Analog-Digital Converter

Module
User's Manual

Mitsubishi Programmable
Q64AD
Logic Controller Q68ADV
Q68ADI
SW0D5C-QADU-E
 • SAFETY PRECAUTIONS •
(Always read these instructions before using this equipment.)

Before using this product, please read this manual and the relevant manuals introduced in this manual
carefully and pay full attention to safety to handle the product correctly.
The instructions given in this manual are concerned with this product. For the safety instructions of the
programmable controller system, please read the CPU module user's manual.
In this manual, the safety instructions are ranked as "DANGER" and "CAUTION".

Indicates that incorrect handling may cause hazardous conditions,

! DANGER resulting in death or severe injury.

Indicates that incorrect handling may cause hazardous conditions,

! CAUTION resulting in medium or slight personal injury or physical damage.

Note that the ! CAUTION level may lead to a serious consequence according to the circumstances.
Always follow the instructions of both levels because they are important to personal safety.

Please store this manual in a safe place and make it accessible when required. Always forward it to the
end user.

[DESIGN PRECAUTION]
! DANGER
• Do not write data into the "system area" of the buffer memory of intelligent function modules.
Also, do not use any "prohibited to use" signals as an output signal to an intelligent function
module from the PLC CPU.
Writing data into the "system area" or outputting a signal for "prohibited to use" may cause a
PLC system malfunction.

! CAUTION
• Do not bunch the control wires or communication cables with the main circuit or power wires, or
install them close to each other.
They should be installed 100mm(3.9inch) or more from each other.
Not doing so could result in noise that may cause malfunction.

A-1
[INSTALLATION PRECAUTIONS]
! CAUTION
• Use in an environment that meets the general specifications contained in the user's manual of
the CPU module.
Using this PLC in an environment outside the range of the general specifications may cause
electric shock, fire, malfunction, and damage to or deterioration of the product.
• When installing the module, securely insert the module fixing tabs into the mounting holes of the
base unit while pressing the installation lever located at the bottom of the module downward.
Improper installation may result in malfunction, breakdown or the module coming loose and
dropping.
Securely fix the module with screws if it is subject to vibration during use.
• Tighten the screws within the range of specified torque.
If the screws are loose, it may cause the module to fallout, short circuits, or malfunction.
If the screws are tightened too much, it may cause damage to the screw and/or the module,
resulting in fallout, short circuits or malfunction.
• Switch all phases of the external power supply off when mounting or removing the module.
Not doing so may cause damage to the module.
• Do not directly touch the conductive area or electronic components of the module.
Doing so may cause malfunction or failure in the module.

[WIRING PRECAUTIONS]
! CAUTION
• Always ground the FG terminal for the PLC.
There is a risk of electric shock or malfunction.
• When turning on the power and operating the module after wiring is completed, always attach
the terminal cover that comes with the product.
There is a risk of electric shock if the terminal cover is not attached.
• Tighten the terminal screws within the range of specified torque.
If the terminal screws are loose, it may result in short circuits or malfunction.
If the terminal screws are tightened too much, it may cause damage to the screw and/or the
module, resulting in short circuits or malfunction.
• Be careful not to let foreign matter such as sawdust or wire chips get inside the module.
They may cause fires, failure or malfunction.
• The top surface of the module is covered with protective film to prevent foreign objects such as
cable offcuts from entering the module when wiring.
Do not remove this film until the wiring is complete.
Before operating the system, be sure to remove the film to provide adequate ventilation.

A-2
[STARTING AND MAINTENANCE PRECAUTIONS]
! CAUTION
• Do not disassemble or modify the modules.
Doing so could cause failure, malfunction injury or fire.
• Switch all phases of the external power supply off when mounting or removing the module.
Not doing so may cause failure or malfunction of the module.
• Do not touch the connector while the power is on.
Doing so may cause malfunction.
• Switch all phases of the external power supply off when cleaning or retightening the terminal
screws and module installation screws.
Not doing so may cause failure or malfunction of the module.
If the screws are loose, it may cause the module to fallout, short circuits, or malfunction.
If the screws are tightened too much, it may cause damages to the screws and/or the module,
resulting in the module falling out, short circuits or malfunction.

