory areas.

BFM
Description
number
#100
Pattern 1
Number of points B
#101 Condition after output at final point in pattern

FX3UC-4AD
FX3U-4AD
#102 Output data
#103 Output update time
Point 1
Unit of output update time at each point, and point-to-
#104
point interpolation method
. . . C
. . .

FX3U-4AD-ADP
. . .
#396 Output data
#397 Output update time
Point 99
Unit of output update time at each point, and point-to-
#398
point interpolation method D

FX3G-2AD-BD
#399 Not used
. . .
. . .
. . .
#2800 Number of points
#2801 Condition after output at final point in pattern
E

FX3U-4DA
#2802 Output data
#2803 Output update time
Point 1
Unit of output update time at each point, and point-to-
#2804
Pattern 10

point interpolation method

.
.
.
.
.
.
F

FX3U-4DA-ADP
. . .
#3096 Output data
#3097 Output update time
Point 99
Unit of output update time at each point, and point-to-
#3098
point interpolation method G

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

E-45
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 6 Table Output Function
FX3U-4DA (4-channel Analog Output) 6.3 Procedures for transferring data table to buffer memory

4. Example of transfer of data table

The data table below shows the writing of K5000 to BFM#98 and H0001 to BFM#99. Data starting from
D5000 is transferred to the buffer memory in the FX3U-4DA.

PLC main unit FX3U-4DA

BFM Source data
Data register Set value Set value
number register
D5000 K2 #100 K3 D5001
D5001 K3 #101 K0 D5002
D5002 K0 #102 K3000 D5003
D5003 K3000 #103 K18 D5004
D5004 K18 #104 H0021 D5005
D5005 H0021 #105 K8000 D5006
D5006 K8000 #106 K26 D5007
D5007 K26 #107 H0011 D5008
D5008 H0011 #108 K5000 D5009
D5009 K5000 #109 K5 D5010
D5010 K5 #110 H0011 D5011
D5011 H0011 :
Transfer to buffer - -
D5012 K4 :
memory
D5013 K1 #400 K4 D5012
D5014 K2000 #401 K1 D5013
D5015 K6 #402 K2000 D5014
D5016 H0022 #403 K6 D5015
D5017 K10000 #404 H0022 D5016
D5018 K15 #405 K10000 D5017
D5019 H0002 #406 K15 D5018
D5020 K500 #407 H0002 D5019
D5021 K45 #408 K500 D5020
D5022 H0021 #409 K45 D5021
D5023 K4000 #410 H0021 D5022
D5024 K9 #411 K4000 D5023
D5025 H0012 #412 K9 D5024
#413 H0012 D5025

E-46
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 6 Table Output Function
FX3U-4DA (4-channel Analog Output) 6.3 Procedures for transferring data table to buffer memory

A
5. Cautions regarding data table transfer

Common Items
• While the table output function is executed, it is impossible to start transferring the data table.
• The number of patterns is not transferred to the buffer memory in FX3U-4DA.
• The transferred data table is stored in the buffer memory in FX3U-4DA. The data table stored in FX3U-4DA
will be erased when power is turned off. Therefore, it is necessary to transfer the data table after rebooting
the power.
B

FX3UC-4AD
FX3U-4AD
• At completion of transfer, BFM #99 will automatically change to H0000. Also when transfer is stopped due
to an error, BFM #99 will automatically change to H0000. When BFM #99 changes to H0000, check the
error flag.
→ For a detailed description of errors related to table output, refer to Subsection 6.5.
• If an error occurs during transfer of the data table, the data up to the error is transferred. Subsequent data C
is not transferred.

FX3U-4AD-ADP
• It is possible to write the data table directly in the buffer memory without using the data table transfer
command (BFM #99).
In this case, the correctness of the data table is not evaluated until the table is output by the table output
start/stop function (BFM #80).
If a data table with incorrect data is output, the data up to the point where incorrect data occurs is output.
At the point where incorrect data occurs, an error is registered and only the data output just before the
D

FX3G-2AD-BD
occurrence of the error is held.
• Execute the data table transfer command (BFM #99) as a pulse execution type instruction.
• During transfer of the data table, the scan time increases by up to about 10 ms.
• The standard data table transfer time is obtained by the following formula.
E
Number of *

FX3U-4DA
data table items
Transfer time = (Scan time) × × (number of FX3U-4DA units connected to main unit)
64

* Fractions omitted
Example) F
• Scan time: 50 ms (including increase in scan time caused by data table transfer)

FX3U-4DA-ADP
• Number of data table items to be transferred: 2991 items (when the number of patterns is 10
and the number of points in each pattern is 99)
• Number of units connected to FX3U-4DA: 8 units

2991
G
Transfer time = (50 ms) × × (8 units)

FX3G-1DA-BD
64
= 18800 ms

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

E-47
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 6 Table Output Function
FX3U-4DA (4-channel Analog Output) 6.4 Procedures for executing table output function

6.4 Procedures for executing table output function

After setting the output patterns for the channels (BFM #81 to #84) and the number outputs for the
channels (BFM #85 to #88), turn on the table output function start/stop command (BFM #80) to
execute the table output function.

1. Set the output patterns for the channels. (BFM #81 to #84, initial value: K1)
Set the output patterns for the channels in BFM #81 to #84.
The output pattern can be changed in the middle of outputting the table.
Setting range for BFM #81 to #84: 1 to 10
When a value out of the setting range is set, the error code K31 is stored in the table output error code BFM
#90, the number of the buffer memory (K81 to K84) that has developed the table output error is stored in BFM
#91, and b8 of the error status BFM #29 is turned on.

2. Set the number of table outputs for the channels. (BFM #85 to #88, initial value: K0)
Set the number of table outputs for the channels in BFM #85 to #88.
The number of outputs can be changed even during outputting the table.
Setting range for BFM #85 to #88: 0 to 32767
When 0 is set, output of the table will be repeated until the table output is stopped by BFM #80.
When a value out of the setting range is set, the error code K32 is stored in the table output error code BFM
#90, the number of the buffer memory (K85 to K88) that has developed the table output error is stored in BFM
#91, and b8 of the error status BFM #29 is turned on.

3. Table output start/stop (BFM #80, initial value: H0000)

Table output is started and stopped by setting BFM #80 as shown below.

H
ch4 ch1
ch3 ch2

Set value Description

0 The table output function of each channel is stopped.
The table output function of each channel is started.
1 After output of the final point in the last cycle, 0 will be
automatically written.
Other than above
Invalid*
values

* When a value out of the setting range is set, the error code K33 is stored in the table output error code BFM
#90, the number of the buffer memory (K80) that has developed the table output error is stored in BFM #91,
and b8 of the error status BFM #29 is turned on.

E-48
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 6 Table Output Function
FX3U-4DA (4-channel Analog Output) 6.4 Procedures for executing table output function

A
4. Cautions regarding table output

Common Items
• When BFM #99 (data table transfer command) is not H0000, the table output function cannot be started.
• When an error occurs during transfer of data table, start the table output after setting the correct data table.
• While the table output completion flag BFM #89 is ON, output of a new table cannot be started.
• The table output function is valid only while the PLC is in RUN mode. B
• While even a single channel is outputting data table (BFM #80 is not H0000), it is prohibited to change

FX3UC-4AD
FX3U-4AD
BFM #0, #5, #9 to #17, #19, #20, #32 to #35, #38, #41 to 48, #50 to #54 and #60 to #63.
• The pattern can be changed during output as shown below. (The change is invalid while the table output
completion flag BFM #89 is ON.)

Output C
value Pattern 5

FX3U-4AD-ADP
Pattern 1

The data output in pattern 1 is

ignored, and data is output at
point 1 in output pattern 5.
D

FX3G-2AD-BD
Time
Table output start Change from output pattern
1 to output pattern 5
E

FX3U-4DA
5. Check the table output completion flag. (BFM #89, initial value: H0000)
The value in BFM #89 indicates whether the table output from each channel has been completed.
After data is output at the final point in the last cycle of a pattern, the table output completion flag is turned on.
When the table output (BFM#80) is set to be stopped, the table output completion flag is turned off. F

FX3U-4DA-ADP
H
ch4 ch1
ch3 ch2
G

FX3G-1DA-BD
Value for each
Table output completion flag
channel
0 Table output uncompleted
1 Table output completed
H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

E-49
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 6 Table Output Function
FX3U-4DA (4-channel Analog Output) 6.5 Details of table output error

6.5 Details of table output error

When an error related to the table output function occurs, the error code is stored in BFM #90, and the device
number or the buffer memory that has developed the error is stored in BFM #91.

1. Error code table and details of error source numbers

Error code Table output error source number

Details of error
(BFM #90) (BFM #91)
The number of patterns in the data table that is held in Device number where the number of
K111 the PLC does not meet the following requirement. patterns is specified (same as the head
1 ≤ Number of patterns ≤ 10 device number in the data table)
The number of points in the data table that is held in the
Device number where the number of
K121 PLC does not meet the following requirement.
patterns is specified
1 ≤ Number of patterns ≤ 99
The number of points in the data table that is held in the
Number of BFM where the number of
K122 buffer memory does not meet the following requirement.
points is specified
1 ≤ Number of points ≤ 99
"The condition after output at final point in pattern" Device number where "the condition after
K131 specified in the data table that is held in the PLC is not 0 the final point output point in pattern" is
or 1. specified
"The condition after output at final point in pattern"
Number of BFM where "the condition after
K132 specified in the data table that is held in the buffer
output point in the pattern" is specified
memory is not 0 or 1.
The output update time in the data table that is held in the
Device number where the output update
K151 PLC does not meet the following requirement.
time is specified
1 ≤ Output update time ≤ 32767
The output update time in the data table that is held in the
Number of BFM where the output update
K152 buffer memory does not meet the following requirement.
time is specified
1 ≤ Output update time ≤ 32767
The output update time unit in the data table that is held Device number where the output update
K161
in the PLC is not 0, 1, 2 or 3. time unit is specified
The output update time unit in the data table that is held Number of BFM where the output update
K162
in the buffer memory is not 0, 1, 2 or 3. time unit is specified
The interpolation method in the data table that is held in Device number where the interpolation
K171
the PLC is not 0, 1 or 2. method is specified
The interpolation method in the data table that is held in Number of BFM where the interpolation
K172
the buffer memory is not 0, 1 or 2. method is specified
The head device number BFM #98 in the data table to be
K21 K98
transferred is out of the setting range.
The value indicated by b0 to b3 of the transfer command
K22 K99
BFM #99 is not 0 or 1.
The value indicated by b4 to b7 of the source register
K23 K99
type in BFM #99 is not 0 or 1.
Any of the output patterns BFM #81 to #84 does not meet
K31 the following requirement. One of K81 to K84
1 ≤ Output pattern ≤ 10
The number of table outputs in BFM #85 to #88 does not
K32 meet the following requirement. One of K85 to K88
0 ≤ Number of repetitions of output ≤ 32767
The bit corresponding to each channel in the table output
K33 K80
start/stop command in BFM #80 is not 0 or 1.

E-50
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 6 Table Output Function
FX3U-4DA (4-channel Analog Output) 6.5 Details of table output error

A
2. Cautions regarding table output errors

Common Items
• Errors in data table
When the data table in the PLC contains an error, the error can be detected during transfer of the data to
the buffer memory in FX3U-4DA. In this case, the error code (BFM #90) is K1 1, and the device number is
written as the error source (BFM #91).
If an error is caused in the data table by directly rewriting the data in BFM after the data table is transferred, B
the error can be detected when the table is output using incorrect data. In this case, the error code (BFM

FX3UC-4AD
FX3U-4AD
#90) is K1 2, and the BFM number is written as the error source (BFM #91).
• Error during transfer of the data table
While transferring of the data table, an error (error codes K31 to K33) does not occur even when the BFM
#80 (table output function start/stop) is set to a value out of the setting range. An error occurs after the
completion of the transfer of the data table. C
• Error during output of the table

FX3U-4AD-ADP
Even if the output value is scaled over during output of the table, the output of the table will not be stopped.
However, while the output value is scaled over, b10 (scale over) of the error status BFM #29 stays on.
When an error (error codes K122 to K172, K31 to K33) occurs during output of the table, the output of the
table is cancelled and the analog output value just before the occurrence of the error is retained.
• Table output errors (BFM #90) and table output error source numbers (BFM #91) are not retained. They D
will be cleared when the next data table transfer command is given or the table output start function is

FX3G-2AD-BD
executed.

FX3U-4DA
F

FX3U-4DA-ADP
G

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

E-51
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 6 Table Output Function
FX3U-4DA (4-channel Analog Output) 6.6 Examples uses of table output function

6.6 Examples uses of table output function

[Uses of table output function]
• Inverter frequency setting, servo speed control, etc.

1. Inverter frequency setting

The output frequency can be controlled by inputting analog signals (e.g. voltage from 0 to 10 V and current
from 4 to 20 mA) to inverter frequency setting signals.
The analog signals and output signals have the following proportional relationship.

Output
frequency
(Hz)
60

30

0
5 10V
Analog signal

To control the frequency as shown below, where control the analog signal is proportional to the frequency use
the table output function.

Output
frequency
(Hz)

60

30

0
Time

Example of table output

Output
voltage (V)
Point 2 Point 3
10
No interpolation
S-shaped S-shaped
interpolation interpolation
5

Point 4
0 Point 1
Time
Output update Output update Output update
time at point 1 time at point 2 time at point 3

E-52
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 7 Changing Output Characteristic
FX3U-4DA (4-channel Analog Output) 7.1 Procedure for Changing Output Characteristics

Common Items
7. Changing Output Characteristic
For FX3U-4DA, the standard output characteristics are provided for each output mode (BFM #0)at the time of B
factory shipment.

FX3UC-4AD
FX3U-4AD
Changing the offset data (BFM #10 to #13) and gain data (BFM #14 to #17) can change the output
characteristics of each channel. This chapter describes how to change the output characteristics.

7.1 Procedure for Changing Output Characteristics

C

FX3U-4AD-ADP
1 Cancel the setting change prohibition mode.
If setting change is prohibited, write K3030 in BFM #19. The setting change prohibition mode will
be canceled.
D
2

FX3G-2AD-BD
Determine the output mode (BFM #0).
Determine the output mode (BFM #0) optimum for the selected channels and the voltage/current
specifications.

Set value (HEX) Output mode Analog output range Digital input range E

FX3U-4DA
0 Voltage output mode -10V to +10V -32000 to +32000
Voltage output analog value mV
1 The characteristic cannot be changed.
specification mode
2 Current output mode 0mA to 20mA 0 to 32000
3 Current output mode
Current output analog value µA
4mA to 20mA 0 to 32000
F
4 The characteristic cannot be changed.

FX3U-4DA-ADP
specification mode
5 to E Setting not allowed - -
F Channel not used - -

Example: Enter "HFF00" in BFM to set output mode 0 for channels 1 and 2 and prevent use chan- G
nels 3 and 4

FX3G-1DA-BD
Cautions regarding data setting
• If a value "1" or "4" is set for a channel, the output characteristics of the channel cannot be changed.
• Set the optimum output mode for the analog signal to be output.
H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

E-53
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 7 Changing Output Characteristic
FX3U-4DA (4-channel Analog Output) 7.1 Procedure for Changing Output Characteristics

3 Determine the output characteristics to be changed.

Example: Change to output voltage of 1 to 5 V with digital values 0 to 32000

Output mode: 0
Output characteristics provided at the time Output characteristics newly provided
of factory shipment

Voltage output value Voltage output value

+10.2V
+10V 5V

Digital 1V Digital
-32000 0 value value
+32000 0 32000

-10V
-10.2V

4 Determine the offset data.

Determine the analog output value for the digital output value of 0.
Set the analog output value in mV for the voltage output mode, and the analog output value in µA
for the current output mode.
Example: To set the offset value of 1 V, set 1000 mV.
→ For a detailed description of the offset data, refer to Subsection 5.4.6.

5 Determine the gain data.

Determine the analog output value for the digital output value of 16000.
Set the analog output value in mV for the voltage output mode, and the analog output value in µA
for the current output mode.
Example: To set the gain value of 3 V, set 3000 mV.
(5-1)÷2+1 = 3V (3000 mV)
→ For a detailed description of the gain data, refer to Subsection 5.4.6.

E-54
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 7 Changing Output Characteristic
FX3U-4DA (4-channel Analog Output) 7.1 Procedure for Changing Output Characteristics

A
6

Common Items
Create a sequence program.
To change the output characteristics, write the offset data (BFM #10 to #13) and the gain data
(BFM #14 to #17) in the sequence program, and then turn on the corresponding bit of BFM #9 for
the corresponding channel.
B
Example: Program for changing the output characteristics of channels 1 and 2 (For FX3U, FX3UC

FX3UC-4AD
FX3U-4AD
Series PLCs):

X000
FNC 12 Cancellation of setting change
K3030 U0\G19 prohibition mode
MOV P

Output mode specification for

C
FNC 12 HFF00 U0\G0

FX3U-4AD-ADP
MOV P channels 1 to 4

SET M0

M0
K50
T0
D
T0

FX3G-2AD-BD
FNC 16 K1000 U0\G10 K2 Setting of offset data (channels 1 and 2)
FMOV P

FNC 16 K3000 U0\G14 K2 Setting of gain data (channels 1 and 2)

FMOV P

FNC 12 H0003 U0\G9 Offset/gain setting value write command

E
MOV P

FX3U-4DA
FNC 12 K0 U0\G19 Setting change prohibition
MOV P

F
7 Transfer the sequence program to change the output characteristics.

FX3U-4DA-ADP
Transfer the sequence program, and start the PLC.
After the PLC is started and the output characteristic write command (X000) is turned on, the offset
data and gain data will be written.
Since the offset data and gain data are stored in the EEPROM incorporated in FX3U-4DA, it is pos-
G

FX3G-1DA-BD
sible to delete the pre-written sequence program.

8 Check the analog output signals

Check that the output analog signals correspond to the set output data.
→ If analog signals are not correctly output, refer to Chapter 9 "Troubleshooting."
H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

E-55
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 8 Examples of Practical Programs
FX3U-4DA (4-channel Analog Output) 8.1 Example of Program for Analog Output Operation (Regular Operation)

8. Examples of Practical Programs

8.1 Example of Program for Analog Output Operation (Regular Operation)

When you want to use the initial output characteristics but do not need to use the status information, you can
operate the PLC with a simple program as shown below.

1. Conditions
The sequence program described in this section is under the following conditions.
1) System configuration
FX3U-4DA (unit No.0) should be connected to the FX3U Series PLC.
2) Output mode
Channels 1 and 2 should be set to mode 0 (voltage output, -10 V to +10 V).
Channel 3 should be set to mode 3 (current output, 4 mA to 20 mA).
Channel 4 should be set to mode 2 (current output, 0 mA to 20 mA).
- For FX3U, FX3UC Series PLCs

Initial pulse
Transfer H2300 to BFM #0 (output modes of
M8002 channels 1 to 4).
FNC 12 H2300 U0\G0 ch1 and ch2: Voltage output (-10 to +10 V),
MOV P output mode 0
RUN monitor ch3: Current output (4 mA to 20 mA), output
M8000 mode 3
K50 * ch4: Current output (0 mA to 20 mA), output
T0 mode 2

Data to be output to channel 1 is written in D0. Store the data to be output to channels 1 to 4
Data to be output to channel 2 is written in D1. in D0 to D3 in the following ranges.
Data to be output to channel 3 is written in D2. D0 and D1: -32000 to +32000
Data to be output to channel 4 is written in D3. D2 and D3: 0 to 32000

T0 D0→BFM #1 (output to channel 1)

FNC 15 D0 U0\G1 K4 D1→BFM #2 (output to channel 2)
BMOV D2→BFM #3 (output to channel 3)
D3→BFM #4 (output to channel 4)
* After setting the output mode, set the data writing time (waiting time) to 5 seconds or more for each
setting. The specified output mode will be retained even if power failure occurs. After the output mode
is specified, if the same output mode is used, it is not necessary to set the output mode and the waiting
time (T0 K50).

- For FX3G, FX3U, FX3UC Series PLCs

Initial pulse
Transfer H2300 to BFM #0 (output modes of
M8002 channels 1 to 4).
FNC 79 K0 K0 H2300 K1 ch1 and ch2: Voltage output (-10 to +10 V),
TO P output mode 0
RUN monitor ch3: Current output (4 mA to 20 mA), output
M8000 mode 3
K50 * ch4: Current output (0 mA to 20 mA), output
T0 mode 2

Data to be output to channel 1 is written in D0. Store the data to be output to channels 1 to 4
Data to be output to channel 2 is written in D1. in D0 to D3 in the following ranges.
Data to be output to channel 3 is written in D2. D0 and D1: -32000 to +32000
Data to be output to channel 4 is written in D3. D2 and D3: 0 to 32000

T0 D0→BFM #1 (output to channel 1)

FNC 79 K0 K1 D0 K4 D1→BFM #2 (output to channel 2)
TO D2→BFM #3 (output to channel 3)
D3→BFM #4 (output to channel 4)
* After setting the output mode, set the data writing time (waiting time) to 5 seconds or more for each
setting. The specified output mode will be retained even if power failure occurs. After the output mode
is specified, if the same output mode is used, it is not necessary to set the output mode and the waiting
time (T0 K50).

E-56
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 8 Examples of Practical Programs
FX3U-4DA (4-channel Analog Output) 8.2 Example of Program using Useful Functions

A
8.2 Example of Program using Useful Functions

Common Items
This section describes a practical program that uses the disconnection detection function (BFM #28), upper/
lower limit function (BFM #38 to #48), corrective function by load resistance (BFM #50 to #54) and status
automatic transfer function (BFM #60 to #63) of FX3U-4DA.

1. Conditions
B

FX3UC-4AD
FX3U-4AD
The sequence program described in this section is created under the following conditions.
1) System configuration
FX3U-4DA (unit No.0) should be connected to the FX3U Series PLC.
2) Output mode
Channels 1 and 2 should be set to mode 0 (voltage output, -10 V to +10 V). C
Channels 3 and 4 should be set to mode 2 (current output, 0 mA to 20 mA).

FX3U-4AD-ADP
3) Convenient functions
The disconnection detection function, upper/lower limit function, corrective function by load resistance
and status automatic transfer function are used.
4) Device assignment
Device Description
D

FX3G-2AD-BD
X000 Clearance of upper/lower limit function status data
X001 Clearance of error status data
X002 Clearance of disconnection detection status data
Input D10 Data to be output from channel 1
D11 Data to be output from channel 2 E

FX3U-4DA
D12 Data to be output from channel 3
D13 Data to be output from channel 4
Y000 Output of channel-1 lower limit error data
Y001 Output of channel-1 upper limit error data
Y002 Output of channel-2 lower limit error data F
Y003 Output of channel-2 upper limit error data

FX3U-4DA-ADP
Y004 Output of channel-3 lower limit error data
Y005 Output of channel-3 upper limit error data
Y006 Output of channel-4 lower limit error data
Output Y007 Output of channel-4 upper limit error data
Y010 Output of disconnection detection signal
G

FX3G-1DA-BD
Y011 Output of error detection signal
D200 Data register at destination of automatic transfer of error status
Data register at destination of automatic transfer of upper/lower limit
D201
function error status

D202
Data register at destination of automatic transfer of disconnection detection H
error status
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

E-57
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 8 Examples of Practical Programs
FX3U-4DA (4-channel Analog Output) 8.2 Example of Program using Useful Functions

2. Example of sequence program

• For FX3U, FX3UC Series PLCs

Initial pulse
M8002
FNC 12 H2200 U0\G0 Output modes of channels 1 to 4 will be specified *1
RUN monitor MOV P
M8000
T0 K50 *2

T0
FNC 12 H1122 U0\G38 Upper/lower limit function setting
MOV P

FNC 16 K-3200 U0\G41 K2 Setting of lower limit values for channels 1 and 2
FMOV P

FNC 16 K6400 U0\G43 K2 Setting of lower limit values for channels 3 and 4
FMOV P

FNC 16 K28800 U0\G45 K2 Setting of upper limit values for channels 1 and 2
FMOV P

FNC 16 K25600 U0\G47 K2 Setting of upper limit values for channels 3 and 4
FMOV P

FNC 12 H0011 U0\G50 Corrective function setting by load resistance *1

MOV P

FNC 16 K5000 U0\G51 K2 Setting of load resistance values for channels 1 and 2 *1
FMOV P

FNC 12 Status automatic transfer function setting *1

H0007 U0\G60 (The initial setting of destination data registers is used,
MOV P and the sequence program for this function is omitted.)
X000
FNC 12 H0003 U0\G40 Clearance of upper/lower limit function status data
MOV P
X001
FNC 12 K0 U0\G29 Clearance of error status data
MOV P
X002
FNC 12 K0 U0\G28 Clearance of disconnection detection status data
MOV P
RUN monitor
M8000
FNC 15 D10 U0\G1 K4 Transfer of data that will be output from channels 1 to 4
BMOV

FNC 12 D201 K2Y000 Output of upper/lower limit error status of channels to

MOV Y000 to Y007

D202.2
Disconnection detected in channels 3 and 4
Y010 Output to Y010
D202.3

D200.0
Y011 Error detected Output to Y011

*1. The output mode setting, setting of corrective function by load characteristics and status automatic
transfer function setting are retained in the EEPROM of FX 3U-4DA. For this reason, even if the
sequence program is deleted, the previously set functions will still be valid.
*2. After setting the output mode, set the data writing time (waiting time) to 5 seconds or more for each
setting. After the output mode is specified, and the same output mode is used, it is not necessary to
set the output mode and the waiting time (T0 K50).

E-58
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 8 Examples of Practical Programs
FX3U-4DA (4-channel Analog Output) 8.2 Example of Program using Useful Functions

A
• For FX3G, FX3U, FX3UC Series PLCs

Common Items
Initial pulse
M8002
FNC 79 K0 K0 H2200 K1 Output modes of channels 1 to 4 will be specified *1
RUN monitor TO P
M8000
K50 *2
B
T0

FX3UC-4AD
FX3U-4AD
T0
FNC 79 K0 K38 H1122 K1 Upper/lower limit function setting
TO P

FNC 79
TO P
K0 K41 K-3200 K2 Setting of lower limit values for channels 1 and 2
C

FX3U-4AD-ADP
FNC 79 K0 K43 K6400 K2 Setting of lower limit values for channels 3 and 4
TO P

FNC 79 K0 K45 K28800 K2 Setting of upper limit values for channels 1 and 2
TO P

FNC 79 K0 K47 K25600 K2 Setting of upper limit values for channels 3 and 4 D
TO P

FX3G-2AD-BD
FNC 79 K0 K50 H0011 K1 Corrective function setting by load resistance *1
TO P

FNC 79 K0 K51 K5000 K2 Setting of load resistance values for channels 1 and 2 *1
TO P
Status automatic transfer function setting *1
E
FNC 79

FX3U-4DA
K0 K60 H0007 K1 (The initial setting of destination data registers is used,
TO P and the sequence program for this function is omitted.)
X000
FNC 79 K0 K40 H0003 K1 Clearance of upper/lower limit function status data
TO P
X001
F
FNC 79 K0 K29 K0 K1 Clearance of error status data
TO P

FX3U-4DA-ADP
X002
FNC 79 K0 K28 K0 K1 Clearance of disconnection detection status data
TO P
RUN monitor
M8000
FNC 79 K0 K1 D10 K4 Transfer of data that will be output from channels 1 to 4
TO

FNC 12 D201 K2Y000 Output of upper/lower limit error status of channels to G

MOV Y000 to Y007

FX3G-1DA-BD
FNC 12 D200 K4M0
MOV

FNC 12 D202 K4M20

M22
MOV
H
FX3U-4AD-PT

Disconnection detected in channels 3 and 4

Y010 Output to Y010
M23
-ADP

M0
Y011 Error detected Output to Y011
I
FX3U-4AD-PTW

*1. The output mode setting, setting of corrective function by load characteristics and status automatic
transfer function setting are retained in the EEPROM of FX 3U-4DA. For this reason, even if the
sequence program is deleted, the previously set functions will still be valid.
-ADP

*2. After setting the output mode, set the data writing time (waiting time) to 5 seconds or more for each
setting. After the output mode is specified, and the same output mode is used, it is not necessary to J
set the output mode and the waiting time (T0 K50).
FX3U-4AD-PNK
-ADP

E-59
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 8 Examples of Practical Programs
FX3U-4DA (4-channel Analog Output) 8.3 Example of Program for Table Output Operation (Pattern Output Operation)

8.3 Example of Program for Table Output Operation (Pattern Output

Operation)
This section describes a practical program that uses the table output function.

1. Conditions
The sequence program described in this section is under the following conditions.
1) System configuration
FX3U-4DA (unit No.0) should be connected to the FX3U Series PLC.
2) Output mode
Channel 1 should be set to mode 0 (voltage output, -10 V to +10 V).
Channel 3 should be set to mode 2 (current output, 0 mA to 20 mA).
Channels 2 and 4 are out of use.
3) Convenient function
The table output function is used.
4) Device assignment
Device Description
X000 Start of table output function for channels 1 and 3
X001 Stop of table output function
X002 Restart of table output function for channel 3
D10 Data to be output from channel 1
Input
D11 Data to be output from channel 2
D12 Data to be output from channel 3
D13 Data to be output from channel 4
D5000 or more Data table *
Y000 Completion of output of table from channel 1
Y001 Table output error
M0 Data table transfer complete
Output
M1 During output of table from channel 3
D100 Data table transfer command
D101 Table output completion flag

* It is necessary to separately create the data table.

→ For a detailed description of creation of the data table, refer to Section 6.2.

2. Example of sequence program

• For FX3U, FX3UC Series PLCs

Initial pulse
M8002
FNC 12 HF2F0 U0\G0 Specification of output modes of channels 1 to 4 *1
MOV P
RUN monitor
M8000
T0 K50 *2

Continued

*1. The output mode setting is retained in the EEPROM of the FX3U-4DA. For this reason, even if the
sequence program is deleted, the previously set functions will still be valid.
*2. After setting the output mode, set the data writing time (waiting time) to 5 seconds or more for each
setting. After the output mode is specified, and the same output mode is used, it is not necessary to
set the output mode and the waiting time (T0 K50).

E-60
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 8 Examples of Practical Programs
FX3U-4DA (4-channel Analog Output) 8.3 Example of Program for Table Output Operation (Pattern Output Operation)

Common Items
T0
FNC 12 K1 U0\G81 Channel-1 output pattern
MOV P

FNC 12 K2 U0\G83 Channel-3 output pattern

B
MOV P

FX3UC-4AD
FX3U-4AD
FNC 12 Number of repetitions of output of table
K5 U0\G85 from channel 1
MOV P

FNC 12 Number of repetitions of output of table

K0 U0\G87
MOV P from channel 3
C
FNC 12

FX3U-4AD-ADP
K5000 U0\G98 Number of head device in data table
MOV P

FNC 12 H0001 U0\G99 Data table transfer command *

MOV P

FNC 79
FROM
K0 K99 D100 K1 Readout of data table transfer command D

FX3G-2AD-BD
D100.0
Turning-on of M0 At the completion of transfer
SET M0 of data table
X000
FNC 12 H0100 U0\G80 Start table output function (channel 3)
MOV P
Turning-on of M1 when table is output from E
SET M1 channel 3

FX3U-4DA
X000 M1
FNC 12 H0101 U0\G80 Start table output function (channel 1)
MOV P
X001 M1
FNC 12 H0000 U0\G80 Stop table output function
MOV P F

FX3U-4DA-ADP
Turning-off of M1 when output of table from
RST M1 channel 3 is stopped
X002 M1
FNC 12 H0100 U0\G80 Restart of table output function (channel 3)
MOV P

SET M1 Turning-on of M1 when table is output from

channel 3
G

FX3G-1DA-BD
M1
FNC 79 K0 K89 D101 K2 Readout table output completion flag and table
FROM output error
D101.0
Y000 Completion of table output from channel 1
Output to Y000

FNC 228
H
K0 D102 Y001 Output to Y001 when table output error occurs
FX3U-4AD-PT

LD< >
-ADP

* Execute the data table transfer command as a pulse execution type instruction.

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

E-61
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 8 Examples of Practical Programs
FX3U-4DA (4-channel Analog Output) 8.3 Example of Program for Table Output Operation (Pattern Output Operation)

• For FX3G, FX3U, FX3UC Series PLCs

Initial pulse
M8002
FNC 79 K0 K0 HF2F0 K1 Specification of output modes of channels 1 to 4 *1
TO P
RUN monitor
M8000
T0 K50 *2

T0
FNC 79 K0 K81 K1 K1 Channel-1 output pattern
TO P

FNC 79 K0 K83 K2 K1 Channel-3 output pattern

TO P

FNC 79 Number of repetitions of output of table

K0 K85 K5 K1 from channel 1
TO P

FNC 79 Number of repetitions of output of table

K0 K87 K0 K1 from channel 3
TO P

FNC 79 K0 K98 K5000 K1 Number of head device in data table

TO P

FNC 79 K0 K99 H0001 K1 Data table transfer command *3

TO P

FNC 78 K0 K99 D100 K1 Readout of data table transfer command

FROM

FNC 12 D100 K4M10

MOV
M10
Turning-on of M0 At the completion of transfer
SET M0 of data table
X000
FNC 79 K0 K80 H0100 K1 Start table output function (channel 3)
TO P

Turning-on of M1 when table is output from

SET M1 channel 3
X000 M1
FNC 79 K0 K80 H0101 K1 Start table output function (channel 1)
TO P
X001 M1
FNC 79 K0 K80 H0000 K1 Stop table output function
TO P

Turning-off of M1 when output of table from

RST M1 channel 3 is stopped
X002 M1
FNC 79 K0 K80 H0100 K1 Restart of table output function (channel 3)
TO P

SET M1 Turning-on of M1 when table is output from

channel 3
Continued

*1. The output mode setting is retained in the EEPROM of the FX3U-4DA. For this reason, even if the
sequence program is deleted, the previously set functions will still be valid.
*2. After setting the output mode, set the data writing time (waiting time) to 5 seconds or more for each
setting. After the output mode is specified, and the same output mode is used, it is not necessary to
set the output mode and the waiting time (T0 K50).
*3. Execute the data table transfer command as a pulse execution type instruction.

E-62
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 8 Examples of Practical Programs
FX3U-4DA (4-channel Analog Output) 8.4 Program to Initialize FX3U-4DA (Factory Default)

Common Items
M1
FNC 78 K0 K89 D101 K2 Readout table output completion flag and table
FROM output error

FNC 12
MOV
D101 K4M30 B
M30

FX3UC-4AD
FX3U-4AD
Y000 Completion of table output from channel 1
Output to Y000

FNC 228 K0 D102 Y001 Output to Y001 when table output error occurs
LD< >
C

FX3U-4AD-ADP
8.4 Program to Initialize FX3U-4DA (Factory Default)
To initialize FX3U-4DA, execute the following program.
This will return the output mode (BFM #0), the offset data (BFM #10 to #13) and the gain data (BFM #14 to
#17) will be to the factory default status state. D

FX3G-2AD-BD
1. Conditions
The sequence program described in this section is under the following conditions.
1) System configuration
FX3U-4DA (unit No.0) should be connected to the FX3U Series PLC.
2) Device assignment E
Device Description

FX3U-4DA
X000 4AD initialization command

2. Example of sequence program

• For FX3U, FX3UC Series PLCs
F

FX3U-4DA-ADP
4DA initialization command
X000
FNC 12 K1 U0\G20 The 4DA will be initialized.
MOV P (BFM #0 to #3098 will be cleared.)

• For FX3G, FX3U, FX3UC Series PLCs G

FX3G-1DA-BD
4DA initialization command
X000
FNC 79 K0 K20 K1 K1 The 4DA will be initialized.
TO P (BFM #0 to #3098 will be cleared.)

H
3. Cautions regarding initializing
FX3U-4AD-PT

• During initialization, output is stopped, and H0000 is automatically written in the output status (BFM #6).
At the completion of initialization, the output status (BFM #6) will automatically change to H1111, and the
output will be restarted.
-ADP

• It takes approximately 5 seconds to complete initialization. Do not set (write) data in the buffer memory
during the period. I
• Priority is given to the setting of the change prohibition mode (BFM #19).
FX3U-4AD-PTW

• Once initialization is completed, the value in BFM #20 will automatically change to "K0".
-ADP

J
FX3U-4AD-PNK
-ADP

E-63
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 9 Troubleshooting
FX3U-4DA (4-channel Analog Output) 9.1 PLC Version Number Check

9. Troubleshooting
This chapter describes the troubleshooting methods and error codes.
If the D/A conversion data is not output, or if the proper digital value is not output, check the following items:
• Wiring
• Program
• Error status

9.1 PLC Version Number Check

• Any versions (from Ver.2.20 (initial version) to the latest version) of the FX3U Series are compatible.
• Check the version number of FX3UC Series. The version number should be 1.30 or later.
• Any versions (from Ver.1.00 (initial version) to the latest version) of the FX3G Series are compatible.
→ For a detailed description of the version number check method, refer to Section 1.3.

9.2 Wiring Check

Check the wiring as follows:

1. Power
FX3U-4DA needs driving power. Verify that the power supply line is properly connected. Also check that the
24 V indicator lamp of FX3U-4DA is on.

2. Analog output line

Use the 2-core twisted shielded cable for the analog output line. In addition, be sure to separate the analog
output line from the other motive power lines or inductive lines.
→ For a detailed description of wiring, refer to Chapter 3.

9.3 Program Check

Check the program as follows:

1. Check the output mode and output data.

Check that data has been set correctly in BFM #0 to #4.

2. Check the settings.

Check that the offset data (BFM #10 to #13), gain data (BFM #14 to #17), upper/lower limit function setting
(BFM #38) and table output function start/stop setting (BFM #80) are correct.

E-64
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 9 Troubleshooting
FX3U-4DA (4-channel Analog Output) 9.4 Error Status Check

A
9.4 Error Status Check

Common Items
When an error occurs in FX3U-4DA, the bit appropriate to the error is turned on in the error status (BFM #29).
Take measures, referring to the following table.

Bit No. Items B

b0 Error detection

FX3UC-4AD
FX3U-4AD
b1 O/G error
b2 Power supply error
b3 Hardware error
b4 - C
b5 Error in setting of function for setting output upon PLC stop

FX3U-4AD-ADP
b6 Upper/lower limit function setting error
Error in corrective function setting by load resistance
b7
(Valid only in voltage output mode)
b8 Table output function setting error
b9 Status automatic transfer setting error
D

FX3G-2AD-BD
b10 Over-scale
b11 Disconnection detection (Valid only in current output mode)
b12 Setting data change prohibited
b13 to b15 -
E
1. Error detection (b0)

FX3U-4DA
1) Description of error
If any of b1 is turned on, this bit (b11) will turn on.

2. O/G error (b1)

1) Description of error F
The bit is turned on when the offset or gain data (BFM #10 to #17) in the EEPROM has a setting error.

FX3U-4DA-ADP
2) Remedy
Check the output mode (BFM #0) and the offset and gain data (BFM #10 to #17).

3. Power supply error (b2)

1) Description of error G

FX3G-1DA-BD
24 V power is not correctly supplied.
2) Remedy
Check the wiring condition or the supply voltage.

4. Hardware error (b3)

1) Description of error H
FX3U-4AD-PT

FX3U-4DA may be defective.

2) Remedy
Please contact the nearest Mitsubishi Electric distributor office.
-ADP

5. Error when setting the function for output upon PLC stop (b5)
1) Description of error I
FX3U-4AD-PTW

The bit will turn on when the functions setting value for setting output upon PLC stop is not correctly set.
2) Remedy
Check the output mode (BFM #0) and the setting value of output data upon PLC stop (BFM #32 to #35).
-ADP

J
FX3U-4AD-PNK
-ADP

E-65
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 9 Troubleshooting
FX3U-4DA (4-channel Analog Output) 9.5 FX3U-4DA Initialization and Test Program

6. Upper/lower limit function value setting error (b6)

1) Description of error
The bit will turn on when the setting value of the upper/lower limit function is not correctly set.
2) Remedy
Check the output mode (BFM #0) and the lower limit (BFM #41 to 44) and upper limit (BFM #45 to #48)
settings value of the upper/lower limit function.

7. Error in corrective function setting by load resistance (b7)

1) Description of error
The bit will turn on when the setting value of the corrective function by load resistance is not correctly set.
2) Remedy
Check the output mode (BFM #0) and the load resistance values (BFM #51 to #54) for the channels.

8. Table output function setting error (b8)

1) Description of error
The bit will turn on when the setting value of the table output function is not correctly set.
2) Remedy
Check the output mode (BFM #0) and the setting value of the table output function.

9. Status automatic transfer setting error (b9)

1) Description of error
The bit will turn on when the setting value of the status automatic transfer function is not correctly set.
2) Remedy
Check the setting values in the automatic transfer destination data register specification field (BFM #61 to
#63).

10. Over-scale (b10)

1) Description of error
This bit will turn on when analog output is out of the specified range.
2) Remedy
Check the output mode (BFM #0) setting value and the values in the output data (BFM #1 to #4).

11. Disconnection detection (b11)

1) Description of error
The bit is turned on when a cable is disconnected.
2) Remedy
Check that no cables are disconnected or have contact failure.

12. Setting data change prohibited (b12)

1) Description of error
The bit will turn on while the setting change is prohibited.
2) Remedy
To change any setting, set BFM #19 to K3030.

9.5 FX3U-4DA Initialization and Test Program

If the above-mentioned remedies cannot solve the problem, initialize FX3U-4DA and then check the
conditions of the FX3U-4DA using the test program.
→ For a detailed description of FX3U-4DA initialization program, refer to Subsection 8.4.
→ For a detailed description of the test program, refer to Chapter 4.

E-66
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition
FX3U-4DA-ADP (4-channel analog Output)

Common Items
B

FX3UC-4AD
FX3U-4AD
FX3G/FX3U/FX3UC Series Programmable
Controllers C

FX3U-4AD-ADP
User's Manual [Analog Control Edition]
FX3U-4DA-ADP (4-channel analog Output)
D

FX3G-2AD-BD
E

FX3U-4DA
F

FX3U-4DA-ADP
G

FX3G-1DA-BD

H
FX3U-4AD-PT

Foreword
-ADP

This manual describes the specifications, wiring, and operation method for the FX3U-4DA-ADP special
adapter (4-channel analog output) and should be read and understood before attempting to install or use the
unit. I
Store this manual in a safe place so that you can take it out and read it whenever necessary. Always forward
FX3U-4AD-PTW

it to the end user.

This manual confers no industrial property rights or any rights of any other kind, nor does it confer any patent
-ADP

licenses. Mitsubishi Electric Corporation cannot be held responsible for any problems involving industrial property
rights which may occur as a result of using the contents noted in this manual.
J
FX3U-4AD-PNK

© 2005 MITSUBISHI ELECTRIC CORPORATION

-ADP

F-1
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition
FX3U-4DA-ADP (4-channel analog Output)

F-2
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 1 Outline
FX3U-4DA-ADP (4-channel analog Output) 1.1 Outline of Functions

Common Items
1. Outline
This chapter outlines the FX3U-4DA-ADP (referred to as 4DA-ADP). B

FX3UC-4AD
FX3U-4AD
1.1 Outline of Functions
The FX3U-4DA-ADP is an analog special adapter. Which is connectable with the FX3U, FX3UC and FX3G
Series PLC to output the voltage/current data for up to 4 channels.
C
1) Up to 4 units of 4DA-ADP can be connected to the FX3U/FX3UC Series PLC.

FX3U-4AD-ADP
Up to 2*1 units of 4DA-ADP can be connected to the FX3G Series PLC.
(Including other analog special adapters).
2) Either "voltage output" or "current output" can be specified for each channel.
3) The D/A conversion results will be automatically output as the values to the special data register of the
FX3U/FX3UC/FX3G Series PLC. D

FX3G-2AD-BD
System Point and section to be
referred to

FX3U, FX3UC Series PLC : 4 maximum

FX3G Series PLC : 2*1 maximum Number of connectable
……
(including other analog special adapters)
FX3U/FX3UC /FX3G Series PLC
units E

FX3U-4DA
To check the connectable
…… PLC model number, refer

+ + to Section 1.3.

FX3U-4DA-ADP
Expansion
4th 3rd 2nd 1st
adapter adapter adapter adapter board*2
For a detailed
…… description of wiring,
Analog data refer to Chapter 3.