[DISPOSAL PRECAUTIONS]
! CAUTION
• When disposing of this product, treat it as industrial waste.

A-3
REVISIONS
The manual number is given on the bottom left of the back cover.
Print Date Manual Number Revision
Dec., 1999 SH (NA) 080055-A First printing

Japanese Manual Version SH-080028-B

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.
 1999 MITSUBISHI ELECTRIC CORPORATION

A-4
 INTRODUCTION

Thank you for purchasing the MELSEC-Q series PLC.

Before using the equipment, please read this manual carefully to develop full familiarity with the functions and
performance of the Q series PLC you have purchased, so as to ensure correct use.
Please forward a copy of this manual to the end user.

CONTENTS (This manual)

SAFETY PRECAUTIONS.................................................................................................................A- 1 to A- 3
REVISIONS ....................................................................................................................................................A- 4
CONTENTS.......................................................................................................................................A- 5 to A- 6
Conformation to the EMC Directive and Low Voltage Instruction ................................................................A- 7
About the Generic Terms and Abbreviations ................................................................................................A- 7
Product Structure ...........................................................................................................................................A- 8

1 OVERVIEW 1- 1 to 1- 2

1.1 Features .................................................................................................................................................. 1- 1

2 SYSTEM CONFIGURATION 2- 1 to 2- 2

2.1 Applicable Systems................................................................................................................................. 2- 1

3 SPECIFICATIONS 3- 1 to 3-18

3.1 Performance Specifications .................................................................................................................... 3- 1

3.1.1 Performance specifications list ......................................................................................................... 3- 1
3.1.2 I/O conversion characteristic............................................................................................................ 3- 2
3.1.3 Accuracy........................................................................................................................................... 3- 5
3.2 Function List ............................................................................................................................................ 3- 6
3.2.1 A/D conversion methods.................................................................................................................. 3- 6
3.2.2 Maximum and minimum values hold function ................................................................................. 3- 8
3.3 I/O Signals for the PLC CPU .................................................................................................................. 3- 8
3.3.1 List of I/O signals .............................................................................................................................. 3- 8
3.3.2 Details of I/O Signals........................................................................................................................ 3- 9
3.4 Buffer Memory......................................................................................................................................... 3-12
3.4.1 Buffer memory assignment.............................................................................................................. 3-12
3.4.2 A/D conversion enable/disable setting (buffer memory address 0: Un\G0)................................... 3-13
3.4.3 CH average time/average number of times
(buffer memory addresses 1 to 8: Un\G1 to Un\G8)....................................................................... 3-13
3.4.4 Averaging processing setting (buffer memory address 9: Un\G9) ................................................. 3-14
3.4.5 A/D conversion completed flag (buffer memory address 10: Un\G10) .......................................... 3-15
3.4.6 Digital output values (buffer memory addresses 11 to 18: Un\G11 to Un\G18) ............................ 3-15
3.4.7 Write data error codes (buffer memory address 19: Un\G19) ........................................................ 3-16
3.4.8 Setting ranges (buffer memory addresses 20 and 21: Un\G20 and Un\G21) ............................... 3-16

A-5
 3.4.9 Offset/gain setting mode (buffer memory addresses 22 and 23: Un\G22 and Un\G23) ............... 3-17
3.4.10 Maximum and minimum values storage area
(buffer memory addresses 30 to 45: Un\G30 to Un\G45) ............................................................ 3-17

4 SETUP AND PROCEDURES BEFORE OPERATION 4- 1 to 4-12

4.1 Handling Precautions.............................................................................................................................. 4- 1

4.2 Setup and Procedures before Operation ............................................................................................... 4- 2
4.3 Part Identification Nomenclature ............................................................................................................ 4- 3
4.4 Wiring....................................................................................................................................................... 4- 5
4.4.1 Wiring precautions............................................................................................................................ 4- 5
4.4.2 External wiring .................................................................................................................................. 4- 6
4.5 Switch Setting for Intelligent Function Module ....................................................................................... 4- 8
4.6 Offset/Gain Settings ................................................................................................................................ 4-10

5 UTILITY PACKAGE (SW0D5C-QADU-E) 5- 1 to 5-18

5.1 Utility Package Functions........................................................................................................................ 5- 1

5.2 Installing and Uninstalling the Utility Package........................................................................................ 5- 2
5.2.1 User precautions .............................................................................................................................. 5- 2
5.2.2 Operating environment..................................................................................................................... 5- 3
5.3 Explanation of Utility Package Operation............................................................................................... 5- 4
5.3.1 How to perform common utility package operations....................................................................... 5- 4
5.3.2 Operation overview .......................................................................................................................... 5- 7
5.3.3 Starting the intelligent function module utility .................................................................................. 5- 9
5.4 Initial Setting............................................................................................................................................ 5-11
5.5 Automatic Refresh Settings .................................................................................................................... 5-12
5.6 Monitor/Test ............................................................................................................................................ 5-14
5.6.1 Monitor/test screen........................................................................................................................... 5-14
5.6.2 Offset/gain setting operation ............................................................................................................ 5-17

6 PROGRAMMING 6- 1 to 6- 6

6.1 Programming Example Using the Utility Package ................................................................................. 6- 2

6.1.1 Operating the utility package ........................................................................................................... 6- 2
6.1.2 Programming example..................................................................................................................... 6- 3
6.2 Programming Example without Using the Utility Package .................................................................... 6- 4

7 TROUBLESHOOTING 7- 1 to 7- 4

7.1 Error Code List ........................................................................................................................................ 7- 1

7.2 Troubleshooting ...................................................................................................................................... 7- 2
7.2.1 When the "RUN" LED is flashing or turned off................................................................................ 7- 2
7.2.2 When the "ERROR" LED is on or flashing ...................................................................................... 7- 2
7.2.3 When the digital output values cannot be read............................................................................... 7- 3
7.2.4 Checking the A/D conversion module status using GPPW system monitor.................................. 7- 4

APPENDIX Appendix- 1 to Appendix- 2

Appendix 1. External Dimension Diagram ......................................................................................Appendix- 1

INDEX Index- 1 to Index- 2

A-6
Conformation to the EMC Directive and Low Voltage Instruction

For details on making Mitsubishi PLC conform to the EMC directive and low voltage
instruction when installing it in your product, please see Chapter 3, "EMC Directive and
Low Voltage Instruction" of the PLC CPU User's Manual (Hardware).
The CE logo is printed on the rating plate on the main body of the PLC that conforms
to the EMC directive and low voltage instruction.

About the Generic Terms and Abbreviations

Unless otherwise specified, this manual uses the following general terms and
abbreviations.

Abbreviation/general terms Description of the abbreviation/general terms

A/D conversion module General term for Q64AD, Q68ADI, Q68ADV
Personal computer IBM PC/AT or upwardly compatible computer with Windows 95 or higher installed.
Abbreviation of the GPP Function Software Package for Windows (Products after
GPPW
SW4D5C-GPPW-E)
QCPU (Q mode) General term for Q02CPU, Q02HCPU, Q06HCPU, Q12HCPU, Q25HCPU
General term for Microsoft Windows 95 (Japanese version), Windows 98 (Japanese
Windows
version) and Windows NT Workstation 4.0 (Japanese version)

Microsoft Windows, Microsoft Windows NT, Microsoft Visual Basic and Microsoft Excel are registered
trademarks of Microsoft Corporation in the United States.
Other company and product names herein are either trademarks or registered trademarks of their respective
owners.

A-7
Product Structure

The product structure of this product is given in the table below.