Inverter, etc. G

FX3G-1DA-BD
For FX3U, FX3UC
Series PLC For a detailed description
Contents …… of special devices, refer to
H
Special devices Chapter 4.
Output mode Transfer direction 1st adapter M/D8260 to M/D8269
For a detailed description
FX3U-4AD-PT

switching 2nd adapter M/D8270 to M/D8279 of a basic program, refer to

Output setting data Section 4.8.
3rd adapter M/D8280 to M/D8289
Error status 4th adapter M/D8290 to M/D8299
-ADP

Refer to the system configuration shown in the User's Manual - Hardware Edition to check the number of connectable units
and to configure the entire system. I
FX3U-4AD-PTW

*1. Only 1 analog special adapter can be connected to the 14-point and 24-point type main unit.
*2. The expansion board is not required when connecting with the FX3UC (D, DSS) PLC.
For the FX3G Series PLC a connector conversion adapter is used.
-ADP

J
FX3U-4AD-PNK
-ADP

F-3
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 1 Outline
FX3U-4DA-ADP (4-channel analog Output) 1.2 Setup Procedure Before Starting Operation

1.2 Setup Procedure Before Starting Operation

Before starting analog output using the 4DA-ADP, follow the procedure below to set up the system:

FX3U-4DA-ADP

Refer to Chapter 1.

Outline Outline of system:

• Compatible PLC version number
• Compatible programming tool version number
Refer to Chapter 2.

Specifications check Specifications:

• Operation environment
• Performance specifications
Refer to the common • Output characteristics
pages.

System configuration and selection System configuration:

(Refer to the common pages for analog control.)
• Selection of units
Refer to Chapter 3.

Wiring Wiring:
• Power supply line
• Analog output line
Refer to Chapter 4.
Programming:
Programming
• Details of special devices
• Examples of basic programs
Refer to Chapter 5.

Changing of output characteristics Method of output characteristics change:

• How to use scaling instruction

If the error status data or the output analog value

is abnormal, refer to Chapter 6 "Troubleshooting."

F-4
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 1 Outline
FX3U-4DA-ADP (4-channel analog Output) 1.3 Connectable PLCs and Version Numbers

A
1.3 Connectable PLCs and Version Numbers

Common Items
The 4DA-ADP is compatible with the following PLCs.

Compatible PLC Version number Date of production B

FX3U Series PLC Ver.2.20 or later After May 2005 (initial production)

FX3UC-4AD
FX3U-4AD
FX3UC Series PLC Ver.1.20 or later After April 2004
FX3G Series PLC Ver.1.00 or later After June 2008 (initial production)

1. Version check C

FX3U-4AD-ADP
Special data register D8001 contains information for determining the PLC version number.

D8001 2 4 1 0 0
PLC type and
version number Version data (Example: Ver. 1.00)
D
PLC type Example: 24 = FX3U and FX3UC series
( )

FX3G-2AD-BD
26 = FX3G series

2. How to look at the manufacturer's serial number

The year and month of production of the product can be seen from the manufacturer's serial number
"SERIAL" indicated on the label adhered to the right side of the product. E

FX3U-4DA
Example:
FX3U-48MR/ES(production number : 570001)

Right side MITSUBISHI PROGRAMMABLE

CONTROLLER

MODEL FX3U-48MR/ES
100-240VAC 50/60Hz 40W
OUT:30VDC/240VAC 2A(COSφ=1)
F

FX3U-4DA-ADP
SERIAL 570001

80M1 IND. CONT. EQ.

MITSUBISHI ELECTRIC CORPORATION
MADE IN JAPAN

5 7 0 0 0 1
G

FX3G-1DA-BD
Control number
Month (Example: 7 = July), 1 to 9 = January to September,
X = October, Y = November, Z = December
Year (Example: 5 = 2005), last digit of dominical year

H
FX3U-4AD-PT

1.4 Compatible Programming Tool Version Number

Use the programming tool with the following version number to create programs for the 4DA-ADP of the
-ADP

FX3U/FX3UC/FX3G Series PLC:

Software Version number Remarks I
FX3U-4AD-PTW

GX Developer Ver.SW8 P or later

(Ver.8.13P) When selecting a model, select FX3U(C)*1.
• SW D5C-GPPW-J
• SW D5C-GPPW-E (Ver.8.72A or later) When selecting a model, select FX3G.
-ADP

If a programming tool with the wrong version number is used, programming will not be possible.
J
*1. For Ver. 8.13P to 8.24A of GX Developer, select FX3UC for the PLC type.
FX3U-4AD-PNK
-ADP

F-5
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 Specifications
FX3U-4DA-ADP (4-channel analog Output) 2.1 Generic Specifications

2. Specifications
This chapter describes the general, power supply, and performance specifications for 4DA-ADP.

2.1 Generic Specifications

Item Specifications
Ambient 0 to 55°C (32 to 131°F) when operating
temperature -25 to 75°C (-13 to 167°F) when stored
Relative
5 to 95%RH (no condensation) when operating
humidity
Frequency Acceleration Half amplitude
(Hz) (m/s2) (mm)
10 times of testing in
Vibration 10 - 57 - 0.035 each direction (X-, Y-,
DIN Rail Mounting
resistance 57 - 150 4.9 - and Z-axis directions)
(Total: 80 min, each)
10 to 57 − 0.075
Direct Mounting*1
57 to 150 9.8 −
Shock
147 m/s2 Acceleration, Action time: 11ms, 3 times by half-sine pulse in each direction X, Y, and Z
resistance
Noise Using noise simulator of:
resistance Noise voltage: 1,000Vp-p / Noise width: 1µs / Rise: 1ns / Cycle: 30 to 100Hz
Dielectric
withstand 500 V AC, for 1 min
voltage Between all terminals and ground terminal
Insulation 5MΩ or more using 500V DC
resistance insulation resistance meter
Class D grounding (grounding resistance: 100 Ω or less)
Grounding
<Common grounding with a heavy electrical system is not allowed.>*2
Working
Free from corrosive or flammable gas and excessive conductive dusts
environment
Working
< 2000m*3
altitude

*1. If 4DA-ADP is connected to the FX3UC Series PLC, direct installation is not possible.

*2.
PLC Other PLC Other PLC Other
equipment equipment equipment

Independent grounding Shared grounding Common grounding

Best condition Good condition Not allowed

→ For a detailed description of the grounding, refer to Section 3.5.

*3. If the pressure is higher than the atmospheric pressure, do not use 4DA-ADP.
The 4DA-ADP may malfunction.

F-6
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 Specifications
FX3U-4DA-ADP (4-channel analog Output) 2.2 Power Supply Specifications

A
2.2 Power Supply Specifications

Common Items
Item Specifications
D/A conversion circuit 24V DC +20%-15%, 150mA B
driving power (It is necessary to connect a 24V DC power line to the terminal block.)

FX3UC-4AD
FX3U-4AD
5V DC, 15mA
Interface driving power (Since the internal power is supplied from the main unit of the FX Series, it is not
necessary to supply the power.)

2.3 Performance Specifications

C

FX3U-4AD-ADP
Specifications
Item
Voltage output Current output
D
Analog output 0V to 10 V DC 4mA to 20mA DC

FX3G-2AD-BD
range (External load: 5kΩ to 1MΩ) (External load: 500Ω or less)
Digital input 12 bits, binary
Resolution 2.5mV(10V/4000) 4µA(16mA/4000)
• ±0.5% (±50mV) for 10V full scale
(when ambient temperature is 25°C±5 °C) E
• ±1.0% (±100mV) for 10V full scale

FX3U-4DA
(when ambient temperature is 0°C to 55°C)
• ±0.5% (±80µA) for 16mA full scale
If the external load resistance (Rs) is less than (when ambient temperature is 25°C±5°C)
Total accuracy
5kΩ, the value calculated from the following • ±1.0% (±160µA) for 16mA full scale
formula will be added: (when ambient temperature is 0°C to 55 °C)
(Addition will be 100mV per 1%.) F

FX3U-4DA-ADP
47×100
-0.9(%)
Rs+47

• FX3U/FX3UC Series PLC : 200µs (The data will be updated at every scan time.)
D/A conversion
• FX3G Series PLC : 250µs (The data will be updated at every scan time.)
time
→ For a detailed description of data update, refer to Section 2.4. G

FX3G-1DA-BD
10V 20mA
Analog output

H
Analog output

Output
characteristics
FX3U-4AD-PT

4mA
-ADP

0 4000 4080 0 4000 4080

Digital input Digital input
I
FX3U-4AD-PTW

• The photocoupler is used to insulate the analog output area from the PLC.
Insulation method • The DC/DC converter is used to insulate the power supply line from the analog output area.
• Channels are not insulated from each other.
-ADP

Numbers of I/O
0 point (This number is not related to the maximum number of input/output points of the PLC.)
points occupied
J
FX3U-4AD-PNK
-ADP

F-7
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 Specifications
FX3U-4DA-ADP (4-channel analog Output) 2.4 D/A Conversion Time

2.4 D/A Conversion Time

This section describes the D/A conversion time.

2.4.1 When connected to a FX3U, FX3UC PLC

1. D/A conversion and special data register update timing

D/A conversion is performed at every scan time of the PLC.
During execution of the END instruction, the PLC writes the output setting data of the special data registers,
performs D/A conversion of the data, and updates the analog output data.

FX3U-4DA-ADP FX3U-4DA-ADP
n'th 1st FX3U/FX3UC Series PLC

Sequence
program
Digital value
D/A writing
conversion
D/A conversion
200µs start command
/4ch
END instruction
D/A Digital value writing
conversion
D/A conversion
200µs/4ch start command

2. D/A conversion during PLC stop

If the output holding function cancellation setting is disabled by the special device, the offset value will be
output.
If the output holding function cancellation setting is enabled, the output at switching from RUN to STOP will be
latched.
Just after power-on, however, the offset value will be output until operation begins.

3. If two or more analog special adapters are connected

During execution of the END instruction, data in all the connected adapters will be subject to D/A conversion
and then output (in the order of 1st adapter → 2nd adapter... 4th adapter).

4. D/A conversion speed (data update time)

During execution of END instruction, the output setting digital data per of 4 channel will be subject to D/A
conversion which takes 200µs, after which the analog data will be output.
END instruction execution time will be "200µs × number of connected adapters."

F-8
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 Specifications
FX3U-4DA-ADP (4-channel analog Output) 2.4 D/A Conversion Time

A
2.4.2 When connected to a FX3G PLC

Common Items
1. D/A conversion and special data register update timing
D/A conversion is performed at every scan time of the PLC.
During execution of the END instruction, the PLC writes the output setting data of the special data registers,
performs D/A conversion of the data, and updates the analog output data. B

FX3UC-4AD
FX3U-4AD
FX3U-4DA-ADP FX3U-4DA-ADP
2nd 1st FX3G Series PLC

Sequence
program
C

FX3U-4AD-ADP
Digital value
D/A writing
conversion
D/A conversion
250µs start command
/4ch
END instruction
D/A Digital value writing D
conversion

FX3G-2AD-BD
D/A conversion
250µs/4ch start command

2. D/A conversion during PLC stop E

If the output holding function cancellation setting is disabled by the special device, the offset value will be

FX3U-4DA
output.
If the output holding function cancellation setting is enabled, the output at switching from RUN to STOP will be
latched.
Just after power-on, however, the offset value will be output until operation begins.

3. If two analog special adapters are connected F

FX3U-4DA-ADP
During execution of the END instruction, data in all the connected adapters will be subject to D/A conversion
and then output (in the order of 1st adapter → 2nd adapter).

4. D/A conversion speed (data update time)

During execution of END instruction, the output setting digital data per of 4 channel will be subject to D/A
conversion which takes 250µs, after which the analog data will be output. G
END instruction execution time will be "250µs × number of connected adapters."

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

F-9
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3U-4DA-ADP (4-channel analog Output)

3. Wiring
This chapter describes the 4DA-ADP wiring.
Observe the following caution to wire the 4DA-ADP.

WIRING PRECAUTIONS

• Make sure to cut off all phases of the power supply externally before attempting wiring work.
Failure to do so may cause electric shock or damages to the product.

WIRING PRECAUTIONS

• Connect the DC power supply wiring to the dedicated terminals described in this manual.
If an AC power supply is connected to a DC input/output terminal or DC power supply terminal, the PLC will be
burnt out.
• Do not wire vacant terminals externally.
Doing so may damage the product.
• Perform class D grounding (grounding resistance: 100Ω or less) to the grounding terminal on the main unit.
Do not use common grounding with heavy electrical systems.
• When drilling screw holes or wiring, make sure cutting or wire debris does not enter the ventilation slits.
Failure to do so may cause fire, equipment failures or malfunctions.
• Make sure to observe the following precautions in order to prevent malfunctions under the influence of noise:
- Do not bundle the power line or twisted shielded cable together with or lay it close to the main circuit, high-
voltage line, or load line.
Otherwise, noise disturbance and/or surge induction are likely to take place. As a guideline, lay the control line
at least 100mm (3.94") or more away from the main circuit, high-voltage line, or load line.
- Ground the shield of the analog input/output cable at one point on the signal receiving side.
However, do not use common grounding with heavy electrical systems.
• Make sure to properly wire to the European terminal board in accordance with the following precautions.
Failure to do so may cause electric shock, a short-circuit, wire breakage, or damage to the product.
- The disposal size of the cable end should be 9 mm (0.35").
- Tightening torque should be between 0.22 to 0.25 N•m.
- Twist the end of strand wire and make sure there are no loose wires.
- Do not solder-plate the electric wire ends.
- Do not connect more than the specified number of wires or electric wires of unspecified size.
- Affix the electric wires so that neither the terminal block nor the connected parts are directly stressed.

F-10
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3U-4DA-ADP (4-channel analog Output) 3.1 Terminal Layout

A
3.1 Terminal Layout

Common Items
The terminals of the 4DA-ADP are arranged as follows:

FX3UC-4AD
FX3U-4AD
FX3U-4DA-ADP

POWER

Signal Application
24+
C
External power
24+

FX3U-4AD-ADP
24-
24-

Grounding terminal
V1+
VI+

I1+ Channel 1 analog output

V2+ COM1 I1+

COM1
V2+ D
I2+ Channel 2 analog output
V3+ COM2 I2+

FX3G-2AD-BD
COM2
V3+
I3+ Channel 3 analog output
V4+ COM3 I3+

COM3
V4+
I4+ Channel 4 analog output E
I4+
COM4

FX3U-4DA
COM4

FX3U-4DA-ADP
G

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

F-11
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3U-4DA-ADP (4-channel analog Output) 3.2 Applicable Cables and Terminal Tightening Torque

3.2 Applicable Cables and Terminal Tightening Torque

Use the following cables to connect with the counterpart equipment. Terminate the cable end as shown below.

1. Cable
Applicable cable and tightening torque
Wire size (stranded/ Tightening
Termination
single-wire) torque
0.3mm2 to 0.5mm2 • To connect a stranded cable, peel the cover off the cable
Single-wire and then twist the core before connection.
(AWG22 to 20)
• To connect a single-wire cable, just peel the cover off the
2-wire 0.3mm2(AWG22) cable before connection.
0.22N•m to • Rod terminal with insulation sleeve
Rod terminal 0.3mm2 to 0.5mm2 0.25N•m (recommended terminal)
with (AWG22 to 20) AI 0.5-8WH : Manufactured by Phoenix Contact
insulation (Refer to the rod terminal
• Caulking tool
sleeve external view shown in
CRIMPFOX ZA 3 : Manufactured by Phoenix Contact
the following figure.)
(or CRIMPFOX UD 6 : Manufactured by Phoenix Contact)

2. Termination of cable end

To terminate the cable, treat the stranded/single wire directly or use a rod terminal with insulation sleeve.
• To directly terminate the end of a stranded/single-wire cable: Termination of cable end
- Twist the end of the stranded cable so that the "barbed wires"
cannot protrude.
- Do not solder-plate the end of the cable.
9mm
(0.35")
• To terminate cable end using a rod terminal with insulation sleeve: Insulation sleeve Contact area
If the cable cover is too thick, it may be difficult to insert the cable into (Crimp area)
the insulation sleeve. For this reason, select an appropriate cable while
referring to the external view. 8mm (0.31")
Manufacturer Model Caulking tool 2.6mm 14mm
(0.1")
CRIMPFOX ZA 3 (0.55")
Phoenix Contact AI 0.5-8WH
(or CRIMPFOX UD 6)

3. Tool
• To tighten terminals, use a small-sized screwdriver whose head is straight and is not widened as shown in
the figure to the right.

Note:
If the diameter of screwdriver grip is too small, tightening torque will not
The head
be able to be achieved. Use the following recommended screwdriver or should be
an appropriate replacement (grip diameter: approximately 25mm). straight.
Manufacturer Model
Phoenix Contact SZS 0.4×2.5 0.4mm 2.5mm
(0.01") (0.09")

F-12
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3U-4DA-ADP (4-channel analog Output) 3.3 Power Supply Line

A
3.3 Power Supply Line

Common Items
Connect the 24V DC power supply line of the 4DA-ADP to the 24+ and 24- terminals of the terminal block.

3.3.1 To Connect to the FX3G, FX3U Series PLC

B

FX3UC-4AD
FX3U-4AD
1. To use an External power supply 2. To use the 24V DC power of the PLC

4DA-ADP FX3G/FX3U 4DA-ADP FX3G/FX3U

Series PLC Series PLC
15V (Main unit) 15V (Main unit)

FX3U-4AD-ADP
24- 24+ 24- 24+ 0V 24V D

FX3G-2AD-BD
Terminal Terminal
block block

Class-D Class-D
24V DC grounding grounding
E
Caution regarding connection of the power supply line:

FX3U-4DA
• Ground the " " terminal to class-D grounded power supply line (100Ω or less) together with the
grounding terminal of the PLC main unit.
• For the timing of power-on/off when using an external power supply, see the following manual of the PLC
to be connected.
→ Refer to the FX3G Series User's Manual - Hardware Edition. F
→ Refer to the FX3U Series User's Manual - Hardware Edition.

FX3U-4DA-ADP
3.3.2 To Connect To the FX3UC Series PLC

4DA-ADP FX3UC Series PLC

(Main unit)
FX2NC Series PLC
(Input extension G
+15V block)

FX3G-1DA-BD

Power H
Power Power crossover
FX3U-4AD-PT

connector connector connector

24- 24+ 24- 24+ 24- 24+ 24- 24+

-ADP

Terminal Black Red Green Black Red

block
I
FX3U-4AD-PTW

Class-D
24V DC grounding
-ADP

Caution regarding connection of the power supply line:

• For the 24V DC power supply line, be sure to use the same power as the FX3UC Series PLC.
J
FX3U-4AD-PNK

• Ground the " " terminal to a class-D grounded power supply line (100Ω or less) together with the
grounding terminal of the PLC main unit.
-ADP

F-13
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3U-4DA-ADP (4-channel analog Output) 3.4 Analog Output Line

3.4 Analog Output Line

The analog output type, "voltage output" or "current output", can be selected for each channel.

If voltage output is selected: 4DA-ADP

Terminal
*1 Shielded block ch

V
+
I
+
COM

*3

If current output is selected:

ch

V
+
I
+
COM

*3

Connection of external power

supply line +15V
24+
24V DC
*2 24-

Class-D
grounding

V
+, I
+, ch
:
represents the channel number.

*1. Use 2-core shielded twisted pair cable for the analog output lines, and separate the analog output
lines from other power lines or inductive lines.
*2. 24V DC service power supply of the FX3G/FX3U Series PLC can also be used.
*3. Ground the shielded wire at one point on the signal receiving side.

3.5 Grounding
Grounding should be performed as stated below.
• The grounding resistance should be 100Ω or less.
• Independent grounding should be performed for best results.
When independent grounding is not performed, perform "shared grounding" as shown in the following
figure.
→ For details, refer to User’s Manual - Hardware Edition of the PLC Series.

PLC Other PLC Other PLC Other

equipment equipment equipment

Independent grounding Shared grounding Common grounding

Best condition Good condition Not allowed

• The grounding wire size should be AWG22 to 20 (0.3 to 0.5 mm2).

• The grounding point should be close to the PLC, and all grounding wires should be as short as possible.

F-14
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4DA-ADP (4-channel analog Output) 4.1 Writing of D/A Conversion Data

Common Items
4. Programming
This chapter describes how to create programs that can output the analog data using the 4DA-ADP. B

FX3UC-4AD
FX3U-4AD
4.1 Writing of D/A Conversion Data
1) The input digital data will be converted into analog data and then output to the terminals.
2) If data is stored in the special devices, the averaging time can be set, and the output mode can be C
specified.

FX3U-4AD-ADP
3) Special auxiliary relays (10 points) and special data registers (10 points) are assigned automatically
starting from the adapter nearest the main unit.
→ For a detailed description of special device assignment, refer to Section 4.2.
• FX3U, FX3UC Series PLC
Communi- High-speed
D
cation

FX3G-2AD-BD
input/output
FX3U-4DA FX3U-4DA FX3U-4DA special FX3U-4DA special
-ADP -ADP -ADP adapter -ADP adapter FX3U/FX3UC Series PLC

4th 3rd 2nd 1st Special devices

D/A
Special auxiliary relays:
M8260 to M8269 E
Special data registers:

FX3U-4DA
D8260 to D8269

Special auxiliary relays:

M8270 to M8279
D/A Special data registers:
D8270 to D8279
Sequence
program
F
Special auxiliary relays:

FX3U-4DA-ADP
M8280 to M8289
D/A Special data registers:
D8280 to D8289

Special auxiliary relays:

M8290 to M8299
D/A Special data registers:
D8290 to D8299
G

FX3G-1DA-BD
The analog special adapter nearest to the main unit is counted as the 1st analog special adapter, and the
next adapter as the 2nd analog special adapter, and so on. In this case, however, do not include the high-
speed input/output special adapter and the communication special adapter.
H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

F-15
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4DA-ADP (4-channel analog Output) 4.1 Writing of D/A Conversion Data

• FX3G Series PLC

Communi-
cation Connector
FX3U-4DA special FX3U-4DA conversion
-ADP adapter -ADP adapter FX3G Series PLC

2nd*1 1st
Special devices
Special auxiliary relays:
M8280 to M8289
D/A Special data registers:
D8280 to D8289 Sequence
Program
Special auxiliary relays:
M8290 to M8299
D/A Special data registers:
D8290 to D8299

The analog special adapter nearest to the main unit is counted as the 1st analog special adapter, and the
next adapter as the 2nd analog special adapter. In this case, however, do not include the connector
conversion adapter and the communication special adapter.
*1. The second special adapter is not available in the 14-point and 24-point type main unit.

F-16
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4DA-ADP (4-channel analog Output) 4.2 List of Special Devices

A
4.2 List of Special Devices

Common Items
If 4DA-ADP is connected, special devices will be assigned automatically as shown in the following table:
• FX3U, FX3UC Series PLC
R: Read / W: Write
Special Device number
B
Description Attribute Reference

FX3UC-4AD
FX3U-4AD
device 1st 2nd 3rd 4th
M8260 M8270 M8280 M8290 Switches the output mode of channel 1. R/W
M8261 M8271 M8281 M8291 Switches the output mode of channel 2. R/W Section
M8262 M8272 M8282 M8292 Switches the output mode of channel 3. R/W 4.3
M8263 M8273 M8283 M8293 Switches the output mode of channel 4. R/W C

FX3U-4AD-ADP
Sets the cancel of the channel-1 output
M8264 M8274 M8284 M8294 R/W
holding function.
Special
auxiliary Sets the cancel of the channel-2 output
M8265 M8275 M8285 M8295 R/W
relay holding function. Section
Sets the cancel of the channel-3 output 4.4
M8266 M8276 M8286 M8296
holding function.
R/W D

FX3G-2AD-BD
Sets the cancel of the channel-4 output
M8267 M8277 M8287 M8297 R/W
holding function.
M8268 to M8278 to M8288 to M8298 to
Unused (Do not use.) - -
M8269 M8279 M8289 M8299
D8260 D8270 D8280 D8290 Channel-1 output setting data R/W
D8261 D8271 D8281 D8291 Channel-2 output setting data R/W Section
E

FX3U-4DA
D8262 D8272 D8282 D8292 Channel-3 output setting data R/W 4.5
D8263 D8273 D8283 D8293 Channel-4 output setting data R/W
Special
data D8264 to D8274 to D8284 to D8294 to
Unused (Do not use.) - -
register D8267 D8277 D8287 D8297

D8268 D8278 D8288 D8298 Error status R/W

Section
4.6
F

FX3U-4DA-ADP
Section
D8269 D8279 D8289 D8299 Model code = 2 R
4.7

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

F-17
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4DA-ADP (4-channel analog Output) 4.3 Switching of Output Mode

• FX3G Series PLC

R: Read / W: Write
Device number
Special device Description Attribute Reference
1st 2nd
M8280 M8290 Switches the output mode of channel 1. R/W
M8281 M8291 Switches the output mode of channel 2. R/W Section
M8282 M8292 Switches the output mode of channel 3. R/W 4.3
M8283 M8293 Switches the output mode of channel 4. R/W
Sets the cancel of the channel-1 output
M8284 M8294 R/W
holding function.
Special auxiliary relay Sets the cancel of the channel-2 output
M8285 M8295 R/W
holding function. Section
Sets the cancel of the channel-3 output 4.4
M8286 M8296 R/W
holding function.
Sets the cancel of the channel-4 output
M8287 M8297 R/W
holding function.
M8288 to M8298 to
Unused (Do not use.) - -
M8289 M8299
D8280 D8290 Channel-1 output setting data R/W
D8281 D8291 Channel-2 output setting data R/W Section
D8282 D8292 Channel-3 output setting data R/W 4.5
D8283 D8293 Channel-4 output setting data R/W
Special data D8284 to D8294 to
register Unused (Do not use.) - -
D8287 D8297
Section
D8288 D8298 Error status R/W
4.6
Section
D8289 D8299 Model code = 2 R
4.7

4.3 Switching of Output Mode

Turn the special auxiliary relay on/off to switch the output mode of 4DA-ADP between the current output
mode and the voltage output mode.
To switch the output mode, use the following special auxiliary relays:
• FX3U, FX3UC Series PLC
Special auxiliary relay
Description
1st 2nd 3rd 4th
M8260 M8270 M8280 M8290 Switches the output mode of channel 1
M8261 M8271 M8281 M8291 Switches the output mode of channel 2 OFF:Voltage output
M8262 M8272 M8282 M8292 Switches the output mode of channel 3 ON :Current output
M8263 M8273 M8283 M8293 Switches the output mode of channel 4

• FX3G Series PLC

Special auxiliary relay
Description
1st 2nd
M8280 M8290 Switches the output mode of channel 1
M8281 M8291 Switches the output mode of channel 2 OFF:Voltage output
M8282 M8292 Switches the output mode of channel 3 ON :Current output
M8283 M8293 Switches the output mode of channel 4

F-18
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4DA-ADP (4-channel analog Output) 4.4 Output Holding Function Cancellation Setting

A
1. Program Example (For FX3U, FX3UC Series PLC)

Common Items
To switch the output mode of a channel, create a sequence program as follows:

1) To switch the channel output mode of 2) To switch the output mode of channel 2
channel 1 of the 1st analog special of the 1st analog special adapter to the
adapter to the voltage output mode: current output mode:
M8001 M8000 B
M8260 M8261

FX3UC-4AD
FX3U-4AD
Normally OFF Normally ON

4.4 Output Holding Function Cancellation Setting C

FX3U-4AD-ADP
This setting can hold the analog data output or to output the offset data (0V for voltage output mode, 4mA for
current output mode) when the PLC stops.
To cancel or set the output holding function, use the following special auxiliary relays:
• FX3U, FX3UC Series PLC
Special auxiliary relay
D
Description

FX3G-2AD-BD
1st 2nd 3rd 4th
Cancel output holding function
M8264 M8274 M8284 M8294
setting for channel 1
Cancel output holding function OFF: Holds the analog data output
M8265 M8275 M8285 M8295
setting for channel 2 just before stop of the PLC. E
Cancel output holding function ON : Outputs the offset data at

FX3U-4DA
M8266 M8276 M8286 M8296 stop of the PLC.
setting for channel 3
Cancel output holding function
M8267 M8277 M8287 M8297
setting for channel 4

F
• FX3G Series PLC

FX3U-4DA-ADP
Special auxiliary relay
Description
1st 2nd
Cancel output holding function
M8284 M8294
setting for channel 1
Cancel output holding function OFF: Holds the analog data output
G
M8285 M8295

FX3G-1DA-BD
setting for channel 2 just before stop of the PLC.
Cancel output holding function ON : Outputs the offset data at
M8286 M8296 stop of the PLC.
setting for channel 3
Cancel output holding function
M8287 M8297
setting for channel 4
H
FX3U-4AD-PT

1. Program Example (For FX3U, FX3UC Series PLC)

To set or cancel the output holding function for a channel, create a sequence program as follows:
-ADP

1) To set the output holding function for 2) To cancel the output holding function for
channel 1 of the 1st analog special adapter: channel 2 of the 1st analog special adapter:
M8000
I
M8001
FX3U-4AD-PTW

M8264 M8265
Normally OFF Normally ON
-ADP

J
FX3U-4AD-PNK
-ADP

F-19
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4DA-ADP (4-channel analog Output) 4.5 Output Setting Data

4.5 Output Setting Data

Numeric data type: Decimal (K)

The 4DA-ADP performs D/A conversion on the output setting data (digital data) into analog data, and outputs
the analog data.
Use the special data registers shown in the following table for the output setting data:
• FX3U, FX3UC Series PLC
Special data register
Description
1st 2nd 3rd 4th
D8260 D8270 D8280 D8290 Channel-1 output setting data
D8261 D8271 D8281 D8291 Channel-2 output setting data
D8262 D8272 D8282 D8292 Channel-3 output setting data
D8263 D8273 D8283 D8293 Channel-4 output setting data

• FX3G Series PLC

Special data register
Description
1st 2nd
D8280 D8290 Channel-1 output setting data
D8281 D8291 Channel-2 output setting data
D8282 D8292 Channel-3 output setting data
D8283 D8293 Channel-4 output setting data

1. Program Example (For FX3U, FX3UC Series PLC)

M8000 Performs D/A conversion using the digital
FNC 12 D100 D8260 data stored in the D100 for channel 1 of
Normally ON
MOV the 1st analog special adapter.

Performs D/A conversion using the digital

FNC 12 D101 D8261 data stored in the D101 for channel 2 of
MOV the 1st analog special adapter.

Using the indicator or the sequence program, input the digital data to be subject to D/A conversion (to be
output as analog data) in D100 and D101.

F-20
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4DA-ADP (4-channel analog Output) 4.6 Error Status

A
4.6 Error Status

Common Items
1. Description of setting
If an error is detected on 4DA-ADP, the error status data will be stored in the corresponding special data
register.
The following table shows the special data registers that store the error status data:
B

FX3UC-4AD
FX3U-4AD
• FX3U, FX3UC Series PLC

Special data register

Description
1st 2nd 3rd 4th
D8268 D8278 D8288 D8298 Stores the error status data. C

FX3U-4AD-ADP
• FX3G Series PLC

Special data register

Description
1st 2nd
D
D8288 D8298 Stores the error status data.

FX3G-2AD-BD
Check the ON/OFF status of each bit of the error status data register to check the description of the error.
Errors are assigned to the bits as shown in the following table. Create a program to detect errors.

Bit Description
b0 Channel-1 output data setting error E

FX3U-4DA
b1 Channel-2 output data setting error
b2 Channel-3 output data setting error
b3 Channel-4 output data setting error
b4 EEPROM error
b5 to b15 Unused F

FX3U-4DA-ADP
2. Program Example 1 (For FX3G, FX3U, FX3UC Series PLC)
M8000

Normally
MOV D8288 K4M0
G

FX3G-1DA-BD
ON
M0
Y000 Channel-1 output data setting error in
3rd *1 adapter.
M1
Y001 Channel-2 output data setting error in
3rd *1 adapter.
H
FX3U-4AD-PT

M2
Y002 Channel-3 output data setting error in
3rd *1 adapter.
-ADP

M3
Y003 Channel-4 output data setting error in
3rd *1 adapter.
I
FX3U-4AD-PTW

M4
Y004 EEPROM error in the 3rd *1adapter
-ADP

*1. "1st" for the FX3G PLC.

J
FX3U-4AD-PNK
-ADP

F-21
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4DA-ADP (4-channel analog Output) 4.6 Error Status

3. Program Example 2 (For FX3U, FX3UC Series PLC)

D8268.0
Y000 Channel-1 output data setting error in
1st adapter
D8268.1
Y001 Channel-2 output data setting error in
1st adapter

D8268.2
Y002 Channel-3 output data setting error in
1st adapter
D8268.3
Y003 Channel-4 output data setting error in
1st adapter

D8268.4
Y004 EEPROM error in 1st adapter

F-22
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4DA-ADP (4-channel analog Output) 4.7 Model Code

A
4.7 Model Code

Common Items
Initial value: K2
Numeric data type: Decimal (K)

1. Description of setting B
When the 4DA-ADP is connected, model code "2" is stored in the corresponding special data register.

FX3UC-4AD
FX3U-4AD
The following table shows the special data registers that store the model code:
• FX3U, FX3UC Series PLC
1st 2nd 3rd 4th Description
D8269 D8279 D8289 D8299 Model code C

FX3U-4AD-ADP
• FX3G Series PLC
1st 2nd Description
D8289 D8299 Model code
Use the special data registers above to check whether 4DA-ADP is connected or not. D

FX3G-2AD-BD
2. Program Example (For FX3U, FX3UC Series PLC)
Checks the model code
FNC 224 D8269 K2 Y007 of the 1st analog special
LD = adapter.
E

FX3U-4DA
4.8 Basic Program Example
Create the following basic program example to output D/A converted analog data.
• For FX3G, FX3U, FX3UC Series PLC
The following program will set channel 1 of the 3rd*1 adapter to the voltage output mode and channel 2 to
F

FX3U-4DA-ADP
current output mode, and will set digital data in D100 and D101 for D/A conversion.
M8001
M8280 Sets the output mode of channel 1 to the voltage
output mode (0 V to 10 V).

M8284 Sets the output holding function for channel 1. G

FX3G-1DA-BD
M8000
M8281 Sets the output mode of channel 2 to the current
output mode (4 mA to 20 mA).

M8285 Cancels the output holding function for channel 2.

M8000
FNC 12 Performs D/A conversion with the digital data stored
H
D100 D8280
FX3U-4AD-PT

MOV in D100 for channel 1.

FNC 12 D101 D8281 Performs D/A conversion with the digital data stored
MOV in D101 for channel 2.
-ADP

Using the indicator or the sequence program, input the digital data to be subject to D/A conversion (to be
output as analog data) in D100 and D101. I
FX3U-4AD-PTW

*1. "1st" for the FX3G PLC.

-ADP

J
FX3U-4AD-PNK
-ADP

F-23
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Changing of Output Characteristics
FX3U-4DA-ADP (4-channel analog Output) 5.1 Example: Changing of Voltage Output Characteristics

5. Changing of Output Characteristics

Use the scaling instruction (SCL/FNC 259) for the FX3U/FX3UC Series PLC to change the output
characteristics.
FX3G Series PLCs do not support the scaling instruction. Use sequence programs to change the output
characteristics.
→ For a detailed description of scaling instruction, refer to the FX3G/FX3U/FX3UC Series Programming
Manual - Basic & Applied Instruction.

5.1 Example: Changing of Voltage Output Characteristics

This section describes an example of a program that can change the digital value range from 400 to 2000
(when analog output range is 1 to 5V) to 0 to 10000.
A specified digital value is inputted into D100.

1. Output characteristics
subject to D/A conversion
Voltage output characteristics Digital value characteristics
(product specifications)
Specified digital output

to be changed
value to be actually

10V
Analog output

Y-axis

5V 2000
(5V)

1V 400
(1V)
0 400 2000 4000 X-axis
0 10000
Digital value input
Desired digital value (D100)

2. Example of program 1 (For FX3U, FX3UC Series PLC)

• For example, create the following program to change the digital output of the 1st analog special adapter.
M8001
M8260 Sets the output mode of channel 1 to the voltage output
mode.

M8264 Sets the output holding function for channel 1.

M8002
FNC 12 Program for setting scaling instruction data table
K2 D50
MOV
Item Description Value Device
FNC 12 Number of points Sets the number of points. 2 D50
K0 D51
MOV X- Digital value of specified 0 D51
Start coordinate start point on X-axis
FNC 12 point Y- Digital value of desired D/A
K400 D52 400 D52
MOV coordinate conversion start point
X- Digital value of specified end 10000 D53
FNC 12 K10000 D53 End coordinate point on X-axis
MOV point Y- Digital value of desired D/A 2000
coordinate conversion end point D54
FNC 12 K2000 D54
MOV
M8000 The result of operation by scaling instruction will be stored
FNC 259 D100 D50 D8260
SCL in the D8260.

F-24
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Changing of Output Characteristics
FX3U-4DA-ADP (4-channel analog Output) 5.1 Example: Changing of Voltage Output Characteristics

A
3. Example of program 2 (For FX3G Series PLC)

Common Items
• For example, create the following program to change the digital output data (D100) of the 1st analog
special adapter.
M8001
Sets the output mode of channel 1 to the
M8280
voltage output mode. B

FX3UC-4AD
FX3U-4AD
Sets the output holding function for
M8284
channel 1.

FNC 230 D100 K0 FNC 237 D100 K10000 M10 Check to make sure the digital
LD>= AND<= value (D100) is in range.
M10 C
FNC 22

FX3U-4AD-ADP
D100 K1600 D101
MUL

FNC 23 D101 K10000 D103

DDIV Calculation for changing output
characteristics.

D
FNC 20 D103 K400 D107 Stores the operation result in D8280.
ADD

FX3G-2AD-BD
FNC 12 D107 D8280
MOV

4. Cautions regarding programming

• GX Developer version 8.13P or later supports scaling instruction (SCL/FNC259). E

FX3U-4DA
• If the input digital value for the D/A conversion is out of the data table range specified by scaling instruction
(SCL/FNC259), the FX Series PLC will detect an operation error (error code: K6706).

FX3U-4DA-ADP
G

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

F-25
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 6 Troubleshooting
FX3U-4DA-ADP (4-channel analog Output) 6.1 PLC Version Number Check

6. Troubleshooting
This chapter describes the troubleshooting methods and error status.
If analog data is not output, or if the proper analog value is not output, check the following items:
• Version number of PLC
• Wiring
• Special devices
• Programs
• Error status

6.1 PLC Version Number Check

• Any versions (from Ver.2.20 (initial version) to the latest version) of the FX3U Series are compatible.
• Check the version number of FX3UC Series. The version number should be 1.20 or later.
• Any versions (from Ver.1.00 (initial version) to the latest version) of the FX3G Series are compatible.
→ For a detailed description of the version number check method, refer to Section 1.3.

6.2 Wiring Check

Check the following items for wiring:

1. Power
The 4DA-ADP needs driving power. Verify that the power supply line is properly connected. Also check that
the POWER indicator lamp of the 4DA-ADP is on.

2. Analog output line

Use the 2-core twisted shielded pair cable for the analog output line. In addition, be sure to separate the
analog output line from other power lines or inductive lines.
→ For a detailed description of wiring, refer to Chapter 3.

6.3 Special Device Check

Check whether the special devices for the 4DA-ADP are being used correctly:

1. Output mode switching

Verify that the special device for switching the output mode is correctly set.
Turn off the device to set the output mode to the voltage output mode. Turn on the device to set the output
mode to the current output mode.

2. Output setting data

Check that the special device of the selected channel is correctly selected. This special device should be
selected depending on the connected position and the channel.

3. Error status
Check that no error is detected in the 4DA-ADP.
If an error is detected, check the details of the error, and then check the wiring and programs.
→ For a detailed description of special devices, refer to Chapter 4.

F-26
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 6 Troubleshooting
FX3U-4DA-ADP (4-channel analog Output) 6.4 Program Check

A
6.4 Program Check

Common Items
Check the following items for the program:

1. Device for setting specified digital value

Check that different values are not written to this device using other programs. B

FX3UC-4AD
FX3U-4AD
6.5 Error Status Check
If an error occurs in the 4DA-ADP, the corresponding bit will turn on.

Bit Description C

FX3U-4AD-ADP
b0 Channel-1 output data setting error
b1 Channel-2 output data setting error
b2 Channel-3 output data setting error
b3 Channel-4 output data setting error
b4 EEPROM error D

FX3G-2AD-BD
b5 to b15 Unused
To solve the problem, refer to the troubleshooting method described below:

1. Output data setting error (b0 to b3)

1) Description of error
The specified digital value is outside the specified range.
E

FX3U-4DA
Analog data will not be correctly output.
2) Remedy
Check that the specified digital value is within the specified range.

2. EEPROM error (b4)

1) Description of error
F

FX3U-4DA-ADP
The adjustment data set in the EEPROM before delivery from our factory cannot be read out properly or
is destroyed.
2) Remedy
Please contact the nearest Mitsubishi Electric distributor office.

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

F-27
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 6 Troubleshooting
FX3U-4DA-ADP (4-channel analog Output) 6.5 Error Status Check

MEMO

F-28
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition
FX3G-1DA-BD (1-channel analog Output)

Common Items
B

FX3UC-4AD
FX3U-4AD
FX3G/FX3U/FX3UC Series Programmable
Controllers C

FX3U-4AD-ADP
User's Manual [Analog Control Edition]
FX3G-1DA-BD (1-channel analog Output)
D

FX3G-2AD-BD
E

FX3U-4DA
F

FX3U-4DA-ADP
G

FX3G-1DA-BD

H
FX3U-4AD-PT

Foreword
-ADP

This manual describes the specifications, wiring, and operation method for the FX3G-1DA-BD analog output
expansion board (1-channel analog output) and should be read and understood before attempting to install or
use the unit. I
Store this manual in a safe place so that you can take it out and read it whenever necessary. Always forward
FX3U-4AD-PTW

it to the end user.

-ADP

This manual confers no industrial property rights or any rights of any other kind, nor does it confer any patent
licenses. Mitsubishi Electric Corporation cannot be held responsible for any problems involving industrial property
rights which may occur as a result of using the contents noted in this manual. J
FX3U-4AD-PNK

© 2005 MITSUBISHI ELECTRIC CORPORATION

-ADP

G-1
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition
FX3G-1DA-BD (1-channel analog Output)

G-2
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 1 Outline
FX3G-1DA-BD (1-channel analog Output) 1.1 Outline of Functions

Common Items
1. Outline
This chapter outlines the FX3G-1DA-BD (referred to as 1DA-BD). B

FX3UC-4AD
FX3U-4AD
1.1 Outline of Functions
The FX3G-1DA-BD is an analog expansion board. Which is connectable with the FX3G Series PLC to output
the voltage/current data for up to 1 channel.
C
1) Up to 2*1 units of 1DA-BD can be connected to the FX3G Series PLC.

FX3U-4AD-ADP
(Including other analog expansion boards, analog special adapters).
2) Either "voltage output" or "current output" can be specified.
3) The D/A conversion results will be automatically output as the values to the special data register of the
FX3G Series PLC.
D

FX3G-2AD-BD
System Point and section to be
referred to

2*1 maximum
( (
Number of connectable
including other analog expansion ……
units
boards, analog special adapters. FX3G Series PLC
E

FX3U-4DA
2nd 1st To check the connectable
…… PLC model number, refer
to Section 1.3.

Connected to the option connector 1 F

FX3U-4DA-ADP
Analog data Connected to the option connector 2
For a detailed
…… description of wiring,
refer to Chapter 3.

Inverter, etc.
G

FX3G-1DA-BD
For a detailed description
Contents For FX3G Series PLC …… of special devices, refer to
Chapter 4.
Output mode
switching
Transfer direction
1st board
Special devices
M/D8260 to M/D8269
For a detailed description
of a basic program, refer to
H
Output setting data
FX3U-4AD-PT

Section 4.8.
2nd board M/D8270 to M/D8279
Error status
-ADP

Refer to the system configuration shown in the User's Manual - Hardware Edition to check the number of connectable units
and to configure the entire system.