Manual Name Product name Quantity

Q64AD Q64AD Model Analog-Digital Conversion Module 1
Q68ADV Q68ADV Model Analog -Digital Conversion Module 1
Q68ADI Q68ADI Model Analog -Digital Conversion Module 1
Utility package for SW0D5C-QADU-E Model A/D Conversion Module 1
SW0D5C-QADU-E
SW0D5F-QADKEY-E Model License-key diskette 1

A-8
1 OVERVIEW
MELSEC-Q

1 OVERVIEW
1
This User's Manual describes the specifications, handling and programming methods
for the Q64AD analog-digital conversion module (hereinafter referred to as the
Q64AD), Q68ADV analog-digital conversion module (hereinafter referred to as the
Q68ADV), and Q68ADI analog-digital conversion module (hereinafter referred to as
the Q68ADI), which are used in conjunction with MELSEC-Q Series CPUs.
In this manual, the Q64AD, Q68ADV, and Q68ADI are collectively referred to as the
A/D conversion modules.

1.1 Features

(1) Select the type of module according to the application.

• Q64AD ........... 4 channels, where the voltage input or current input can be
selected for each channel.
• Q68ADV ........ 8 channels, all of which are voltage input.
• Q68ADI .......... 8 channels, all of which are current input.

(2) High speed conversion

Conversion is performed at a high speed of 80 µ s/channel. Also, the
temperature drift compensation function can be performed using a processing
time of "conversion time for all channels + 160 s".

(3) High degree of accuracy

The degree of accuracy for the conversion process is ± 0.1% (When the ambient
temperature is 25 ± 5 °C).

(4) Changing the input range

Input range 1 change can easily be set using GPPW function software package
(hereinafter referred to as GPPW).
1: Input range refers to the type of offset/gain settings. The most frequently
used range is set as the default but the user can also set the offset/gain.

(5) Easy settings using the utility package

A utility package is sold separately (SW0D5C-QADU-E).
The utility package is not a required item. However, it can be used to set initial
settings and automatic refresh settings on screen, reduce sequence programs,
and check settings and operating status.

1-1
1 OVERVIEW
MELSEC-Q

MEMO

1-2
2 SYSTEM CONFIGURATION
MELSEC-Q

2 SYSTEM CONFIGURATION

2.1 Applicable Systems

The A/D conversion modules can be used with the following systems.
2
(1) Applicable CPU modules
The module can be used with a CPU module that operates in Q mode.
Q02CPU, Q02HCPU, Q06HCPU, Q12HCPU and Q25HCPU

(2) Number of modules that can be used in one system

There is no limit in the number of modules that can be used, as long as the
number of I/O points is within the range allowed for the CPU used.

(3) Loading slot

The module can be loaded in any slot position in the standard base or expansion
base.
However, a power shortage may occur depending on the combination with other
installed modules and the number of modules used, so always take into
consideration the power supply capacity when installing modules.

(4) Software packages supported

The following are software packages supported by the A/D conversion modules.
Item name Model Remarks
Required
GPPW function software
SW4D5C-GPPW-E SW3D5C-GPPW-E or earlier
package
packages cannot be used.
Utility package for the A/D
SW0D5C-QADU-E Enables easy initial settings.
conversion module

2-1
2 SYSTEM CONFIGURATION
MELSEC-Q

MEMO

2-2
3 SPECIFICATIONS
MELSEC-Q

3 SPECIFICATIONS

3.1 Performance Specifications

3.1.1 Performance specifications list

Table 3.1 shows the performance specifications of the A/D conversion modules.

Table 3.1 Performance specifications

Model name
Q64AD Q68ADV Q68ADI
3
Item
Analog input points 4 points (4 channels) 8 points (8 channels) 8 points (8 channels)
Voltage –10 to 10 V DC (Input resistance value 1M ) ———
Analog
0 to 20 mA DC 0 to 20 mA DC
input Current ———
(input resistance value 250 ) (input resistance value 250 )
Digital output –4096 to 4095

Input Analog input range Maximum resolution Digital output value

0 to 10 V 2.5 mV
0 to 5 V 1.25 mV 0 to 4000
I/O characteristics, Voltage
1 to 5 V 1.0 mV
Maximum resolution
–10 to 10 V 2.5 mV –4000 to 4000
0 to 20 mA 5 A
Current 0 to 4000
4 to 20 mA 4 A

Ambient temperature
Accuracy ± 0.1 %
25 ± 5 °C
(Full scale
Ambient temperature With temperature drift compensation : ± 0.3 %
accuracy)
0 to 55 °C With no temperature drift compensation : ± 0.4 %
80 s/channel
Conversion speed (When there is temperature drift, the time calculated by adding 160 s will be used
regardless of the number of channels used)
Absolute maximum input Voltage : ± 15 V Current : ± 30 mA
Between the I/O terminal and PLC power supply : Photocoupler insulation
Insulation method
Between channels : Non-insulated
Number of occupied points 16 points
Connection terminals 18-point terminal block
2
Applicable wire size 0.3 to 0.75 mm
Applicable solderless terminal R1.25-3 (A solderless terminal with sleeve cannot be used)
Internal current consumption
0.63 A 0.64 A 0.64 A
(5 V DC)
Weight 0.18 kg 0.19 kg 0.19 kg

REMARK
See the user’s manual for the CPU module being used for general specifications of
the A/D conversion modules.

3-1
3 SPECIFICATIONS
MELSEC-Q

3.1.2 I/O conversion characteristic

The I/O conversion characteristic represents the angle formed by a straight line
connecting the "offset value" and "gain value" when the analog signals (voltage or
current input) from outside the PLC are converted to digital values.

Offset value
The offset value denotes the analog input value (voltage or current) that makes the
digital output value 0.

Gain value
The gain value denotes the analog input value (voltage or current) that makes the
digital output value 4000.

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3 SPECIFICATIONS
MELSEC-Q

(1) Voltage input characteristic

A voltage input characteristic graph is shown in Figure 3.1.

Analog input practical range

4095
4000

3) 4)

2000
2)
Digital output value

1)

0
1
–96

–2000

–4000
–4096
–15 –10 –5 0 5 10 15
Analog input voltage (V)

Analog input Maximum

Number Offset value Gain value Digital output value 2
range setting resolution
1) 1 to 5 V 1V 5V 1.0 mV
0 to 4000
2) 0 to 5 V 0V 5V 1.25 mV
3) –10 to 10 V 0V 10 V –4000 to 4000 2.5 mV
4) 0 to 10 V 0V 10 V 0 to 4000 2.5 mV
— User range setting 1 1 –4000 to 4000 —

Figure 3.1 Voltage input characteristic

POINT
(1) Do not input an analog input voltage of more than ± 15 V. The input elements
may be damaged.
(2) Set the offset/gain values for the user setting range 1 within a range in which
the following conditions are satisfied.
{ (Gain value) – (Offset value) } > 1.5 V
(3) When an analog value that exceeds the range for the digital output value 2 is
entered, the digital output value will be fixed at the maximum or minimum value.
• For 0 to 4000, the range for the digital output value is from –96 to 4095.
• For –4000 to 4000, the range for the digital output value is from –4096 to 4095.

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3 SPECIFICATIONS
MELSEC-Q

(2) Current input characteristic

A current input characteristic graph is shown in Figure 3.2.

Analog input practical range

4095
4000

1)

2000
2)
Digital output value

0
4
–96

–2000

–4000
–4096
–30 –20 –10 0 10 20 30
Analog input current (mA)

Analog input Maximum

Number Offset value Gain value Digital output value 2
range setting resolution
1) 4 to 20 mA 4 mA 20 mA 4 A
0 to 4000
2) 0 to 20 mA 0 mA 20 mA 5 A
— User range setting 1 1 –4000 to 4000 —

Figure 3.2 Current input characteristic

POINT
(1) Do not input an analog input current of more than ± 30 mA. A breakdown may
result due to overheating.
(2) Set the offset/gain values for the user setting range 1 within a range in which
the following conditions are satisfied.
{ (Gain value) – (Offset value) } > 5.5 mA
(3) When an analog value that exceeds the range of the digital output value 2 is
entered, the digital output value will be fixed at the maximum or minimum
value.
• For 0 to 4000, the range for the digital output value is from –96 to 4095.