*1. Only 1 analog board can be connected to the 14-point and 24-point type main unit.
I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

G-3
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 1 Outline
FX3G-1DA-BD (1-channel analog Output) 1.2 Setup Procedure Before Starting Operation

1.2 Setup Procedure Before Starting Operation

Before starting analog output using the 1DA-BD, follow the procedure below to set up the system:

FX3G-1DA-BD

Refer to Chapter 1.

Outline Outline of system:

• Compatible PLC version number
• Compatible programming tool version number
Refer to Chapter 2.

Specifications check Specifications:

• Operation environment
• Performance specifications
Refer to the common • Output characteristics
pages.

System configuration and selection System configuration:

(Refer to the common pages for analog control.)
• Selection of units
Refer to Chapter 3.

Wiring Wiring:
• Power supply line
• Analog output line
Refer to Chapter 4.
Programming:
Programming
• Details of special devices
• Examples of basic programs
Refer to Chapter 5.

Changing of output characteristics Method of output characteristics change

If the error status data or the output analog value

is abnormal, refer to Chapter 6 "Troubleshooting."

G-4
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 1 Outline
FX3G-1DA-BD (1-channel analog Output) 1.3 Connectable PLCs and Version Numbers

A
1.3 Connectable PLCs and Version Numbers

Common Items
The 1DA-BD is compatible with the following PLC.

Compatible PLC Version number Date of production B

FX3G Series PLC Ver.1.10 or later After October 2008 (initial production)

FX3UC-4AD
FX3U-4AD
1. Version check
Special data register D8001 contains information for determining the PLC version number.
C

FX3U-4AD-ADP
D8001 2 6 1 1 0
PLC type and
version number Version data (Example: Ver. 1.10)
PLC type (Example: 26 = FX3G series)
D

FX3G-2AD-BD
2. How to look at the manufacturer's serial number
The year and month of production of the product can be seen from the manufacturer's serial number
"SERIAL" indicated on the label adhered to the right side of the product.

Example: FX3G-40MT/ES (manufacturer's serial number: 8X0001) E

FX3U-4DA
PROGRAMMABLE
MITSUBISHI CONTROLLER

Right side MODEL FX3G-40MT/ES

100-240VAC 50/60Hz 37W
OUT:5~30VDC 0.5A

SERIAL 8X0001 F

FX3U-4DA-ADP
MITSUBISHI ELECTRIC CORPORATION
MADE IN JAPAN

8 X 0 0 0 1

Control number G
Month (Example: Oct.):(1 to 9 = January to September,

FX3G-1DA-BD
X = October, Y = November, Z = December)
Year (Example: 2008): Last digit of year

1.4 Compatible Programming Tool Version Number

H
FX3U-4AD-PT

Use the programming tool with the following version number to create programs for the 1DA-BD of the FX3G
Series PLC:
Software Version number Remarks
-ADP

GX Developer
• SW D5C-GPPW-J (Ver.8.72A or later) When selecting a model, select FX3G. I
• SW D5C-GPPW-E
FX3U-4AD-PTW

If a programming tool with the wrong version number is used, programming will not be possible.
-ADP

J
FX3U-4AD-PNK
-ADP

G-5
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 Specifications
FX3G-1DA-BD (1-channel analog Output) 2.1 Generic Specifications

2. Specifications
This chapter describes the general and performance specifications for 1DA-BD.

2.1 Generic Specifications

Item Specifications
Ambient 0 to 55°C (32 to 131°F) when operating
temperature -25 to 75°C (-13 to 167°F) when stored
Relative
5 to 95%RH (no condensation) when operating
humidity
Frequency Acceleration Half amplitude
(Hz) (m/s2) (mm)
10 times of testing in
Vibration 10 - 57 - 0.035 each direction (X-, Y-,
DIN Rail Mounting
resistance 57 - 150 4.9 - and Z-axis directions)
(Total: 80 min, each)
10 to 57 − 0.075
Direct Mounting
57 to 150 9.8 −
Shock
147 m/s2 Acceleration, Action time: 11ms, 3 times by half-sine pulse in each direction X, Y, and Z
resistance
Noise Using noise simulator of:
resistance Noise voltage: 1,000Vp-p / Noise width: 1µs / Rise: 1ns / Cycle: 30 to 100Hz
Class D grounding (grounding resistance: 100 Ω or less)
Grounding
<Common grounding with a heavy electrical system is not allowed.>*1
Working
Free from corrosive or flammable gas and excessive conductive dusts
environment
Working
< 2000m*2
altitude

*1.
PLC Other PLC Other PLC Other
equipment equipment equipment

Independent grounding Shared grounding Common grounding

Best condition Good condition Not allowed

→ For a detailed description of the grounding, refer to Section 3.5.

*2. If the pressure is higher than the atmospheric pressure, do not use 1DA-BD.
The 1DA-BD may malfunction.

G-6
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 Specifications
FX3G-1DA-BD (1-channel analog Output) 2.2 Performance Specifications

A
2.2 Performance Specifications

Common Items
Specifications
Item
Voltage output Current output B

FX3UC-4AD
FX3U-4AD
Analog output 0V to 10 V DC 4mA to 20mA DC
range (External load: 2kΩ to 1MΩ) (External load: 500Ω or less)
Digital input 12 bits, binary 11 bits, binary
Resolution 2.5mV(10V/4000) 8µA(16mA/2000)
• ±0.5% (±50mV) for 10V full scale
(when ambient temperature is 25°C±5 °C)
C

FX3U-4AD-ADP
• ±1.0% (±100mV) for 10V full scale
(when ambient temperature is 0°C to 55°C)
• ±0.5% (±80µA) for 16mA full scale
Shipment adjustment is carried out by external
(when ambient temperature is 25°C±5°C)
Total accuracy load resistance 2kΩ.
• ±1.0% (±160µA) for 16mA full scale
If external load resistance becomes larger
(when ambient temperature is 0°C to 55 °C) D
than 2kΩ, the output voltage will increase

FX3G-2AD-BD
slightly.
When the load is 1MΩ, the output voltage
becomes about 2% higher than the correct
value.
D/A conversion 60µs (The data will be updated at every scan time.)
time → For a detailed description of data update, refer to Section 2.4. E

FX3U-4DA
10V 20mA

F
Analog output
Analog output

FX3U-4DA-ADP
Output
characteristics
4mA

0 4000 4080 0 2000 2040

Digital input Digital input G

FX3G-1DA-BD
Caution:
An area of dead band is located in the region
of 0V. Therefore the output analog value may
not represent the digital value accurately.
Insulation method • The analog output area is not insulated from the PLC.
Numbers of I/O
H
0 point (This number is not related to the maximum number of input/output points of the PLC.)
FX3U-4AD-PT

points occupied
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

G-7
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 Specifications
FX3G-1DA-BD (1-channel analog Output) 2.3 D/A Conversion Time

2.3 D/A Conversion Time

This section describes the D/A conversion time.

1. D/A conversion and special data register update timing

D/A conversion is performed at every scan time of the PLC.
During execution of the END instruction, the PLC writes the output setting data of the special data registers,
performs D/A conversion of the data, and updates the analog output data.

FX3G Series PLC

Sequence Program

END instruction

D/A conversion Digital value D/A conversion Digital value

start command writing start command writing

D/A D/A
conversion conversion

60µs 60µs
/1ch /1ch

FX3G-1DA-BD FX3G-1DA-BD
1st 2nd

2. D/A conversion during PLC stop

If the output holding function cancellation setting is disabled by the special device, the offset value will be
output.
If the output holding function cancellation setting is enabled, the output at switching from RUN to STOP will be
latched.
Just after power-on, however, the offset value will be output until operation begins.

3. If two analog expansion boards are connected

During execution of the END instruction, data in all the connected boards will be subject to D/A conversion
and then output (in the order of 1st board → 2nd board).

4. D/A conversion speed (data update time)

During execution of END instruction, the output setting digital data will be subject to D/A conversion which
takes 60µs, after which the analog data will be output.
END instruction execution time will be "60µs × number of connected board."

G-8
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3G-1DA-BD (1-channel analog Output)

Common Items
3. Wiring
This chapter describes the 1DA-BD wiring. B
Observe the following caution to wire the 1DA-BD.

FX3UC-4AD
FX3U-4AD
WIRING PRECAUTIONS

• Make sure to cut off all phases of the power supply externally before attempting wiring work.
Failure to do so may cause electric shock or damages to the product. C

FX3U-4AD-ADP
WIRING PRECAUTIONS

• Connect the DC power supply wiring to the dedicated terminals described in this manual.
If an AC power supply is connected to a DC input/output terminal or DC power supply terminal, the PLC will be
burnt out.
D

FX3G-2AD-BD
• Do not wire vacant terminals externally.
Doing so may damage the product.
• Perform class D grounding (grounding resistance: 100Ω or less) to the grounding terminal on the main unit.
Do not use common grounding with heavy electrical systems.
• When drilling screw holes or wiring, make sure cutting or wire debris does not enter the ventilation slits.
Failure to do so may cause fire, equipment failures or malfunctions. E
• Make sure to observe the following precautions in order to prevent malfunctions under the influence of noise:

FX3U-4DA
- Do not bundle the power line or twisted shielded cable together with or lay it close to the main circuit, high-
voltage line, or load line.
Otherwise, noise disturbance and/or surge induction are likely to take place. As a guideline, lay the control line
at least 100mm (3.94") or more away from the main circuit, high-voltage line, or load line.
- Ground the shield of the analog input/output cable at one point on the signal receiving side.
However, do not use common grounding with heavy electrical systems. F
• Make sure to properly wire to the European terminal board in accordance with the following precautions.

FX3U-4DA-ADP
Failure to do so may cause electric shock, a short-circuit, wire breakage, or damage to the product.
- The disposal size of the cable end should be 9 mm (0.35").
- Tightening torque should be between 0.22 to 0.25 N•m.
- Twist the end of strand wire and make sure there are no loose wires.
- Do not solder-plate the electric wire ends.
- Do not connect more than the specified number of wires or electric wires of unspecified size. G
- Affix the electric wires so that neither the terminal block nor the connected parts are directly stressed.

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

G-9
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3G-1DA-BD (1-channel analog Output) 3.1 Terminal Layout

3.1 Terminal Layout

The terminals of the 1DA-BD are arranged as follows:

Signal • • V+ I+ VI-
Unused Output COM
Application
terminal terminal terminal

G-10
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3G-1DA-BD (1-channel analog Output) 3.2 Applicable Cables and Terminal Tightening Torque

A
3.2 Applicable Cables and Terminal Tightening Torque

Common Items
Use the following cables to connect with the counterpart equipment. Terminate the cable end as shown below.

1. Cable
Applicable cable and tightening torque
B

FX3UC-4AD
FX3U-4AD
Wire size (stranded/ Tightening
Termination
single-wire) torque
0.3mm2 to 0.5mm2 • To connect a stranded cable, peel the cover off the cable
Single-wire and then twist the core before connection.
(AWG22 to 20)
2-wire 0.3mm2(AWG22)
• To connect a single-wire cable, just peel the cover off the
cable before connection.
C

FX3U-4AD-ADP
0.22N•m to • Rod terminal with insulation sleeve
Rod terminal 0.3mm2 to 0.5mm2 0.25N•m (recommended terminal)
with (AWG22 to 20) AI 0.5-8WH : Manufactured by Phoenix Contact
insulation (Refer to the rod terminal
• Caulking tool
sleeve external view shown in
CRIMPFOX ZA 3 : Manufactured by Phoenix Contact
the following figure.)
(or CRIMPFOX UD 6 : Manufactured by Phoenix Contact) D

FX3G-2AD-BD
2. Termination of cable end
To terminate the cable, treat the stranded/single wire directly or use a rod terminal with insulation sleeve.
• To directly terminate the end of a stranded/single-wire cable: Termination of cable end
- Twist the end of the stranded cable so that the "barbed wires"
cannot protrude. E
- Do not solder-plate the end of the cable.

FX3U-4DA
9mm
(0.35")
• To terminate cable end using a rod terminal with insulation sleeve: Insulation sleeve Contact area
If the cable cover is too thick, it may be difficult to insert the cable into (Crimp area)
the insulation sleeve. For this reason, select an appropriate cable while
referring to the external view. 8mm (0.31")
F

FX3U-4DA-ADP
Manufacturer Model Caulking tool 2.6mm 14mm
(0.1")
CRIMPFOX ZA 3 (0.55")
Phoenix Contact AI 0.5-8WH
(or CRIMPFOX UD 6)

3. Tool
G
• To tighten terminals, use a small-sized screwdriver whose head is straight and is not widened as shown in

FX3G-1DA-BD
the figure to the right.

Note:
If the diameter of screwdriver grip is too small, tightening torque will not
The head
be able to be achieved. Use the following recommended screwdriver or
an appropriate replacement (grip diameter: approximately 25mm).
should be
straight. H
FX3U-4AD-PT

Manufacturer Model
Phoenix Contact SZS 0.4×2.5 0.4mm 2.5mm
(0.01") (0.09")
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

G-11
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3G-1DA-BD (1-channel analog Output) 3.3 Analog Output Line

3.3 Analog Output Line

If voltage output is selected: 1DA-BD

Terminal
block
*1 Shield
V+
I+
*2 Class-D VI-
grounding

If current output is selected: 1DA-BD

Terminal
block
*1 Shield
V+
I+
*2 Class-D VI-
grounding

*1. Use 2-core shielded twisted pair cable for the analog output lines, and separate the analog output
lines from other power lines or inductive lines.
*2. Ground the shielded wire at one point on the signal receiving side.

3.4 Grounding
Grounding should be performed as stated below.
• The grounding resistance should be 100Ω or less.
• Independent grounding should be performed for best results.
When independent grounding is not performed, perform "shared grounding" as shown in the following
figure.
→ For details, refer to User’s Manual - Hardware Edition of the PLC Series.

PLC Other PLC Other PLC Other

equipment equipment equipment

Independent grounding Shared grounding Common grounding

Best condition Good condition Not allowed

• The grounding wire size should be AWG22 to 20 (0.3 to 0.5 mm2).

• The grounding point should be close to the PLC, and all grounding wires should be as short as possible.

G-12
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3G-1DA-BD (1-channel analog Output) 4.1 Writing of D/A Conversion Data

Common Items
4. Programming
This chapter describes how to create programs that can output the analog data using the 1DA-BD. B

FX3UC-4AD
FX3U-4AD
4.1 Writing of D/A Conversion Data
1) The input digital data will be converted into analog data and then output to the terminals.
2) If data is stored in the special devices, the averaging time can be set, and the output mode can be C
specified.

FX3U-4AD-ADP
3) Special auxiliary relays (10 points) and special data registers (10 points) are assigned respectively to the
analog expansion board connected to the option connector 1 and the analog expansion board connected
to the option connector 2 in this order.
→ For a detailed description of special device assignment, refer to Section 4.2.
• FX3G Series PLC D

FX3G-2AD-BD
FX3G Series PLC

Sequence Program

E
Special auxiliary relays: Special auxiliary relays:

FX3U-4DA
M8260 to M8269 M8270 to M8279
Special data register: Special data register:
D8260 to D8269 D8270 to D8279

Option connector 1 Option connector 2

D/A D/A
F
FX3G-1DA-BD FX3G-1DA-BD

FX3U-4DA-ADP
1st 2nd*1

The analog expansion board connected to the option connector 1 is regarded as the 1st unit, and the
analog expansion board connected to the option connector 2 is regarded as the 2nd unit.
*1. The second analog expansion board is not available in the 14-point and 24-point type main unit. G

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

G-13
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3G-1DA-BD (1-channel analog Output) 4.2 List of Special Devices

4.2 List of Special Devices

If 1DA-BD is connected, special devices will be assigned automatically as shown in the following table:
R: Read / W: Write
Device number
Special
1st 2nd Description Attribute Reference
device
board board
Section
M8260 M8270 Switches the output mode. R/W
4.3
M8261 to M8271 to
Special Unused (Do not use.) - -
M8263 M8273
auxiliary
relay Sets the cancel of output holding Section
M8264 M8274 R/W
function. 4.4
M8265 to M8275 to
Unused (Do not use.) - -
M8269 M8279
Section
D8260 D8270 Output setting data R/W
4.5
D8261 to D8271 to
Special Unused (Do not use.) - -
D8267 D8277
data
register Section
D8268 D8278 Error status R/W
4.6
Section
D8269 D8279 Model code = 4 R
4.7

4.3 Switching of Output Mode

Turn the special auxiliary relay on/off to switch the output mode of 1DA-BD between the current output mode
and the voltage output mode.
To switch the output mode, use the following special auxiliary relays:
Special auxiliary relay
Description
1st board 2nd board
OFF:Voltage output
M8260 M8270 Switches the output mode.
ON :Current output

1. Program Example
To switch the output mode, create a sequence program as follows:

To switch the channel output mode of the

1st analog board to the voltage output mode:
M8001
M8260
Normally OFF

G-14
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3G-1DA-BD (1-channel analog Output) 4.4 Output Holding Function Cancellation Setting

A
4.4 Output Holding Function Cancellation Setting

Common Items
This setting can hold the analog data output or to output the offset data (0V for voltage output mode, 4mA for
current output mode) when the PLC stops.
To cancel or set the output holding function, use the following special auxiliary relays:
Special auxiliary relay
B
Description

FX3UC-4AD
FX3U-4AD
1st board 2nd board
OFF: Holds the analog data output
Cancel output holding function just before stop of the PLC.
M8264 M8274
setting. ON : Outputs the offset data at
stop of the PLC.
C

FX3U-4AD-ADP
1. Program Example
To set or cancel the output holding function, create a sequence program as follows:

To set the output holding function

for the 1st analog board: D

FX3G-2AD-BD
M8001
M8264
Normally OFF

4.5 Output Setting Data E

FX3U-4DA
Numeric data type: Decimal (K)
The 1DA-BD performs D/A conversion on the output setting data (digital data) into analog data, and outputs
the analog data.
Use the special data registers shown in the following table for the output setting data:
Special data register F
Description

FX3U-4DA-ADP
1st board 2nd board
D8260 D8270 Output setting data

1. Program Example
G

FX3G-1DA-BD
M8000 Performs D/A conversion using the digital
FNC 12 D100 D8260 data stored in the D100 for the 1st analog
Normally ON
MOV board.

Performs D/A conversion using the digital

FNC 12
H
D101 D8270 data stored in the D101 for the 2nd analog
MOV board.
FX3U-4AD-PT

Using the indicator or the sequence program, input the digital data to be subject to D/A conversion (to be
output as analog data) in D100 and D101.
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

G-15
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3G-1DA-BD (1-channel analog Output) 4.6 Error Status

4.6 Error Status

1. Description of setting
If an error is detected on 1DA-BD, the error status data will be stored in the corresponding special data
register.
The following table shows the special data registers that store the error status data:

Special data register

Description
1st board 2nd board
D8268 D8278 Stores the error status data.

Check the ON/OFF status of each bit of the error status data register to check the description of the error.
Errors are assigned to the bits as shown in the following table. Create a program to detect errors.

Bit Description
b0 Output data setting error
b1 to b3 Unused
b4 EEPROM error
b5 to b15 Unused

2. Program Example

M8000 FNC 12
D8268 K4M0
MOV
Normally
ON
M0
Y000 Output data setting error on
1st board.
M4
Y004 EEPROM error on the 1st board.

4.7 Model Code

Initial value: K4
Numeric data type: Decimal (K)

1. Description of setting
When the 1DA-BD is connected, model code "4" is stored in the corresponding special data register.
The following table shows the special data registers that store the model code:
1st board 2nd board Description
D8269 D8279 Model code

Use the special data registers above to check whether 1DA-BD is connected or not.

2. Program Example
Checks the model code
FNC 224 D8269 K4 Y007 of the 1st analog board.
LD =

G-16
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3G-1DA-BD (1-channel analog Output) 4.8 Basic Program Example

A
4.8 Basic Program Example

Common Items
Create the following basic program example to output D/A converted analog data.
The following program will set the 1st board to the voltage output mode and 2nd board to current output
mode, and will set digital data in D100 and D101 for D/A conversion.
M8001
B
Sets the output mode of the 1st board to the voltage

FX3UC-4AD
FX3U-4AD
M8260
output mode (0 V to 10 V).
Normally
OFF
M8264 Sets the output holding function for the 1st board.

M8000

Normally
M8270 Sets the output mode of the 2nd board to the current
output mode (4 mA to 20 mA). C

FX3U-4AD-ADP
ON
M8274 Cancels the output holding function for the 2nd board.

M8000
FNC 12 D100 D8260 Performs D/A conversion with the digital data stored
MOV in D100 for the 1st board.

FNC 12 D101 D8270 Performs D/A conversion with the digital data stored
D
in D101 for the 2nd board.

FX3G-2AD-BD
MOV

Using the indicator or the sequence program, input the digital data to be subject to D/A conversion (to be
output as analog data) in D100 and D101.

FX3U-4DA
F

FX3U-4DA-ADP
G

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

G-17
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Changing of Output Characteristics
FX3G-1DA-BD (1-channel analog Output) 5.1 Example: Changing of Voltage Output Characteristics

5. Changing of Output Characteristics

The output characteristics can be changed using sequence programs in FX3G Series PLCs.

5.1 Example: Changing of Voltage Output Characteristics

This section describes an example of a program that can change the digital value range from 400 to 2000
(when analog output range is 1 to 5V) to 0 to 10000.
A specified digital value is inputted into D100.

1. Output characteristics

subject to D/A conversion

Voltage output characteristics Digital value characteristics
(product specifications)

Specified digital output

to be changed

value to be actually
10V
Analog output

Y-axis

5V 2000
(5V)

1V 400
(1V)
0 400 2000 4000 X-axis
0 10000
Digital value input
Desired digital value (D100)

2. Example of program
For example, create the following program to change the digital output data (D100) of the 1st analog board.

M8001
M8260 Sets the output mode of 1st board
Normally to the voltage output mode (0V to 10V).
OFF

M8264 Sets the output mode to the

output holding mode.

FNC 230 FNC 237 Check to make sure the digital

D100 K0 D100 K10000 M10
LD>= AND<= value (D100) is in range.
M10
FNC 22
D100 K1600 D101
MUL

FNC 23
D101 K10000 D103
DDIV Calculation for changing output
characteristics.
FNC 20 Stores the operation result in D8260.
D103 K400 D107
ADD

FNC 12 D107 D8260

MOV

G-18
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 6 Troubleshooting
FX3G-1DA-BD (1-channel analog Output) 6.1 PLC Version Number Check

Common Items
6. Troubleshooting
This chapter describes the troubleshooting methods and error status. B
If analog data is not output, or if the proper analog value is not output, check the following items:

FX3UC-4AD
FX3U-4AD
• Version number of PLC
• Installation
• Wiring
• Special devices C
• Programs

FX3U-4AD-ADP
• Error status

6.1 PLC Version Number Check

D
• Check the version number of the FX3G Series PLC. The version number should be 1.10 or later.

FX3G-2AD-BD
→ For a detailed description of the version number check method, refer to Section 1.3.

6.2 Checking installation

• Confirm that the 1DA-BD is attached correctly to the main unit. Confirm also that the POW indicator lamp
E

FX3U-4DA
of the 1DA-BD is lit correctly.
→ For a detailed description of installing, refer to FX3G User’s Manual-Hardware Edition.

6.3 Wiring Check

F
Check the following items for wiring:

FX3U-4DA-ADP
1. Analog output line
Use the 2-core twisted shielded pair cable for the analog output line. In addition, be sure to separate the
analog output line from other power lines or inductive lines.
→ For a detailed description of wiring, refer to Chapter 3.
G

FX3G-1DA-BD
6.4 Special Device Check
Check whether the special devices for the 1DA-BD are being used correctly:

1. Output mode switching H

Verify that the special device for switching the output mode is correctly set.
FX3U-4AD-PT

Turn off the device to set the output mode to the voltage output mode. Turn on the device to set the output
mode to the current output mode.
-ADP

2. Output setting data

Check that the special device is correctly selected. This special device should be selected depending on the
connected position and the channel. I
FX3U-4AD-PTW

3. Error status
Check that no error is detected in the 1DA-BD.
If an error is detected, check the details of the error, and then check the wiring and programs.
-ADP

→ For a detailed description of special devices, refer to Chapter 4.

J
FX3U-4AD-PNK
-ADP

G-19
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 6 Troubleshooting
FX3G-1DA-BD (1-channel analog Output) 6.5 Program Check

6.5 Program Check

Check the following items for the program:

1. Device for setting specified digital value

Check that different values are not written to this device using other programs.

6.6 Error Status Check

If an error occurs in the 1DA-BD, the corresponding bit will turn on.

Bit Description
b0 Output data setting error
b1 to b3 Unused
b4 EEPROM error
b5 to b15 Unused
To solve the problem, refer to the troubleshooting method described below:

1. Output data setting error (b0)

1) Description of error
The specified digital value is outside the specified range.
Analog data will not be correctly output.
2) Remedy
Check that the specified digital value is within the specified range.

2. EEPROM error (b4)

1) Description of error
The adjustment data set in the EEPROM before delivery from our factory cannot be read out properly or
is destroyed.
2) Remedy
Please contact the nearest Mitsubishi Electric distributor office.

G-20
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition
FX3U-4AD-PT-ADP (4-channel Platinum Resistance Thermometer Data Input)

Common Items
B

FX3UC-4AD
FX3U-4AD
FX3G/FX3U/FX3UC Series Programmable
Controllers C

FX3U-4AD-ADP
User's Manual [Analog Control Edition]
FX3U-4AD-PT-ADP
D
(4-channel Platinum Resistance Thermometer Data Input)

FX3G-2AD-BD
E

FX3U-4DA
F

FX3U-4DA-ADP
G

FX3G-1DA-BD

H
FX3U-4AD-PT

Foreword
-ADP

This manual describes the specifications, wiring, and operation methods for the FX3U-4AD-PT-ADP special
adapter (4-channel platinum resistance thermometer input) and should be read and understood before I
attempting to install or use the unit.
FX3U-4AD-PTW

Store this manual in a safe place so that you can take it out and read it whenever necessary. Always forward
it to the end user.
-ADP

This manual confers no industrial property rights or any rights of any other kind, nor does it confer any patent
licenses. Mitsubishi Electric Corporation cannot be held responsible for any problems involving industrial property
rights which may occur as a result of using the contents noted in this manual.
J
FX3U-4AD-PNK

© 2005 MITSUBISHI ELECTRIC CORPORATION

-ADP

H-1
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition
FX3U-4AD-PT-ADP (4-channel Platinum Resistance Thermometer Data Input)

H-2
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 1 Outline
FX3U-4AD-PT-ADP (4-channel Platinum Resistance Thermometer Data Input) 1.1 Outline of Functions

Common Items
1. Outline
This chapter describes the outline of FX3U-4AD-PT-ADP (referred to as PT-ADP). B

FX3UC-4AD
FX3U-4AD
1.1 Outline of Functions
The FX3U-4AD-PT-ADP is an analog special adapter. Connect the FX3U-4AD-PT-ADP to the FX3U/FX3UC/
FX3G Series PLC to read the temperature data from the 4-channel platinum resistance thermometers.
C
1) Up to 4 PT-ADP units can be connected to the FX3U/FX3UC Series PLC.

FX3U-4AD-ADP
Up to 2*1 PT-ADP units can be connected to the FX3G Series PLC.
(including other analog special adapters)
2) After connection of the platinum resistance thermometer (Pt100), measurement of temperature will be
possible.
3) The temperature measurement data will be automatically written to the special data registers of the FX3U/ D
FX3UC/FX3G Series PLC.

FX3G-2AD-BD
System Point and section to be
referred to

FX3U, FX3UC Series PLC : 4 maximum

FX3G Series PLC : 2*1 maximum
(including other analog special adapters)
……
Number of connectable
units E
FX3U/FX3UC /FX3G Series PLC

FX3U-4DA
To check the connectable
…… PLC model number, refer

+ + to Section 1.3.

FX3U-4DA-ADP
Expansion
4th 3rd 2nd 1st
adapter adapter adapter adapter board*2
For a detailed
…… description of wiring,
Analog data refer to Chapter 3.

Platinum resistance thermometer G

sensor(Pt100)

FX3G-1DA-BD
For FX3U, FX3UC
Series PLC For a detailed description
Description
Measurement
Special devices
1st adapter M/D8260 to M/D8269
…… of special devices, refer to
Chapter 4. H
temperature Transfer direction
FX3U-4AD-PT

For a detailed description

2nd adapter M/D8270 to M/D8279 of a basic program, refer to
Setting of temperature Section 4.8.
unit 3rd adapter M/D8280 to M/D8289
Setting of averaging time
-ADP

4th adapter M/D8290 to M/D8299

Refer to the system configuration shown in the User's Manual - Hardware Edition to check the number of connectable units
and to configure the entire system. I
FX3U-4AD-PTW

*1. Only 1 analog special adapter can be connected to the 14-point and 24-point type main unit.
*2. The expansion board is not required when connecting with the FX3UC (D, DSS) PLC.
-ADP

For the FX3G Series PLC a connector conversion adapter is used.

J
FX3U-4AD-PNK
-ADP

H-3
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 1 Outline
FX3U-4AD-PT-ADP (4-channel Platinum Resistance Thermometer Data Input) 1.2 Setup Procedure Before Starting Operation

1.2 Setup Procedure Before Starting Operation

Before starting analog input using the PT-ADP, follow the procedure below to set up the system:

FX3U-4AD-PT-ADP

Refer to Chapter 1.

Outline Outline of system:

•Compatible PLC version number
•Compatible programming tool version
Refer to Chapter 2. number
Specifications check Specifications:
•Operation environment
•Performance specifications
Refer to the common
•Input characteristics
pages.

System configuration and selection System configuration:

(Refer to the common pages for analog
control.)
Refer to Chapter 3.
•Selection of units
Wiring Wiring:
•Power supply line
•Platinum resistance thermometer
Refer to Chapter 4. sensor line
Programming Programming:
•Details of special devices
•Examples of basic programs

If the error status data or the input digital value is

abnormal, refer to Chapter 5 "Troubleshooting."

H-4
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 1 Outline
FX3U-4AD-PT-ADP (4-channel Platinum Resistance Thermometer Data Input) 1.3 Connectable PLC and Its Version Number

A
1.3 Connectable PLC and Its Version Number

Common Items
PT-ADP is compatible with the following PLC.

Compatible PLC Version number Date of production

FX3U Series PLC Ver. 2.20 or later After May 2005 (initial production) B

FX3UC-4AD
FX3U-4AD
FX3UC Series PLC Ver. 1.30 or later After August 2004
FX3G Series PLC Ver. 1.00 or later After June 2008 (initial production)

1. Version check
Special data register D8001 contains information for determining the PLC version.
C

FX3U-4AD-ADP
D8001 2 4 1 0 0
PLC type and
version number Version data (Example: Ver. 1.00)
PLC type Example: 24 = FX3U and FX3UC series
( ) D
26 = FX3G series

FX3G-2AD-BD
2. How to look at the manufacturer's serial number
The year and month of production of the product can be seen from the manufacturer's serial number
"SERIAL" indicated on the label adhered to the right side of the product.

Example:
E

FX3U-4DA
FX3U-48MR/ES(production number : 570001)

Right side MITSUBISHI PROGRAMMABLE

CONTROLLER

MODEL FX3U-48MR/ES
100-240VAC 50/60Hz 40W
OUT:30VDC/240VAC 2A(COSφ=1) F
SERIAL 570001

FX3U-4DA-ADP
80M1 IND. CONT. EQ.
MITSUBISHI ELECTRIC CORPORATION
MADE IN JAPAN

5 7 0 0 0 1
G

FX3G-1DA-BD
Control number
Month (Example: 7 = July), 1 to 9 = January to September,
X = October, Y = November, Z = December
Year (Example: 5 = 2005), last digit of dominical year

1.4 Compatible Programming Tool Version Number H

FX3U-4AD-PT

Use the programming tool with the following version number to create programs for PT-ADP of the FX3U/
FX3UC/FX3G Series PLC:
-ADP

Software Version number Remarks

GX Developer Ver. SW8 P or later
When selecting a model, select FX3U(C)*1.
I
• SW D5C-GPPW-J (Ver. 8.13P)
FX3U-4AD-PTW

• SW D5C-GPPW-E (Ver. 8.72A or later) When selecting a model, select FX3G.

-ADP

If a programming tool with the wrong version number is used, programming will not be possible.
*1. For Ver. 8.13P to 8.24A of GX Developer, select FX3UC for the PLC type.
J
FX3U-4AD-PNK
-ADP

H-5
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 Specifications
FX3U-4AD-PT-ADP (4-channel Platinum Resistance Thermometer Data Input) 2.1 Generic Specifications

2. Specifications
This chapter describes the general, power supply, and performance specifications for the PT-ADP.

2.1 Generic Specifications

Item Specifications
Ambient 0 to 55°C (32 to 131°F) when operating
temperature -25 to 75°C (-13 to 167°F) when stored
Relative
5 to 95%RH (no condensation) when operating
humidity
Frequency Acceleration Half amplitude
(Hz) (m/s2) (mm)
Tested 10 times in each
Vibration 10 - 57 - 0.035 direction (X-, Y-, and Z-
DIN Rail Mounting
resistance 57 - 150 4.9 - axis directions) (Total:
80 min, each)
10 to 57 − 0.075
Direct Mounting*1
57 to 150 9.8 −
Shock
147 m/s2 Acceleration, Action time: 11ms, 3 times by half-sine pulse in each direction X, Y, and Z
resistance
Noise Using noise simulator of:
resistance Noise voltage: 1,000Vp-p / Noise width: 1µs / Rise: 1ns / Cycle: 30 to 100Hz
Dielectric
withstand 500 V AC, for 1 min
voltage Between all terminals and ground terminal
Insulation 5MΩ or more using 500V DC
resistance insulation resistance meter
Class D grounding (grounding resistance: 100 Ω or less)
Grounding
<Common grounding with a heavy electrical system is not allowed.>*2
Working
Free from corrosive or flammable gas and excessive conductive dusts
environment
Working
< 2000m*3
altitude

*1. If PT-ADP is connected to the FX3UC Series PLC, direct installation is not possible.

*2.
PLC Other PLC Other PLC Other
equipment equipment equipment

Independent grounding Shared grounding Common grounding

Best condition Good condition Not allowed

→ For a detailed description of the grounding, refer to Section 3.6.

*3. If the pressure is higher than the atmospheric pressure, do not use the PT-ADP.
The PT-ADP may malfunction.

H-6
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 Specifications
FX3U-4AD-PT-ADP (4-channel Platinum Resistance Thermometer Data Input) 2.2 Power Supply Specifications

A
2.2 Power Supply Specifications

Common Items
Items Specification
A/D conversion circuit 24V DC +20% -15%, 50mA B
driving power (It is necessary to connect a 24V DC power supply to the terminal block.)

FX3UC-4AD
FX3U-4AD
5V DC, 15mA
Interface driving power (Since the internal power is supplied from the FX Series main unit, it is not
necessary to supply the power.)

2.3 Performance Specifications

C

FX3U-4AD-ADP
Specifications
Items
Centigrade (°C) Fahrenheit (°F)

Input signal
3-wire platinum resistance thermometer sensor
Pt100 JIS C 1604-1997
D

FX3G-2AD-BD
Rated temperature
-50°C to +250°C -58°F to +482°F
range
Digital output -500 to +2500 -580 to +4820
Resolution 0.1°C 0.18°F

Total accuracy
• ±0.5% for full scale (when ambient temperature is 25°C±5°C) E
• ±1.0% for full scale (when ambient temperature is in the range from 0 to 55°C)

FX3U-4DA
• FX3U/FX3UC Series PLC : 200µs (The data will be updated at every scan time.)
A/D conversion
• FX3G Series PLC : 250µs (The data will be updated at every scan time.)
time
→For a detailed description of data update, refer to Section 2.4.

+2550 +4910
F

FX3U-4DA-ADP
+2500 +4820
+255°C

+491°F
Input
characteristics
-50°C 0 -58°F 0
+250°C +482°F G
-55°C

-67°F

FX3G-1DA-BD
-500 -580
-550 -670

• The photocoupler is used to insulate the analog input area from the PLC.
• The DC/DC converter is used to insulate the power supply line from the analog input
Insulation method
area. H
• Channels are not insulated from each other.
FX3U-4AD-PT

Number of I/O 0 points

points occupied (This number is not related to the maximum number of input/output points of the PLC.)
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

H-7
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 Specifications
FX3U-4AD-PT-ADP (4-channel Platinum Resistance Thermometer Data Input) 2.4 A/D Conversion Time

2.4 A/D Conversion Time

This section describes the A/D conversion time.

2.4.1 When connected to a FX3U, FX3UC PLC

1. A/D conversion and special data register update timing

A/D conversion is performed at every scan time of the PLC.
During execution of END instruction, the PLC performs A/D conversion, reads out the A/D converted data,
and then writes the data in the special data registers.
FX3U-4AD-PT-ADP FX3U-4AD-PT-ADP
n'th 1st FX3U/FX3UC Series PLC

Sequence
program
A/D conversion start
A/D command
conversion
Digital value writing
200µs/4ch
A/D conversion start END instruction
A/D command
conversion
Digital value writing
200µs/4ch

2. A/D conversion during PLC stop

Even if the PLC is stopped, A/D conversion will be performed and the special data registers will be updated.

3. If two or more analog special adapters are connected

During execution of the END instruction, data will be read out from all the connected adapters (in the order of
1st adapter → 2nd adapter … 4th adapter).

4. A/D conversion speed (data update time)

During execution of the END instruction, the A/D converted data of all 4 channels will be read out in 200µs,
and the data read out will be written to the special data registers.
END instruction execution time will be "200µs × number of connected adapters."

H-8
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 Specifications
FX3U-4AD-PT-ADP (4-channel Platinum Resistance Thermometer Data Input) 2.5 Temperature Measurement

A
2.4.2 When connected to a FX3G PLC

Common Items
1. A/D conversion and special data register update timing
A/D conversion is performed at every scan time of the PLC.
During execution of END instruction, the PLC performs A/D conversion, reads out the A/D converted data,
and then writes the data in the special data registers. B

FX3UC-4AD
FX3U-4AD
FX3U-4AD-PT-ADP FX3U-4AD-PT-ADP
2nd 1st FX3G Series PLC

Sequence

A/D conversion start

program C

FX3U-4AD-ADP
A/D command
conversion
Digital value writing
250µs/4ch
A/D conversion start END instruction
A/D
conversion
command
D

FX3G-2AD-BD
Digital value writing
250µs/4ch

2. A/D conversion during PLC stop

Even if the PLC is stopped, A/D conversion will be performed and the special data registers will be updated. E

FX3U-4DA
3. If two analog special adapters are connected
During execution of the END instruction, data will be read out from all the connected adapters (in the order of
1st adapter → 2nd adapter).

4. A/D conversion speed (data update time)

During execution of the END instruction, the A/D converted data of all 4 channels will be read out in 250µs, F

FX3U-4DA-ADP
and the data read out will be written to the special data registers.
END instruction execution time will be "250µs × number of connected adapters."

2.5 Temperature Measurement

To stabilize the temperature measurement, warm-up the system for 30 minutes or more after power-on.
G

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

H-9
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3U-4AD-PT-ADP (4-channel Platinum Resistance Thermometer Data Input)

3. Wiring
This chapter describes the PT-ADP wiring.
Observe the following caution to wire the PT-ADP.

WIRING PRECAUTIONS

• Make sure to cut off all phases of the power supply externally before attempting wiring work.
Failure to do so may cause electric shock or damages to the product.

WIRING PRECAUTIONS

• Connect the DC power supply wiring to the dedicated terminals described in this manual.
If an AC power supply is connected to a DC input/output terminal or DC power supply terminal, the PLC will be
burnt out.
• Do not wire vacant terminals externally.
Doing so may damage the product.
• Perform class D grounding (grounding resistance: 100Ω or less) to the grounding terminal on the main unit.
Do not use common grounding with heavy electrical systems.
• When drilling screw holes or wiring, make sure cutting or wire debris does not enter the ventilation slits.
Failure to do so may cause fire, equipment failures or malfunctions.
• Make sure to observe the following precautions in order to prevent malfunctions under the influence of noise:
- Do not bundle the power line or twisted shielded cable together with or lay it close to the main circuit, high-
voltage line, or load line.
Otherwise, noise disturbance and/or surge induction are likely to take place. As a guideline, lay the control line
at least 100mm (3.94") or more away from the main circuit, high-voltage line, or load line.
- Ground the shield of the analog input/output cable at one point on the signal receiving side.
However, do not use common grounding with heavy electrical systems.
• Make sure to properly wire to the European terminal board in accordance with the following precautions.
Failure to do so may cause electric shock, a short-circuit, wire breakage, or damage to the product.
- The disposal size of the cable end should be 9 mm (0.35").
- Tightening torque should be between 0.22 to 0.25 N•m.
- Twist the end of strand wire and make sure there are no loose wires.
- Do not solder-plate the electric wire ends.
- Do not connect more than the specified number of wires or electric wires of unspecified size.
- Affix the electric wires so that neither the terminal block nor the connected parts are directly stressed.

H-10
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3U-4AD-PT-ADP (4-channel Platinum Resistance Thermometer Data Input) 3.1 Terminal Layout

A
3.1 Terminal Layout

Common Items
The terminals of the PT-ADP are arranged as follows:

FX3UC-4AD
FX3U-4AD
FX3U-4AD-PT
-ADP
POWER

Signal Application C
24+
24+

FX3U-4AD-ADP
External power
24-
24-

Ground terminal
L1+
L1+

Channel-1 platinum
resistance thermometer
L1-

L1-
sensor input
I1-

I1-
D
L2+

L2+ Channel-2 platinum

L2-

resistance thermometer

FX3G-2AD-BD
L2-
sensor input
I2-

I2-
L3+

L3+ Channel-3 platinum

L3- resistance thermometer
L3-

I3- sensor input

I3-

L4+ Channel-4 platinum E

L4+

L4- resistance thermometer

L4-

FX3U-4DA
sensor input
I4-
I4-

FX3U-4DA-ADP
G

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

H-11
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3U-4AD-PT-ADP (4-channel Platinum Resistance Thermometer Data Input) 3.2 Applicable Cable and Terminal Tightening Torque

3.2 Applicable Cable and Terminal Tightening Torque

Use the following cables to connect with the counterpart equipment. Terminate the cable end as shown below.
To connect the platinum resistance thermometer sensor, use the cable supplied with the Pt100 platinum
resistance thermometer or a twisted pair shielded cable.

1. Cables
Applicable cable and tightening torque
Wire size Tightening
Termination
(stranded/single-wire) torque
0.3mm2 to 0.5mm2 • To connect a stranded cable, peel the cover off the cable
Single-wire and then twist the core before connection.
(AWG22 to 20)
• To connect a single-wire cable, just strip the cover off the
2-wire 0.3mm2 (AWG22) cable before connection.
0.22 N•m to • Rod terminal with insulation sleeve
Rod 0.3mm2 to 0.5mm2 0.25 N•m (recommended terminal)
terminal (AWG22 to 20) AI 0.5-8WH : Manufactured by Phoenix Contact
with (Refer to the rod terminal
• Caulking tool
insulation external view shown in
CRIMPFOX ZA 3 : Manufactured by Phoenix Contact
sleeve the following figure.)
(or CRIMPFOX UD 6 : Manufactured by Phoenix Contact)

2. Termination of cable ends

To terminate the cable, treat the stranded/single wire directly or use a rod terminal with insulation sleeve.
• To directly terminate the end of a stranded/single-wire cable: Termination of cable end
- Twist the end of the stranded cable so that the "barbed wires"
cannot protrude.
- Do not solder-plate the end of the cable.
9mm
(0.35")
• To terminate cable end using a rod terminal with insulation sleeve:
If the cable sheath is too thick, it may be difficult to insert the cable into Insulation sleeve Contact area
(Crimp area)
the insulation sleeve. For this reason, select an appropriate cable while
referring to the external view.
8mm (0.31")
Manufacturer Model Caulking tool 2.6mm 14mm
CRIMPFOX ZA 3 (0.1")
Phoenix Contact AI 0.5-8WH (0.55")
(or CRIMPFOX UD 6)

3. Tool
• To tighten terminals, use a small-sized screwdriver whose head is straight and is not widened as shown in
the figure to the right.