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3 SPECIFICATIONS
MELSEC-Q

3.1.3 Accuracy

Accuracy is expressed as a full-scale value.

For example, the accuracy is ± 0.1% ( ± 4 for digital output value) when the module is
used in an ambient temperature of 25 ± 5 °C, and ± 0.3% (± 12 for digital output value)
in an ambient temperature of 0 to 55 °C with temperature drift compensation function.

4000

Range of fluctuation with

respect to the ambient
temperature
Digital output value

–4000

–10 V 0V 10 V

Analog input value

Figure 3.3 Accuracy

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3 SPECIFICATIONS
MELSEC-Q

3.2 Function List

Table 3.2 shows the function list of the A/D conversion modules.

Table 3.2 Function list

Item Function Reference section
(1) Specifies whether to enable or disable the A/D conversion for each channel.
A/D conversion enable/
(2) By disabling the conversion for the channels that are not used, the Section 3.4.2
disable setting
sampling time can be shortened.
(1) Sampling processing
The A/D conversion for analog input values is performed successively for
each channel, and the digital output value is output upon each conversion.
A/D conversion method Section 3.2.1
(2) Averaging processing
For each channel, A/D conversion values are averaged for the set number of
times or set amount of time, and the average value is output as a digital value.
Maximum and minimum (1) The maximum and minimum values of the digital output values is retained
Section 3.2.2
values hold function in the module.
(1) Errors arising from changes in the ambient temperature of the module are
Temperature drift automatically compensated for to improve conversion accuracy.
——
compensation function (2) The temperature drift compensation function can be performed at (A/D
conversion time for all channels) + 160 s.

3.2.1 A/D conversion methods

There are two A/D conversion methods, sampling processing and averaging processing.

(1) Sampling processing

A/D conversion is performed successively for the analog input value, and the
converted digital output values are stored in the buffer memory.
The sampling processing time depends on the number of channels used (the
number of channels set to A/D conversion enable) and whether the temperature
drift compensation function is available.

(a) Without the temperature drift compensation function

(Processing time) = (Number of channels used) 80 ( s/1 channel)

(b) With the temperature drift compensation function

(Processing time) = (Number of channels used) 80 ( s/1 channel) + 160 s
[Example]
When three channels (channels 1, 2 and 4) are A/D conversion enabled with the
temperature drift compensation function, the sampling processing time is 400 s.
3 80 + 160 = 400 ( s)

(2) Averaging processing

For channels for which averaging processing is specified, A/D conversion is
performed for the set number of times or the set amount of time. The average
value is calculated from the sum of values excluding the maximum and minimum
values, and then stored in the buffer memory.

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3 SPECIFICATIONS
MELSEC-Q

(a) When averaging processing is specified for the set amount of time

1) The number of processing repetitions within the set time differs

according to the number of channels used (number of channels for
which A/D conversion is enabled) and whether or not temperature-drift
compensation is used.
• Without the temperature drift compensation function
(Number of (Set time) 1000
=
processing repetitions) (Number of channels used) 80 ( s/1 channel)
• With the temperature drift compensation function
(Number of (Set time) 1000
=
processing repetitions) (Number of channels used) 80 ( s/1 channel) + 160
[Example]
When averaging processing is performed with four channels (channels 1, 2,
3, and 4) for the set time of 50 ms with the temperature drift compensation
function on, measurement is performed 104 times and the average value is
output.
50 1000
= 104.17 (times) …… Round down the number.
(4 80) + 160

2) When 7 or 8 channels are used with the temperature drift compensation

function on, set the average time to 3 ms or more.
If the time is set to 2 ms or less, the average number of times becomes
less than 3 and it causes the digital output value to become 0 since a
sum excluding the maximum and minimum values will be averaged.

(b) When the averaging processing is specified for the set number of times
The time required to store the average value calculated using the average
number of times in the buffer memory differs according to the number of
channels used (the number of channels set to A/D conversion enable) and
whether or not the temperature drift compensation is used.

1) Without the temperature drift compensation function

(Processing time) = (Set number of times)
{(Number of channels used) 80}/1000
(Unit: ms)
2) With the temperature drift compensation function
(Processing time) = (Set number of times)
[{(Number of channels used) 80} + 160]/1000
(Unit: ms)
[Example]
When averaging processing is performed with four channels (1, 2, 3 and 4)
for the set number of 100 times with temperature-drift compensation on, an
average value is output every 48 ms.
100 {(4 80) + 160} ÷ 1000 = 48 (ms)

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3 SPECIFICATIONS
MELSEC-Q

3.2.2 Maximum and minimum values hold function

(1) The maximum and minimum digital output values for each channel are stored in buffer
memory addresses 30 to 45 (Un\G30 to Un\G45).

(2) When the operating condition setting completed flag (X09) turns OFF, the values
are cleared to 0 and new maximum and minimum values are stored when
conversion begins.

(3) Since the area for storing the maximum and minimum values can be rewritten with
the sequence program, the maximum and minimum values within a specific period
of time can be checked.

3.3 I/O Signals for the PLC CPU

3.3.1 List of I/O signals

Table 3.3 shows a list of the I/O signals for the A/D conversion modules.

Table 3.3 List of I/O signal

Signal direction CPU A/D conversion module Signal direction CPU A/D conversion module
Device No. (Input) Signal name Device No. (Output) Signal name
X00 Module READY Y00
X01 Temperature drift compensation flag Y01
X02 Y02
X03 Y03
X04 Y04 Use prohibited 1
X05 Use prohibited 1 Y05
X06 Y06
X07 Y07
X08 Y08
X09 Operating condition setting completed flag Y09 Operating condition setting request
X0A Offset/gain setting mode flag Y0A User range write request
X0B Channel change completed flag Y0B Channel change request
X0C Y0C Use prohibited 1
Use prohibited 1 Maximum value/minimum value reset
X0D Y0D
request
X0E A/D conversion completed flag Y0E Use prohibited 1
X0F Error flag Y0F Error clear request

POINT
1 These signals cannot be used by the user since they are for system use only.
If these are turned ON/OFF by the sequence program, the functioning of the
A/D conversion module cannot be guaranteed.

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3 SPECIFICATIONS
MELSEC-Q

3.3.2 Details of I/O signals

I/O signals for the A/D conversion modules are explained in detail below.

(1) Input signals

Device No. Signal Name Description
(1) When the PLC CPU is powered on or reset, this signal turns on once the
preparation for A/D conversion has been completed, and A/D conversion
processing is then performed.
X0 Module READY (2) When the Module READY signal is off, A/D conversion processing is not performed.
Module READY (X0) turns off in the following situations:
• During offset/gain setting mode
• When the A/D conversion module has a watchdog timer error 1
(1) When A/D conversion processing is being performed with the temperature drift
Temperature drift
X1 compensation function on, the flag indicating temperature drift compensation status
compensation flag
(X1) turns ON.
(1) This is used as an interlock condition for turning the operating condition setting
request (Y9) ON/OFF when the setting for A/D conversion enable/disable (buffer
memory address 0: Un\G0) is changed.
(2) When the operating condition setting completed flag (X9) is OFF, A/D conversion
processing is not performed. Under the following conditions, the operating condition
setting completed flag (X9) turns OFF.
• When Module READY (X0) is OFF
• When operating condition setting request (Y9) is ON
Operating
X9 condition setting Module READY (X0)
completed flag