Note:
If the diameter of screwdriver grip is too small, tightening torque will not
The head
be able to be achieved. Use the following recommended screwdriver or should be
an appropriate replacement (grip diameter: approximately 25mm). straight.
Manufacturer Type
Phoenix Contact SZS 0.4 × 2.5 0.4mm 2.5mm
(0.01") (0.09")

H-12
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3U-4AD-PT-ADP (4-channel Platinum Resistance Thermometer Data Input) 3.3 Power Supply Line

A
3.3 Power Supply Line

Common Items
Connect the 24V DC power supply line of the PT-ADP to the 24+ and 24- terminals of the terminal block.

3.3.1 To connect to FX3G, FX3U Series PLC

B

FX3UC-4AD
FX3U-4AD
1. To use an external power 2. To use the 24V DC power of the PLC

PT-ADP FX3G/F3U PT-ADP FX3G/F3U

Series PLC Series PLC
+5V (Main unit) +5V (Main unit)

FX3U-4AD-ADP
24- 24+ 24- 24+ 0V 24V D

FX3G-2AD-BD
Terminal Terminal
block block

Class-D Class-D
24V DC grounding grounding
E
Caution regarding connection of the power supply line:

FX3U-4DA
• Ground the " " terminal to a class-D grounding power supply line (100Ω or less) together with the
ground terminal of the PLC main unit.
• For the timing of power-on/off when using an external power supply, see the following manual of the PLC
to be connected.
→ Refer to the FX3G Series User's Manual - Hardware Edition. F
→ Refer to the FX3U Series User's Manual - Hardware Edition.

FX3U-4DA-ADP
3.3.2 To Connect To The FX3UC Series PLC

PT-ADP FX3UC Series PLC

(Main unit)
FX2NC
Series PLC
G

FX3G-1DA-BD
+5V (Input extension
block)

Power
H
Power crossover
FX3U-4AD-PT

Power
connector connector connector

24- 24+ 24- 24+ 24- 24+ 24- 24+

-ADP

Terminal Black Red Green Black Red

block
I
FX3U-4AD-PTW

Class-D
24V DC grounding
-ADP

Caution regarding connection of the power supply line:

J
• For the 24V DC power supply line, be sure to use the same power as the FX3UC Series PLC.
FX3U-4AD-PNK

• Ground the " " terminal to a class-D grounding power supply line (100Ω or less) together with the
grounding terminal of the PLC main unit.
-ADP

H-13
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3U-4AD-PT-ADP (4-channel Platinum Resistance Thermometer Data Input) 3.4 Selection of the Platinum Resistance Thermometer Sensor

3.4 Selection of the Platinum Resistance Thermometer Sensor

Select the Pt100 3-wire platinum resistance thermometer sensor.
This thermometer will not be affected by voltage drop in the wiring area, and will ensure accurate
measurement.

3.5 Wiring of the Platinum Resistance Thermometer Sensor

PT-ADP
+5V

Twisted shielded Terminal 4.7kΩ 4.7kΩ

Pt100 cable*1 block
100kΩ ch
L +
L -
I - 100kΩ

Shield +5V

Twisted shielded 4.7kΩ 4.7kΩ

Pt100 cable*1
100kΩ ch
L +
L -
100kΩ
I -

+5V

24+
24V DC
24-

Class-D grounding
L +, L -, I -, ch : represents the channel number.

*1. Separate the cable of the platinum resistance thermometer sensor from the other power cables or
areas easily affected by inductive noise (of the commercial power, etc.).

3.6 Grounding
Grounding should be performed as stated below.
• The grounding resistance should be 100Ω or less.
• Independent grounding should be performed for best results.
When independent grounding is not performed, perform "shared grounding" as shown in the following
figure.
→ For details, refer to the User’s Manual - Hardware Edition of the PLC Series.

PLC Other PLC Other PLC Other

equipment equipment equipment

Independent grounding Shared grounding Common grounding

Best condition Good condition Not allowed

• The grounding wire size should be AWG22 to 20 (0.3 to 0.5 mm2).

• The grounding point should be close to the PLC, and all grounding wires should be as short as possible.

H-14
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-PT-ADP (4-channel Platinum Resistance Thermometer Data Input) 4.1 Loading of A/D Conversion Data

Common Items
4. Programming
This chapter describes how to create programs that can read analog data using the PT-ADP. B

FX3UC-4AD
FX3U-4AD
4.1 Loading of A/D Conversion Data
1) The input analog data will be converted into digital data and then stored in the special devices of the
FX3U/FX3UC/FX3G Series PLC.
C
2) If data is stored in the special devices, the averaging time can be set, and the input mode can be

FX3U-4AD-ADP
specified.
3) Special auxiliary relays (10 points) and special data registers (10 points) are assigned automatically
starting from the adapter nearest to the main unit.
→ For a detailed description of special device assignment, refer to Section 4.2.
• FX3U, FX3UC Series PLC D

FX3G-2AD-BD
Communi- High-speed
cation input/output
FX3U-4AD FX3U-4AD FX3U-4AD special FX3U-4AD special
-PT-ADP -PT-ADP -PT-ADP adapter -PT-ADP adapter FX3U/FX3UC Series PLC

4th 3rd 2nd 1st Special devices

Special auxiliary relays:
E

FX3U-4DA
A/D M8260 to M8269
Special data registers:
D8260 to D8269

Special auxiliary relays:

M8270 to M8279
A/D Special data registers:
D8270 to D8279
Sequence
F
program

FX3U-4DA-ADP
Special auxiliary relays:
A/D M8280 to M8289
Special data registers:
D8280 to D8289

A/D
Special auxiliary relays:
M8290 to M8299 G
Special data registers:

FX3G-1DA-BD
D8290 to D8299

The analog special adapter nearest to the main unit is counted as the 1st analog special adapter, and the
next adapter as the 2nd analog special adapter, and so on. However, in this case, do not include the high-
speed input/output special adapter and the communication special adapter.
H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

H-15
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-PT-ADP (4-channel Platinum Resistance Thermometer Data Input) 4.1 Loading of A/D Conversion Data

• FX3G Series PLC

Communi-
cation Connector
FX3U-4AD FX3U-4AD
special conversion
-PT-ADP -PT-ADP
adapter adapter FX3G Series PLC

2nd*1 1st
Special devices
Special auxiliary relays:
M8280 to M8289
A/D Special data registers:
D8280 to D8289 Sequence
Program
Special auxiliary relays:
M8290 to M8299
A/D Special data registers:
D8290 to D8299

The analog special adapter nearest to the main unit is counted as the 1st analog special adapter, and the
next adapter as the 2nd analog special adapter. However, in this case, do not include the connector
conversion adapter and the communication special adapter.
*1. The second special adapter is not available in the 14-point and 24-point type main unit.

H-16
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-PT-ADP (4-channel Platinum Resistance Thermometer Data Input) 4.2 List of Special Devices

A
4.2 List of Special Devices

Common Items
If the PT-ADP is connected, special devices will be assigned automatically as shown in the following table:
• FX3U, FX3UC Series PLC
R: Read / W: Write
Special Device number
B
Description Attribute Reference

FX3UC-4AD
FX3U-4AD
device 1st 2nd 3rd 4th
Section
Special M8260 M8270 M8280 M8290 Selects the temperature unit. R/W
4.3
auxiliary
relay M8261 to M8271 to M8281 to M8291 to
Unused (Do not use.) - -
M8269 M8279 M8289 M8299
C
Channel-1 temperature

FX3U-4AD-ADP
D8260 D8270 D8280 D8290 R
measurement data
Channel-2 temperature
D8261 D8271 D8281 D8291 R
measurement data Section
Channel-3 temperature 4.4
D8262 D8272 D8282 D8292 R
measurement data
D
Channel-4 temperature
D8263 D8273 D8283 D8293 R

FX3G-2AD-BD
measurement data
Averaging time for channel 1
Special D8264 D8274 D8284 D8294 R/W
(Setting range: 1 to 4095)
data
register Averaging time for channel 2
D8265 D8275 D8285 D8295 R/W
(Setting range: 1 to 4095) Section
4.5
E
Averaging time for channel 3
D8266 D8276 D8286 D8296 R/W

FX3U-4DA
(Setting range: 1 to 4095)
Averaging time for channel 4
D8267 D8277 D8287 D8297 R/W
(Setting range: 1 to 4095)
Section
D8268 D8278 D8288 D8298 Error status R/W
4.6
Section
F
D8269 D8279 D8289 D8299 Model code = 20 R

FX3U-4DA-ADP
4.7

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

H-17
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-PT-ADP (4-channel Platinum Resistance Thermometer Data Input) 4.3 Selection of Temperature Unit

• FX3G Series PLC

R: Read / W: Write
Device number
Special device Description Attribute Reference
1st 2nd
M8280 M8290 Selects the temperature unit. R/W Section 4.3
Special auxiliary relay M8281 to M8291 to
Unused (Do not use.) - -
M8289 M8299
Channel-1 temperature
D8280 D8290 R
measurement data
Channel-2 temperature
D8281 D8291 R
measurement data
Section 4.4
Channel-3 temperature
D8282 D8292 R
measurement data
Channel-4 temperature
D8283 D8293 R
measurement data
Averaging time for channel 1
Special data register D8284 D8294 R/W
(Setting range: 1 to 4095)
Averaging time for channel 2
D8285 D8295 R/W
(Setting range: 1 to 4095)
Section 4.5
Averaging time for channel 3
D8286 D8296 R/W
(Setting range: 1 to 4095)
Averaging time for channel 4
D8287 D8297 R/W
(Setting range: 1 to 4095)
D8288 D8298 Error status R/W Section 4.6
D8289 D8299 Model code = 20 R Section 4.7

4.3 Selection of Temperature Unit

To switch the temperature unit of the PT-ADP turn the special auxiliary relay ON for Fahrenheit (°F) or OFF
for Centigrade (°C).
To switch the temperature unit, use the following special auxiliary relays:
• FX3U, FX3UC Series PLC

Special auxiliary relay

Description
1st 2nd 3rd 4th
Selection of temperature unit:
M8260 M8270 M8280 M8290 OFF: Centigrade (°C)
ON: Fahrenheit (°F)

• FX3G Series PLC

Special auxiliary relay

Description
1st 2nd
Selection of temperature unit:
M8280 M8290 OFF: Centigrade (°C)
ON: Fahrenheit (°F)

1. Program Example (For FX3U, FX3UC Series PLC)

1) To switch the temperature unit to centigrade (°C) 2) To switch the temperature unit to Fahrenheit (°F)
for the 1st adapter: for the 2nd adapter:
M8001 M8000
M8260 M8270
Normally OFF Normally ON

H-18
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-PT-ADP (4-channel Platinum Resistance Thermometer Data Input) 4.4 Temperature Measurement

A
4.4 Temperature Measurement

Common Items
The temperature data input in the PT-ADP will be stored in the special data registers.
The special data registers that store the temperature data are shown in the following table:
• FX3U, FX3UC Series PLC
B
Special data register

FX3UC-4AD
FX3U-4AD
Description
1st 2nd 3rd 4th
D8260 D8270 D8280 D8290 Stores the channel-1 temperature measurement data.
D8261 D8271 D8281 D8291 Stores the channel-2 temperature measurement data.
D8262 D8272 D8282 D8292 Stores the channel-3 temperature measurement data. C
D8263 D8273 D8283 D8293 Stores the channel-4 temperature measurement data.

FX3U-4AD-ADP
• FX3G Series PLC

Special data register

Description D
1st 2nd

FX3G-2AD-BD
D8280 D8290 Stores the channel-1 temperature measurement data.
D8281 D8291 Stores the channel-2 temperature measurement data.
D8282 D8292 Stores the channel-3 temperature measurement data.
D8283 D8293 Stores the channel-4 temperature measurement data.
E

FX3U-4DA
The immediate data or the average data (data averaged in accordance with the specified averaging time) will
be stored in the above data registers as the temperature measurement data.
→ For a detailed description of the averaging time, refer to Section 4.6.

1. Caution regarding temperature measurement

The special data registers for temperature measurement data are for reading only.
F

FX3U-4DA-ADP
Do not change (rewrite) the current data using the sequence program, indicator, or device monitor of the
programming tool.

2. Program Example (For FX3U, FX3UC Series PLC)

M8000
FNC 12
MOV
D8260 D100 Stores the channel-1 temperature measurement
data of the 1st analog special adapter in D100.
G
Normally

FX3G-1DA-BD
ON

FNC 12 D8261 D101 Stores the channel-2 temperature measurement

MOV data of the 1st analog special adapter in D101.

Even if the temperature measurement data is not stored in the D100 or the D101, the D8260 or the D8261
can be directly used in the arithmetic operation instruction or a PID instruction.
H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

H-19
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-PT-ADP (4-channel Platinum Resistance Thermometer Data Input) 4.5 Averaging Time

4.5 Averaging Time

Setting range: 1 to 4095
Initial value: K1
Numeric data type: Decimal (K)
If the averaging time is set for the PT-ADP, the averaged temperature measurement data will be stored in the
D8260 to D8263, D8270 to D8273, D8280 to D8283, and D8290 to D8293. The averaging time can be set for
each channel.
Set the averaging time in the following special data registers:
• FX3U, FX3UC Series PLC

Special data register

Description
1st 2nd 3rd 4th
D8264 D8274 D8284 D8294 Averaging time for channel-1 data
D8265 D8275 D8285 D8295 Averaging time for channel-2 data
D8266 D8276 D8286 D8296 Averaging time for channel-3 data
D8267 D8277 D8287 D8297 Averaging time for channel-4 data

• FX3G Series PLC

Special data register

Description
1st 2nd
D8284 D8294 Averaging time for channel-1 data
D8285 D8295 Averaging time for channel-2 data
D8286 D8296 Averaging time for channel-3 data
D8287 D8297 Averaging time for channel-4 data

1. Cautions regarding averaging time setting

• If the averaging time is set to "1", the immediate data will be stored in the temperature measurement
special data register.
• If the averaging time is set to "2" or more, the average value will be calculated in accordance with the set
averaging time, and the average value obtained will be stored in the temperature measurement special
data register.
• After turning the PLC power on, the average data will be stored in the temperature measurement special
data registers (D8260 to D8263, D8270 to D8273, D8280 to D8283, and D8290 to D8293) until the number
of data items is increased to the set averaging time.
• Set the averaging time in the range from 1 to 4095. If the set value is outside the setting range, the error
signal will be output.
→ For a detailed description of error status, refer to Section 5.5

2. Program Example (For FX3U, FX3UC Series PLC)

M8000 Sets the averaging time to "1" for the channel-1
FNC 12 K1 D8264 data of the 1st analog special adapter.
MOV
Normally
ON

FNC 12 Sets the averaging time to "5" for the channel-2

K5 D8265 data of the 1st analog special adapter.
MOV

H-20
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-PT-ADP (4-channel Platinum Resistance Thermometer Data Input) 4.6 Error Status

A
4.6 Error Status

Common Items
If an error is detected in the PT-ADP, the error status data will be stored in the corresponding special data
register.
The following table shows the special data registers that store the error status data:
• FX3U, FX3UC Series PLC B

FX3UC-4AD
FX3U-4AD
Special data register
Description
1st 2nd 3rd 4th
D8268 D8278 D8288 D8298 Stores the error status data.

C
• FX3G Series PLC

FX3U-4AD-ADP
Special data register
Description
1st 2nd
D8288 D8298 Stores the error status data.
D

FX3G-2AD-BD
Check the ON/OFF status of each bit of the error status data register to determine the error. Errors are
assigned to the bits as shown in the following table. Create a program to detect errors.

Bit Description Bit Description

b0
The temperature measurement data
of channel 1 is outside the specified b5 Averaging time setting error
E

FX3U-4DA
range, or disconnection is detected.
The temperature measurement data
b1 of channel 2 is outside the specified b6 PT-ADP hardware error
range, or disconnection is detected.
The temperature measurement data
b2 of channel 3 is outside the specified b7 PT-ADP communication data error F
range, or disconnection is detected.

FX3U-4DA-ADP
The temperature measurement data
b3 of channel 4 is outside the specified b8 to b15 Unused
range, or disconnection is detected.
b4 EEPROM error - -
G
1. Caution regarding use of error status data

FX3G-1DA-BD
If a PT-ADP hardware error (b6) or PT-ADP communication data error (b7) is detected, it is necessary to clear
the error status with a program at the next power-on of the PLC.
For this reason, be sure to create the following program:
• For FX3G, FX3U, FX3UC Series PLC
M8000
H
FX3U-4AD-PT

MOV D8288 K4M0

Normally
ON
-ADP

M8002
RST M6 Error status of 3rd*1 analog special adapter
b6 = OFF (hardware error)
Initial pulse
I
FX3U-4AD-PTW

RST M7 Error status of 3rd*1 analog special adapter

b7 = OFF (communication data error)
-ADP

MOV K4M0 D8288

J
FX3U-4AD-PNK

*1. "1st" for the FX3G PLC.

-ADP

H-21
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-PT-ADP (4-channel Platinum Resistance Thermometer Data Input) 4.6 Error Status

• For FX3U, FX3UC Series PLC

M8002
RST D8268.6 Error status of 1st analog special adapter
b6 = OFF (hardware error)
Initial pulse

RST D8268.7 Error status of 1st analog special adapter

b7 = OFF (communication data error)

2. Program Example 1 (For FX3G, FX3U, FX3UC Series PLC)

M8000
MOV D8288 K4M0

M0
Y000 The temperature measurement data
of channel 1 is outside the specified
range, or disconnection is detected.
M1
Y001 The temperature measurement data
of channel 2 is outside the specified
range, or disconnection is detected.
M2
Y002 The temperature measurement data
of channel 3 is outside the specified
range, or disconnection is detected.
M3
Y003 The temperature measurement data
of channel 4 is outside the specified
range, or disconnection is detected.
M4
Y004 EEPROM error in 3rd*1 adapter

M5
Y005 Averaging time setting error in 3rd*1
adapter

M6
Y006 PT-ADP hardware error in 3rd*1
adapter

M7
Y007 PT-ADP communication data error in
3rd*1 adapter

*1. "1st" for the FX3G PLC.

H-22
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-PT-ADP (4-channel Platinum Resistance Thermometer Data Input) 4.6 Error Status

A
3. Program Example 2 (For FX3U, FX3UC Series PLC)

Common Items
D8268.0
Y000 The temperature measurement data
of channel 1 is outside the specified
D8268.1
range, or disconnection is detected. B
Y001 The temperature measurement data

FX3UC-4AD
FX3U-4AD
of channel 2 is outside the specified
range, or disconnection is detected.
D8268.2
Y002 The temperature measurement data
of channel 3 is outside the specified
D8268.3
range, or disconnection is detected. C
Y003 The temperature measurement data

FX3U-4AD-ADP
of channel 4 is outside the specified
range, or disconnection is detected.
D8268.4
Y004 EEPROM error in 1st adapter

D8268.5
D
Averaging time setting error in 1st

FX3G-2AD-BD
Y005
adapter

D8268.6
Y006 PT-ADP hardware error in 1st
adapter

D8268.7
E
PT-ADP communication data error in

FX3U-4DA
Y007
1st adapter

FX3U-4DA-ADP
G

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

H-23
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-PT-ADP (4-channel Platinum Resistance Thermometer Data Input) 4.7 Model Code

4.7 Model Code

Initial value: K20
Numeric data type: Decimal (K)
When the PT-ADP is connected, model code "20" will be stored in the corresponding special data register.
The following table shows the special data registers that store the model code:
• FX3U, FX3UC Series PLC

Special data register

Description
1st 2nd 3rd 4th
D8269 D8279 D8289 D8299 Model code

• FX3G Series PLC

Special data register

Description
1st 2nd
D8289 D8299 Model code

Use the special data registers above to check whether PT-ADP is connected or not.

1. Program Example (For FX3U, FX3UC Series PLC)

FNC224 D8269 K20 Y010 Checks the model code of the 1st
LD = analog special adapter.

H-24
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-PT-ADP (4-channel Platinum Resistance Thermometer Data Input) 4.8 Basic Program Example

A
4.8 Basic Program Example

Common Items
Create the following basic program example to read out the temperature measurement data.
• For FX3G, FX3U, FX3UC Series PLC
The following program will store the temperature measurement data (°C) from channels 1 and 2 of the 3rd*1
adapter to D100 and D101, respectively. The averaging time is set to "1" (immediate data) for channel 1, and
B

FX3UC-4AD
FX3U-4AD
"5" for channel 2.

M8000
MOV D8288 K4M0

M8002
RST M6
Error status of 3rd*1 analog special
adapter C
Initial b6 = OFF (hardware error)

FX3U-4AD-ADP
pulse Error status of 3rd*1 analog special
RST M7
adapter
b7 = OFF (communication data error)
MOV K4M0 D8288
M8001
Sets the temperature unit to centigrade
D
M8280

FX3G-2AD-BD
(°C).
M8002
FNC 12 Sets the averaging time to "1" for
K1 D8284 channel-1 data.
MOV

FNC 12 Sets the averaging time to "5" for

MOV
K5 D8285 channel-2 data. E
M8000

FX3U-4DA
FNC 12 D8280 D100 Stores the current value of the channel-1
MOV temperature measurement data in the D100.

FNC 12 D8281 D101 Stores the average value of the channel-2

MOV temperature measurement data in the D101.

Even if the temperature measurement data is not stored in D100 or D101, data register D8280 or D8281 can F
be directly used in the arithmetic operation instruction or a PID instruction.

FX3U-4DA-ADP
*1. "1st" for the FX3G PLC.
• For FX3U, FX3UC Series PLC
The following program will store the temperature measurement data (°C) from channels 1 and 2 of the 1st
adapter to D100 and D101, respectively. The averaging time is set to "1" (immediate data) for channel 1, and
"5" for channel 2. G

FX3G-1DA-BD
M8002 Error status of 1st analog special
RST D8268.6 adapter
b6 = OFF (hardware error)

RST D8268.7 Error status of 1st analog special

adapter
M8001
b7 = OFF (communication data error) H
Sets the temperature unit to centigrade
FX3U-4AD-PT

M8260 (°C).
M8002
FNC 12 Sets the averaging time to "1" for
K1 D8264
-ADP

MOV channel-1 data.

FNC 12
MOV
K5 D8265 Sets the averaging time to "5" for
channel-2 data. I
FX3U-4AD-PTW

M8000
FNC 12 D8260 D100 Stores the current value of the channel-1
MOV temperature measurement data in the D100.
-ADP

FNC 12 D8261 D101 Stores the average value of the channel-2

MOV temperature measurement data in the D101.

Even if the temperature measurement data is not stored in D100 or D101, data register D8260 or D8261 can
J
FX3U-4AD-PNK

be directly used in the arithmetic operation instruction or a PID instruction.

-ADP

H-25
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Troubleshooting
FX3U-4AD-PT-ADP (4-channel Platinum Resistance Thermometer Data Input) 5.1 PLC Version Number Check

5. Troubleshooting
This chapter describes the troubleshooting methods and error status.
If the temperature measurement data is not input, or if the proper digital value is not input, check the following
items:
• Version number of the PLC
• Wiring
• Special devices
• Programs
• Error status

5.1 PLC Version Number Check

• Any versions (from Ver.2.20 (initial version) to the latest version) of the FX3U Series are compatible.
• Check the version number of the FX3UC Series. The version number should be 1.30 or later.
• Any versions (from Ver.1.00 (initial version) to the latest version) of the FX3G Series are compatible.
→ For a detailed description of the version number check method, refer to Section 1.3.

5.2 Wiring Check

Check the following items for wiring:

1. Power
The PT-ADP needs driving power. Verify that the power supply line is properly connected. Also check that the
POWER indicator lamp of the PT-ADP is on.

2. Platinum resistance thermometer sensor cable

Separate the cable of the platinum resistance thermometer from other power cables or inductive cables.
→ For a detailed description of wiring, refer to Chapter 3.

5.3 Special Device Check

Check whether the special devices for the PT-ADP are correctly used:

1. Temperature measurement
Verify that the special device for the selected channel is correctly selected. This special device should be
selected depending on the connecting position and the channel.

2. Averaging time
Check that the set averaging time is within the specified range. The averaging time should be set in the range
from 1 to 4095. If the set averaging time is outside the specified range, an error occurs.

3. Error status
Check that no error is detected in the PT-ADP.
If an error is detected, check the details of the error, and then check the wiring and programs.
→ For a detailed description of special devices, refer to Chapter 4.

H-26
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Troubleshooting
FX3U-4AD-PT-ADP (4-channel Platinum Resistance Thermometer Data Input) 5.4 Program Check

A
5.4 Program Check

Common Items
Check the following items for the program:

1. Cancellation of error status at power-on

When the power is turned off and then on again, the error status should be cleared (b6 and b7 should turn off) B
using the program.

FX3UC-4AD
FX3U-4AD
2. Check of storage devices
Verify that different values are not being stored in the same device by the other parts of the programs.

5.5 Error Status Check C

FX3U-4AD-ADP
If an error occurs in the PT-ADP, the corresponding bit will turn on.

Bit Description Bit Description

The temperature measurement data of
b0 channel 1 is outside the specified
range, or disconnection is detected.
b5 Averaging time setting error D

FX3G-2AD-BD
The temperature measurement data of
b1 channel 2 is outside the specified b6 PT-ADP hardware error
range, or disconnection is detected.
The temperature measurement data of
b2 channel 3 is outside the specified
range, or disconnection is detected.
b7 PT-ADP communication data error
E

FX3U-4DA
The temperature measurement data of
b3 channel 4 is outside the specified b8 to 15 Unused
range, or disconnection is detected.
b4 EEPROM error - -
To solve a problem, refer to the troubleshooting method described below: F

FX3U-4DA-ADP
1. Temperature measurement out of specified range or disconnection of line (b0 to b3)
1) Description of error
The input temperature measurement value is outside the specified range.
The temperature measurement value is not in the range between -55°C to 255°C.
Or the line between PT-ADP and the platinum resistance thermometer sensor is disconnected. G
2) Remedy

FX3G-1DA-BD
Check that the input temperature measurement value is within the specified range. Also check the wiring
condition.

2. EEPROM error (b4)

1) Description of error
The adjustment data set in the EEPROM before delivery from our factory cannot be read out properly or
H
FX3U-4AD-PT

is destroyed.
2) Remedy
Please contact the nearest Mitsubishi Electric distributor office.
-ADP

3. Averaging time setting error (b5)

1) Description of error
I
FX3U-4AD-PTW

The averaging time set for one of the channels (channels 1 to 4) is outside the specified
range: 1 to 4095.
2) Remedy
-ADP

Check that the averaging time is correctly set for each channel.
J
FX3U-4AD-PNK
-ADP

H-27
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Troubleshooting
FX3U-4AD-PT-ADP (4-channel Platinum Resistance Thermometer Data Input) 5.5 Error Status Check

4. PT-ADP hardware error (b6)

1) Description of error
The PT-ADP does not operate properly.
2) Remedy
Check that the 24V DC power is properly supplied to the PT-ADP. Also check that the PT-ADP is
correctly connected to the PLC.
If the problem cannot be solved even after the above check, please contact the nearest Mitsubishi
Electric distributor office.

5. PT-ADP communication data error (b7)

1) Description of error
A communication error is detected between the PT-ADP and the PLC.
2) Remedy
Check that the PT-ADP is correctly connected to the PLC.
If the problem cannot be solved even after the above check, please contact the nearest Mitsubishi
Electric distributor office.

H-28
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition
FX3U-4AD-PTW-ADP (4-channel Platinum Resistance Thermometer Data Input)

Common Items
B

FX3UC-4AD
FX3U-4AD
FX3G/FX3U/FX3UC Series Programmable
Controllers C

FX3U-4AD-ADP
User's Manual [Analog Control Edition]
FX3U-4AD-PTW-ADP
D
(4-channel Platinum Resistance Thermometer Data Input)

FX3G-2AD-BD
E

FX3U-4DA
F

FX3U-4DA-ADP
G

FX3G-1DA-BD

H
FX3U-4AD-PT

Foreword
-ADP

This manual describes the specifications, wiring, and operation methods for the FX3U-4AD-PTW-ADP special
adapter (4-channel platinum resistance thermometer input) and should be read and understood before I
attempting to install or use the unit.
FX3U-4AD-PTW

Store this manual in a safe place so that you can take it out and read it whenever necessary. Always forward
it to the end user.
-ADP

This manual confers no industrial property rights or any rights of any other kind, nor does it confer any patent
licenses. Mitsubishi Electric Corporation cannot be held responsible for any problems involving industrial property
rights which may occur as a result of using the contents noted in this manual.
J
FX3U-4AD-PNK

© 2005 MITSUBISHI ELECTRIC CORPORATION

-ADP

I-1
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition
FX3U-4AD-PTW-ADP (4-channel Platinum Resistance Thermometer Data Input)

I-2
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 1 Outline
FX3U-4AD-PTW-ADP (4-channel Platinum Resistance Thermometer Data Input) 1.1 Outline of Functions

Common Items
1. Outline
This chapter describes the outline of FX3U-4AD-PTW-ADP (referred to as PTW-ADP). B

FX3UC-4AD
FX3U-4AD
1.1 Outline of Functions
The FX3U-4AD-PTW-ADP is an analog special adapter. Connect the FX3U-4AD-PTW-ADP to the FX3U/
FX3UC/FX3G Series PLC to read the temperature data from the 4-channel platinum resistance thermometers.
C
1) Up to 4 PTW-ADP units can be connected to the FX3U/FX3UC Series PLC.

FX3U-4AD-ADP
Up to 2*1 PTW-ADP units can be connected to the FX3G Series PLC.
(including other analog special adapters)
2) After connection of the platinum resistance thermometer (Pt100), measurement of temperature will be
possible.
3) The temperature measurement data will be automatically written to the special data registers of the FX3U/ D
FX3UC/FX3G Series PLC.

FX3G-2AD-BD
System Point and section to be
referred to

FX3U, FX3UC Series PLC : 4 maximum

FX3G Series PLC : 2*1 maximum Number of connectable
(including other analog special adapters)
FX3U/FX3UC /FX3G Series PLC
……
units E

FX3U-4DA
To check the connectable
…… PLC model number, refer

+ + to Section 1.3.

FX3U-4DA-ADP
Expansion
4th 3rd 2nd 1st
adapter adapter adapter adapter board*2
For a detailed
…… description of wiring,
Analog data refer to Chapter 3.

Platinum resistance thermometer G

sensor(Pt100)

FX3G-1DA-BD
For FX3U, FX3UC
Series PLC For a detailed description
…… of special devices, refer to
H
Description Special devices Chapter 4.
Measurement 1st adapter M/D8260 to M/D8269
temperature Transfer direction
For a detailed description
FX3U-4AD-PT

2nd adapter M/D8270 to M/D8279 of a basic program, refer to

Setting of temperature Section 4.8.
unit 3rd adapter M/D8280 to M/D8289
Setting of averaging time
-ADP

4th adapter M/D8290 to M/D8299

Refer to the system configuration shown in the User's Manual - Hardware Edition to check the number of connectable units
and to configure the entire system. I
FX3U-4AD-PTW

*1. Only 1 analog special adapter can be connected to the 14-point and 24-point type main unit.
*2. The expansion board is not required when connecting with the FX3UC (D, DSS) PLC.
For the FX3G Series PLC a connector conversion adapter is used.
-ADP

J
FX3U-4AD-PNK
-ADP

I-3
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 1 Outline
FX3U-4AD-PTW-ADP (4-channel Platinum Resistance Thermometer Data Input) 1.2 Setup Procedure Before Starting Operation

1.2 Setup Procedure Before Starting Operation

Before starting analog input using the PTW-ADP, follow the procedure below to set up the system:

FX3U-4AD-PTW-ADP

Refer to Chapter 1.

Outline Outline of system:

•Compatible PLC version number
•Compatible programming tool version
Refer to Chapter 2. number
Specifications check Specifications:
•Operation environment
•Performance specifications
Refer to the common
•Input characteristics
pages.

System configuration and selection System configuration:

(Refer to the common pages for analog
control.)
Refer to Chapter 3.
•Selection of units
Wiring Wiring:
•Power supply line
•Platinum resistance thermometer
Refer to Chapter 4. sensor line
Programming Programming:
•Details of special devices
•Examples of basic programs

If the error status data or the input digital value is

abnormal, refer to Chapter 5 "Troubleshooting."

I-4
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 1 Outline
FX3U-4AD-PTW-ADP (4-channel Platinum Resistance Thermometer Data Input) 1.3 Connectable PLC and Its Version Number

A
1.3 Connectable PLC and Its Version Number

Common Items
PTW-ADP is compatible with the following PLC.

Compatible PLC Version number Date of production

FX3U Series PLC Ver. 2.20 or later After May 2005 (initial production) B

FX3UC-4AD
FX3U-4AD
FX3UC Series PLC Ver. 1.30 or later After August 2004
FX3G Series PLC Ver. 1.00 or later After June 2008 (initial production)

1. Version check
Special data register D8001 contains information for determining the PLC version.
C

FX3U-4AD-ADP
D8001 2 4 1 0 0
PLC type and
version number Version data (Example: Ver. 1.00)

(
PLC type Example: 24 = FX3U and FX3UC series
) D
26 = FX3G series

FX3G-2AD-BD
2. How to look at the manufacturer's serial number
The year and month of production of the product can be seen from the manufacturer's serial number
"SERIAL" indicated on the label adhered to the right side of the product.

Example:
E

FX3U-4DA
FX3U-48MR/ES(production number : 570001)

Right side MITSUBISHI PROGRAMMABLE

CONTROLLER

MODEL FX3U-48MR/ES
100-240VAC 50/60Hz 40W
OUT:30VDC/240VAC 2A(COSφ=1) F
SERIAL 570001

FX3U-4DA-ADP
80M1 IND. CONT. EQ.
MITSUBISHI ELECTRIC CORPORATION
MADE IN JAPAN

5 7 0 0 0 1
G

FX3G-1DA-BD
Control number
Month (Example: 7 = July), 1 to 9 = January to September,
X = October, Y = November, Z = December
Year (Example: 5 = 2005), last digit of dominical year

1.4 Compatible Programming Tool Version Number H

FX3U-4AD-PT

Use the programming tool with the following version number to create programs for PTW-ADP of the FX3U/
FX3UC/FX3G Series PLC:
-ADP

Software Version number Remarks

GX Developer Ver. SW8 P or later
When selecting a model, select FX3U(C)*1.
I
• SW D5C-GPPW-J (Ver. 8.13P)
FX3U-4AD-PTW

• SW D5C-GPPW-E (Ver. 8.72A or later) When selecting a model, select FX3G.

-ADP

If a programming tool with the wrong version number is used, programming will not be possible.
*1. For Ver. 8.13P to 8.24A of GX Developer, select FX3UC for the PLC type.
J
FX3U-4AD-PNK
-ADP

I-5
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 Specifications
FX3U-4AD-PTW-ADP (4-channel Platinum Resistance Thermometer Data Input) 2.1 Generic Specifications

2. Specifications
This chapter describes the general, power supply, and performance specifications for the PTW-ADP.

2.1 Generic Specifications

Item Specifications
Ambient 0 to 55°C (32 to 131°F) when operating
temperature -25 to 75°C (-13 to 167°F) when stored
Relative
5 to 95%RH (no condensation) when operating
humidity
Frequency Acceleration Half amplitude
(Hz) (m/s2) (mm)
Tested 10 times in each
Vibration 10 - 57 - 0.035 direction (X-, Y-, and Z-
DIN Rail Mounting
resistance 57 - 150 4.9 - axis directions) (Total:
80 min, each)
10 to 57 − 0.075
Direct Mounting*1
57 to 150 9.8 −
Shock
147 m/s2 Acceleration, Action time: 11ms, 3 times by half-sine pulse in each direction X, Y, and Z
resistance
Noise Using noise simulator of:
resistance Noise voltage: 1,000Vp-p / Noise width: 1µs / Rise: 1ns / Cycle: 30 to 100Hz
Dielectric
withstand 500 V AC, for 1 min
voltage Between all terminals and ground terminal
Insulation 5MΩ or more using 500V DC
resistance insulation resistance meter
Class D grounding (grounding resistance: 100 Ω or less)
Grounding
<Common grounding with a heavy electrical system is not allowed.>*2
Working
Free from corrosive or flammable gas and excessive conductive dusts
environment
Working
< 2000m*3
altitude

*1. If PTW-ADP is connected to the FX3UC Series PLC, direct installation is not possible.

*2.
PLC Other PLC Other PLC Other
equipment equipment equipment

Independent grounding Shared grounding Common grounding

Best condition Good condition Not allowed

→ For a detailed description of the grounding, refer to Section 3.6.

*3. If the pressure is higher than the atmospheric pressure, do not use the PTW-ADP.
The PTW-ADP may malfunction.

I-6
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 Specifications
FX3U-4AD-PTW-ADP (4-channel Platinum Resistance Thermometer Data Input) 2.2 Power Supply Specifications

A
2.2 Power Supply Specifications

Common Items
Items Specification
A/D conversion circuit 24V DC +20% -15%, 50mA B
driving power (It is necessary to connect a 24V DC power supply to the terminal block.)

FX3UC-4AD
FX3U-4AD
5V DC, 15mA
Interface driving power (Since the internal power is supplied from the FX Series main unit, it is not
necessary to supply the power.)

2.3 Performance Specifications

C

FX3U-4AD-ADP
Specifications
Items
Centigrade (°C) Fahrenheit (°F)

Input signal
3-wire platinum resistance thermometer sensor
Pt100 JIS C 1604-1997
D

FX3G-2AD-BD
Rated temperature
-100°C to +600°C -148°F to +1112°F
range
Digital output -1000 to +6000 -1480 to +11120
Resolution 0.2°C to 0.3°C 0.4°F to 0.5°F

Total accuracy
• ±0.5% for full scale (when ambient temperature is 25°C±5°C) E
• ±1.0% for full scale (when ambient temperature is in the range from 0 to 55°C)

FX3U-4DA
• FX3U/FX3UC Series PLC : 200µs (The data will be updated at every scan time.)
A/D conversion
• FX3G Series PLC : 250µs (The data will be updated at every scan time.)
time
→For a detailed description of data update, refer to Section 2.4.

+6150 +11390
F

FX3U-4DA-ADP
+6000 +11120

+1139°F
+615°C

Input
characteristics -100°C 0 -148°F 0
G
-115°C

+600°C +1112°F
-175°F

FX3G-1DA-BD
-1000 -1480
-1150 -1750

• The photocoupler is used to insulate the analog input area from the PLC.
• The DC/DC converter is used to insulate the power supply line from the analog input
Insulation method
area. H
• Channels are not insulated from each other.
FX3U-4AD-PT

Number of I/O 0 points

points occupied (This number is not related to the maximum number of input/output points of the PLC.)
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

I-7
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 Specifications
FX3U-4AD-PTW-ADP (4-channel Platinum Resistance Thermometer Data Input) 2.4 A/D Conversion Time

2.4 A/D Conversion Time

This section describes the A/D conversion time.

2.4.1 When connected to a FX3U, FX3UC PLC

1. A/D conversion and special data register update timing

A/D conversion is performed at every scan time of the PLC.
During execution of END instruction, the PLC performs A/D conversion, reads out the A/D converted data,
and then writes the data in the special data registers.
FX3U-4AD-PTW-ADP FX3U-4AD-PTW-ADP
n'th 1st FX3U/FX3UC Series PLC

Sequence
program
A/D conversion start
A/D command
conversion
Digital value writing
200µs/4ch
A/D conversion start END instruction
A/D command
conversion
Digital value writing
200µs/4ch

2. A/D conversion during PLC stop

Even if the PLC is stopped, A/D conversion will be performed and the special data registers will be updated.

3. If two or more analog special adapters are connected

During execution of the END instruction, data will be read out from all the connected adapters (in the order of
1st adapter → 2nd adapter … 4th adapter).

4. A/D conversion speed (data update time)

During execution of the END instruction, the A/D converted data of all 4 channels will be read out in 200µs,
and the data read out will be written to the special data registers.
END instruction execution time will be "200µs × number of connected adapters."

I-8
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 Specifications
FX3U-4AD-PTW-ADP (4-channel Platinum Resistance Thermometer Data Input) 2.5 Temperature Measurement

A
2.4.2 When connected to a FX3G PLCs

Common Items
1. A/D conversion and special data register update timing
A/D conversion is performed at every scan time of the PLC.
During execution of END instruction, the PLC performs A/D conversion, reads out the A/D converted data,
and then writes the data in the special data registers. B

FX3UC-4AD
FX3U-4AD
FX3U-4AD-PTW-ADP FX3U-4AD-PTW-ADP
2nd 1st FX3G Series PLC

Sequence

A/D conversion start

program C

FX3U-4AD-ADP
A/D command
conversion
Digital value writing
250µs/4ch
A/D conversion start END instruction
A/D
conversion
command
D

FX3G-2AD-BD
Digital value writing
250µs/4ch

2. A/D conversion during PLC stop

Even if the PLC is stopped, A/D conversion will be performed and the special data registers will be updated. E

FX3U-4DA
3. If two analog special adapters are connected
During execution of the END instruction, data will be read out from all the connected adapters (in the order of
1st adapter → 2nd adapter).

4. A/D conversion speed (data update time)

During execution of the END instruction, the A/D converted data of all 4 channels will be read out in 250µs, F

FX3U-4DA-ADP
and the data read out will be written to the special data registers.
END instruction execution time will be "250µs × number of connected adapters."

2.5 Temperature Measurement

To stabilize the temperature measurement, warm-up the system for 30 minutes or more after power-on.
G

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

I-9
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3U-4AD-PTW-ADP (4-channel Platinum Resistance Thermometer Data Input)

3. Wiring
This chapter describes the PTW-ADP wiring.
Observe the following caution to wire the PTW-ADP.

WIRING PRECAUTIONS

• Make sure to cut off all phases of the power supply externally before attempting wiring work.
Failure to do so may cause electric shock or damages to the product.

WIRING PRECAUTIONS

• Connect the DC power supply wiring to the dedicated terminals described in this manual.
If an AC power supply is connected to a DC input/output terminal or DC power supply terminal, the PLC will be
burnt out.
• Do not wire vacant terminals externally.
Doing so may damage the product.
• Perform class D grounding (grounding resistance: 100Ω or less) to the grounding terminal on the main unit.
Do not use common grounding with heavy electrical systems.
• When drilling screw holes or wiring, make sure cutting or wire debris does not enter the ventilation slits.
Failure to do so may cause fire, equipment failures or malfunctions.
• Make sure to observe the following precautions in order to prevent malfunctions under the influence of noise:
- Do not bundle the power line or twisted shielded cable together with or lay it close to the main circuit, high-
voltage line, or load line.
Otherwise, noise disturbance and/or surge induction are likely to take place. As a guideline, lay the control line
at least 100mm (3.94") or more away from the main circuit, high-voltage line, or load line.
- Ground the shield of the analog input/output cable at one point on the signal receiving side.
However, do not use common grounding with heavy electrical systems.
• Make sure to properly wire to the European terminal board in accordance with the following precautions.
Failure to do so may cause electric shock, a short-circuit, wire breakage, or damage to the product.
- The disposal size of the cable end should be 9 mm (0.35").
- Tightening torque should be between 0.22 to 0.25 N•m.
- Twist the end of strand wire and make sure there are no loose wires.
- Do not solder-plate the electric wire ends.
- Do not connect more than the specified number of wires or electric wires of unspecified size.
- Affix the electric wires so that neither the terminal block nor the connected parts are directly stressed.

I-10
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3U-4AD-PTW-ADP (4-channel Platinum Resistance Thermometer Data Input) 3.1 Terminal Layout

A
3.1 Terminal Layout

Common Items
The terminals of the PTW-ADP are arranged as follows:

FX3UC-4AD
FX3U-4AD
FX3U-4AD-PTW
-ADP
POWER

Signal Application C
24+
24+

FX3U-4AD-ADP
External power
24-
24-

Ground terminal
L1+
L1+

Channel-1 platinum
resistance thermometer
L1-

L1-
sensor input
I1-

I1-
D
L2+

L2+ Channel-2 platinum

L2-

resistance thermometer

FX3G-2AD-BD
L2-
sensor input
I2-

I2-
L3+

L3+ Channel-3 platinum

L3- resistance thermometer
L3-

I3- sensor input

I3-

L4+ Channel-4 platinum E

L4+

L4- resistance thermometer

L4-

FX3U-4DA
sensor input
I4-
I4-

FX3U-4DA-ADP
G

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

I-11
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3U-4AD-PTW-ADP (4-channel Platinum Resistance Thermometer Data Input) 3.2 Applicable Cable and Terminal Tightening Torque

3.2 Applicable Cable and Terminal Tightening Torque

Use the following cables to connect with the counterpart equipment. Terminate the cable end as shown below.
To connect the platinum resistance thermometer sensor, use the cable supplied with the Pt100 platinum
resistance thermometer or a twisted pair shielded cable.

1. Cables
Applicable cable and tightening torque
Wire size Tightening
Termination
(stranded/single-wire) torque
0.3mm2 to 0.5mm2 • To connect a stranded cable, peel the cover off the cable
Single-wire and then twist the core before connection.
(AWG22 to 20)
• To connect a single-wire cable, just strip the cover off the
2-wire 0.3mm2 (AWG22) cable before connection.
0.22 N•m to • Rod terminal with insulation sleeve
Rod 0.3mm2 to 0.5mm2 0.25 N•m (recommended terminal)
terminal (AWG22 to 20) AI 0.5-8WH : Manufactured by Phoenix Contact
with (Refer to the rod terminal
• Caulking tool
insulation external view shown in
CRIMPFOX ZA 3 : Manufactured by Phoenix Contact
sleeve the following figure.)
(or CRIMPFOX UD 6 : Manufactured by Phoenix Contact)

2. Termination of cable ends

To terminate the cable, treat the stranded/single wire directly or use a rod terminal with insulation sleeve.
• To directly terminate the end of a stranded/single-wire cable: Termination of cable end
- Twist the end of the stranded cable so that the "barbed wires"
cannot protrude.
- Do not solder-plate the end of the cable.
9mm
(0.35")
• To terminate cable end using a rod terminal with insulation sleeve:
If the cable sheath is too thick, it may be difficult to insert the cable into Insulation sleeve Contact area
(Crimp area)
the insulation sleeve. For this reason, select an appropriate cable while
referring to the external view.
8mm (0.31")
Manufacturer Model Caulking tool 2.6mm 14mm
CRIMPFOX ZA 3 (0.1")
Phoenix Contact AI 0.5-8WH (0.55")
(or CRIMPFOX UD 6)

3. Tool
• To tighten terminals, use a small-sized screwdriver whose head is straight and is not widened as shown in
the figure to the right.

Note:
If the diameter of screwdriver grip is too small, tightening torque will not
The head
be able to be achieved. Use the following recommended screwdriver or should be
an appropriate replacement (grip diameter: approximately 25mm). straight.
Manufacturer Type
Phoenix Contact SZS 0.4 × 2.5 0.4mm 2.5mm
(0.01") (0.09")

I-12
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3U-4AD-PTW-ADP (4-channel Platinum Resistance Thermometer Data Input) 3.3 Power Supply Line

A
3.3 Power Supply Line

Common Items
Connect the 24V DC power supply line of the PTW-ADP to the 24+ and 24- terminals of the terminal block.

3.3.1 To connect to FX3G, FX3U Series PLC

B

FX3UC-4AD
FX3U-4AD
1. To use an external power 2. To use the 24V DC power of the PLC

PTW-ADP FX3G/FX3U PTW-ADP FX3G/FX3U

Series PLC Series PLC
+5V (Main unit) +5V (Main unit)

FX3U-4AD-ADP
24- 24+ 24- 24+ 0V 24V D

FX3G-2AD-BD
Terminal Terminal
block block

Class-D Class-D
grounding
24V DC grounding
E
Caution regarding connection of the power supply line:

FX3U-4DA
• Ground the " " terminal to a class-D grounding power supply line (100Ω or less) together with the
ground terminal of the PLC main unit.
• For the timing of power-on/off when using an external power supply, see the following manual of the PLC
to be connected.
→ Refer to the FX3G Series User's Manual - Hardware Edition. F
→ Refer to the FX3U Series User's Manual - Hardware Edition.

FX3U-4DA-ADP
3.3.2 To Connect To The FX3UC Series PLC

PTW-ADP FX3UC Series PLC

(Main unit)
FX2NC
Series PLC
G

FX3G-1DA-BD
+5V (Input extension
block)

Power
H
Power crossover
FX3U-4AD-PT

Power
connector connector connector

24- 24+ 24- 24+ 24- 24+ 24- 24+

-ADP

Terminal Black Red Green Black Red

block
I
FX3U-4AD-PTW

Class-D
24V DC grounding
-ADP

Caution regarding connection of the power supply line:

J
• For the 24V DC power supply line, be sure to use the same power as the FX3UC Series PLC.
FX3U-4AD-PNK

• Ground the " " terminal to a class-D grounding power supply line (100Ω or less) together with the
grounding terminal of the PLC main unit.
-ADP

I-13
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3U-4AD-PTW-ADP (4-channel Platinum Resistance Thermometer Data Input)
3.4 Selection of the Platinum Resistance Thermometer Sensor

3.4 Selection of the Platinum Resistance Thermometer Sensor

Select the Pt100 3-wire platinum resistance thermometer sensor.
This thermometer will not be affected by voltage drop in the wiring area, and will ensure accurate
measurement.

3.5 Wiring of the Platinum Resistance Thermometer Sensor

PTW-ADP
+5V

Twisted shielded Terminal 4.7kΩ 4.7kΩ

Pt100 cable*1 block
100kΩ ch
L +
L -
I - 100kΩ

Shield +5V

Twisted shielded 4.7kΩ 4.7kΩ

Pt100 cable*1
100kΩ ch
L +
L -
100kΩ
I -

+5V

24+
24V DC
24-

Class-D grounding
L +, L -, I -, ch : represents the channel number.

*1. Separate the cable of the platinum resistance thermometer sensor from the other power cables or
areas easily affected by inductive noise (of the commercial power, etc.).

3.6 Grounding
Grounding should be performed as stated below.
• The grounding resistance should be 100Ω or less.
• Independent grounding should be performed for best results.
When independent grounding is not performed, perform "shared grounding" as shown in the following
figure.
→ For details, refer to the User’s Manual - Hardware Edition of the PLC Series.

PLC Other PLC Other PLC Other

equipment equipment equipment

Independent grounding Shared grounding Common grounding

Best condition Good condition Not allowed

• The grounding wire size should be AWG22 to 20 (0.3 to 0.5 mm2).

• The grounding point should be close to the PLC, and all grounding wires should be as short as possible.

I-14
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-PTW-ADP (4-channel Platinum Resistance Thermometer Data Input) 4.1 Loading of A/D Conversion Data

Common Items
4. Programming
This chapter describes how to create programs that can read analog data using the PTW-ADP. B

FX3UC-4AD
FX3U-4AD
4.1 Loading of A/D Conversion Data
1) The input analog data will be converted into digital data and then stored in the special devices of the
FX3U/FX3UC/FX3G Series PLC.
C
2) If data is stored in the special devices, the averaging time can be set, and the input mode can be

FX3U-4AD-ADP
specified.
3) Special auxiliary relays (10 points) and special data registers (10 points) are assigned automatically
starting from the adapter nearest to the main unit.
→ For a detailed description of special device assignment, refer to Section 4.2.
• FX3U, FX3UC Series PLC D

FX3G-2AD-BD
Communi High-speed
-cation input/output
FX3U-4AD FX3U-4AD FX3U-4AD special FX3U-4AD special
-PTW-ADP -PTW-ADP -PTW-ADP adapter -PTW-ADP adapter FX3U/FX3UC Series PLC

4th 3rd 2nd 1st Special devices

Special auxiliary relays:
E

FX3U-4DA
A/D M8260 to M8269
Special data registers:
D8260 to D8269

Special auxiliary relays:

M8270 to M8279
A/D Special data registers:
D8270 to D8279
Sequence
F
program

FX3U-4DA-ADP
Special auxiliary relays:
A/D M8280 to M8289
Special data registers:
D8280 to D8289

A/D
Special auxiliary relays:
M8290 to M8299 G
Special data registers:

FX3G-1DA-BD
D8290 to D8299

The analog special adapter nearest to the main unit is counted as the 1st analog special adapter, and the
next adapter as the 2nd analog special adapter, and so on. However, in this case, do not include the high-
speed input/output special adapter and the communication special adapter. H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

I-15
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-PTW-ADP (4-channel Platinum Resistance Thermometer Data Input) 4.1 Loading of A/D Conversion Data

• FX3G Series PLC

Communi-
cation Connector
FX3U-4AD FX3U-4AD
special conversion
-PTW-ADP -PTW-ADP
adapter adapter FX3G Series PLC

2nd*1 1st
Special devices
Special auxiliary relays:
M8280 to M8289
A/D Special data registers:
D8280 to D8289 Sequence
Program
Special auxiliary relays:
M8290 to M8299
A/D Special data registers:
D8290 to D8299

The analog special adapter nearest to the main unit is counted as the 1st analog special adapter, and the
next adapter as the 2nd analog special adapter. However, in this case, do not include the connector
conversion adapter and the communication special adapter.
*1. The second special adapter is not available in the 14-point and 24-point main unit.

I-16
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-PTW-ADP (4-channel Platinum Resistance Thermometer Data Input) 4.2 List of Special Devices

A
4.2 List of Special Devices

Common Items
If the PTW-ADP is connected, special devices will be assigned automatically as shown in the following table:
• FX3U, FX3UC Series PLC
R: Read / W: Write
Special Device number
B
Description Attribute Reference

FX3UC-4AD
FX3U-4AD
device 1st 2nd 3rd 4th
Section
Special M8260 M8270 M8280 M8290 Selects the temperature unit. R/W
4.3
auxiliary
relay M8261 to M8271 to M8281 to M8291 to
Unused (Do not use.) - -
M8269 M8279 M8289 M8299
C
Channel-1 temperature

FX3U-4AD-ADP
D8260 D8270 D8280 D8290 R
measurement data
Channel-2 temperature
D8261 D8271 D8281 D8291 R
measurement data Section
Channel-3 temperature 4.4
D8262 D8272 D8282 D8292 R
measurement data
D
Channel-4 temperature
D8263 D8273 D8283 D8293 R

FX3G-2AD-BD
measurement data
Averaging time for channel 1
Special D8264 D8274 D8284 D8294 R/W
(Setting range: 1 to 4095)
data
register Averaging time for channel 2
D8265 D8275 D8285 D8295 R/W
(Setting range: 1 to 4095) Section
4.5
E
Averaging time for channel 3
D8266 D8276 D8286 D8296 R/W

FX3U-4DA
(Setting range: 1 to 4095)
Averaging time for channel 4
D8267 D8277 D8287 D8297 R/W
(Setting range: 1 to 4095)
Section
D8268 D8278 D8288 D8298 Error status R/W
4.6
Section
F
D8269 D8279 D8289 D8299 Model code = 21 R

FX3U-4DA-ADP
4.7

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

I-17
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-PTW-ADP (4-channel Platinum Resistance Thermometer Data Input) 4.3 Selection of Temperature Unit

• FX3G Series PLC

R: Read / W: Write
Device number
Special device Description Attribute Reference
1st 2nd
M8280 M8290 Selects the temperature unit. R/W Section 4.3
Special auxiliary relay M8281 to M8291 to
Unused (Do not use.) - -
M8289 M8299
Channel-1 temperature
D8280 D8290 R
measurement data
Channel-2 temperature
D8281 D8291 R
measurement data
Section 4.4
Channel-3 temperature
D8282 D8292 R
measurement data
Channel-4 temperature
D8283 D8293 R
measurement data
Averaging time for channel 1
Special data register D8284 D8294 R/W
(Setting range: 1 to 4095)
Averaging time for channel 2
D8285 D8295 R/W
(Setting range: 1 to 4095)
Section 4.5
Averaging time for channel 3
D8286 D8296 R/W
(Setting range: 1 to 4095)
Averaging time for channel 4
D8287 D8297 R/W
(Setting range: 1 to 4095)
D8288 D8298 Error status R/W Section 4.6
D8289 D8299 Model code = 21 R Section 4.7

4.3 Selection of Temperature Unit

To switch the temperature unit of the PTW-ADP turn the special auxiliary relay ON for Fahrenheit (°F) or OFF
for Centigrade (°C).
To switch the temperature unit, use the following special auxiliary relays:
• FX3U, FX3UC Series PLC

Special auxiliary relay

Description
1st 2nd 3rd 4th
Selection of temperature unit:
M8260 M8270 M8280 M8290 OFF: Centigrade (°C)
ON: Fahrenheit (°F)

• FX3G Series PLC

Special auxiliary relay

Description
1st 2nd
Selection of temperature unit:
M8280 M8290 OFF: Centigrade (°C)
ON: Fahrenheit (°F)

1. Program Example (For FX3U, FX3UC Series PLC)

1) To switch the temperature unit to centigrade (°C) 2) To switch the temperature unit to Fahrenheit (°F)
for the 1st adapter: for the 2nd adapter:
M8001 M8000
M8260 M8270
Normally OFF Normally ON

I-18
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-PTW-ADP (4-channel Platinum Resistance Thermometer Data Input) 4.4 Temperature Measurement

A
4.4 Temperature Measurement

Common Items
The temperature data input in the PTW-ADP will be stored in the special data registers.
The special data registers that store the temperature data are shown in the following table:
• FX3U, FX3UC Series PLC
B
Special data register

FX3UC-4AD
FX3U-4AD
Description
1st 2nd 3rd 4th
D8260 D8270 D8280 D8290 Stores the channel-1 temperature measurement data.
D8261 D8271 D8281 D8291 Stores the channel-2 temperature measurement data.
D8262 D8272 D8282 D8292 Stores the channel-3 temperature measurement data. C
D8263 D8273 D8283 D8293 Stores the channel-4 temperature measurement data.

FX3U-4AD-ADP
• FX3G Series PLC

Special data register

Description
1st 2nd
D
D8280 D8290 Stores the channel-1 temperature measurement data.

FX3G-2AD-BD
D8281 D8291 Stores the channel-2 temperature measurement data.
D8282 D8292 Stores the channel-3 temperature measurement data.
D8283 D8293 Stores the channel-4 temperature measurement data.

The immediate data or the average data (data averaged in accordance with the specified averaging time) will
E

FX3U-4DA
be stored in the above data registers as the temperature measurement data.
→ For a detailed description of the averaging time, refer to Section 4.6.

1. Caution regarding temperature measurement

The special data registers for temperature measurement data are for reading only.
Do not change (rewrite) the current data using the sequence program, indicator, or device monitor of the F
programming tool.

FX3U-4DA-ADP
2. Program Example (For FX3U, FX3UC Series PLC)
M8000
FNC 12 D8260 D100 Stores the channel-1 temperature measurement
MOV data of the 1st analog special adapter in D100.
Normally
ON
G

FX3G-1DA-BD
FNC 12 D8261 D101 Stores the channel-2 temperature measurement
MOV data of the 1st analog special adapter in D101.

Even if the temperature measurement data is not stored in the D100 or the D101, the D8260 or the D8261
can be directly used in the arithmetic operation instruction or a PID instruction.
H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

I-19
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-PTW-ADP (4-channel Platinum Resistance Thermometer Data Input) 4.5 Averaging Time

4.5 Averaging Time

Setting range: 1 to 4095
Initial value: K1
Numeric data type: Decimal (K)
If the averaging time is set for the PTW-ADP, the averaged temperature measurement data will be stored in
the D8260 to D8263, D8270 to D8273, D8280 to D8283, and D8290 to D8293. The averaging time can be set
for each channel.
Set the averaging time in the following special data registers:
• FX3U, FX3UC Series PLC

Special data register

Description
1st 2nd 3rd 4th
D8264 D8274 D8284 D8294 Averaging time for channel-1 data
D8265 D8275 D8285 D8295 Averaging time for channel-2 data
D8266 D8276 D8286 D8296 Averaging time for channel-3 data
D8267 D8277 D8287 D8297 Averaging time for channel-4 data

• FX3G Series PLC

Special data register

Description
1st 2nd
D8284 D8294 Averaging time for channel-1 data
D8285 D8295 Averaging time for channel-2 data
D8286 D8296 Averaging time for channel-3 data
D8287 D8297 Averaging time for channel-4 data

1. Cautions regarding averaging time setting

• If the averaging time is set to "1", the immediate data will be stored in the temperature measurement
special data register.
• If the averaging time is set to "2" or more, the average value will be calculated in accordance with the set
averaging time, and the average value obtained will be stored in the temperature measurement special
data register.
• After turning the PLC power on, the average data will be stored in the temperature measurement special
data registers (D8260 to D8263, D8270 to D8273, D8280 to D8283, and D8290 to D8293) until the number
of data items is increased to the set averaging time.
• Set the averaging time in the range from 1 to 4095. If the set value is outside the setting range, the error
signal will be output.
→ For a detailed description of error status, refer to Section 5.5

2. Program Example (For FX3U, FX3UC Series PLC)

M8000 Sets the averaging time to "1" for the channel-1
FNC 12 K1 D8264 data of the 1st analog special adapter.
MOV
Normally
ON

FNC 12 Sets the averaging time to "5" for the channel-2

K5 D8265 data of the 1st analog special adapter.
MOV

I-20
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-PTW-ADP (4-channel Platinum Resistance Thermometer Data Input) 4.6 Error Status

A
4.6 Error Status

Common Items
If an error is detected in the PTW-ADP, the error status data will be stored in the corresponding special data
register.
The following table shows the special data registers that store the error status data:
• FX3U, FX3UC Series PLC B

FX3UC-4AD
FX3U-4AD
Special data register
Description
1st 2nd 3rd 4th
D8268 D8278 D8288 D8298 Stores the error status data.

• FX3G Series PLC C

FX3U-4AD-ADP
Special data register
Description
1st 2nd
D8288 D8298 Stores the error status data.

Check the ON/OFF status of each bit of the error status data register to determine the error. Errors are
D

FX3G-2AD-BD
assigned to the bits as shown in the following table. Create a program to detect errors.

Bit Description Bit Description

The temperature measurement data
b0 of channel 1 is outside the specified b5 Averaging time setting error
range, or disconnection is detected. E

FX3U-4DA
The temperature measurement data
b1 of channel 2 is outside the specified b6 PTW-ADP hardware error
range, or disconnection is detected.
The temperature measurement data
b2 of channel 3 is outside the specified b7 PTW-ADP communication data error
range, or disconnection is detected. F
The temperature measurement data

FX3U-4DA-ADP
b3 of channel 4 is outside the specified b8 to b15 Unused
range, or disconnection is detected.
b4 EEPROM error - -

1. Caution regarding use of error status data G

If a PTW-ADP hardware error (b6) or PTW-ADP communication data error (b7) is detected, it is necessary to

FX3G-1DA-BD
clear the error status with a program at the next power-on of the PLC.
For this reason, be sure to create the following program:
• For FX3G, FX3U, FX3UC Series PLC

M8000
MOV D8288 K4M0 H
FX3U-4AD-PT

Normally
ON
M8002
RST M6 Error status of 3rd*1 analog special adapter
-ADP

b6 = OFF (hardware error)

Initial pulse

Error status of 3rd*1 analog special adapter

I
RST M7
FX3U-4AD-PTW

b7 = OFF (communication data error)

-ADP

MOV K4M0 D8288

J
*1. "1st " for the FX3G PLC.
FX3U-4AD-PNK
-ADP

I-21
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-PTW-ADP (4-channel Platinum Resistance Thermometer Data Input) 4.6 Error Status

• For FX3U, FX3UC Series PLC

M8002
RST D8268.6 Error status of 1st analog special adapter
b6 = OFF (hardware error)
Initial pulse

RST D8268.7 Error status of 1st analog special adapter

b7 = OFF (communication data error)

2. Program Example 1 (For FX3G, FX3U, FX3UC Series PLC)

M8000
MOV D8288 K4M0

M0
Y000 The temperature measurement data
of channel 1 is outside the specified
range, or disconnection is detected.
M1
Y001 The temperature measurement data
of channel 2 is outside the specified
range, or disconnection is detected.
M2
Y002 The temperature measurement data
of channel 3 is outside the specified
range, or disconnection is detected.
M3
Y003 The temperature measurement data
of channel 4 is outside the specified
range, or disconnection is detected.
M4
Y004 EEPROM error in 3rd*1 adapter

M5
Y005 Averaging time setting error in 3rd*1
adapter

M6
Y006 PTW-ADP hardware error in 3rd*1
adapter

M7
Y007 PTW-ADP communication data error
in 3rd*1 adapter

*1. "1st " for the FX3G PLC.

I-22
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-PTW-ADP (4-channel Platinum Resistance Thermometer Data Input) 4.6 Error Status

A
3. Program Example 2 (For FX3U, FX3UC Series PLC)

Common Items
D8268.0
Y000 The temperature measurement data
of channel 1 is outside the specified
D8268.1
range, or disconnection is detected. B

FX3UC-4AD
FX3U-4AD
Y001 The temperature measurement data
of channel 2 is outside the specified
range, or disconnection is detected.
D8268.2
Y002 The temperature measurement data
of channel 3 is outside the specified
D8268.3
range, or disconnection is detected. C
Y003 The temperature measurement data

FX3U-4AD-ADP
of channel 4 is outside the specified
range, or disconnection is detected.
D8268.4
Y004 EEPROM error in 1st adapter

D
D8268.5

FX3G-2AD-BD
Y005 Averaging time setting error in 1st
adapter

D8268.6
Y006 PTW-ADP hardware error in 1st
adapter

D8268.7
E

FX3U-4DA
Y007 PTW-ADP communication data error
in 1st adapter

FX3U-4DA-ADP
G

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

I-23
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-PTW-ADP (4-channel Platinum Resistance Thermometer Data Input) 4.7 Model Code

4.7 Model Code

Initial value: K21
Numeric data type: Decimal (K)
When the PTW-ADP is connected, model code "21" will be stored in the corresponding special data register.
The following table shows the special data registers that store the model code:
• FX3U, FX3UC Series PLC

Special data register

Description
1st 2nd 3rd 4th
D8269 D8279 D8289 D8299 Model code

• FX3G Series PLC

Special data register

Description
1st 2nd
D8289 D8299 Model code

Use the special data registers above to check whether PTW-ADP is connected or not.

1. Program Example (For FX3U, FX3UC Series PLC)

FNC224 D8269 K21 Y010 Checks the model code of the 1st
LD = analog special adapter.

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-PTW-ADP (4-channel Platinum Resistance Thermometer Data Input) 4.8 Basic Program Example

A
4.8 Basic Program Example

Common Items
Create the following basic program example to read out the temperature measurement data.
• For FX3G, FX3U, FX3UC Series PLC
The following program will store the temperature measurement data (°C) from channels 1 and 2 of the 3rd*1
adapter to D100 and D101, respectively. The averaging time is set to "1" (immediate data) for channel 1, and
B

FX3UC-4AD
FX3U-4AD
"5" for channel 2.
M8000
MOV D8288 K4M0
Normally
ON
M8002 Error status of 3rd*1 analog special
C

FX3U-4AD-ADP
RST M6 adapter
Initial b6 = OFF (hardware error)
pulse Error status of 3rd*1 analog special
RST M7 adapter
b7 = OFF (communication data error)

MOV K4M0 D8288 D

FX3G-2AD-BD
M8001
Sets the temperature unit to centigrade
M8280 (°C).
M8002
FNC 12 Sets the averaging time to "1" for
K1 D8284 channel-1 data.
MOV

FNC 12 K5 D8285 Sets the averaging time to "5" for E

channel-2 data.

FX3U-4DA
MOV
M8000
FNC 12 D8280 D100 Stores the current value of the channel-1
MOV temperature measurement data in the D100.

FNC 12 D8281 D101 Stores the average value of the channel-2

MOV temperature measurement data in the D101.
F

FX3U-4DA-ADP
Even if the temperature measurement data is not stored in D100 or D101, data register D8280 or D8281 can
be directly used in the arithmetic operation instruction or a PID instruction.
*1. "1st " for the FX3G PLC.
• For FX3U, FX3UC Series PLC
The following program will store the temperature measurement data (°C) from channels 1 and 2 of the 1st
adapter to D100 and D101, respectively. The averaging time is set to "1" (immediate data) for channel 1, and
G

FX3G-1DA-BD
"5" for channel 2.
M8002 Error status of 1st analog special
RST D8268.6 adapter
b6 = OFF (hardware error)

RST D8268.7 Error status of 1st analog special

adapter H
b7 = OFF (communication data error)
FX3U-4AD-PT

M8001
Sets the temperature unit to centigrade
M8260 (°C).
M8002
-ADP

FNC 12 Sets the averaging time to "1" for

K1 D8264 channel-1 data.
MOV

FNC 12 K5 D8265 Sets the averaging time to "5" for

I
channel-2 data.
FX3U-4AD-PTW

MOV
M8000
FNC 12 D8260 D100 Stores the current value of the channel-1
MOV temperature measurement data in the D100.
-ADP

FNC 12 D8261 D101 Stores the average value of the channel-2

MOV temperature measurement data in the D101.
J
FX3U-4AD-PNK

Even if the temperature measurement data is not stored in D100 or D101, data register D8260 or D8261 can
be directly used in the arithmetic operation instruction or a PID instruction.
-ADP

I-25
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Troubleshooting
FX3U-4AD-PTW-ADP (4-channel Platinum Resistance Thermometer Data Input) 5.1 PLC Version Number Check

5. Troubleshooting
This chapter describes the troubleshooting methods and error status.
If the temperature measurement data is not input, or if the proper digital value is not input, check the following
items:
• Version number of the PLC
• Wiring
• Special devices
• Programs
• Error status

5.1 PLC Version Number Check

• Any versions (from Ver.2.20 (initial version) to the latest version) of the FX3U Series are compatible.
• Check the version number of the FX3UC Series. The version number should be 1.30 or later.
• Any versions (from Ver.1.00 (initial version) to the latest version) of the FX3G Series are compatible.
→ For a detailed description of the version number check method, refer to Section 1.3.

5.2 Wiring Check

Check the following items for wiring:

1. Power
The PTW-ADP needs driving power. Verify that the power supply line is properly connected. Also check that
the POWER indicator lamp of the PTW-ADP is on.

2. Platinum resistance thermometer sensor cable

Separate the cable of the platinum resistance thermometer from other power cables or inductive cables.
→ For a detailed description of wiring, refer to Chapter 3.

5.3 Special Device Check

Check whether the special devices for the PTW-ADP are correctly used:

1. Temperature measurement
Verify that the special device for the selected channel is correctly selected. This special device should be
selected depending on the connecting position and the channel.

2. Averaging time
Check that the set averaging time is within the specified range. The averaging time should be set in the range
from 1 to 4095. If the set averaging time is outside the specified range, an error occurs.

3. Error status
Check that no error is detected in the PTW-ADP.
If an error is detected, check the details of the error, and then check the wiring and programs.
→ For a detailed description of special devices, refer to Chapter 4.

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Troubleshooting
FX3U-4AD-PTW-ADP (4-channel Platinum Resistance Thermometer Data Input) 5.4 Program Check

A
5.4 Program Check

Common Items
Check the following items for the program:

1. Cancellation of error status at power-on

When the power is turned off and then on again, the error status should be cleared (b6 and b7 should turn off) B
using the program.

FX3UC-4AD
FX3U-4AD
2. Check of storage devices
Verify that different values are not being stored in the same device by the other parts of the programs.

5.5 Error Status Check C

FX3U-4AD-ADP
If an error occurs in the PTW-ADP, the corresponding bit will turn on.

Bit Description Bit Description

The temperature measurement data of
b0 channel 1 is outside the specified
range, or disconnection is detected.
b5 Averaging time setting error D

FX3G-2AD-BD
The temperature measurement data of
b1 channel 2 is outside the specified b6 PTW-ADP hardware error
range, or disconnection is detected.
The temperature measurement data of
b2 channel 3 is outside the specified
range, or disconnection is detected.
b7 PTW-ADP communication data error
E

FX3U-4DA
The temperature measurement data of
b3 channel 4 is outside the specified b8 to 15 Unused
range, or disconnection is detected.
b4 EEPROM error - -
To solve a problem, refer to the troubleshooting method described below: F

FX3U-4DA-ADP
1. Temperature measurement out of specified range or disconnection of line (b0 to b3)
1) Description of error
The input temperature measurement value is outside the specified range.
The temperature measurement value is not in the range between -115°C to 615°C.
Or the line between PTW-ADP and the platinum resistance thermometer sensor is disconnected. G
2) Remedy

FX3G-1DA-BD
Check that the input temperature measurement value is within the specified range. Also check the wiring
condition.

2. EEPROM error (b4)

1) Description of error
The adjustment data set in the EEPROM before delivery from our factory cannot be read out properly or
H
FX3U-4AD-PT

is destroyed.
2) Remedy
Please contact the nearest Mitsubishi Electric distributor office.
-ADP

3. Averaging time setting error (b5)

1) Description of error
I
FX3U-4AD-PTW

The averaging time set for one of the channels (channels 1 to 4) is outside the specified
range: 1 to 4095.
2) Remedy
-ADP

Check that the averaging time is correctly set for each channel.
J
FX3U-4AD-PNK
-ADP

I-27
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Troubleshooting
FX3U-4AD-PTW-ADP (4-channel Platinum Resistance Thermometer Data Input) 5.5 Error Status Check

4. PTW-ADP hardware error (b6)

1) Description of error
The PTW-ADP does not operate properly.
2) Remedy
Check that the 24V DC power is properly supplied to the PTW-ADP. Also check that the PTW-ADP is
correctly connected to the PLC.
If the problem cannot be solved even after the above check, please contact the nearest Mitsubishi
Electric distributor office.

5. PTW-ADP communication data error (b7)

1) Description of error
A communication error is detected between the PTW-ADP and the PLC.
2) Remedy
Check that the PTW-ADP is correctly connected to the PLC.
If the problem cannot be solved even after the above check, please contact the nearest Mitsubishi
Electric distributor office.

I-28
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition
FX3U-4AD-PNK-ADP (4-channel Resistance Thermometer Data Input)

Common Items
B

FX3UC-4AD
FX3U-4AD
FX3G/FX3U/FX3UC Series Programmable
Controllers C

FX3U-4AD-ADP
User's Manual [Analog Control Edition]
FX3U-4AD-PNK-ADP (4-channel Resistance
D
Thermometer Data Input)

FX3G-2AD-BD
E

FX3U-4DA
F

FX3U-4DA-ADP
G

FX3G-1DA-BD

H
FX3U-4AD-PT

Foreword
-ADP

This manual describes the specifications, wiring, and operation methods for the FX3U-4AD-PNK-ADP special
adapter (4-channel resistance thermometer data input) and should be read and understood before attempting I
to install or use the unit.
FX3U-4AD-PTW

Store this manual in a safe place so that you can take it out and read it whenever necessary. Always forward
it to the end user.
-ADP

This manual confers no industrial property rights or any rights of any other kind, nor does it confer any patent
licenses. Mitsubishi Electric Corporation cannot be held responsible for any problems involving industrial property
rights which may occur as a result of using the contents noted in this manual.
J
FX3U-4AD-PNK

© 2005 MITSUBISHI ELECTRIC CORPORATION

-ADP

J-1
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition
FX3U-4AD-TC-ADP (4-channel Resistance Thermocouple Data Input)

J-2
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 1 Outline
FX3U-4AD-PNK-ADP (4-channel Resistance Thermometer Data Input) 1.1 Outline of Functions

Common Items
1. Outline
This chapter describes the outline of FX3U-4AD-PNK-ADP (referred to as PNK-ADP). B

FX3UC-4AD
FX3U-4AD
1.1 Outline of Functions
The FX3U-4AD-PNK-ADP is an analog special adapter. Connect the FX3U-4AD-PNK-ADP to the FX3G/FX3U/
FX3UC Series PLC to read the data from the 4-channel resistance thermometer.
C
1) Up to 4 PNK-ADP units can be connected to the FX3U/FX3UC Series PLC.

FX3U-4AD-ADP
Up to 2*1 PNK-ADP units can be connected to the FX3G Series PLC.
(Including other analog special adapters)
2) Thermometer types Pt1000 and Ni1000 can be connected. (However, it's impossible to use both types
Pt1000 and Ni1000 with 1 adapter.)
3) The temperature data will be automatically written to the special data register of the FX3G/FX3U/FX3UC D
Series PLC.

FX3G-2AD-BD
System Point and section to be referred to

FX3U, FX3UC Series PLC : 4 maximum

FX3G Series PLC : 2*1 maximum
(including other analog special adapters)
……
Number of connectable
units E
FX3U/FX3UC /FX3G Series PLC

FX3U-4DA
To check the connectable
…… PLC model number, refer

+ + to Section 1.3.

FX3U-4DA-ADP
Expansion
4th 3rd 2nd 1st
adapter adapter adapter adapter board*2
For a detailed
…… description of wiring,
Analog data refer to Chapter 3.

Resistance thermometer sensor type

G

FX3G-1DA-BD
Pt1000 and Ni1000

For FX3U, FX3UC

Series PLC For a detailed description
Description Transfer direction Special devices
1st adapter M/D8260 to M/D8269
…… of special devices, refer to
Chapter 4. H
Temperature measurement
FX3U-4AD-PT

For a detailed description

Setting of temperature unit 2nd adapter M/D8270 to M/D8279 of a basic program, refer to
Switching of types between Section 4.9.
3rd adapter M/D8280 to M/D8289
type Pt1000 and Ni1000
-ADP

Setting of averaging time 4th adapter M/D8290 to M/D8299

Refer to the system configuration shown in the User's Manual - Hardware Edition to check the number of connectable units
and to configure the entire system. I
FX3U-4AD-PTW

*1. Only 1 analog special adapter can be connected to the 14-point and 24-point type main unit.
*2. The expansion board is not required when connecting with the FX3UC (D, DSS) PLC.
-ADP

For the FX3G Series PLC a connector conversion adapter is used.

J
FX3U-4AD-PNK
-ADP

J-3
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 1 Outline
FX3U-4AD-PNK-ADP (4-channel Resistance Thermometer Data Input) 1.2 Setup Procedure Before Starting Operation

1.2 Setup Procedure Before Starting Operation

Before starting analog input using PNK-ADP, follow the procedure below to set up the system:

FX3U-4AD-PNK-ADP

Refer to Chapter 1.

Outline Outline of system:

•Compatible PLC version number
•Compatible programming tool version number
Refer to Chapter 2.

Specifications check Specifications:

•Operation environment
•Performance specifications
Refer to the common •Input characteristics
pages.

System configuration and selection System configuration:

(Refer to the common pages for analog control.)
•Selection of units
Refer to Chapter 3.

Wiring Wiring:
•Selection of sensor cable
•Power supply line
Refer to Chapter 4. •Analog input line

Programming Programming:
•Details of special devices
•Examples of basic programs

If the error status data or the input analog value is

abnormal, refer to Chapter 5 "Troubleshooting."

J-4
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 1 Outline
FX3U-4AD-PNK-ADP (4-channel Resistance Thermometer Data Input) 1.3 Connectable PLC and Its Version Number

A
1.3 Connectable PLC and Its Version Number

Common Items
PNK-ADP is compatible with the following PLC.

Compatible PLC Version number Date of production

FX3U Series PLC Ver. 2.20 or later After May 2005 (initial production) B

FX3UC-4AD
FX3U-4AD
FX3UC Series PLC Ver. 1.30 or later After August 2004
FX3G Series PLC Ver. 1.00 or later After June 2008 (initial production)

1. Version check
Special data register D8001 contains information for determining the PLC version number.
C

FX3U-4AD-ADP
D8001 2 4 1 0 0
PLC type and
version number Version data (Example: Ver. 1.00)

(
PLC type Example: 24 = FX3U and FX3UC series
) D
26 = FX3G series

FX3G-2AD-BD
2. How to look at the manufacturer's serial number
The year and month of production of the product can be seen from the manufacturer's serial number
"SERIAL" indicated on the label adhered to the right side of the product.

Example:
E

FX3U-4DA
FX3U-48MR/ES(production number : 570001)
PROGRAMMABLE
Right side MITSUBISHI CONTROLLER

MODEL FX3U-48MR/ES
100-240VAC 50/60Hz 40W
OUT:30VDC/240VAC 2A(COSφ=1)
F
SERIAL 570001

FX3U-4DA-ADP
80M1 IND. CONT. EQ.
MITSUBISHI ELECTRIC CORPORATION
MADE IN JAPAN

5 7 0 0 0 1
G

FX3G-1DA-BD
Control number
Month (Example: 7 = July), 1 to 9 = January to September,
X = October, Y = November, Z = December
Year (Example: 5 = 2005), last digit of dominical year

H
1.4 Compatible Programming Tool Version Number
FX3U-4AD-PT

Use the programming tool having the following version number to create programs for PNK-ADP:
-ADP

Software Version number Remarks

GX Developer Ver. SW8 P or later I
(Ver. 8.13P) When selecting a model, select FX3U(C)*1.
FX3U-4AD-PTW

• SW D5C-GPPW-J
• SW D5C-GPPW-E (Ver. 8.72A or later) When selecting a model, select FX3G.
-ADP

If a programming tool with the wrong version number is used, programming will not be possible.
*1. For Ver. 8.13P to 8.24A of GX Developer, select FX3UC for the PLC type. J
FX3U-4AD-PNK
-ADP

J-5
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 Specifications
FX3U-4AD-PNK-ADP (4-channel Resistance Thermometer Data Input) 2.1 Generic Specifications

2. Specifications
This chapter describes the general, power supply, and performance specifications for the PNK-ADP.

2.1 Generic Specifications

Item Specifications
0 to 55°C (32 to 131°F) when operating
Ambient temperature
-25 to 75°C (-13 to 167°F) when stored
Relative humidity 5 to 95%RH (no condensation) when operating
Frequency Acceleration Half amplitude
(Hz) (m/s2) (mm)
Tested 10 times in
10 - 57 - 0.035 each direction (X-, Y-,
Vibration resistance DIN Rail Mounting
57 - 150 4.9 - and Z-axis directions)
(Total: 80 min, each)
10 to 57 − 0.075
Direct Mounting*1
57 to 150 9.8 −
147 m/s2 Acceleration, Action time: 11ms, 3 times by half-sine pulse in each direction X, Y,
Shock resistance
and Z
Using noise simulator of:
Noise resistance
Noise voltage: 1,000Vp-p / Noise width: 1µs / Rise: 1ns / Cycle: 30 to 100Hz
Dielectric withstand
500 V AC, for 1 min
voltage
Between batch of all terminals and ground terminal
5MΩ or more using 500V DC
Insulation resistance
insulation resistance meter
Class D grounding (grounding resistance: 100 Ω or less)
Grounding
<Common grounding with a heavy electrical system is not allowed.>*2
Working
Free from corrosive or flammable gas and excessive conductive dusts
environment
Working altitude < 2000m*3

*1. If PNK-ADP is connected to the FX3UC Series PLC, direct installation is not possible.
*2. Other Other Other
PLC equipment PLC equipment PLC equipment

Independent grounding Shared grounding Common grounding

Best condition Good condition Not allowed

→ For a detailed description of the grounding, refer to Section 3.7.

*3. If the pressure is higher than the atmospheric pressure, do not use the PNK-ADP.
The PNK-ADP may malfunction.

2.2 Power Supply Specifications

Item Specifications
A/D conversion circuit 24V DC +20% -15%, 45mA
driving power (It is necessary to connect a 24V DC power supply to the terminal block.)
5V DC, 15mA
Interface driving power (Since the internal power is supplied from the FX Series main unit, it is not
necessary to supply the power.)

J-6
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 Specifications
FX3U-4AD-PNK-ADP (4-channel Resistance Thermometer Data Input) 2.3 Performance Specifications

A
2.3 Performance Specifications

Common Items
Specifications
Item
Centigrade (°C) Fahrenheit (°F) B

FX3UC-4AD
FX3U-4AD
Platinum resistance thermometer sensor (2-wire or 3-wire) Pt1000
JIS C 1604-1997
Input signal
Nickel resistance thermometer sensor (2-wire or 3-wire) Ni1000
DIN 43760-1987

Rated temperature Pt1000 -50°C to +250°C Pt1000 -58°F to +482°F

range Ni1000 -40°C to +110°C Ni1000 -40°F to +230°F
C

FX3U-4AD-ADP
Pt1000 -500 to +2500 Pt1000 -580 to +4820
Digital output
Ni1000 -400 to +1100 Ni1000 -400 to +2300
Pt1000 Pt1000
Resolution 0.1°C 0.2°F
Ni1000 Ni1000
±0.5% for full scale (when ambient temperature is 25°C±5°C)
D
Total accuracy

FX3G-2AD-BD
±1.0% for full scale (when ambient temperature is in the range of 0 to 55°C)
• FX3U/FX3UC Series PLC : 200µs (The data will be updated at every scan time.)
A/D conversion
• FX3G PLC : 250µs (The data will be updated at every scan time.)
time
→For a detailed description of data update, refer to Section2.4.

FX3U-4DA
-Pt1000 -Pt1000
+2560 +4920
+2500 +4820

+492.8°F
Approx.
+256°C

Approx.
-50°C -58°F 0
F
0

FX3U-4DA-ADP
Approx.

Approx.

+250°C +482 °F
-55°C

-67°F

-500 -580
Input -550 -670
characteristics
-Ni1000
+1150
-Ni1000
+2390 G
+1100 +2300

FX3G-1DA-BD
Approx.
Approx.
+115°C

+239°F

-40°C 0 -40°F 0

H
Approx.

Approx.

+110°C +230°F
-45°C

-49°F

-400 -400
FX3U-4AD-PT

-450 -490
-ADP

• The photocoupler is used to insulate the analog input area from the PLC.
Insulation method • The DC/DC converter is used to insulate the power supply line from the analog input area.
• Channels are not insulated from each other. I
Number of I/O 0 points
FX3U-4AD-PTW

points occupied (This number is not related to the maximum number of input/output points of the PLC.)
-ADP

J
FX3U-4AD-PNK
-ADP

J-7
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 Specifications
FX3U-4AD-PNK-ADP (4-channel Resistance Thermometer Data Input) 2.4 A/D Conversion Time

2.4 A/D Conversion Time

This section describes the A/D conversion time.

2.4.1 When connected to a FX3U, FX3UC PLC

1. A/D conversion and special data register update timing

A/D conversion is performed at every arithmetic operation of the PLC.
During execution of END instruction, the PLC performs A/D conversion, reads out the A/D converted data,
and then writes the data in the special data registers.

FX3U-4AD-PNK-ADP FX3U-4AD-PNK-ADP
n'th 1st FX3U/FX3UC Series PLC

Sequence
program
A/D conversion start
A/D command
conversion
Digital value writing
200 µs/4ch
A/D conversion start END instruction
A/D command
conversion
Digital value writing
200 µs/4ch

2. A/D conversion during PLC stop

Even if the PLC is stopped, A/D conversion will be performed and the special data registers will be updated.

3. If two or more analog special adapters are connected

During execution of the END instruction, data will be read out from all the connected adapters (in the order of
1st adapter → 2nd adapter…4th adapter).

4. A/D conversion speed (data update time)

During execution of the END instruction, the A/D converted data of all 4 channels will be read out in 200µs,
and the data read out will be written to the special data registers.
END instruction execution time will be "200µs × number of connected adapters."

J-8
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 Specifications
FX3U-4AD-PNK-ADP (4-channel Resistance Thermometer Data Input) 2.5 Temperature Measurement

A
2.4.2 When connected to a FX3G PLC

Common Items
1. A/D conversion and special data register update timing
A/D conversion is performed at every scan time of the PLC.
During execution of END instruction, the PLC performs A/D conversion, reads out the A/D converted data,
and then writes the data in the special data registers. B

FX3UC-4AD
FX3U-4AD
FX3U-4AD-PNK-ADP FX3U-4AD-PNK-ADP
2nd 1st FX3G Series PLC

Sequence
program
C

FX3U-4AD-ADP
A/D conversion start
A/D command
conversion
Digital value writing
250 µs/4ch
END instruction
D
A/D conversion start
A/D command
conversion

FX3G-2AD-BD
Digital value writing
250 µs/4ch

2. A/D conversion during PLC stop E

Even if the PLC is stopped, A/D conversion will be performed and the special data registers will be updated.

FX3U-4DA
3. If two analog special adapters are connected
During execution of the END instruction, data will be read out from all the connected adapters (in the order of
1st adapter → 2nd adapter).

4. A/D conversion speed (data update time) F

FX3U-4DA-ADP
During execution of the END instruction, the A/D converted data of all 4 channels will be read out in 250µs,
and the data read out will be written to the special data registers.
END instruction execution time will be "250µs × number of connected adapters."

2.5 Temperature Measurement G

FX3G-1DA-BD
To stabilize the temperature measurement, warm-up the system for 30 minutes or more after power-on.

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

J-9
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3U-4AD-PNK-ADP (4-channel Thermometer Data Input)

3. Wiring
This chapter describes the PNK-ADP wiring.
Observe the following caution to wire the PNK-ADP.

WIRING PRECAUTIONS

• Make sure to cut off all phases of the power supply externally before attempting wiring work.
Failure to do so may cause electric shock or damages to the product.

WIRING PRECAUTIONS

• Connect the DC power supply wiring to the dedicated terminals described in this manual.
If an AC power supply is connected to a DC input/output terminal or DC power supply terminal, the PLC will be
burnt out.
• Do not wire vacant terminals externally.
Doing so may damage the product.
• Perform class D grounding (grounding resistance: 100Ω or less) to the grounding terminal on the main unit.
Do not use common grounding with heavy electrical systems.
• When drilling screw holes or wiring, make sure cutting or wire debris does not enter the ventilation slits.
Failure to do so may cause fire, equipment failures or malfunctions.
• Make sure to observe the following precautions in order to prevent malfunctions under the influence of noise:
- Do not bundle the power line or twisted shielded cable together with or lay it close to the main circuit, high-
voltage line, or load line.
Otherwise, noise disturbance and/or surge induction are likely to take place. As a guideline, lay the control line
at least 100mm (3.94") or more away from the main circuit, high-voltage line, or load line.
- Ground the shield of the analog input/output cable at one point on the signal receiving side.
However, do not use common grounding with heavy electrical systems.
• Make sure to properly wire to the European terminal board in accordance with the following precautions.
Failure to do so may cause electric shock, a short-circuit, wire breakage, or damage to the product.
- The disposal size of the cable end should be 9 mm (0.35").
- Tightening torque should be between 0.22 to 0.25 N•m.
- Twist the end of strand wire and make sure there are no loose wires.
- Do not solder-plate the electric wire ends.
- Do not connect more than the specified number of wires or electric wires of unspecified size.
- Affix the electric wires so that neither the terminal block nor the connected parts are directly stressed.

J-10
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3U-4AD-PNK-ADP (4-channel Resistance Thermometer Data Input) 3.1 Terminal Layout

A
3.1 Terminal Layout

Common Items
The terminals of the PNK-ADP are arranged as follows:

FX3UC-4AD
FX3U-4AD
FX3U-4AD-PNK
-ADP
POWER

Signal Application C

FX3U-4AD-ADP
24+
24+

External power
24-
24-

Ground terminal
L1+
L1+

Channel-1 Pt1000/Ni1000
L1-
L1-

D
sensor input
l1-
I1-
L2+

L2+

FX3G-2AD-BD
Channel-2 Pt1000/Ni1000
L2-

L2- sensor input

I2-

l2-
L3+

L3+
Channel-3 Pt1000/Ni1000
L3-
L3-

sensor input
l3-
E
I3-

L4+
L4+

Channel-4 Pt1000/Ni1000

FX3U-4DA
L4-
L4-

sensor input
l4-
I4-

FX3U-4DA-ADP
G

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

J-11
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3U-4AD-PNK-ADP (4-channel Resistance Thermometer Data Input) 3.2 Applicable Cables and Terminal Tightening Torque

3.2 Applicable Cables and Terminal Tightening Torque

Use the following cables to connect with the counterpart equipment. Terminate the cable end as shown below.

1. Cables
Applicable cable and tightening torque
Wire size Tightening
Termination
(stranded/single-wire) torque
0.3 mm2 to 0.5 mm2 • To connect a stranded cable, peel the cover off the cable
Single-wire and then twist the core before connection.
(AWG22 to 20)
• To connect a single-wire cable, just strip the cover off the
2-wire 0.3mm2(AWG22) cable before connection.
0.22 N•m to • Rod terminal with insulation sleeve
Rod terminal 0.3 mm2 to 0.5 mm2 0.25 N•m (recommended terminal)
with (AWG22-20) AI 0.5-8WH : Manufactured by Phoenix Contact
insulation (Refer to the rod terminal
• Caulking tool
sleeve external view shown in the
CRIMPFOX ZA 3 : Manufactured by Phoenix Contact
following figure.)
(or CRIMPFOX UD 6 : Manufactured by Phoenix Contact)

2. Termination of cable end

To terminate the cable, treat the stranded/single wire directly or use a rod terminal with insulation sleeve.
• To directly terminate the end of a stranded/single-wire cable: Termination of cable end
- Twist the end of the stranded cable so that the "barbed wires"
cannot protrude.
- Do not solder-plate the end of the cable.
9mm
(0.35")
• To terminate cable end using a rod terminal with insulation sleeve:
If the cable cover is too thick, it may be difficult to insert the cable into Insulation sleeve Contact area
the insulation sleeve. For this reason, select an appropriate cable while (Crimp area)
referring to the external view.
8mm (0.31")
Manufacturer Model Caulking tool
2.6mm 14mm
CRIMPFOX ZA 3 (0.1")
Phoenix Contact AI 0.5-8WH (0.55")
(or CRIMPFOX UD 6)

3. Tool
• To tighten terminals, use a small-sized screwdriver whose head is straight and is not widened as shown in
the figure to the right.

Note:
If the diameter of screwdriver grip is too small, tightening torque will not
The head
be able to be achieved. Use the following recommended screwdriver or should be
an appropriate replacement (grip diameter: approximately 25mm). straight.

Manufacturer Model
Phoenix Contact SZS 0.4×2.5 0.4mm 2.5mm
(0.01") (0.09")

J-12
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3U-4AD-PNK-ADP (4-channel Resistance Thermometer Data Input) 3.3 Power Supply Line

A
3.3 Power Supply Line

Common Items
Connect the 24V DC power supply line of the PNK-ADP to the 24+ and 24- terminals of the terminal block.

3.3.1 To connect to FX3G, FX3U Series PLC

B

FX3UC-4AD
FX3U-4AD
1. To use an external power 2. To use the 24V DC power of the PLC

PNK-ADP PNK-ADP
FX3G/FX3U FX3G/FX3U
+5V Series PLC +5V Series PLC
(Main unit) (Main unit)
C

FX3U-4AD-ADP
24- 24+ 24- 24+ 0V 24V D

FX3G-2AD-BD
Terminal Terminal
block block

Class-D Class-D
grounding
E
24V DC grounding

Caution regarding connection of the power supply line:

FX3U-4DA
• Ground the " " terminal to a class-D grounding power supply line (100Ω or less) together with the
grounding terminal of the PLC main unit.
• For the timing of power-on/off when using an external power supply, see the following manual of the PLC
to be connected.
→ Refer to the FX3G Series User's Manual - Hardware Edition. F
→ Refer to the FX3U Series User's Manual - Hardware Edition.

FX3U-4DA-ADP
3.3.2 To connect to the FX3UC Series PLC

PNK-ADP
FX3UC Series PLC
FX2NC
Series PLC
G

FX3G-1DA-BD
+5V (Main unit) (Input extension
block)

Power H
Power crossover
FX3U-4AD-PT

Power
connector connector connector

24- 24+ 24- 24+ 24- 24+ 24- 24+

-ADP

Terminal Black Red Green Black Red

block
I
FX3U-4AD-PTW

Class-D
24V DC grounding
-ADP

Cautions regarding connection of the power supply line: J

• For the 24V DC power supply line, be sure to use the same power as the FX3UC Series PLC.
FX3U-4AD-PNK

• Ground the " " terminal to a class-D grounding power supply line (100Ω or less) together with the
ground terminal of the PLC main unit.
-ADP

J-13
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3U-4AD-PNK-ADP (4-channel Resistance Thermometer Data Input) 3.4 Selection of the Resistance Thermometer Sensor

3.4 Selection of the Resistance Thermometer Sensor

Select the Pt1000/Ni1000 (2-wire or 3-wire sensors) resistance thermometer sensor.

3.5 Wiring of the Resistance Thermomester Sensor

Wiring depends on the resistance thermometer sensor type selected. Refer to the following wiring diagrams:

Resistance thermometer PNK-ADP

wiring
+5V
3-wire
sensors Terminal 47kΩ 47kΩ
type Shield wire*3 block
1MΩ ch

L
+
L
-
I
- 1MΩ

+5V
2-wire
sensors 47kΩ 47kΩ
type
1MΩ ch

L
+
L
-
*2 1MΩ
I
-

External power supply

wiring +5V

24+
24V DC*1
24-

Class-D grounding
L
+, L
-, I
-, ch
:
represents the channel number.

*1. 24V DC service power supply of the FX3G/FX3U Series PLC can also be used.
*2. When using a 2-wire temperature sensor type, short-circuit the [L† -] terminal and the [I† -] terminal.
For the lead wire use a 10Ω resistance or less per line.
*3. Separate the cable of the platinum resistance themometer sensor from the other power cables or
areas easily affected by inductive noise (of the commercial power, etc.).

J-14
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3U-4AD-PNK-ADP (4-channel Resistance Thermometer Data Input) 3.6 Caution Regarding Wiring

A
3.6 Caution Regarding Wiring

Common Items
• It is not possible to connect different types of resistance thermometer to 4 channels of PNK-ADP. Be sure
to use the same type of resistance thermometer for all the channels.

3.7 Grounding
B

FX3UC-4AD
FX3U-4AD
Grounding should be performed as stated below.
• The grounding resistance should be 100Ω or less.
• Independent grounding should be performed for best results.
When independent grounding is not performed, perform "shared grounding" as shown in the following C
figure.

FX3U-4AD-ADP
→ For details, refer to the User’s Manual - Hardware Edition of the PLC Series.

PLC Other PLC Other PLC Other

equipment equipment equipment

Independent grounding Shared grounding Common grounding D

Best condition Good condition Not allowed

FX3G-2AD-BD
• The grounding wire size should be AWG22 to 20 (0.3 to 0.5 mm2).
• The grounding point should be close to the PLC, and all grounding wires should be as short as possible.

FX3U-4DA
F

FX3U-4DA-ADP
G

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

J-15
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-PNK-ADP (4-channel Resistance Thermometer Data Input) 4.1 Loading of A/D Conversion Data

4. Programming
This chapter describes how to create programs that can read out the analog data using the PNK-ADP.

4.1 Loading of A/D Conversion Data

1) The input analog data will be converted into digital data and then stored in the special devices of the
FX3U/FX3UC/FX3G Series PLC.
2) If data is stored in the special devices, the averaging time can be set, and the input mode can be
specified.
3) Special auxiliary relays (10 points) and special data registers (10 points) are assigned automatically
starting from the adapter nearest to the main unit.
→ For a detailed description of special device assignment, refer to Subsection 4.2.
• FX3U, FX3UC Series PLC
Communi- High-speed
cation input/output
FX3U-4AD FX3U-4AD FX3U-4AD special FX3U-4AD special
-PNK-ADP -PNK-ADP -PNK-ADP adapter -PNK-ADP adapter FX3U/FX3UC Series PLC

4th 3rd 2nd 1st Special devices

Special auxiliary relays:
M8260 to M8269
A/D Special data registers:
D8260 to D8269

Special auxiliary relays:

M8270 to M8279
A/D Special data registers:
D8270 to D8279
Sequence
program
Special auxiliary relays:
M8280 to M8289
A/D Special data registers:
D8280 to D8289

Special auxiliary relays:

M8290 to M8299
A/D Special data registers:
D8290 to D8299

The analog special adapter nearest to the main unit is counted as the 1st analog special adapter, and the
next adapter as the 2nd analog special adapter, and so on. However, in this case, do not include the high-
speed input/output special adapter and the communication special adapter.

J-16
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-PNK-ADP (4-channel Resistance Thermometer Data Input) 4.1 Loading of A/D Conversion Data

A
• FX3G Series PLC

Common Items
Communi-
cation Connector
FX3U-4AD FX3U-4AD
special conversion
-PNK-ADP -PNK-ADP
adapter adapter FX3G Series PLC

2nd*1 1st
Special devices B

FX3UC-4AD
FX3U-4AD
Special auxiliary relays:
M8280 to M8289
A/D Special data registers:
D8280 to D8289 Sequence
Program
Special auxiliary relays:

A/D
M8290 to M8299
Special data registers:
C

FX3U-4AD-ADP
D8290 to D8299

The analog special adapter nearest to the main unit is counted as the 1st analog special adapter, and the
next adapter as the 2nd analog special adapter, and so on. However, in this case, do not include the
connect conversion adapter and the communication special adapter.
*1. The second special adapter is not available in the 14-point and 24-point type main unit.
D

FX3G-2AD-BD
E

FX3U-4DA
F

FX3U-4DA-ADP
G

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

J-17
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-PNK-ADP (4-channel Resistance Thermometer Data Input) 4.2 List of Special Devices

4.2 List of Special Devices

If PNK-ADP is connected, special devices will be assigned automatically as shown in the following table:
• FX3U, FX3UC Series PLC
R: Read / W: Write
Special Device number
Description Attribute Refer to
device 1st 2nd 3rd 4th
Section
M8260 M8270 M8280 M8290 Selects the temperature unit R/W
4.3
Special
Section
auxiliary M8261 M8271 M8281 M8291 Input sensor selection R/W
4.4
relay
M8262 to M8272 to M8282 to M8292 to
Unused (Do not use.) - -
M8269 M8279 M8289 M8299
Channel-1 temperature measurement
D8260 D8270 D8280 D8290 R
data
Channel-2 temperature measurement
D8261 D8271 D8281 D8291 R
data Section
Channel-3 temperature measurement 4.5
D8262 D8272 D8282 D8292 R
data
Channel-4 temperature measurement
D8263 D8273 D8283 D8293 R
data
Averaging time for channel 1
Special D8264 D8274 D8284 D8294 R/W
(Setting range: 1 to 4095)
data
register Averaging time for channel 2
D8265 D8275 D8285 D8295 R/W
(Setting range: 1 to 4095) Section
Averaging time for channel 3 4.6
D8266 D8276 D8286 D8296 R/W
(Setting range: 1 to 4095)
Averaging time for channel 4
D8267 D8277 D8287 D8297 R/W
(Setting range: 1 to 4095)
Section
D8268 D8278 D8288 D8298 Error status R/W
4.7
Section
D8269 D8279 D8289 D8299 Model code = 11 R
4.8

J-18
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-PNK-ADP (4-channel Resistance Thermometer Data Input) 4.3 Selection of Temperature Unit

A
• FX3G Series PLC

Common Items
R: Read / W: Write
Device number
Special device Description Attribute Refer to
1st 2nd
M8280 M8290 Selects the temperature unit R/W Section 4.3
M8281 M8291 Input sensor selection R/W Section 4.4
B
Special auxiliary relay

FX3UC-4AD
FX3U-4AD
M8282 to M8292 to
Unused (Do not use.) - -
M8289 M8299
Channel-1 temperature measurement
D8280 D8290 R
data

D8281 D8291
Channel-2 temperature measurement
data
R C
Section 4.5

FX3U-4AD-ADP
Channel-3 temperature measurement
D8282 D8292 R
data
Channel-4 temperature measurement
D8283 D8293 R
data

Special data register D8284 D8294

Averaging time for channel 1
(Setting range: 1 to 4095)
R/W D

FX3G-2AD-BD
Averaging time for channel 2
D8285 D8295 R/W
(Setting range: 1 to 4095)
Section 4.6
Averaging time for channel 3
D8286 D8296 R/W
(Setting range: 1 to 4095)

D8287 D8297
Averaging time for channel 4
(Setting range: 1 to 4095)
R/W E

FX3U-4DA
D8288 D8298 Error status R/W Section 4.7
D8289 D8299 Model code = 11 R Section 4.8

4.3 Selection of Temperature Unit

F

FX3U-4DA-ADP
The state of special auxiliary relays decides the PNK-ADP's temperature unit as shown in the table below.
To switch the temperature unit, use the following special auxiliary relays:
• FX3U, FX3UC Series PLC

Special auxiliary relay

1st 2nd 3rd 4th
Description G

FX3G-1DA-BD
Selection of temperature unit:
M8260 M8270 M8280 M8290 OFF: Centigrade (°C)
ON: Fahrenheit (°F)

• FX3G Series PLC

Special auxiliary relay
H
FX3U-4AD-PT

Description
1st 2nd
Selection of temperature unit:
-ADP

M8280 M8290 OFF: Centigrade (°C)

ON: Fahrenheit (°F)
I
FX3U-4AD-PTW

1. Program Example (For FX3U, FX3UC Series PLC)

1)To switch the temperature unit to 2) To switch the temperature unit to
-ADP

centigrade (°C) for the 1st adapter: Fahrenheit (°F) for the 2nd adapter:
M8001 M8000
M8260 M8270 J
Normally OFF Normally ON
FX3U-4AD-PNK
-ADP

J-19
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-PNK-ADP (4-channel Resistance Thermometer Data Input) 4.4 Input sensor selection

4.4 Input sensor selection

Turn on the Pt1000 type or off the Ni1000 type selection special auxiliary relay to select the Pt1000 or Ni1000
for PNK-ADP.
The input sensor type will be selected for all the channels at the same time.
To select the input sensor type, use the following special auxiliary relays:
• FX3U, FX3UC Series PLC

Special auxiliary relay

Description
1st 2nd 3rd 4th
Input sensor selection:
M8261 M8271 M8281 M8291 OFF: Pt1000
ON: Ni1000

• FX3G Series PLC

Special auxiliary relay

Description
1st 2nd
Input sensor selection:
M8281 M8291 OFF: Pt1000
ON: Ni1000

1. Program Example (For FX3U, FX3UC Series PLC)

1) To select Pt1000 for the 1st adapter: 2)To select Ni1000 for the 2nd adapter :
M8001 M8000
M8261 M8271
Normally OFF Normally ON

J-20
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-PNK-ADP (4-channel Resistance Thermometer Data Input) 4.5 Temperature Measurement

A
4.5 Temperature Measurement

Common Items
The temperature data input in the PNK-ADP will be stored in the special data registers.
The special data registers that store the temperature data are shown in the following table:
• FX3U, FX3UC Series PLC
B
Special data register

FX3UC-4AD
FX3U-4AD
Description
1st 2nd 3rd 4th
D8260 D8270 D8280 D8290 Stores the channel-1 temperature measurement data.
D8261 D8271 D8281 D8291 Stores the channel-2 temperature measurement data.
D8262 D8272 D8282 D8292 Stores the channel-3 temperature measurement data. C
D8263 D8273 D8283 D8293 Stores the channel-4 temperature measurement data.

FX3U-4AD-ADP
• FX3G Series PLC

Special data register

Description
1st 2nd
D
D8280 D8290 Stores the channel-1 temperature measurement data.

FX3G-2AD-BD
D8281 D8291 Stores the channel-2 temperature measurement data.
D8282 D8292 Stores the channel-3 temperature measurement data.
D8283 D8293 Stores the channel-4 temperature measurement data.

The immediate data or the average data (data averaged in accordance with the specified averaging time) will
E

FX3U-4DA
be stored in the above data registers as the temperature measurement data.
→ For a detailed description of the averaging time, refer to Section 4.6.

1. Caution regarding temperature measurement

The temperature measurement data are for reading only.
Do not change (rewrite) the current data using the sequence program, indicator, or device monitor of the F
programming tool.

FX3U-4DA-ADP
2. Program Example (For FX3U, FX3UC Series PLC)
M8000
FNC 12
MOV
D8260 D100 Stores the channel-1 temperature measurement data
of the 1st analog special adapter in the D100.
G
Normally

FX3G-1DA-BD
ON

FNC 12 Stores the channel-2 temperature measurement data

D8261 D101 of the 1st analog special adapter in the D101.
MOV

Even if the temperature measurement data is not stored in D100 or D101, data registers D8260 or D8261 can
be directly used in the arithmetic operation instruction or a PID instruction. H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

J-21
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-PNK-ADP (4-channel Resistance Thermometer Data Input) 4.6 Averaging Time

4.6 Averaging Time

Setting range: 1 to 4095
Initial value: K64
Numeric data type: Decimal (K)
If the averaging time is set for the PNK-ADP, the averaged temperature measurement data will be stored in
the D8260 to D8263, D8270 to D8273, D8280 to D8283, and D8290 to D8293. The averaging time can be set
for each channel.
Set the averaging time in the following special data registers:
• FX3U, FX3UC Series PLC

Special data register

Description
1st 2nd 3rd 4th
D8264 D8274 D8284 D8294 Averaging time for channel-1 data
D8265 D8275 D8285 D8295 Averaging time for channel-2 data
D8266 D8276 D8286 D8296 Averaging time for channel-3 data
D8267 D8277 D8287 D8297 Averaging time for channel-4 data

• FX3G Series PLC

Special data register

Description
1st 2nd
D8284 D8294 Averaging time for channel-1 data
D8285 D8295 Averaging time for channel-2 data
D8286 D8296 Averaging time for channel-3 data
D8287 D8297 Averaging time for channel-4 data

1. Cautions regarding averaging time setting

• If the averaging time is set to "1", the immediate data will be stored in the temperature measurement
special data register.
• If the averaging time is set to "2" or more, the average value will be calculated in accordance with the set
averaging time, and the average value obtained will be stored in the temperature measurement special
data register.
• After turning the PLC power on, the average data will be stored in the temperature measurement special
data registers (D8260 to D8263, D8270 to D8273, D8280 to D8283, and D8290 to D8293) until the number
of data items is increased to the set averaging time.
• Set the averaging time in the range from 1 to 4095. If the set value is outside the setting range, the error
signal will be output.
→ For a detailed description of error status, refer to Section 5.5

2. Program Example (For FX3U, FX3UC Series PLC)

M8000
FNC 12 K32 D8264 Sets the averaging time to "32" for the channel-1
MOV data of the 1st analog special adapter.
Normally
ON

FNC 12 K128 D8265 Sets the averaging time to "128" for the channel-2
MOV data of the 1st analog special adapter.

J-22
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-PNK-ADP (4-channel Resistance Thermometer Data Input) 4.7 Error Status

A
4.7 Error Status

Common Items
If an error is detected on PNK-ADP, the error status data will be stored in the corresponding special data
register.
The following table shows the special data registers that store the error status data:
• FX3U, FX3UC Series PLC B

FX3UC-4AD
FX3U-4AD
Special data register
Description
1st 2nd 3rd 4th
D8268 D8278 D8288 D8298 Stores the error status data.

• FX3G Series PLC C

FX3U-4AD-ADP
Special data register
Description
1st 2nd
D8288 D8298 Stores the error status data.

Check the ON/OFF status of each bit of the error status data register to determine the error. Errors are
D

FX3G-2AD-BD
assigned to the bits as shown in the following table. Create a program to detect errors.

Bit Description Bit Description

The temperature measurement data
b0 of channel 1 is outside the specified b5 Averaging time setting error
range, or disconnection is detected. E

FX3U-4DA
The temperature measurement data
b1 of channel 2 is outside the specified b6 PNK-ADP hardware error
range, or disconnection is detected.
The temperature measurement data
b2 of channel 3 is outside the specified b7 PNK-ADP communication data error
range, or disconnection is detected. F
The temperature measurement data

FX3U-4DA-ADP
b3 of channel 4 is outside the specified b8 to b15 Unused
range, or disconnection is detected.
b4 EEPROM error - -

1. Caution regarding use of error status data G

If a PNK-ADP hardware error (b6) or PNK-ADP communication data error (b7) is once detected, it is

FX3G-1DA-BD
necessary to clear the error status with a program at next power-on of the PLC.
For this reason, be sure to create the following program:
• For FX3G, FX3U, FX3UC Series PLC

M8000
MOV D8288 K4M0
H
FX3U-4AD-PT

Normally
ON
M8002 Error status in the 3rd*1 analog special adapter
-ADP

RST M6 b6 = OFF (hardware error)

Initial pulse
I
Error status in the 3rd*1 analog special adapter
FX3U-4AD-PTW

RST M7
b7 = OFF (communication data error)
-ADP

*1. "1st" for the FX3G PLC.

J
FX3U-4AD-PNK
-ADP

J-23
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-PNK-ADP (4-channel Resistance Thermometer Data Input) 4.7 Error Status

• For FX3U, FX3UC Series PLC

M8002 Error status in the 1st analog special adapter

RST D8268.6 b6 = OFF (hardware error)
Initial pulse

RST D8268.7 Error status in the 1st analog special adapter

b7 = OFF (communication data error)

2. Program Example 1 (For FX3G, FX3U, FX3UC Series PLC)

M8000
MOV D8288 K4M0

M0
Y000 The temperature measurement data
of channel 1 is outside the specified
range, or disconnection is detected.
M1
Y001 The temperature measurement data
of channel 2 is outside the specified
range, or disconnection is detected.
M2
Y002 The temperature measurement data
of channel 3 is outside the specified
range, or disconnection is detected.
M3
Y003 The temperature measurement data
of channel 4 is outside the specified
range, or disconnection is detected.
M4
Y004 EEPROM error in 3rd*1 adapter

M5
Y005 Averaging time setting error in 3rd*1
adapter
M6
Y006 PNK-ADP hardware error in 3rd*1
adapter

M7
Y007 PNK-ADP communication data error
in the 3rd*1 adapter

*1. "1st" for the FX3G PLC.

J-24
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-PNK-ADP (4-channel Resistance Thermometer Data Input) 4.7 Error Status

A
3. Program Example 2 (For FX3U, FX3UC Series PLC)

Common Items
D8268.0
Y000 The temperature measurement data
of channel 1 is outside the specified
D8268.1
range, or disconnection is detected. B

FX3UC-4AD
FX3U-4AD
Y001 The temperature measurement data
of channel 2 is outside the specified
range, or disconnection is detected.
D8268.2
Y002 The temperature measurement data
of channel 3 is outside the specified
D8268.3
range, or disconnection is detected. C

FX3U-4AD-ADP
Y003 The temperature measurement data
of channel 4 is outside the specified
range, or disconnection is detected.
D8268.4
Y004 EEPROM error in 1st adapter

D8268.5
D

FX3G-2AD-BD
Y005 Averaging time setting error in 1st
adapter
D8268.6
Y006 PNK-ADP hardware error in 1st
adapter

D8268.7
E

FX3U-4DA
Y007 PNK-ADP communication data error
in the 1st adapter

FX3U-4DA-ADP
G

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

J-25
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-PNK-ADP (4-channel Resistance Thermometer Data Input) 4.8 Model Code

4.8 Model Code

Initial value: K11
Numeric data type: Decimal (K)
When the PNK-ADP is connected, model code "11" will be stored in the special data register.
The following table shows the special data registers that store the model code:
• FX3U, FX3UC Series PLC

Special data register

Description
1st 2nd 3rd 4th
D8269 D8279 D8289 D8299 Model code

• FX3G Series PLC

Special data register

Description
1st 2nd
D8289 D8299 Model code

Use the above special data registers to check whether PNK-ADP is connected or not.

1. Program Example (For FX3U, FX3UC Series PLC)

FNC224 D8269 K11 Y010 Checks the model code of the 1st
LD = analog special adapter.

J-26
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-PNK-ADP (4-channel Resistance Thermometer Data Input) 4.9 Basic Program Example

A
4.9 Basic Program Example

Common Items
Create the following basic program to read out the temperature measurement data.
• For FX3G, FX3U, FX3UC Series PLC
The following program will select Pt1000 and will store the temperature measurement data (°C) of channels 1
and 2 of the 3rd*1 adapter in the D100 and the D101, respectively. The averaging time will be set to "32" for
B

FX3UC-4AD
FX3U-4AD
channel 1, and "128" for channel 2.

M8000
MOV D8288 K4M0
Normally
ON
M8002 Error status of 3rd*1 analog special
C

FX3U-4AD-ADP
RST M6 adapter
b6 = OFF (hardware error)
Initial
pulse Error status of 3rd*1 analog special
RST M7 adapter
b7 = OFF (communication data error)

MOV K4M0 D8288 D

FX3G-2AD-BD
M8001
M8280 Sets the temperature unit to
centigrade (°C)

M8281 Selects Pt1000

M8002
FNC 12 K32 D8284 Sets the averaging time to "32" for
E

FX3U-4DA
MOV channel-1 data

FNC 12 K128 D8285 Sets the averaging time to "128" for

MOV channel-2 data
M8000 Stores the current value of the
FNC 12 D8280 D100 channel-1 measurement
MOV temperature data to D100. F
Stores the current value of the

FX3U-4DA-ADP
FNC 12 D8281 D101 channel-2 measurement
MOV temperature data to D101.

Even if the temperature measurement data is not stored to D100 or D101, data registers D8280 or D8281 can
be directly used in the arithmetic operation instruction or a PID instruction.
*1. "1st" for the FX3G PLC. G

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

J-27
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-PNK-ADP (4-channel Resistance Thermometer Data Input) 4.9 Basic Program Example

• For FX3U, FX3UC Series PLC

The following program will select Pt1000 and will store the temperature measurement data (°C) of channels 1
and 2 of the 1st adapter in the D100 and the D101, respectively. The averaging time will be set to "32" for
channel 1, and "128" for channel 2.

M8002 Error status of 1st analog special

RST D8268.6 adapter
b6 = OFF (hardware error)

RST D8268.7 Error status of 1st analog special

adapter
b7 = OFF (communication data error)
M8001
M8260 Sets the temperature unit to
centigrade (°C)

M8261 Selects Pt1000

M8002
FNC 12 K32 D8264 Sets the averaging time to "32" for
MOV channel-1 data

FNC 12 K128 D8265 Sets the averaging time to "128" for

MOV channel-2 data
M8000 Stores the current value of the
FNC 12 D8260 D100 channel-1 measurement
MOV temperature data to D100.
Stores the current value of the
FNC 12 D8261 D101 channel-2 measurement
MOV temperature data to D101.

Even if the temperature measurement data is not stored to D100 or D101, data registers D8260 or D8261 can
be directly used in the arithmetic operation instruction or a PID instruction.

J-28
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Troubleshooting
FX3U-4AD-PNK-ADP (4-channel Resistance Thermometer Data Input) 5.1 PLC Version Number Check

Common Items
5. Troubleshooting
This chapter describes the troubleshooting methods and error status. B
If the temperature measurement data is not input, or if the proper digital value is not input, check the following

FX3UC-4AD
FX3U-4AD
items:
• Version number of the PLC
• Wiring
• Special devices
C
• Programs

FX3U-4AD-ADP
• Error status

5.1 PLC Version Number Check

D
• Any versions (from Ver.2.20 (initial version) to the latest version) of the FX3U Series are compatible.

FX3G-2AD-BD
• Check the version number of FX3UC Series. The version number should be 1.30 or later.
• Any versions (from Ver.1.00 (initial version) to the latest version) of the FX3G Series are compatible.
→ For a detailed description of the version number check method, refer to Section 1.3.

5.2 Wiring Check E

FX3U-4DA
Check the following items for wiring:

1. Power
The PNK-ADP needs driving power. Verify that the power supply line is properly connected. Also check that
the POWER indicator lamp of the PNK-ADP is on. F

FX3U-4DA-ADP
2. Resistance thermometer sensor cable
When using a 2-wire temperature sensor type, short-circuit the [L-] terminal and the [I-] terminal.
Separate the cable of the resistance thermometer sensor from the other power cables or areas easily affected
by inductive noise (of the commercial power, etc.).
→ For a detailed description of wiring, refer to Chapter 3.
G
5.3 Special Device Check

FX3G-1DA-BD
Check whether the special devices for the PNK-ADP are correctly used:

1. Input sensor selection

Check if the special device for type Pt1000/Ni1000 selection is correctly set. H
Turn off the device to select Pt1000. Turn on the device to select Ni1000.
FX3U-4AD-PT

2. Temperature measurement
Check if the special device of the selected channel is correctly set.
-ADP

This special device should be selected depending on the connecting position and the channel.

3. Averaging time I
Verify if the set averaging time is within the specified range. The averaging time should be set in the range
FX3U-4AD-PTW

from 1 to 4095. If the set averaging time is outside the specified range, an error occurs.

4. Error status
-ADP

Check that no error is detected in the PNK-ADP.

If an error is detected, check the details of the error, and then check the wiring and programs.
→ For a detailed description of special devices, refer to Chapter 4.
J
FX3U-4AD-PNK
-ADP

J-29
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Troubleshooting
FX3U-4AD-PNK-ADP (4-channel Resistance Thermometer Data Input) 5.4 Program Check

5.4 Program Check

Check the following items for the program:

1. Cancellation of error status at power-on

When the power is turned off and then on again, the error status should be cleared (b6 and b7 should turn off)
using the program.

2. Check of storage devices

Verify that different values are not being stored in the same device by the other parts of the programs.

5.5 Error Status Check

If an error occurs in the PNK-ADP, the corresponding bit will turn on.

Bit Description Bit Description

The temperature measurement data of
b0 channel 1 is outside the specified b5 Averaging time setting error
range, or disconnection is detected.
The temperature measurement data of
b1 channel 2 is outside the specified b6 PNK-ADP hardware error
range, or disconnection is detected.
The temperature measurement data of
b2 channel 3 is outside the specified b7 PNK-ADP communication data error
range, or disconnection is detected.
The temperature measurement data of
b3 channel 4 is outside the specified b8 Unused
range, or disconnection is detected.
b4 EEPROM error - -
To solve a problem, refer to the troubleshooting method described below:

1. Temperature measurement out of specified range or disconnection of line (b0 to b3)

1) Description of error
The input temperature measurement value is outside the specified range.
The temperature measurement value of Pt1000 is not in the range between -55°C to +256°C, or the
temperature measurement value of Ni1000 is not in the range between -45°C to +115°C.
Altematively, wiring with Pt1000 and Ni1000 is disconnected.
2) Remedy
Check that the input temperature measurement value is within the specified range.
Also check the wiring condition.

2. EEPROM error (b4)

1) Description of error
The adjustment data set in the EEPROM before delivery from our factory is unreadable or is destroyed.
2) Remedy
Please contact the nearest Mitsubishi Electric distributor office.

3. Averaging time setting error (b5)

1) Description of error
The averaging time set for one of the channels (channels 1 to 4) is outside the specified range: 1 to 4095.
2) Remedy
Check that the averaging time is correctly set for each channel.

J-30
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Troubleshooting
FX3U-4AD-PNK-ADP (4-channel Resistance Thermometer Data Input) 5.5 Error Status Check

A
4. PNK-ADP hardware error (b6)

Common Items
1) Description of error
The PNK-ADP does not operate properly.
2) Remedy
Check that the 24V DC power is properly supplied to the PNK-ADP.
Also check that the PNK-ADP is correctly connected to the PLC. B
If the problem cannot be solved even after the above check, please contact the nearest Mitsubishi

FX3UC-4AD
FX3U-4AD
Electric distributor office.

5. PNK-ADP communication data error (b7)

1) Description of error
A communication error is detected between the PNK-ADP and the PLC. C
2) Remedy

FX3U-4AD-ADP
Check that the PNK-ADP is correctly connected to the PLC.
If the problem cannot be solved even after the above check, please contact the nearest Mitsubishi
Electric distributor office.

FX3G-2AD-BD
E

FX3U-4DA
F

FX3U-4DA-ADP
G

FX3G-1DA-BD

H
FX3U-4AD-PT
-ADP

I
FX3U-4AD-PTW
-ADP

J
FX3U-4AD-PNK
-ADP

J-31
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Troubleshooting
FX3U-4AD-PNK-ADP (4-channel Resistance Thermometer Data Input) 5.5 Error Status Check

MEMO

J-32
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition
FX3U-4AD-TC-ADP (4-channel Thermocouple Data Input)

FX3U-4AD-TC
-ADP
L

PID Instruction
(FNC 88)
FX3G/FX3U/FX3UC Series Programmable
Controllers
User's Manual [Analog Control Edition]
FX3U-4AD-TC-ADP (4-channel Thermocouple Data Input)

Foreword
This manual describes the specifications, wiring, and operation methods for the FX3U-4AD-TC-ADP special
adapter (4-channel thermocouple input) and should be read and understood before attempting to install or
use the unit.
Store this manual in a safe place so that you can take it out and read it whenever necessary. Always forward
it to the end user.

This manual confers no industrial property rights or any rights of any other kind, nor does it confer any patent
licenses. Mitsubishi Electric Corporation cannot be held responsible for any problems involving industrial property
rights which may occur as a result of using the contents noted in this manual.

© 2005 MITSUBISHI ELECTRIC CORPORATION

K-1
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition
FX3U-4AD-TC-ADP (4-channel Thermocouple Data Input)

K-2
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 1 Outline
FX3U-4AD-TC-ADP (4-channel Thermocouple Data Input) 1.1 Outline of Functions

FX3U-4AD-TC
1. Outline

-ADP
This chapter describes the outline of FX3U-4AD-TC-ADP (referred to as TC-ADP). L

PID Instruction
1.1 Outline of Functions

(FNC 88)
The FX3U-4AD-TC-ADP is an analog special adapter. Connect the FX3U-4AD-TC-ADP to the FX3U/FX3UC/
FX3G Series PLC to read the data from the 4-channel thermocouple.
1) Up to 4 TC-ADP units can be connected to the FX3U/FX3UC Series PLC.
Up to 2*1 TC-ADP units can be connected to the FX3G Series PLC.
(Including other analog special adapters)
2) Thermocouple types K and J can be connected. (However, it's impossible to use both types K and J with
1 adapter.)
3) A/D conversion data will be automatically written to the special data register of the FX3U/FX3UC/FX3G
Series PLC.

System Point and section to be referred to

FX3U, FX3UC Series PLC : 4 maximum

FX3G Series PLC : 2*1 maximum Number of connectable
……
(including other analog special adapters) units
FX3U/FX3UC /FX3G Series PLC

To check the connectable

…… PLC model number, refer

+ + to Section 1.3.

Expansion
4th 3rd 2nd 1st
adapter adapter adapter adapter board*2
For a detailed
…… description of wiring,
Analog data refer to Chapter 3.

Thermocouple temperature sensor type K or J

For FX3U, FX3UC

Series PLC For a detailed description
Description Transfer direction Special devices …… of special devices, refer to
Chapter 4.
Temperature measurement 1st adapter M/D8260 to M/D8269
For a detailed description
Setting of temperature unit 2nd adapter M/D8270 to M/D8279 of a basic program, refer to
Switching of types between Section 4.9.
3rd adapter M/D8280 to M/D8289
type K and type J
Setting of averaging time 4th adapter M/D8290 to M/D8299

Refer to the system configuration shown in the User's Manual - Hardware Edition to check the number of connectable units
and to configure the entire system.

*1. Only 1 analog special adapter can be connected to the 14-point and 24-point type main unit.
*2. The expansion board is not required when connecting with the FX3UC (D, DSS) PLC.
For the FX3G Series PLC a connector conversion adapter is used.

K-3
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 1 Outline
FX3U-4AD-TC-ADP (4-channel Thermocouple Data Input) 1.2 Setup Procedure Before Starting Operation

1.2 Setup Procedure Before Starting Operation

Before starting analog input using TC-ADP, follow the procedure below to set up the system:

FX3U-4AD-TC-ADP

Refer to Chapter 1.

Outline Outline of system:

•Compatible PLC version number
•Compatible programming tool version number
Refer to Chapter 2.

Specifications check Specifications:

•Operation environment
•Performance specifications
Refer to the common •Input characteristics
pages.

System configuration and selection System configuration:

(Refer to the common pages for analog control.)
•Selection of units
Refer to Chapter 3.

Wiring Wiring:
•Selection of sensor cable
•Power supply line
Refer to Chapter 4. •Analog input line

Programming Programming:
•Details of special devices
•Examples of basic programs

If the error status data or the input analog value is

abnormal, refer to Chapter 5 "Troubleshooting."

K-4
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 1 Outline
FX3U-4AD-TC-ADP (4-channel Thermocouple Data Input) 1.3 Connectable PLC and Its Version Number

K
1.3 Connectable PLC and Its Version Number

FX3U-4AD-TC
TC-ADP is compatible with the following PLC.

-ADP
Compatible PLC Version number Date of production
FX3U Series PLC Ver. 2.20 or later After May 2005 (initial production) L

PID Instruction
FX3UC Series PLC Ver. 1.30 or later After August 2004
FX3G Series PLC Ver. 1.00 or later After June 2008 (initial production)

(FNC 88)
1. Version check
Special data register D8001 contains information for determining the PLC version number.

D8001 2 4 1 0 0
PLC type and
version number Version data (Example: Ver. 1.00)

(
PLC type Example: 24 = FX3U and FX3UC series
26 = FX3G series )
2. How to look at the manufacturer's serial number
The year and month of production of the product can be seen from the manufacturer's serial number
"SERIAL" indicated on the label adhered to the right side of the product.

Example:
FX3U-48MR/ES(production number : 570001)

Right side MITSUBISHI PROGRAMMABLE

CONTROLLER

MODEL FX3U-48MR/ES
100-240VAC 50/60Hz 40W
OUT:30VDC/240VAC 2A(COSφ=1)

SERIAL 570001

80M1 IND. CONT. EQ.

MITSUBISHI ELECTRIC CORPORATION
MADE IN JAPAN

5 7 0 0 0 1

Control number
Month (Example: 7 = July), 1 to 9 = January to September,
X = October, Y = November, Z = December
Year (Example: 5 = 2005), last digit of dominical year

1.4 Compatible Programming Tool Version Number

Use the programming tool having the following version number to create programs for TC-ADP:

Software Version number Remarks

GX Developer Ver. SW8 P or later
(Ver. 8.13P) When selecting a model, select FX3U(C)*1.
• SW D5C-GPPW-J
• SW D5C-GPPW-E (Ver. 8.72A or later) When selecting a model, select FX3G.

If a programming tool with the wrong version number is used, programming will not be possible.
*1. For Ver. 8.13P to 8.24A of GX Developer, select FX3UC for the PLC type.

K-5
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 Specifications
FX3U-4AD-TC-ADP (4-channel Thermocouple Data Input) 2.1 Generic Specifications

2. Specifications
This chapter describes the general, power supply, and performance specifications for the TC-ADP.

2.1 Generic Specifications

Item Specifications
0 to 55°C (32 to 131°F) when operating
Ambient temperature
-25 to 75°C (-13 to 167°F) when stored
Relative humidity 5 to 95%RH (no condensation) when operating
Frequency Acceleration Half amplitude
(Hz) (m/s2) (mm)
Tested 10 times in
10 - 57 - 0.035 each direction (X-, Y-,
Vibration resistance DIN Rail Mounting
57 - 150 4.9 - and Z-axis directions)
(Total: 80 min, each)
10 to 57 − 0.075
Direct Mounting*1
57 to 150 9.8 −
147 m/s2 Acceleration, Action time: 11ms, 3 times by half-sine pulse in each direction X, Y,
Shock resistance
and Z
Using noise simulator of:
Noise resistance
Noise voltage: 1,000Vp-p / Noise width: 1µs / Rise: 1ns / Cycle: 30 to 100Hz
Dielectric withstand
500 V AC, for 1 min
voltage
Between batch of all terminals and ground terminal
5MΩ or more using 500V DC
Insulation resistance
insulation resistance meter
Class D grounding (grounding resistance: 100 Ω or less)
Grounding
<Common grounding with a heavy electrical system is not allowed.>*2
Working
Free from corrosive or flammable gas and excessive conductive dusts
environment
Working altitude < 2000m*3

*1. If TC-ADP is connected to the FX3UC Series PLC, direct installation is not possible.
*2.
PLC Other PLC Other PLC Other
equipment equipment equipment

Independent grounding Shared grounding Common grounding

Best condition Good condition Not allowed

→ For a detailed description of the grounding, refer to Section 3.7.

*3. If the pressure is higher than the atmospheric pressure, do not use the TC-ADP.
The TC-ADP may malfunction.

2.2 Power Supply Specifications

Item Specifications
A/D conversion circuit 24V DC +20% -15%, 45mA
driving power (It is necessary to connect a 24V DC power supply to the terminal block.)
5V DC, 15mA
Interface driving power (Since the internal power is supplied from the FX Series main unit, it is not
necessary to supply the power.)

K-6
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 Specifications
FX3U-4AD-TC-ADP (4-channel Thermocouple Data Input) 2.3 Performance Specifications

K
2.3 Performance Specifications

FX3U-4AD-TC
-ADP
Specifications
Item
Centigrade (°C) Fahrenheit (°F) L

PID Instruction
Thermocouple type K or J
Input signal
JIS C 1602-1995

(FNC 88)
Rated temperature Type K -100°C to +1000°C Type K -148°F to +1832°F
range Type J -100°C to +600°C Type J -148°F to +1112°F
Type K -1000 to +10000 Type K -1480 to +18320
Digital output
Type J -1000 to +6000 Type J -1480 to +11120
Type K 0.4°C Type K 0.72°F
Resolution
Type J 0.3°C Type J 0.54°F
Total accuracy ±(0.5% full scale +1°C)
• FX3U/FX3UC Series PLC : 200µs (The data will be updated at every scan time.)
A/D conversion
• FX3G Series PLC : 250µs (The data will be updated at every scan time.)
time
→For a detailed description of data update, refer to Section2.4.

• Type K •Type K
+10100 +18500
+10000 +18320
+1010°C

+1850° F
-100°C 0 -148° F 0
+1000°C +1832°F
-110°C

-166° F

-1000 -1480
Input -1100 -1660
characteristics
•Type J •Type J
+6100 +11300
+6000 +11120

+1130°F
+610°C

-100°C 0 -148°F 0
+600°C +1112°F
-166°F
-110°C

-1000 -1480
-1100 -1660

• The photocoupler is used to insulate the analog input area from the PLC.
Insulation method • The DC/DC converter is used to insulate the power supply line from the analog input area.
• Channels are not insulated from each other.
Number of I/O 0 points
points occupied (This number is not related to the maximum number of input/output points of the PLC.)

K-7
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 Specifications
FX3U-4AD-TC-ADP (4-channel Thermocouple Data Input) 2.4 A/D Conversion Time

2.4 A/D Conversion Time

This section describes the A/D conversion time.

2.4.1 When connected to a FX3U, FX3UC PLC

1. A/D conversion and special data register update timing

A/D conversion is performed at every scan time of the PLC.
During execution of END instruction, the PLC performs A/D conversion, reads out the A/D converted data,
and then writes the data in the special data registers.

FX3U-4AD-TC-ADP FX3U-4AD-TC-ADP
n'th 1st FX3U/FX3UC Series PLC

Sequence
program
A/D conversion start
A/D command
conversion
Digital value writing
200 µs/4ch
A/D conversion start END instruction
A/D command
conversion
Digital value writing
200 µs/4ch

2. A/D conversion during PLC stop

Even if the PLC is stopped, A/D conversion will be performed and the special data registers will be updated.

3. If two or more analog special adapters are connected

During execution of the END instruction, data will be read out from all the connected adapters (in the order of
1st adapter → 2nd adapter…4th adapter).

4. A/D conversion speed (data update time)

During execution of the END instruction, the A/D converted data of all 4 channels will be read out in 200µs,
and the data read out will be written to the special data registers.
END instruction execution time will be "200µs × number of connected adapters."

K-8
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 Specifications
FX3U-4AD-TC-ADP (4-channel Thermocouple Data Input) 2.5 Temperature Measurement

K
2.4.2 When connected to a FX3G PLC

FX3U-4AD-TC
1. A/D conversion and special data register update timing

-ADP
A/D conversion is performed at every scan time of the PLC.
During execution of END instruction, the PLC performs A/D conversion, reads out the A/D converted data,
and then writes the data in the special data registers. L

PID Instruction
FX3U-4AD-TC-ADP FX3U-4AD-TC-ADP
FX3G Series PLC

(FNC 88)
2nd 1st

Sequence
program
A/D conversion start
A/D command
conversion
Digital value writing
250 µs/4ch
A/D conversion start END instruction
A/D command
conversion
Digital value writing
250 µs/4ch

2. A/D conversion during PLC stop

Even if the PLC is stopped, A/D conversion will be performed and the special data registers will be updated.

3. If two analog special adapters are connected

During execution of the END instruction, data will be read out from all the connected adapters (in the order of
1st adapter → 2nd adapter).

4. A/D conversion speed (data update time)

During execution of the END instruction, the A/D converted data of all 4 channels will be read out in 250µs,
and the data read out will be written to the special data registers.
END instruction execution time will be "250µs × number of connected adapters."

2.5 Temperature Measurement

To stabilize the temperature measurement, warm-up the system for 30 minutes or more after power-on.

K-9
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3U-4AD-TC-ADP (4-channel Thermocouple Data Input)

3. Wiring
This chapter describes the TC-ADP wiring.
Observe the following caution to wire the TC-ADP.

WIRING PRECAUTIONS

• Make sure to cut off all phases of the power supply externally before attempting wiring work.
Failure to do so may cause electric shock or damages to the product.

WIRING PRECAUTIONS

• Connect the DC power supply wiring to the dedicated terminals described in this manual.
If an AC power supply is connected to a DC input/output terminal or DC power supply terminal, the PLC will be
burnt out.
• Do not wire vacant terminals externally.
Doing so may damage the product.
• Perform class D grounding (grounding resistance: 100Ω or less) to the grounding terminal on the main unit.
Do not use common grounding with heavy electrical systems.
• When drilling screw holes or wiring, make sure cutting or wire debris does not enter the ventilation slits.
Failure to do so may cause fire, equipment failures or malfunctions.
• Make sure to observe the following precautions in order to prevent malfunctions under the influence of noise:
- Do not bundle the power line or twisted shielded cable together with or lay it close to the main circuit, high-
voltage line, or load line.
Otherwise, noise disturbance and/or surge induction are likely to take place. As a guideline, lay the control line
at least 100mm (3.94") or more away from the main circuit, high-voltage line, or load line.
- Ground the shield of the analog input/output cable at one point on the signal receiving side.
However, do not use common grounding with heavy electrical systems.
• Make sure to properly wire to the European terminal board in accordance with the following precautions.
Failure to do so may cause electric shock, a short-circuit, wire breakage, or damage to the product.
- The disposal size of the cable end should be 9 mm (0.35").
- Tightening torque should be between 0.22 to 0.25 N•m.
- Twist the end of strand wire and make sure there are no loose wires.
- Do not solder-plate the electric wire ends.
- Do not connect more than the specified number of wires or electric wires of unspecified size.
- Affix the electric wires so that neither the terminal block nor the connected parts are directly stressed.

K-10
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3U-4AD-TC-ADP (4-channel Thermocouple Data Input) 3.1 Terminal Layout

K
3.1 Terminal Layout

FX3U-4AD-TC
The terminals of the TC-ADP are arranged as follows:

-ADP
L

PID Instruction
(FNC 88)
FX3U-4AD-TC
-ADP
POWER

Signal Application
24+
24+

External power
24-
24-

Ground terminal
• Unused
• •

• (Do not connect any lines.)

J-type J-type

J-type Switches the type between

J-type type K and type J.
L1+

L1+ Channel-1 thermocouple

sensor input
L1-

L1-
L2+

L2+ Channel-2 thermocouple

L2- sensor input
L2-

L3+ Channel-3 thermocouple

L3+

L3- sensor input

L3-

L4+ Channel-4 thermocouple

L4+

L4- sensor input

I4-

K-11
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3U-4AD-TC-ADP (4-channel Thermocouple Data Input) 3.2 Applicable Cables and Terminal Tightening Torque

3.2 Applicable Cables and Terminal Tightening Torque

Use the following cables to connect with the counterpart equipment. Terminate the cable end as shown below.

1. Cables
Applicable cable and tightening torque
Wire size Tightening
Termination
(stranded/single-wire) torque
0.3 mm2 to 0.5 mm2 • To connect a stranded cable, peel the cover off the cable
Single-wire and then twist the core before connection.
(AWG22 to 20)
• To connect a single-wire cable, just strip the cover off the
2-wire 0.3mm2(AWG22) cable before connection.
0.22 N•m to • Rod terminal with insulation sleeve
Rod terminal 0.3 mm2 to 0.5 mm2 0.25 N•m (recommended terminal)
with (AWG22-20) AI 0.5-8WH : Manufactured by Phoenix Contact
insulation (Refer to the rod terminal
• Caulking tool
sleeve external view shown in the
CRIMPFOX ZA 3 : Manufactured by Phoenix Contact
following figure.)
(or CRIMPFOX UD 6 : Manufactured by Phoenix Contact)

2. Termination of cable end

To terminate the cable, treat the stranded/single wire directly or use a rod terminal with insulation sleeve.
• To directly terminate the end of a stranded/single-wire cable: Termination of cable end
- Twist the end of the stranded cable so that the "barbed wires"
cannot protrude.
- Do not solder-plate the end of the cable.
9mm
(0.35")
• To terminate cable end using a rod terminal with insulation sleeve:
If the cable cover is too thick, it may be difficult to insert the cable into Insulation sleeve Contact area
(Crimp area)
the insulation sleeve. For this reason, select an appropriate cable while
referring to the external view.
8mm (0.31")
Manufacturer Model Caulking tool 2.6mm 14mm
CRIMPFOX ZA 3 (0.1")
Phoenix Contact AI 0.5-8WH (0.55")
(or CRIMPFOX UD 6)

3. Tool
• To tighten terminals, use a small-sized screwdriver whose head is straight and is not widened as shown in
the figure to the right.

Note:
If the diameter of screwdriver grip is too small, tightening torque will not
The head
be able to be achieved. Use the following recommended screwdriver or should be
an appropriate replacement (grip diameter: approximately 25mm). straight.
Manufacturer Model
Phoenix Contact SZS 0.4×2.5 0.4mm 2.5mm
(0.01") (0.09")

K-12
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3U-4AD-TC-ADP (4-channel Thermocouple Data Input) 3.3 Power Supply Line

K
3.3 Power Supply Line

FX3U-4AD-TC
Connect the 24V DC power supply line of the TC-ADP to the 24+ and 24- terminals of the terminal block.

-ADP
3.3.1 To connect to FX3G, FX3U Series PLC
L

PID Instruction
1. To use an external power 2. To use the 24V DC power of the PLC

(FNC 88)
TC-ADP FX3G/FX3U TC-ADP FX3G/FX3U
Series PLC Series PLC
+5V (Main unit) +5V
(Main unit)

24- 24+ 24- 24+ 0V 24V

Terminal Terminal
block block

Class-D Class-D
24V DC grounding grounding

Caution regarding connection of the power supply line:

• Ground the " " terminal to a class-D grounding power supply line (100Ω or less) together with the
grounding terminal of the PLC main unit.
• For the timing of power-on/off when using an external power supply, see the following manual of the PLC
to be connected.
→ Refer to the FX3G Series User's Manual - Hardware Edition.
→ Refer to the FX3U Series User's Manual - Hardware Edition.

3.3.2 To connect to the FX3UC Series PLC

TC-ADP FX2NC
FX3UC Series PLC Series PLC
+5V (Main unit) (Input extension
block)

Power
Power Power crossover
connector connector connector

24- 24+ 24- 24+ 24- 24+ 24- 24+

Terminal Black Red Green Black Red
block

Class-D
24V DC grounding

Cautions regarding connection of the power supply line:

• For the 24V DC power supply line, be sure to use the same power as the FX3UC Series PLC.
• Ground the " " terminal to a class-D grounding power supply line (100Ω or less) together with the
ground terminal of the PLC main unit.

K-13
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3U-4AD-TC-ADP (4-channel Thermocouple Data Input) 3.4 Selection of the Thermocouple

3.4 Selection of the Thermocouple

3.4.1 Thermocouple type

• There are 2 types of thermocouples: K type and J type. When selecting the thermocouple type, make sure
that the same type of thermocouple is connection to all the channels.
• Be sure to use a non-grounded thermocouple type.

3.4.2 Compensating lead wire

To connect the thermocouple, use one of the following types of compensating lead wires:

Thermocouple Type of compensating lead wire

Type K KX,KCA,KCB,KCC
Type J JX

• The compensating lead wire indicates a temperature value of approximately 0.12°C higher than that of the
wire resistor (10Ω). Use the appropriate compensating lead wire when considering this difference.
• If the compensating lead wire is very long, the wire may be easily affected by noise, etc. It is, therefore,
recommended for the length of the compensating lead wire to be 100 m or less.

3.5 Wiring of Thermocouple

Wiring depends on the thermocouple type selected. Refer to the following wiring diagrams:

3.5.1 Wiring of thermocouple type K

Terminal block TC-ADP

Type J
OPEN*1
Type J
Temperature
compensating circuit
Thermocouple Compensating
type K*2 lead wire 3kΩ
L + ch
L -

Shield
Temperature
compensating circuit
3kΩ ch
L +
L -
+5V
24+
24V DC
24-

Class-D
grounding

L +, L -, ch : represents the channel number.

*1. It is not necessary to connect lines to the J-type terminals. Leave these terminals disconnected.
*2. Keep the thermocouple away from inductive noise (commercial power, etc.).

K-14
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Wiring
FX3U-4AD-TC-ADP (4-channel Thermocouple Data Input) 3.6 Caution Regarding Wiring

K
3.5.2 Wiring of the thermocouple type J

FX3U-4AD-TC
Terminal block

-ADP
TC-ADP
type J
*1
Thermocouple Compensating
type J Temperature
compensating circuit L
type J*2 lead wire

PID Instruction
3kΩ ch
L +
L -

(FNC 88)
Shield
Temperature
compensating circuit
3kΩ
L + ch
L -
+5V

24+
24V DC
24-

Class-D
grounding

L +, L -, ch : represents the channel number.

*1. To use a J thermocouple type, be sure to connect the thermocouple to these terminals. In addition,
select J type by turning on the type K/J selection special auxiliary relay.
*2. Keep the thermocouple away from inductive noise (commercial power, etc.).

3.6 Caution Regarding Wiring

• It is not possible to connect different types of thermocouples to 4 channels of TC-ADP. Be sure to use the
same type of thermocouple for all the channels.
• TC-ADP is not insulated between the channels. For this reason, be sure to use a non-grounded type
thermocouple.
• Be sure not to connect to the terminal "•".

3.7 Grounding
Grounding should be performed as stated below.
• The grounding resistance should be 100Ω or less.
• Independent grounding should be performed for best results.
When independent grounding is not performed, perform "shared grounding" as shown in the following
figure.
→ For details, refer to the User’s Manual - Hardware Edition of the PLC Series.

PLC Other PLC Other PLC Other

equipment equipment equipment

Independent grounding Shared grounding Common grounding

Best condition Good condition Not allowed

• The grounding wire size should be AWG22 to 20 (0.3 to 0.5 mm2).

• The grounding point should be close to the PLC, and all grounding wires should be as short as possible.

K-15
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-TC-ADP (4-channel Thermocouple Data Input) 4.1 Loading of A/D Conversion Data

4. Programming
This chapter describes how to create programs that can read out the analog data using the TC-ADP.

4.1 Loading of A/D Conversion Data

1) The input analog data will be converted into digital data and then stored in the special devices of the
FX3U/FX3UC/FX3G Series PLC.
2) If data is stored in the special devices, the averaging time can be set, and the input mode can be
specified.
3) Special auxiliary relays (10 points) and special data registers (10 points) are assigned automatically
starting from the adapter nearest to the main unit.
→ For a detailed description of special device assignment, refer to Subsection 4.2.
• FX3U, FX3UC Series PLC
Communi- High-speed
cation input/output
FX3U-4AD FX3U-4AD FX3U-4AD special FX3U -4AD special
-TC-ADP -TC-ADP -TC-ADP adapter -TC-ADP adapter FX3U/FX3UC Series PLC

4th 3rd 2nd 1st Special devices

Special auxiliary relays:
M8260 to M8269
A/D Special data registers:
D8260 to D8269

Special auxiliary relays:

M8270 to M8279
A/D Special data registers:
D8270 to D8279
Sequence
program
Special auxiliary relays:
M8280 to M8289
A/D Special data registers:
D8280 to D8289

Special auxiliary relays:

M8290 to M8299
A/D Special data registers:
D8290 to D8299

The analog special adapter nearest to the main unit is counted as the 1st analog special adapter, and the
next adapter as the 2nd analog special adapter, and so on. However, in this case, do not include the high-
speed input/output special adapter and the communication special adapter.

K-16
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-TC-ADP (4-channel Thermocouple Data Input) 4.1 Loading of A/D Conversion Data

K
• FX3G Series PLC

FX3U-4AD-TC
Communi-
cation Connector
FX3U-4AD FX3U-4AD

-ADP
special conversion
-TC-ADP -TC-ADP
adapter adapter FX3G Series PLC

2nd*1 1st
Special devices
L

PID Instruction
Special auxiliary relays:
M8280 to M8289

(FNC 88)
A/D Special data registers:
D8280 to D8289 Sequence
Program
Special auxiliary relays:
M8290 to M8299
A/D Special data registers:
D8290 to D8299

The analog special adapter nearest to the main unit is counted as the 1st analog special adapter, and the
next adapter as the 2nd analog special adapter. However, in this case, do not include the connector
conversion adapter and the communication special adapter.
*1. The second special adapter is not available in the 14-point and 24-point type main unit.

K-17
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-TC-ADP (4-channel Thermocouple Data Input) 4.2 List of Special Devices

4.2 List of Special Devices

If TC-ADP is connected, special devices will be assigned automatically as shown in the following table:
• FX3U, FX3UC Series PLC
R: Read / W: Write
Special Device number
Description Attribute Refer to
device 1st 2nd 3rd 4th
Section
M8260 M8270 M8280 M8290 Selects the temperature unit R/W
4.3
Special
Switches the thermocouple type Section
auxiliary M8261 M8271 M8281 M8291 R/W
between type K and type J 4.4
relay
M8262 to M8272 to M8282 to M8292 to
Unused (Do not use.) - -
M8269 M8279 M8289 M8299
Channel-1 temperature measurement
D8260 D8270 D8280 D8290 R
data
Channel-2 temperature measurement
D8261 D8271 D8281 D8291 R
data Section
Channel-3 temperature measurement 4.5
D8262 D8272 D8282 D8292 R
data
Channel-4 temperature measurement
D8263 D8273 D8283 D8293 R
data
Averaging time for channel 1
Special D8264 D8274 D8284 D8294 R/W
(Setting range: 1 to 4095)
data
register Averaging time for channel 2
D8265 D8275 D8285 D8295 R/W
(Setting range: 1 to 4095) Section
Averaging time for channel 3 4.6
D8266 D8276 D8286 D8296 R/W
(Setting range: 1 to 4095)
Averaging time for channel 4
D8267 D8277 D8287 D8297 R/W
(Setting range: 1 to 4095)
Section
D8268 D8278 D8288 D8298 Error status R/W
4.7
Section
D8269 D8279 D8289 D8299 Model code = 10 R
4.8

K-18
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-TC-ADP (4-channel Thermocouple Data Input) 4.3 Selection of Temperature Unit

K
• FX3G Series PLC

FX3U-4AD-TC
R: Read / W: Write
Device number
Special device Description Attribute Refer to

-ADP
1st 2nd
M8280 M8290 Selects the temperature unit R/W Section 4.3
Switches the thermocouple type
L
M8281 M8291 R/W Section 4.4

PID Instruction
Special auxiliary relay between type K and type J
M8282 to M8292 to

(FNC 88)
Unused (Do not use.) - -
M8289 M8299
Channel-1 temperature measurement
D8280 D8290 R
data
Channel-2 temperature measurement
D8281 D8291 R
data
Section 4.5
Channel-3 temperature measurement
D8282 D8292 R
data
Channel-4 temperature measurement
D8283 D8293 R
data
Averaging time for channel 1
Special data register D8284 D8294 R/W
(Setting range: 1 to 4095)
Averaging time for channel 2
D8285 D8295 R/W
(Setting range: 1 to 4095)
Section 4.6
Averaging time for channel 3
D8286 D8296 R/W
(Setting range: 1 to 4095)
Averaging time for channel 4
D8287 D8297 R/W
(Setting range: 1 to 4095)
D8288 D8298 Error status R/W Section 4.7
D8289 D8299 Model code = 10 R Section 4.8

4.3 Selection of Temperature Unit

The state of special auxiliary relays decides the TC-ADP's temperature unit as shown in the table below.
To switch the temperature unit, use the following special auxiliary relays:
• FX3U, FX3UC Series PLC

Special auxiliary relay

Description
1st 2nd 3rd 4th
Selection of temperature unit:
M8260 M8270 M8280 M8290 OFF: Centigrade (°C)
ON: Fahrenheit (°F)

• FX3G Series PLC

Special auxiliary relay
Description
1st 2nd
Selection of temperature unit:
M8280 M8290 OFF: Centigrade (°C)
ON: Fahrenheit (°F)

1. Program Example (For FX3U, FX3UC Series PLC)

1)To switch the temperature unit to 2) To switch the temperature unit to
centigrade (°C) for the 1st adapter: Fahrenheit (°F) for the 2nd adapter:
M8001 M8000
M8260 M8270
Normally OFF Normally ON

K-19
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-TC-ADP (4-channel Thermocouple Data Input) 4.4 Selection of Type K or J

4.4 Selection of Type K or J

Turn on the J type or off the K type selection special auxiliary relay to select the thermocouple type J or K for
TC-ADP.
The thermocouple type will be selected for all the channels at the same time.
To select the thermocouple type, use the following special auxiliary relays:
• FX3U, FX3UC Series PLC

Special auxiliary relay

Description
1st 2nd 3rd 4th
Selection of type K or J:
M8261 M8271 M8281 M8291 OFF: Type K
ON: Type J

• FX3G Series PLC

Special auxiliary relay

Description
1st 2nd
Selection of type K or J:
M8281 M8291 OFF: Type K
ON: Type J

1. Program Example (For FX3U, FX3UC Series PLC)

1) To select thermocouple type K for the 2)To select thermocouple type J for the
1st adapter: 2nd adapter :
M8001 M8000
M8261 M8271
Normally OFF Normally ON

K-20
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-TC-ADP (4-channel Thermocouple Data Input) 4.5 Temperature Measurement

K
4.5 Temperature Measurement

FX3U-4AD-TC
The temperature data input in the TC-ADP will be stored in the special data registers.

-ADP
The special data registers that store the temperature data are shown in the following table:
• FX3U, FX3UC Series PLC
L
Special data register

PID Instruction
Description
1st 2nd 3rd 4th

(FNC 88)
D8260 D8270 D8280 D8290 Stores the channel-1 temperature measurement data.
D8261 D8271 D8281 D8291 Stores the channel-2 temperature measurement data.
D8262 D8272 D8282 D8292 Stores the channel-3 temperature measurement data.
D8263 D8273 D8283 D8293 Stores the channel-4 temperature measurement data.

• FX3G Series PLC

Special data register

Description
1st 2nd
D8280 D8290 Stores the channel-1 temperature measurement data.
D8281 D8291 Stores the channel-2 temperature measurement data.
D8282 D8292 Stores the channel-3 temperature measurement data.
D8283 D8293 Stores the channel-4 temperature measurement data.

The immediate data or the average data (data averaged in accordance with the specified averaging time) will
be stored in the above data registers as the temperature measurement data.
→ For a detailed description of the averaging time, refer to Section 4.6.

1. Caution regarding temperature measurement

The temperature measurement data are for reading only.
Do not change (rewrite) the current data using the sequence program, indicator, or device monitor of the
programming tool.

2. Program Example (For FX3U, FX3UC Series PLC)

M8000
FNC 12 D8260 D100 Stores the channel-1 temperature measurement data
MOV of the 1st analog special adapter in the D100.
Normally
ON

FNC 12 Stores the channel-2 temperature measurement data

D8261 D101 of the 1st analog special adapter in the D101.
MOV

Even if the temperature measurement data is not stored in D100 or D101, data registers D8260 or D8261 can
be directly used in the arithmetic operation instruction or a PID instruction.

K-21
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-TC-ADP (4-channel Thermocouple Data Input) 4.6 Averaging Time

4.6 Averaging Time

Setting range: 1 to 4095
Initial value: K64
Numeric data type: Decimal (K)
If the averaging time is set for the TC-ADP, the averaged temperature measurement data will be stored in the
D8260 to D8263, D8270 to D8273, D8280 to D8283, and D8290 to D8293. The averaging time can be set for
each channel.
Set the averaging time in the following special data registers:
• FX3U, FX3UC Series PLC

Special data register

Description
1st 2nd 3rd 4th
D8264 D8274 D8284 D8294 Averaging time for channel-1 data
D8265 D8275 D8285 D8295 Averaging time for channel-2 data
D8266 D8276 D8286 D8296 Averaging time for channel-3 data
D8267 D8277 D8287 D8297 Averaging time for channel-4 data

• FX3G Series PLC

Special data register

Description
1st 2nd
D8284 D8294 Averaging time for channel-1 data
D8285 D8295 Averaging time for channel-2 data
D8286 D8296 Averaging time for channel-3 data
D8287 D8297 Averaging time for channel-4 data

1. Cautions regarding averaging time setting

• If the averaging time is set to "1", the immediate data will be stored in the temperature measurement
special data register.
• If the averaging time is set to "2" or more, the average value will be calculated in accordance with the set
averaging time, and the average value obtained will be stored in the temperature measurement special
data register.
• After turning the PLC power on, the average data will be stored in the temperature measurement special
data registers (D8260 to D8263, D8270 to D8273, D8280 to D8283, and D8290 to D8293) until the number
of data items is increased to the set averaging time.
• Set the averaging time in the range from 1 to 4095. If the set value is outside the setting range, the error
signal will be output.
→ For a detailed description of error status, refer to Section 5.5

2. Program Example (For FX3U, FX3UC Series PLC)

M8000
FNC 12 K32 D8264 Sets the averaging time to "32" for the channel-1
MOV data of the 1st analog special adapter.
Normally
ON

FNC 12 K128 D8265 Sets the averaging time to "128" for the channel-2
MOV data of the 1st analog special adapter.

K-22
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-TC-ADP (4-channel Thermocouple Data Input) 4.7 Error Status

K
4.7 Error Status

FX3U-4AD-TC
If an error is detected on TC-ADP, the error status data will be stored in the corresponding special data

-ADP
register.
The following table shows the special data registers that store the error status data:
• FX3U, FX3UC Series PLC L

PID Instruction
Special data register
Description

(FNC 88)
1st 2nd 3rd 4th
D8268 D8278 D8288 D8298 Stores the error status data.

• FX3G Series PLC

Special data register

Description
1st 2nd
D8288 D8298 Stores the error status data.

Check the ON/OFF status of each bit of the error status data register to determine the error. Errors are
assigned to the bits as shown in the following table. Create a program to detect errors.

Bit Description Bit Description

The temperature measurement data
b0 of channel 1 is outside the specified b5 Averaging time setting error
range, or disconnection is detected.
The temperature measurement data
b1 of channel 2 is outside the specified b6 TC-ADP hardware error
range, or disconnection is detected.
The temperature measurement data
b2 of channel 3 is outside the specified b7 TC-ADP communication data error
range, or disconnection is detected.
The temperature measurement data
b3 of channel 4 is outside the specified b8 to b15 Unused
range, or disconnection is detected.
b4 EEPROM error - -

1. Caution regarding use of error status data

If a TC-ADP hardware error (b6) or TC-ADP communication data error (b7) is once detected, it is necessary
to clear the error status with a program at next power-on of the PLC.
For this reason, be sure to create the following program:
• For FX3G, FX3U, FX3UC Series PLC

M8000
MOV D8288 K4M0
Normally
ON
M8002 Error status in the 3rd*1 analog special adapter
RST M6 b6 = OFF (hardware error)
Initial pulse

RST M7 Error status in the 3rd*1 analog special adapter

b7 = OFF (communication data error)

MOV K4M0 D8288

*1. "1st" for the FX3G PLC.

K-23
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-TC-ADP (4-channel Thermocouple Data Input) 4.7 Error Status

• For FX3U, FX3UC Series PLC

M8002 Error status in the 1st analog special adapter

RST D8268.6 b6 = OFF (hardware error)
Initial pulse

RST D8268.7 Error status in the 1st analog special adapter

b7 = OFF (communication data error)

2. Program Example 1 (For FX3G, FX3U, FX3UC Series PLC)

M8000
MOV D8288 K4M0

M0
Y000 The temperature measurement data
of channel 1 is outside the specified
range, or disconnection is detected.
M1
Y001 The temperature measurement data
of channel 2 is outside the specified
range, or disconnection is detected.
M2
Y002 The temperature measurement data
of channel 3 is outside the specified
range, or disconnection is detected.
M3
Y003 The temperature measurement data
of channel 4 is outside the specified
range, or disconnection is detected.
M4
Y004 EEPROM error in 3rd*1 adapter

M5
Y005 Averaging time setting error in 3rd*1
adapter
M6
Y006 TC-ADP hardware error in 3rd*1
adapter

M7
Y007 TC-ADP communication data error
in the 3rd*1 adapter

*1. "1st" for the FX3G PLC.

K-24
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-TC-ADP (4-channel Thermocouple Data Input) 4.7 Error Status

K
3. Program Example 2 (For FX3U, FX3UC Series PLC)

FX3U-4AD-TC
D8268.0

-ADP
Y000 The temperature measurement data
of channel 1 is outside the specified
D8268.1
range, or disconnection is detected. L

PID Instruction
Y001 The temperature measurement data
of channel 2 is outside the specified

(FNC 88)
range, or disconnection is detected.
D8268.2
Y002 The temperature measurement data
of channel 3 is outside the specified
range, or disconnection is detected.
D8268.3
Y003 The temperature measurement data
of channel 4 is outside the specified
range, or disconnection is detected.
D8268.4
Y004 EEPROM error in 1st adapter

D8268.5
Y005 Averaging time setting error in 1st
adapter
D8268.6
Y006 TC-ADP hardware error in 1st
adapter

D8268.7
Y007 TC-ADP communication data error
in the 1st adapter

K-25
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-TC-ADP (4-channel Thermocouple Data Input) 4.8 Model Code

4.8 Model Code

Initial value: K10
Numeric data type: Decimal (K)
When the TC-ADP is connected, model code "10" will be stored in the special data register.
The following table shows the special data registers that store the model code:
• FX3U, FX3UC Series PLC

Special data register

Description
1st 2nd 3rd 4th
D8269 D8279 D8289 D8299 Model code

• FX3G Series PLC

Special data register

Description
1st 2nd
D8289 D8299 Model code

Use the above special data registers to check whether TC-ADP is connected or not.

1. Program Example (For FX3U, FX3UC Series PLC)

FNC224 D8269 K10 Y010 Checks the model code of the 1st
LD = analog special adapter.

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-TC-ADP (4-channel Thermocouple Data Input) 4.9 Basic Program Example

K
4.9 Basic Program Example

FX3U-4AD-TC
Create the following basic program to read out the temperature measurement data.

-ADP
• For FX3G, FX3U, FX3UC Series PLCs
The following program will select thermocouple type K and will store the temperature measurement data (°C)
of channels 1 and 2 of the 3rd*1 adapter in the D100 and the D101, respectively. The averaging time will be
L

PID Instruction
set to "32" for channel 1, and "128" for channel 2.

(FNC 88)
M8000
MOV D8288 K4M0
Normally
ON
M8002 Error status of 3rd*1 analog special
RST M6 adapter
b6 = OFF (hardware error)
Initial
pulse Error status of 3rd*1 analog special
RST M7 adapter
b7 = OFF (communication data error)

MOV K4M0 D8288

M8001
M8280 Sets the temperature unit to
centigrade (°C)

M8281 Selects thermocouple type K

M8002
FNC 12 K32 D8284 Sets the averaging time to "32" for
MOV channel-1 data

FNC 12 K128 D8285 Sets the averaging time to "128" for

MOV channel-2 data
M8000 Stores the current value of the
FNC 12 D8280 D100 channel-1 measurement
MOV temperature data to D100.
Stores the current value of the
FNC 12 D8281 D101 channel-2 measurement
MOV temperature data to D101.

Even if the temperature measurement data is not stored to D100 or D101, data registers D8280 or D8281 can
be directly used in the arithmetic operation instruction or a PID instruction.
*1. "1st" for the FX3G PLC.

K-27
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Programming
FX3U-4AD-TC-ADP (4-channel Thermocouple Data Input) 4.9 Basic Program Example

• For FX3U, FX3UC Series PLC

The following program will select thermocouple type K and will store the temperature measurement data (°C)
of channels 1 and 2 of the 1st adapter in the D100 and the D101, respectively. The averaging time will be set
to "32" for channel 1, and "128" for channel 2.

M8002 Error status of 1st analog special

RST D8268.6 adapter
b6 = OFF (hardware error)

RST D8268.7 Error status of 1st analog special

adapter
b7 = OFF (communication data error)
M8001
M8260 Sets the temperature unit to
centigrade (°C)

M8261 Selects thermocouple type K

M8002
FNC 12 K32 D8264 Sets the averaging time to "32" for
MOV channel-1 data

FNC 12 K128 D8265 Sets the averaging time to "128" for

MOV channel-2 data
M8000 Stores the current value of the
FNC 12 D8260 D100 channel-1 measurement
MOV temperature data to D100.
Stores the current value of the
FNC 12 D8261 D101 channel-2 measurement
MOV temperature data to D101.

Even if the temperature measurement data is not stored to D100 or D101, data registers D8260 or D8261 can
be directly used in the arithmetic operation instruction or a PID instruction.

K-28
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Troubleshooting
FX3U-4AD-TC-ADP (4-channel Thermocouple Data Input) 5.1 PLC Version Number Check

FX3U-4AD-TC
5. Troubleshooting

-ADP
This chapter describes the troubleshooting methods and error status. L
If the temperature measurement data is not input, or if the proper digital value is not input, check the following

PID Instruction
items:

(FNC 88)
• Version number of the PLC
• Wiring
• Special devices
• Programs
• Error status

5.1 PLC Version Number Check

• Any versions (from Ver.2.20 (initial version) to the latest version) of the FX3U Series are compatible.
• Check the version number of FX3UC Series. The version number should be 1.30 or later.
• Any versions (from Ver.1.00 (initial version) to the latest version) of the FX3G Series are compatible.
→ For a detailed description of the version number check method, refer to Section 1.3.

5.2 Wiring Check

Check the following items for wiring:

1. Power
The TC-ADP needs driving power. Verify that the power supply line is properly connected. Also check that the
POWER indicator lamp of the TC-ADP is on.

2. Thermocouple cable
Use a non-grounded type thermocouple and connect the thermocouple using the compensating lead wire.
In addition, separate the cable of the thermocouple from the other power cables or inductive cables.

3. To use thermocouple type J

To use thermocouple type J, shortcircuit the J-type terminals. If these terminals are not shortcircuited, the
temperature measurement data cannot be read out correctly.
→ For a detailed description of wiring, refer to Chapter 3.

5.3 Special Device Check

Check whether the special devices for the TC-ADP are correctly used:

1. Selection of type K or J
Check if the special device for type K/J selection is correctly set.
Turn off the device to select thermocouple type K. Turn on the device to select thermocouple type J.

2. Temperature measurement
Check if the special device of the selected channel is correctly set.
This special device should be selected depending on the connecting position and the channel.

3. Averaging time
Verify if the set averaging time is within the specified range. The averaging time should be set in the range
from 1 to 4095. If the set averaging time is outside the specified range, an error occurs.

4. Error status
Check that no error is detected in the TC-ADP.
If an error is detected, check the details of the error, and then check the wiring and programs.
→ For a detailed description of special devices, refer to Chapter 4.

K-29
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Troubleshooting
FX3U-4AD-TC-ADP (4-channel Thermocouple Data Input) 5.4 Program Check

5.4 Program Check

Check the following items for the program:

1. Cancellation of error status at power-on

When the power is turned off and then on again, the error status should be cleared (the b6 and the b7 should
turn off) using the program.

2. Check of storage devices

Verify that different values are not being stored in the same device by the other parts of the programs.

5.5 Error Status Check

If an error occurs in the TC-ADP, the corresponding bit will turn on.

Bit Description Bit Description

The temperature measurement data of
b0 channel 1 is outside the specified b5 Averaging time setting error
range, or disconnection is detected.
The temperature measurement data of
b1 channel 2 is outside the specified b6 TC-ADP hardware error
range, or disconnection is detected.
The temperature measurement data of
b2 channel 3 is outside the specified b7 TC-ADP communication data error
range, or disconnection is detected.
The temperature measurement data of
b3 channel 4 is outside the specified b8 to b15 Unused
range, or disconnection is detected.
b4 EEPROM error - -
To solve a problem, refer to the troubleshooting method described below:

1. Temperature measurement out of specified range or disconnection of line (b0 to b3)

1) Description of error
The input temperature measurement value is outside the specified range.
The temperature measurement value of thermocouple type K is not in the range between -110°C to
+1010°C, or the temperature measurement value of thermocouple type J is not in the range between
-110°C to +610°C.
Or the line between TC-ADP and the thermocouple is disconnected.
2) Remedy
Check that the input temperature measurement value is within the specified range.
Also check the wiring condition.

2. EEPROM error (b4)

1) Description of error
The adjustment data set in the EEPROM before delivery from our factory is unreadable or is destroyed.
2) Remedy
Please contact the nearest Mitsubishi Electric distributor office.

3. Averaging time setting error (b5)

1) Description of error
The averaging time set for one of the channels (channels 1 to 4) is outside the specified range: 1 to 4095.
2) Remedy
Check that the averaging time is correctly set for each channel.

K-30
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Troubleshooting
FX3U-4AD-TC-ADP (4-channel Thermocouple Data Input) 5.5 Error Status Check

K
4. TC-ADP hardware error (b6)

FX3U-4AD-TC
1) Description of error
The TC-ADP does not operate properly.

-ADP
2) Remedy
Check that the 24V DC power is properly supplied to the TC-ADP.
Also check that the TC-ADP is correctly connected to the PLC. L
If the problem cannot be solved even after the above check, please contact the nearest Mitsubishi

PID Instruction
Electric distributor office.

(FNC 88)
5. TC-ADP communication data error (b7)
1) Description of error
A communication error is detected between the TC-ADP and the PLC.
2) Remedy
Check that the TC-ADP is correctly connected to the PLC.
If the problem cannot be solved even after the above check, please contact the nearest Mitsubishi
Electric distributor office.

K-31
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Troubleshooting
FX3U-4AD-TC-ADP (4-channel Thermocouple Data Input) 5.5 Error Status Check

MEMO

K-32
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition
PID Instruction (FNC 88)

FX3U-4AD-TC
-ADP
L

PID Instruction
(FNC 88)
FX3G/FX3U/FX3UC Series Programmable
Controllers
User's Manual [Analog Control Edition]
PID Instruction (FNC 88)

Foreword
This manual describes the control methods for using the PID instruction in combination with analog products
and should be read and understood before attempting to install or use the unit.
Store this manual in a safe place so that you can take it out and read it whenever necessary. Always forward
it to the end user.

This manual confers no industrial property rights or any rights of any other kind, nor does it confer any patent
licenses. Mitsubishi Electric Corporation cannot be held responsible for any problems involving industrial property
rights which may occur as a result of using the contents noted in this manual.

© 2005 MITSUBISHI ELECTRIC CORPORATION

L-1
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition
PID Instruction (FNC 88)

L-2
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 1 Outline
PID Instruction (FNC 88) 1.1 Outline of function

FX3U-4AD-TC
1. Outline

-ADP
This chapter describes the outline of PID instruction (FNC88) for the FX3U/FX3UC/FX3G Series PLC. L

PID Instruction
1.1 Outline of function

(FNC 88)
The PID instruction requires the system to calculate the output (MV) value from the measured (PV) value.
Through combining the P (proportional) action, I (integral) action, and D (derivative) action the target (SV)
value can be obtained. See diagram below.
1) Alarm output function
The alarm function can be set for input variation (measured value) or output variation (value).
2) Setting limit values
The upper limit and lower limit can be set for the output value.
3) Auto-tuning function
The proportional gain (KP), integral time (TI) and differential time (TD) can be set automatically for both
the limit cycle method and step response method.
4) Operation method of the PID instruction
Both PID speed type operation and measured value differential type operation are executed.

FX3U/FX3UC/FX3G Series PLC

Measured value (PV)

Target value
(SV)

Controlled
PID Instruction object

Output value (MV)

L-3
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 1 Outline
PID Instruction (FNC 88) 1.2 Basic Operation Expressions in PID Instruction (Reference)

1.2 Basic Operation Expressions in PID Instruction (Reference)

The PID instruction executes using the speed type or measured value differential type operation expression.
According to the contents of S3 +1, bit 0 (operation setting (ACT)) specified by S3 in the PID control,
either for forward operation or backward operation is executed.
Each value required in the operation is specified by a corresponding parameter S3 or later.

1. Basic operation expression for PID control

Operation
direction (ACT) PID operation expression
S3 +1, b0

TS
∆MV = KP{(EVn − EVn-1) + EVn + Dn}
TI
Forward operation EVn = PVnf-SV
(OFF) TD KD TD
Dn = (−2PVnf−1 + PVnf + PVnf−2) + Dn-1
TS + KD TD TS + KD TD
MVn = Σ∆MV

TS
∆MV = KP{(EVn − EVn−1) + EVn + Dn}
TI
Backward EVn = SV − PVnf
operation (ON) TD KD TD
Dn = (2PVnf−1 − PVnf − PVnf−2) + Dn-1
TS + KD TD TS + KD TD
MVn = Σ∆MV

1) Symbols
EVn : Deviation in sampling at this time Dn : Differential term at this time
EVn-1 : Deviation in previous cycle Dn-1 : Differential term in previous cycle
SV : Target value KP : Proportional gain
PVnf : Measured value in sampling at this time (after filter) TS : Sampling cycle
PVnf-1 : Measured value in previous cycle (after filter) TI : Integral constant
PVnf-2 : Measured value in two cycles before (after filter) TD : Differential constant
∆MV : Output variation KD : Differential gain
MVn : Operation quantity at this time
2) Expression for calculating the measured value (after the filter) in sampling at this time (PVnf)
The value "PVnf" is obtained from the following expression based on the read measured value.

Measured value after filter: PVnf = PVn+L(PVnf-1-PVn)

PVn : Measured value in sampling at this time

L : Filter coefficient
PVnf-1 : Measured value in previous cycle (after filter)

L-4
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 How to Use PID Instruction
PID Instruction (FNC 88) 2.1 Explanation of function and operation

FX3U-4AD-TC
2. How to Use PID Instruction

-ADP
1. Instruction format L

PID Instruction
16-bit Mnemonic Operation Condition 32-bit Mnemonic Operation Condition
FNC 88 lnstruction lnstruction
PID Continuous

(FNC 88)
9 steps PID ⎯
PID
Operation

2. Set data
Operand type Description Data type

S1 Data register storing the target value (SV) Binary 16-bit

S2 Data register storing the measured value (PV) Binary 16-bit

S3 Data register storing PID parameters Binary 16-bit

D Data register storing the output value (MV) Binary 16-bit

3. Target devices
Bit devices Word devices Others
Real Char-
Special Con- Poin-
Operand System User Digit Specification System User Index Num- acter
Unit stant
type ber String ter
Mod-
X Y M T C S D .b KnX KnY KnM KnS T C D R U \G V Z K H E " " P
ify

S1 S

S2 S

S3

D S

S : Only available for FX3U and FX3UC PLCs.

2.1 Explanation of function and operation

1. 16-bit PID operation

Once the target value S1 , measured value S2 and PID parameters S3 to S3 + 6 are set and the
program is executed, the operation result (MV) is transferred to the output value S
D3 at every sampling
time. The sampling time is specified by S3
Command
input
FNC 88 S1 S2 S3 D
PID
Target Measured PID Output
value value Parameters value
(SV) (PV) (MV)

L-5
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 2 How to Use PID Instruction
PID Instruction (FNC 88) 2.2 Relationship Between Parameter Setting and Auto-Tuning

Explanation of set items

Occupied
Set item Description
points
• The target value (SV) is set.
• The PID instruction does not change the settings.
Target value • Caution on using the auto-tuning (limit cycle method)
S1 1
(SV) If the target value for auto-tuning is different from the target value in the PID
control, it is necessary to set a value to which a bias value is added, and then
store the actual target value when the auto-tuning flag turns OFF.
Measured
S2 This is the input value of the PID operation. 1
value (PV)
1) Auto-tuning (in the limit cycle)
Twenty-nine devices are occupied from the head device specified in S3 . 29
2) Auto-tuning (in the step response method)
S3 Parameter*1 a) Operation setting (ACT): When bits 1, 2 and 15 are something other than "0"
Twenty-five devices are occupied from the head device specified in S3 . 25
b) Operation setting (ACT): When bits 1, 2 and 15 are "0"
Twenty devices are occupied from the head device specified in S3 . 20
1) PID control (normal processing)
The user sets the initial output value before driving the instruction.
After that, the operation result is stored.
2) Auto-tuning (in the limit cycle method)
Output value The Upper Limit Value (ULV) or Lower Limit Value (LLV) value is automatically
D 1
(MV) output during auto-tuning. The specified MV value is output when auto-tuning is
finished.
3) Auto-tuning (in the step response method)
The user sets the step output value before driving the instruction.
The MV value is not changed by PID instruction during auto-tuning.
*1. When auto-tuning is not executed for the limit cycle method, the same number of devices as those
occupied in the step response method become occupied.

2.2 Relationship Between Parameter Setting and Auto-Tuning

1. When auto-tuning is not executed (parameter setting)

It is necessary to write the set value of the parameters S3 to S3 +6 using MOV instruction in advance,
etc. before starting the PID operation when auto-tuning is not executed.
When data registers in the latch area are backed up against power failure, the setting data is held even after
the power of the PLC is turned OFF. Therefore, writing is not necessary when the power is turned back ON.

2. When auto-tuning is executed

The proportional gain ( S3 +3), integral time ( S3 +4) and differential time ( S3 +6) are important
constants for executing the auto-tuning function described later and for optimizing the PID control. These
constants can be set automatically.
→ For a detailed description of auto-tuning (limit cycle method), refer to Section. 4.1.
→ For a detailed description of auto-tuning (step response method), refer to Section. 4.2.

L-6
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Parameter
PID Instruction (FNC 88) 3.1 Parameter List: (S3) to (S3) + 28

FX3U-4AD-TC
3. Parameter

-ADP
This chapter describes various parameters of PID instruction. L

PID Instruction
3.1 Parameter List: (S3) to (S3) + 28

(FNC 88)
Set item Setting Remarks Reference
It cannot be shorter than operation Subsection
S3 Sampling time (TS) 1 to 32767 (ms)
cycle of the PLC. 3.2.1
0: Forward operation
bit0 Operation direction
1: Backward operation
0: Input variation alarm is invalid.
bit1
1: Input variation alarm is valid.
0: Output variation alarm is invalid. Do not set to ON bit 2 and bit 5 at
bit2
1: Output variation alarm is valid. same time.
bit3 Not available
Operation 0: Auto-tuning is not executed. Subsection
S3 +1 bit4
setting (ACT) 1: Auto-tuning is executed. 3.2.2
0: Upper and lower limits of output
value are not valid. Do not set to ON bit 2 and bit 5 at
bit5
1: Upper and lower limits of output same time.
value are valid.
0: Step response method
bit6 Select auto-tuning mode.
1: Limit cycle method
bit7 to bit15 Not available
When "0" is set, input filter is not Subsection
S3 +2 Input filter constant (α) 0 to 99 (%)
provided. 3.2.3
Subsection
S3 +3 Proportional gain (KP) 1 to 32767 (%)
3.2.4
When "0" is set, it is handled as "∞" Subsection
S3 +4 Integral time (TI) 0 to 32767 (× 100 ms)
(no integration). 3.2.5
When "0" is set, differential gain is Subsection
S3 +5 Differential gain (KD) 0 to 100 (%)
not provided. 3.2.6
When "0" is set, differential is not Subsection
S3 +6 Differential time (TD) 0 to 32767 (× 10 ms)
executed. 3.2.7
S3 +7
: These devices are occupied for internal processing of PID operation. Do not change data. ⎯
S3 +19

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Parameter
PID Instruction (FNC 88) 3.1 Parameter List: (S3) to (S3) + 28

Set item Setting Remarks Reference

Input variation (incremental) It is valid when operation direction
S3 +20*1 0 to 32767
alarm set value (ACT) (bit 1 of S3 +1) is "1".
Input variation (decremental) It is valid when operation direction
S3 +21*1 0 to 32767
alarm set value (ACT) (bit 1 of S3 +1) is "1".
It is valid when operation direction
Output variation
0 to 32767 (ACT) (bit 2 of S3 +1) is "1"
(incremental) alarm set value
or (ACT) (bit 5 of S3 +1) is "0".
S3 +22*1
It is valid when operation direction Subsection
Output upper limit set value −32768 to 32767 (ACT) (bit 2 of S3 +1) is "0" 3.2.2
or (ACT) (bit 5 of S3 +1) is "1"
It is valid when operation direction
Output variation
0 to 32767 (ACT) (bit 2 of S3 +1) is "1"
(decremental) alarm set value
or (ACT) (bit 5 of S3 +1) is "0"
S3 +23*1
It is valid when operation direction
Output lower limit set value −32768 to 32767 (ACT) (bit 2 of S3 +1) is "0"
or (ACT) (bit 5 of S3 +1) is "1"
0: Input variation (incremental) is not It is valid when operation direction
exceeded.
bit0 (ACT) (bit 1 or bit 2 of S3 +1) is
1: Input variation (incremental) is
exceeded. "1".

0: Input variation (decremental) is

not exceeded.
bit1
1: Input variation (decremental) is
exceeded. Subsection
S3 +24*1 Alarm output
0: Output variation (incremental) is 3.2.8
not exceeded.
bit2
1: Output variation (incremental) is
exceeded.
0: Output variation (decremental) is
not exceeded.
bit3
1: Output variation (decremental) is
exceeded.
The setting below is required when the limit cycle method is used (when the operation direction (ACT) b6 is set to ON).
PV value threshold Set it according to measured value
S3 +25
(hysteresis) width (SHPV) (PV) fluctuation.
Output value upper limit Set maximum value (ULV) of output
S3 +26
(ULV) value (MV). They are occupied when operation
Output value lower limit Set minimum value (LLV) of output direction (ACT) (bit 6) is "ON (limit Chapter 4
S3 +27 cycle method)."
(LLV) value (MV).
Wait setting from end of tuning
S3 +28 cycle to start of PID control −50 to 32717%
(KW)

*1. S3 +20 to +24 become occupied only if bits 1, 2, or 5 are set to "1" to determine the action (ACT) of
S3 +1.

L-8
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Parameter
PID Instruction (FNC 88) 3.2 Details of Parameters

3.2 Details of Parameters

K

FX3U-4AD-TC
3.2.1 Sampling time (TS): (S3)

-ADP
Setting range: 1 to 32767 [ms]
Set the cycle time (ms) for the PID operation.
L

PID Instruction
• In the PID control
Set the sampling time longer than the operation cycle of the PLC.

(FNC 88)
• In the auto-tuning
Set the sampling time to 1,000 ms (= 1 second) or more.

1. Maximum error
The maximum error of the sampling time (TS) is from "-(one operation cycle + 1 ms)" to "+(one operation
cycle)."
1) When the sampling time (TS) is a small value
Fluctuation of the maximum error described above may cause a problem.
In such a case, execute the PID instruction in the constant scan mode, or program it in a timer interrupt
routine.
2) When the sampling time (TS) is shorter than one operation cycle of the PLC
A PID operation error (K6740) occurs, however when PID operation is executed, the sampling time (TS) is
equal to the operation cycle of the PLC.
In such a case, use the PID instruction in a timer interrupt (I6 to I8 ), and clear S3 +7 just before
executing the PID instruction.
→ For a detailed description, refer to FX3U/FX3UC/FX3G Series Programming Manual - Basic & Applied
Instruction Edition

S3 +7 is reset.
X000 (When the interrupt routine is executed for the
FNC 12 K 0 D107
I610 first time,the register for internal processing is
MOVP
cleared by the pulse generation command.)

FNC 88 D 0 D 1 D100 D150 The PID operation is

PID executed.

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Parameter
PID Instruction (FNC 88) 3.2 Details of Parameters

3.2.2 Operation setting (ACT):(S3)+1

Setting range: OFF = forward operation, ON = backward operation

1. Forward operation or backward operation: S3 +1, bit 0

Select the PID control direction (forward or backward).
• During auto-tuning for the limit cycle method
It is necessary to set the PID control direction (forward or backward) for auto-tuning.
• During auto-tuning for the step response method
The PID control direction (forward or backward) is not required as, the direction is automatically set when
auto-tuning is complete.

Forward operation: S3 +1, bit 0 = 0

As the measured value (PV) becomes larger than the target value (SV), the output (MV) increases.
For example, cooling is a forward operation.
<Cooling>
Temperature

Measured value (PV)

Target value (SV)

Time

Backward operation: S3 +1, bit 0 = 1

As the measured value (PV) becomes smaller than the target value (SV), the output (MV) increases.
For example, heating is a backward operation.
<Heating>

Target value (SV)

Temperature

Measured value (PV)

Time

Relationship between the forward/backward operation and the output (MV), measured value (PV) and
target value (SV)
The relationship is as follows.
Target value (SV)
Output (MV)

Backward Forward
operation operation

Measured value (PV)

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Parameter
PID Instruction (FNC 88) 3.2 Details of Parameters

2. Alarm setting (for input variation and output variation): S3 +1, bit 1 and bit 2
K

FX3U-4AD-TC
Setting range: OFF, ON
The input variation and output variation can be checked arbitrarily.
These parameters can be set in S3 +24.

-ADP
→ For the operation of upper/lower limit alarm output for the input and output values,
refer to Subsection 3.2.8.
L

PID Instruction
Input variation: S3 +1, bit 1
When using the input variation alarm, it is necessary to set to ON the following bits and set the values to be

(FNC 88)
checked.
Set item Setting (setting range)
Operation setting ON: Used
S3 +1 bit1 Input variation alarm
(ACT) OFF: Not used

Input variation S3 +20 Input variation (incremental) alarm set value 0 to 32767
alarm set value Input variation (decremental) alarm set value 0 to 32767
S3 +21

Output variation: S3 +1, bit 2

When using the output variation alarm, it is necessary to set the following bits to ON and set the values to be
checked.
Set item Setting (setting range)
ON: Used
Operation setting bit2 Output variation alarm
S3 +1 OFF: Not used
(ACT)
bit5 Output value upper/lower limit setting Make sure to set it to OFF

Output variation S3 +22 Output variation (incremental) alarm set value 0 to 32767
alarm set value Output variation (decremental) alarm set value 0 to 32767
S3 +23

Variation means (Previous value) - (Current value)

3. Upper and lower limits for output value: S3 +1, bit 5

Setting range: OFF = Setting is not provided., ON = Setting is provided.
The upper limit and lower limit of the output value work as shown in the graph below.
The upper limit and lower limit of the output value can moderate the increase of the integral item in the PID
control.
When using the upper limit and lower limit of the output value, make sure to set S3 +1, bit 2 is set to OFF.
Set item Setting (setting range)
bit2 Output variation alarm Make sure to set it to OFF
Operation setting
S3 +1(ACT) ON: Used
(ACT) bit5 Output value upper/lower limit setting
OFF: Not used

Output value
When the upper limit and lower These values
limit of output value are not set are not output.

S3 +22
Output value
upper limit

S3 +23
Output value
lower limit These values
are not output.
When the upper limit and lower
limit of output value are set
Time

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Parameter
PID Instruction (FNC 88) 3.2 Details of Parameters

3.2.3 Input filter (α): (S3)+2

Setting range: 0 to 99[%]

PID control: Proportional operation, integral operation and differential operation
The input filter (α) is a software filter to reduce the fluctuation of the measured value (PV) caused by noise.
By setting this time constant of the filter according to the control target characteristics and noise level, the
effect of noise can be reduced.
• If the input filter value is too small, the filter effect is small.
• If the input filter value is too large, the input response is bad.

Because the input filter (α) is effective to the target value (SV), all of the proportional operation, integral
operation and differential operation are affected.

Pulse input by noise

Actual
measured
value (PV)

Input amplitude
Measured Input amplitude
value (PV) processed by input filter
processed by
input filter

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Parameter
PID Instruction (FNC 88) 3.2 Details of Parameters

3.2.4 Proportional gain (KP): (S3)+3

K

FX3U-4AD-TC
Setting range: 1 to 32767[%]
PID control: Proportional operation

-ADP
During the proportional operation, the output (MV) increases in proportion to the deviation (difference
between the target value (SV) and the measured value (PV)).
This deviation is called proportional gain (Kp), and expressed in the following relational expression: L

PID Instruction
Output (MV) = Proportional gain (KP) x Deviation (EV)

(FNC 88)
The reciprocal of the proportional gain (KP) is called proportional band.
As the proportional gain (KP) is larger (as shown in the example below), the motion to let the measured value
(PV) be nearer to the target value (SV) becomes stronger.

Example 1: Proportional operation (P operation) in heating (backward operation)

Target value (SV)
Temperature

Measured value (PV)

KP3 Remaining deviation
Proportional gain
KP2 KP3 > KP2 > KP1
KP1

Time
Output (MV)

Proportional gain
KP3 > KP2 > KP1
KP3 KP2 KP1

Time

Example 2: Proportional operation (P operation) in cooling (forward operation)

Temperature

Proportional gain
KP3 > KP2 > KP1
KP3 KP2 KP1
Measured value (PV)

Target value (SV)

Remaining deviation
Time
Output (MV)

Proportional gain
KP3 > KP2 > KP1
KP3 KP2 KP1

Time

3.2.5 Integral time (TI): (S3)+4

Setting range: 0 to 32767 [ × 100 ms] "0" is handled as "∞" (no integration).
PID operation: Integral operation
During the integral operation, the time after deviation is generated until the integral operation output becomes
the proportional operation output. This is called integral time and is expressed as "TI".
As TI becomes smaller, the integral operation becomes stronger.

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Parameter
PID Instruction (FNC 88) 3.2 Details of Parameters

Example 1: PI operation in heating (backward operation)

TI3
Measured value in PI operation
Temperature

Target Measured value in proportional operation

TI2 TI1
value (SV) Integral time (TI)
0 < TI3 < TI2 < TI1

Time

Integral time (TI)

Output (MV)

TI3 0 < TI3 < TI2 < TI1

Output in PI operation
TI2 TI1
Output in proportional operation

Time

Example 2: Proportional operation (P operation) in cooling (forward operation)

Integral time (TI)
0 < TI3 < TI2 < TI1
Temperature

TI3 TI2
Target TI1
Measured value in proportional operation
value(SV)
Measured value in PI operation

Time

Integral time (TI)

Output (MV)

0 < TI3 < TI2 < TI1

TI3
Output in PI operation
TI2 TI1
Output in proportional operation

Time

Important point
The integral operation changes the output so that the continuously generated deviation is eliminated.
As a result, the remaining deviation generated in the proportional operation can be eliminated.
Deviation

Deviation(EV)

Time

Output of
"proportional operation + integral operation"

Output of integral operation

Output

Output of proportional operation

Proportional gain (KP) × Deviation (E)

Time

Integral time (TI)

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Parameter
PID Instruction (FNC 88) 3.2 Details of Parameters

3.2.6 Differential gain (KD): (S3)+5

K

FX3U-4AD-TC
Setting range: 0 to 100[%]
PID control: Differential operation

-ADP
The filter is applied to the output at the differential operation.
Only the differential operation is affected by the differential gain (KD).
• When the differential gain (KD) is small, the output is immediately given with regard to changes in the
L

PID Instruction
measured value (PV) caused by disturbance, etc.
• When the differential gain (KD) is large, the output is given after a long time with respect to changes in the

(FNC 88)
measured value (PV) caused by disturbance, etc.

Important points
Set the differential gain (KD) to "0", and then adjust the operation using the input filter (α).
If the output response is too close to the disturbance, increase the differential gain (KD).

3.2.7 Differential time (TD): (S3)+6

Setting range: 0 to 32767 [× 10 ms]

PID control: Differential operation
Use the differential time (TD) to respond sensitively to fluctuations in the measured value (PV) caused by
disturbance, etc. and to minimize the fluctuations.
• When the differential time (TD) is large, it becomes to prevent large fluctuation in the control target caused
by disturbance, etc.
• It is not always necessary to use the differential time (when disturbance is small, for example).

TD3 (PID operation)

Deviation

Disturbance
TD1 (PID operation) Deviation (EV)
TD2 (PID operation)
Time
Output (MV)

TD3 (PID operation)

TD3 > TD2 > TD1

TD2 (PID operation)
TD1 (PID operation)

Time

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Parameter
PID Instruction (FNC 88) 3.2 Details of Parameters

Example 1: PID operation in heating (backward operation)

Changes caused by disturbance
TD3 (PID operation)
Target value (SV)
Temperature

PI operation (without differential operation)

TD2 (PID operation)
TD1 (PID operation)

TD3 > TD2 > TD1

Time
Output (MV)

Changes in output caused by disturbance

TD3 (PID operation)

TD3 > TD2 > TD1
TD1 (PID operation)

TD2 (PID operation)

PI operation (without differential operation)

Time

Example 2: PID operation in cooling (forward operation)

TD3 > TD2 > TD1

Temperature

PI operation (without differential operation)

Changes caused by disturbance

TD1 (PID operation)
TD2 (PID operation)

Target value (SV)

TD3 (PID operation)

Time

TD3 > TD2 > TD1

Output (MV)

Changes in output caused by disturbance

TD2 (PI operation)

TD1 (PID operation)

PI operation (without differential operation)

TD3 (PID operation)

Time

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 3 Parameter
PID Instruction (FNC 88) 3.2 Details of Parameters

3.2.8 Alarm output flag: (S3)+24

K

FX3U-4AD-TC
When the input variation [ S3 +1, bit 1] is set to 1

-ADP
Variation

L
Measured value (PV)

PID Instruction
(FNC 88)
Time
Sampling time (TS)
Alarm flag
ON
S3 +24
bit0
ON
S3 +24
bit1

When the output variation [ S3 +1, bit 2] is set to 1

Variation
Output (MV)

Variation

Time
Sampling time (TS)
Alarm flag
ON
S3 +24
bit2
ON
S3 +24
bit3

- When the preset input/output variation is exceeded:

Each bit of S3 +24 (alarm flags) turns ON immediately after PID instruction execution.

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Auto-Tuning
PID Instruction (FNC 88) 4.1 Limit Cycle Method

4. Auto-Tuning
This chapter describes the auto-tuning function of PID instruction.
The auto-tuning function will automatically set the important constants, such as the proportional gain and the
integral time, to ensure optimum PID control.
There are two auto-tuning methods: limit cycle method and step response method.

4.1 Limit Cycle Method

4.1.1 Parameters set in auto-tuning (of limit cycle method)

Parameter Setting position

Proportional gain (KP) S3 +3

Integral time (TI) S3 +4

Differential time (TD) S3 +6

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Auto-Tuning
PID Instruction (FNC 88) 4.1 Limit Cycle Method

4.1.2 Auto-tuning procedure

K

FX3U-4AD-TC
1 Set the forward or backward operation

-ADP
Set the operation direction flag (bit 0) in the operation setting parameter (ACT) S3 +1.
L
2 Select the auto-tuning method (limit cycle method)

PID Instruction
Set the auto-tuning method to ON (bit 6) in the operation setting parameter (ACT) +1.

(FNC 88)
S3
(When bit 6 is set to OFF, the step response method is selected.)

3 Set the auto-tuning execution flag to ON

Set the auto-tuning execution flag to ON (bit 4) in the operation setting parameter (ACT) S3 +1.

4 Set the input filter

Set the input filter in the operation setting parameter (ACT) S3 +2.

5 Set the sampling time

Set the sampling time S3 .

6 Set the Upper Limit Value (ULV)

Set the Upper Limit Value (ULV) of the output value (MV) in the operation setting parameter (ACT)
S3 +26.

7 Set the Lower Limit Value (LLV)

Set the Lower Limit Value (LLV) of the output value (MV) in the operation setting parameter (ACT)
S3 +27.

8 Set the threshold (hysteresis) (SHPV)

Set the threshold (hysteresis) width (SHPV) in the operation setting parameter (ACT) S3 +25.

9 Set the target value (SV)

Set the target value (SV) to S1 in PID instruction.

10 Set the ON PID instruction command input to start auto-tuning

Auto-tuning is executed according to the measured value (PV).
↓
When auto-tuning is completed, the auto-tuning flag (bit 4 and bit 6) turns OFF in the operation set-
ting parameter (ACT) S3 +1.

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Auto-Tuning
PID Instruction (FNC 88) 4.1 Limit Cycle Method

4.1.3 Reference: How to obtain three constants in PID control (limit cycle method)
For acquiring satisfactory control results in PID control, it is necessary to obtain the optimal value of each
constant (parameter) suitable to the control target.
This paragraph explains the limit cycle method to obtain the amplitude (a) and vibration cycle (τ, τon) of the
input value, and then calculate the proportional gain (KP), integral time (TI) and differential time (TD) based on
the expressions shown in the table below.

What is the limit cycle method

Changes in the input value in two-position control (in which the output Upper Limit Value (ULV) and output
Lower Limit Value (LLV) are switched according to the deviation) are measured, and then three constants in
the PID control are obtained.

Operation characteristics (in an example of backward operation)

During the "τw" period after the tuning cycle is finished, the output value is held at the output Lower Limit
Value (LLV), and then normal PID control is started.
The value "τw" can be obtained by the expression "τw = (50 + Kw)/100 × (τ-τon)", and the wait setting
parameter "Kw" can be set in the parameter S3 +28.
(Setting range: Kw = −50 to +32717[%])
(When the abnormal range is specified, "τw" is handled as "0")

Output value

ULV
(Output upper
limit value)

LLV τon
50 × τ on 1 -
(Output lower τ
limit value)
Time

Input value

SV+SHPV
SV(target value) a
SV-SHPV

τ
τ on τw
τ0 τ1 τ2 Time(s)

SHPV: PV input threshold (hysteresis)

Operation characteristics and three constants

Control type Proportional gain (KP) [%] Integral time (TI) [×100ms] Differential time (TD) [×10ms]
Only proportional 1
(ULV - LLV ) ⎯ ⎯
control (P operation) a
PI control 0.9 ( τ on
ULV - LLV) 33 × τ on 1 - ⎯
(PI operation) a τ
PID control 1.2 ( τon τon
ULV - LLV) 20 × τ on 1 - 50 × τ on 1 -
(PID operation) a τ τ

L-20
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Auto-Tuning
PID Instruction (FNC 88) 4.2 Step Response Method

4.2 Step Response Method

K

FX3U-4AD-TC
4.2.1 Parameters to be set by auto-tuning (step response method)

-ADP
Parameter
Operation setting (ACT)
Setting position Parameter
Integral time (TI)
Setting position
L
S3 +1, bit 0 (operation direction) S3 +4

PID Instruction
Proportional gain (KP) S3 +3 Differential time (TD) S3 +6

(FNC 88)
4.2.2 Auto-tuning procedure

1 Transferring the output value for auto-tuning to the output value D

Set the output value for auto-tuning to the maximum available output value multiplied by 0.5 to 1 for
the output equipment.

2 Setting the parameter S3 , target value (SV), etc. that cannot be set in auto-
tuning according to the system
Note that auto-tuning may not be executed normally if the cautions described below are not fol-
lowed

1. Set items
Set item and parameter Remarks
The difference from the measured value (PV) should be 150 or more.
Target value (SV) S1
(For the details, refer to "2. Cautions on setting" below.)
Sampling time (TS) S3 1,000 ms or more (For the details, refer to "2. Cautions on setting" below.)
Input filter (α) S3 +2
Differential gain (KD) S3 +5 When setting the input filter, set the differential gain to "0" usually.
Others Set other items, as necessary.

2. Cautions on setting
1) Difference between the target value (SV) and the measured value (PV)
If the difference between the target value (SV) and the measured value (PV) is less than 150 when auto-
tuning is started, auto-tuning is not executed normally.
Accordingly, if the difference is less than 150, set the target value for auto-tuning.
Set the target value again when auto-tuning is completed.
Set item Setting in PID instruction
Make sure that the difference from the measured value is 150 or
Target value (SV) S1
more when auto-tuning is started.

2) Sampling time (TS) S3

Make sure the sampling time is set for auto-tuning to 1 second (1000 ms) or more.
It is recommended that the sampling time is set to that it is considerably longer than the output change
cycle.

3 Setting to ON bit 4 of S3 +1 (operation setting ACT) to start auto-tuning

When the variation from the measured value at the start of auto-tuning to the target value reaches
1/3 or more, auto-tuning is completed. And bit 4 of S3 +1 (operation setting ACT) is
automatically set to OFF.

1. Important point
Start auto-tuning while the system is stable.
If the system is unstable when auto-tuning is started, auto-tuning may not be executed normally.

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 4 Auto-Tuning
PID Instruction (FNC 88) 4.3 Cautions on Auto-Tuning Execution

4.2.3 Reference: How to obtain three constants in PID control (step response method)
For acquiring satisfactory control results during PID control, it is necessary to obtain the optimal value of each
constant (parameter) suitable for the control target.
This paragraph explains the step response method to obtain three constants in the PID control (proportional
gain (KP), integral time (TI) and differential time (TD)).

What is the step response method

In this method, by giving stepped output from 0 to 100%*1 to the control system, three constants in the PID
control are obtained from the operation characteristics (maximum ramp (R) and dead time (L)) and the input
value variation.
*1. The stepped output may be obtained from 0 to 75% or from 0 to 50%.

Operation characteristics

100%
Output value Output value (MV)
0%
Time

Input value
variation Maximum ramp (R)

Time (s)
Dead time (L) 1 (s)
[s]

Operation characteristics and three constants

Control type Proportional gain (KP) [%] Integral time (TI) [×100ms] Differential time (TD) [×10ms]
Only proportional 1 × Output value ⎯ ⎯
control (P operation) RL (MV)

PI control 0.9 × Output value 33 L ⎯

(PI operation) RL (MV)

PID control 1.2 × Output value 20 L 50 L

(PID operation) RL (MV)

4.3 Cautions on Auto-Tuning Execution

1. Countermeasures with in the program when the input value (PV) does not change
When the input value (PV) does not change normally due to factors such as wire breakage in an analog input
line, auto-tuning is not finished.
Detect and avoid such occurrences by introducing a sequence to monitor the input value or the elapsed time
from the start of auto-tuning.

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Example of Practical Programs (for Step Response Method)
PID Instruction (FNC 88) 5.1 Example: System and operation

FX3U-4AD-TC
5. Example of Practical Programs (for Step Response Method)

-ADP
The following is an example of a program for the operation application system shown below. L

PID Instruction
5.1 Example: System and operation

(FNC 88)
System configuration
Temperature sensor Shielded compensating
(Thermocouple) conductor

X10 X11
ch2
FX3U-32MR/ FX2N-16EYT-
FX2N-4AD-
ES ESS/UL*1
TC
COM Y20 Y21
Temperature
Error indication
chamber

Electric heater X010: Auto-tuning command

*1: Since turning on/off is frequently carried out, be sure to use the X011: PID control command
transistor outputs.

Setting contents
During auto- During PID
Item
tuning control
Target value S1 500 (+50°C) 500 (+50°C)

Sampling time (TS) S3 3000 ms 500 ms

Input filter (α) S3 +2 70% 70%

Differential gain (KD) S3 +5 0% 0%

Parameters

2000
Output value upper limit S3 +22 2000
(2 seconds)
Output value lower limit S3 +23 0 0

Input variation alarm bit 1 of S3 +1 Not provided Not provided

Operation direction
Output variation alarm bit 2 of S3 +1 Not provided Not provided
(ACT)
Output value upper/lower limit setting bit 5 of S3 +1 Provided Provided
According to
Output value D 1800
operation

1. Operation of the electric heater

1) During PID control
D502 × 1 ms <ON duration>

OFF ON ON ON ON ON

2 sec (2000 ms) 2 sec (2000 ms) 2 sec (2000 ms)

<cycle>

2) During auto-tuning: When the output is 90% of the maximum output

1.8 sec (1800 ms) 1.8 sec (1800 ms) 1.8 sec (1800 ms)

2 sec (2000 ms) 2 sec (2000 ms) 2 sec (2000 ms)

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Example of Practical Programs (for Step Response Method)
PID Instruction (FNC 88) 5.2 Program example of auto-tuning (step response method) and PID control

5.2 Program example of auto-tuning (step response method) and PID control

Initial pulse
M8002
FNC 12 K500 D500 The target value is set (to 50°C).
MOV

FNC 12 K 70 D512 The input filter constant (α) is set

MOV (to 70%).

FNC 12 K0 D515 The differential gain (KD) is set

MOV (to 0%).

FNC 12 K2000 D532 The output value upper limit is set

MOV (to ON for 2 sec).

FNC 12 K0 D533 The output value lower limit is set

MOV (to ON for 0 sec).
PID control is started
after auto-tuning
X010
PLS M0 The auto-tuning setting is started.
PID control is started
(without auto-tuning) Auto-tuning setting flag
X011 M0
SET M1 Auto-tuning ON flag

FNC 12 The sampling time (Ts) for auto-

K3000 D510 tuning is set (to 3 sec).
MOV

FNC 12 Operation setting (ACT)

H0031 D511 Auto-tuning is started.
MOV

FNC 12 The output value for auto-tuning is

K1800 D502 set (to ON for 1.8 sec).
Auto-tuning ON flag MOV
M1 The sampling time (Ts) for normal
FNC 12 K500 D510
MOVP operation is set (to 500 ms).

Initial pulse
M8002 The mode of FX2N-4AD-TC is set.
FNC 79 K0 K0 H3303 K1 Ch 1: Unused Ch 3: Unused
TO Ch 2: K type Ch 4: Unused
RUN monitor
M8000
FNC 78 K0 K 10 D501 K1 Data is read from the channel 2 in
FROM FX2N-4AD-TC.
Initial pulse
M8002
RST D502 The PID operation is initialized.
PID control is
started after PID control is started
auto-tuning (without auto-tuning)
X010 X011

PID control is started

(without auto-tuning)
X11
FNC 88 D500 D501 D510 D502 PID instruction is driven.
PID control is PID
started after
auto-tuning
X10
M3 The PID operation is executed.

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Example of Practical Programs (for Step Response Method)
PID Instruction (FNC 88) 5.2 Program example of auto-tuning (step response method) and PID control

FX3U-4AD-TC
Auto-tuning ON flag
M1

-ADP
FNC 12 Auto-tuning operation is
D511 K2M10 confirmed.
MOV
Auto-tuning ON flag L
M14

PID Instruction
PLF M2 Auto-tuning is finished.

(FNC 88)
Auto-tuning is finished
M2
RST M1 The normal operation is started.

PID operation is executed.

M3
T246 Heater operation cycle
K2000
Heater operation cycle
T246
[ RST T246 ] Preset
PID operation
is executed.
M3

T246 < D502 PID operation is executed.

M3
FNC226 T246 D502 Y021 Heater output
LD <

Error flag
M8067
Y020 Error occurs.

END

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Example of Practical Programs (for Step Response Method)
PID Instruction (FNC 88) 5.3 Program example of auto-tuning (step response method)

5.3 Program example of auto-tuning (step response method)

Auto-tuning is started.
X010
FNC 12 K500 D500 The target value is set (to 50°C).
MOVP

FNC 12 The output value for auto-tuning is

K1800 D502 set (to ON for 1.8 sec).
MOV

FNC 12 The sampling time (Ts) is set

K3000 D510 (to 3 sec).
MOVP

FNC 12 H0031 D511 Operation setting (ACT)

MOVP Auto-tuning is started.

FNC 12 K 70 D512 The input filter constant (α) is set

MOVP (to 70%).

FNC 12 The differential gain (KD) is set

K0 D515 (to 0%).
MOVP

FNC 12 K2000 D532 The output value upper limit is set

MOVP (to ON for 2 sec).

FNC 12 K0 D533 The output value lower limit is set

MOVP (to ON for 0 sec).

PLS M0 Auto-tuning is started.

Auto-tuning is started.
M0
SET M1 PID instruction operation

Initial pulse
M8002 The mode of FX2N-4AD-TC is set.
FNC 79 K0 K0 H3303 K1 Ch 1: Unused Ch 3: Unused
TO Ch 2: K type Ch 4: Unused
RUN monitor
M8000
FNC 78 K0 K 10 D501 K1 Data is read from the channel 2
FROM in FX2N-4AD-TC.
Auto-tuning is started.
X010
RST D502 The PID output is initialized.
PID
operation
M1

PID
operation
M1
FNC 88 D500 D501 D510 D502 PID instruction
PID

FNC 12 Auto-tuning operation is

D511 K2M10 confirmed.
MOV
Auto-tuning ON flag
M14
PLF M2 Auto-tuning is finished.

Auto-tuning is finished.
M2
RST M1 Auto-tuning is completed.

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 5 Example of Practical Programs (for Step Response Method)
PID Instruction (FNC 88) 5.3 Program example of auto-tuning (step response method)

FX3U-4AD-TC
PID operation
M1

-ADP
Heater operation cycle timer
T246 (2 sec)
K2000
L
T246

PID Instruction
The heater operation cycle timer
RST T246 is preset.
PID

(FNC 88)
operation
M1

PID operation
M1
FNC226 T246 D502 Y021 Heater output
LD <

Error flag
M8067
Y020 Error occurs.

END

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FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 6 Troubleshooting
PID Instruction (FNC 88) 6.1 Error Codes

6. Troubleshooting

6.1 Error Codes

When an error occurs in the set value of a control parameter or the data acquired during the PID operation,
the operation error flag M8067 turns ON, and a corresponding error code is stored in D8067.

Error
Error description Action
code
6730 Incorrect sampling time (TS) (TS ≤ 0)
Incorrect input filter constant (α)
6732
(α < 0 or 100 ≤ α)
<PID operation is stopped.>
6733 Incorrect proportional gain (KP) (KP < 0) A data error has occurred in the set value in a control parameter
6734 Incorrect integral time (TI) (TI < 0) or in the middle of PID operation.
Check the parameters.
Incorrect derivative gain (KD)
6735
(KD < 0 or 201 ≤ KD)
6736 Incorrect derivative time (TD) (TD < 0)
<Auto-tuning is continued.>
6740 Sampling time (TS) ≤ Operation cycle The operation is continued in the condition "sampling time (TS)
= cyclic time (operation cycle)."
Variation of measured value exceeds limit.
6742
(UPV < −32768 or +32767 < UPV)
Deviation exceeds limit.
6743
(EV < −32768 or +32767 < EV)
Integral result exceeds limit.
6744 <PID operation is continued.>
(Out of range from −32768 to +32767)
The operation is continued with each parameter set to the
Derivative value exceeds limit due to derivative gain maximum or minimum value.
6745
(KD).
Derivative result exceeds limit.
6746
(Out of range from −32768 to +32767)
PID operation result exceeds limit.
6747
(Out of range from −32768 to +32767)
<Output upper limit value and output lower limit value are
PID output upper limit set value < PID output lower limit
6748 exchanged for each other. → PID operation is continued.>
set value
Check whether the target settings are correct.
Abnormal PID input variation alarm set value or output <Alarm output is not given. → PID operation is continued.>
6749
variation alarm set value (Set value < 0) Check whether the target settings are correct.
<Auto-tuning is finished. → PID operation is started.>
• The deviation at start of auto-tuning is 150 or less.
<Step response method> • The deviation at end of auto-tuning is 1/3 or more of the
6750
Improper auto-tuning result deviation at start of auto-tuning.
Confirm the measured value and target value, and then execute
auto-tuning again.
<Auto-tuning is forced to finish. → PID operation does not
started.>
The operation direction estimated from the measured value at
<Step response method> the start of auto-tuning was different from the actual operation
6751
Auto-tuning operation direction mismatch direction of the output during auto-tuning.
Correct the relationship among the target value, output value
for auto-tuning and measured value, and then execute auto-
tuning again.

L-28
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 6 Troubleshooting
PID Instruction (FNC 88) 6.1 Error Codes

Error
K
Error description Action

FX3U-4AD-TC
code
<Auto-tuning is finished. → PID operation is not started.>
Because the set value fluctuated during auto-tuning, auto-

-ADP
<Step response method> tuning was not executed correctly.
6752
Improper auto-tuning operation Set the sampling time to a value larger than the output change
cycle, or set a larger value to the input filter constant. L
After changing the setting, execute auto-tuning again.

PID Instruction
<Limit cycle method>
6753 Abnormal output set value for auto-tuning

(FNC 88)
[ULV (upper limit) ≤ LLV (lower limit)] <Auto-tuning is forcibly finished. → PID operation is not
started.>
<Limit cycle method> Check whether the target settings are correct.
6754 Abnormal PV threshold (hysteresis) set value for auto-
tuning (SHPV < 0)
<Limit cycle method> <Auto-tuning is forcibly finished. → PID operation is not
Abnormal auto-tuning transfer status started.>
6755
(Data of device controlling transfer status is abnormally Verify that devices occupied by PID instruction are not
overwritten.) overwritten in the program.
<Auto-tuning is forcibly finished. → PID operation is not
started.>
The auto-tuning time is too long.
<Limit cycle method>
Increase the difference (ULV - LLV) between the upper limit and
6756 Abnormal result due to excessive auto-tuning
the lower limit of the output value for auto-tuning, set a smaller
measurement time (τon > τ, τon < 0, τ < 0)
value to the input filter constant (α), or set a smaller value to the
PV threshold (SHPV) for auto-tuning, and then check whether
the result is improved.
<Auto-tuning is finished (KP = 32767). → PID operation is
started.>
<Limit cycle method>
The variation of the measured value (PV) is small compared
6757 Auto-tuning result exceeds proportional gain. (KP = Out
with the output value. Multiply the measured value (PV) by "10"
of range from 0 to 32767)
so that the variation of the measured value will increase during
auto-tuning.
<Limit cycle method> <Auto-tuning is finished (KP = 32767). → PID operation is
6758 Auto-tuning result exceeds integral time. started.>
(TI = Out of range from 0 to 32767) The auto-tuning time is too long.
Increase the difference (ULV - LLV) between the upper limit and
<Limit cycle method> the lower limit of the output value for auto-tuning, set a smaller
6759 Auto-tuning result exceeds derivative time. value to the input filter constant (α), or set a smaller value to the
(TD = Out of range from 0 to 32767) PV threshold (SHPV) for auto-tuning, and then check whether
the result is improved.

Caution
With regard to the measured value (PV) in PID, normal measurement data should be read before PID
operation begins.
Especially when the PID operation is executed to the input value in an analog input block, pay attention to the
conversion time.

L-29
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition 6 Troubleshooting
PID Instruction (FNC 88) 6.1 Error Codes

MEMO

L-30
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition Warranty

Warranty
Please confirm the following product warranty details before using this product.
1. Gratis Warranty Term and Gratis Warranty Range 2. Onerous repair term after discontinuation of
If any faults or defects (hereinafter "Failure") found to be production
the responsibility of Mitsubishi occurs during use of the 1) Mitsubishi shall accept onerous product repairs for
product within the gratis warranty term, the product shall be seven (7) years after production of the product is
repaired at no cost via the sales representative or discontinued.
Mitsubishi Service Company. However, if repairs are Discontinuation of production shall be notified with
required onsite at domestic or overseas location, expenses Mitsubishi Technical Bulletins, etc.
to send an engineer will be solely at the customer's
discretion. Mitsubishi shall not be held responsible for any 2) Product supply (including repair parts) is not available
re-commissioning, maintenance, or testing on-site that after production is discontinued.
involves replacement of the failed module. 3. Overseas service
Overseas, repairs shall be accepted by Mitsubishi's local
[Gratis Warranty Term]
overseas FA Center. Note that the repair conditions at
The gratis warranty term of the product shall be for one
each FA Center may differ.
year after the date of purchase or delivery to a designated
place. Note that after manufacture and shipment from 4. Exclusion of loss in opportunity and secondary
Mitsubishi, the maximum distribution period shall be six (6) loss from warranty liability
months, and the longest gratis warranty term after Regardless of the gratis warranty term, Mitsubishi shall not
manufacturing shall be eighteen (18) months. The gratis be liable for compensation of damages caused by any
warranty term of repair parts shall not exceed the gratis cause found not to be the responsibility of Mitsubishi, loss
warranty term before repairs. in opportunity, lost profits incurred to the user or third
person by Failures of Mitsubishi products, special
[Gratis Warranty Range]
damages and secondary damages whether foreseeable or
1) The range shall be limited to normal use within the not , compensation for accidents, and compensation for
usage state, usage methods and usage environment, damages to products other than Mitsubishi products,
etc., which follow the conditions and precautions, etc., replacement by the user, maintenance of on-site
given in the instruction manual, user's manual and equipment, start-up test run and other tasks.
caution labels on the product.
5. Changes in product specifications
2) Even within the gratis warranty term, repairs shall be
The specifications given in the catalogs, manuals or
charged for in the following cases.
technical documents are subject to change without prior
a) Failure occurring from inappropriate storage or
notice.
handling, carelessness or negligence by the user.
Failure caused by the user's hardware or software 6. Product application
design. 1) In using the Mitsubishi MELSEC programmable logic
b) Failure caused by unapproved modifications, etc., controller, the usage conditions shall be that the
to the product by the user. application will not lead to a major accident even if any
c) When the Mitsubishi product is assembled into a problem or fault should occur in the programmable
user's device, Failure that could have been logic controller device, and that backup and fail-safe
avoided if functions or structures, judged as functions are systematically provided outside of the
necessary in the legal safety measures the user's device for any problem or fault.
device is subject to or as necessary by industry
2) The Mitsubishi programmable logic controller has
standards, had been provided.
been designed and manufactured for applications in
d) Failure that could have been avoided if
general industries, etc. Thus, applications in which the
consumable parts (battery, backlight, fuse, etc.)
public could be affected such as in nuclear power
designated in the instruction manual had been
plants and other power plants operated by respective
correctly serviced or replaced.
power companies, and applications in which a special
e) Relay failure or output contact failure caused by
quality assurance system is required, such as for
usage beyond the specified Life of contact
Railway companies or Public service purposes shall
(cycles).
be excluded from the programmable logic controller
f) Failure caused by external irresistible forces such
applications.
as fires or abnormal voltages, and failure caused
In addition, applications in which human life or
by force majeure such as earthquakes, lightning,
property that could be greatly affected, such as in
wind and water damage.
aircraft, medical applications, incineration and fuel
g) Failure caused by reasons unpredictable by
devices, manned transportation, equipment for
sc ientific tec hnol ogy s tanda rds a t tim e of
recreation and amusement, and safety devices, shall
shipment from Mitsubishi.
also be excluded from the programmable logic
h) Any other failure found not to be the responsibility
controller range of applications.
of Mitsubishi or that admitted not to be so by the
However, in certain cases, some applications may be
user.
possible, providing the user consults their local
Mitsubishi representative outlining the special
requirements of the project, and providing that all
parties concerned agree to the special circumstances,
solely at the users discretion.

i
FX3G/FX3U/FX3UC PLC User's Manual - Analog Control Edition Revised History

Revised History
Date Revision Description
7/2005 A First Edition
2/2006 B • FX3U-4AD is added to B.
• FX3U-4DA is inserted to D.
• Adding and revising the other descriptions.
3/2006 C • B-8 page, 2.2 The Power Supply Specification for the FX3U-4AD, regarding the
A/D conversion circuit drive power:
Revised from [24V DC ±10%, 80mA] to [24VDC ±10%, 90mA]
3/2007 D • JIS (Japanese Industrial Standards) for temperature sensors are added
• Clerical Error Correction
12/2007 E • FX3UC (D, DSS) Series PLC added
• FX3U-4AD-PTW-ADP is inserted to G
• Clerical Error Correction
11/2008 F • FX3G Series PLC added
• FX3G-2AD-BD is added to D.
• FX3G-1DA-BD is added to G.
• FX3U-4AD-PNK-ADP is added to H.
• Adding and revising the other descriptions.

ii
USER'S MANUAL - Analog Control Edition

FX3G/FX3U/FX3UC SERIES PROGRAMMABLE CONTROLLERS

HEAD OFFICE: TOKYO BUILDING, 2-7-3 MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN
HIMEJI WORKS: 840, CHIYODA CHO, HIMEJI, JAPAN

MODEL FX3U-U-ANALOG-E
MODEL CODE 09R619

JY997D16701F Effective Nov. 2008

(MEE) Specifications are subject to change without notice.