Operating condition
setting completed (X9)

Operating condition
change request (Y9)

A/D conversion
completed (XE)

(1) This is used as an interlock condition for setting the offset/gain request (YA) to
ON/OFF when registering the value after adjustment of the offset/gain settings have
been completed.
(2) See Section 4.6 regarding the offset/gain settings.
Offset/gain setting OFF
XA Module READY (X0)
mode flag

Offset/gain setting mode flag (XA)

User range write request (YA)

1 A watchdog timer error occurs when the program calculations are not completed
within the scheduled time due to malfunctions of A/D conversion module
hardware. When a watchdog timer error occurs, the RUN LED for the A/D
conversion module turns off.

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Device No. Signal name Description

(1) This is used as an interlock condition for setting the channel change request (YB) to
ON/OFF when changing the channel for which the offset/gain settings are to be
performed.
(2) See Section 4.6 regarding the offset/gain settings.
Offset/gain setting mode
Offset/gain specifications
Channel change (buffer memory addresses 22 and 23:
XB
completed flag Un\G22 and Un\G23)

Channel change completed

flag (XB)

Channel change request (YB)

A/D conversion (1) This turns ON when conversion for all of the channels that are conversion enabled
XE
completed flag has been completed.
(1) The error flag turns ON when a write error occurs.
(2) To clear the error code, set the error clear request (YF) to ON.

Error flag (XF)

XF Error flag

Error clear request (YF)

The error code is read during this interval.

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(2) Output signals

Device No. Signal name Description
(1) This turns ON when A/D conversion is enabled/disabled, or when averaging
Operating
processing specification, the settings for the average time or number of times (when
Y9 condition setting
averaging processing is specified) is enabled.
request
(2) See the X9 column for ON/OFF timing.
(1) This turns ON when the value for the adjusted offset/gain settings are registered in
User range write the A/D conversion module.
YA
request (2) See the XA column for ON/OFF timing.
See Section 4.6 for offset/gain settings.
(1) This turns ON when changing the channel for which offset/gain settings are to be
Channel change performed.
YB
request (2) See the XB column for ON/OFF timing.
See Section 4.6 for offset/gain settings.
Maximum value/ (1) The maximum and minimum values stored in buffer memory addresses 30 to 45
YD minimum value (Un\G30 to Un\G45) are cleared by setting the maximum and minimum value reset
reset request request (YD) to ON.
(1) This turns ON when a write error is cleared.
YF Error clear request
(2) See the XF column for ON/OFF timing.

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3.4 Buffer Memory

3.4.1 Buffer memory assignment

The following explanation is based on the Q68ADV and Q68ADI with eight channel
analog input (CH1 to CH8).

Table 3.4 Buffer memory assignment

Address R/W Address
Description Description R/W
Hexadecimal Decimal 2 Hexadecimal Decimal

0H 0 A/D conversion enable/disable setting R/W 18 H 24

1H 1 CH1 Average time/average number of times R/W 19 H 25

2H 2 CH2 Average time/average number of times R/W 1A H 26

System area —
3H 3 CH3 Average time/average number of times R/W 1B H 27

4H 4 CH4 Average time/average number of times R/W 1C H 28

5H 5 CH5 Average time/average number of times 1 R/W 1D H 29

6H 6 CH6 Average time/average number of times 1 R/W 1E H 30 CH1 Maximum value R/W

7H 7 CH7 Average time/average number of times 1 R/W 1F H 31 CH1 Minimum value R/W

8H 8 CH8 Average time/average number of times 1 R/W 20 H 32 CH2 Maximum value R/W

9H 9 Averaging process setting R/W 21 H 33 CH2 Minimum value R/W

AH 10 A/D conversion completed flag R 22 H 34 CH3 Maximum value R/W

BH 11 CH1 Digital output value R 23 H 35 CH3 Minimum value R/W

CH 12 CH2 Digital output value R 24 H 36 CH4 Maximum value R/W

DH 13 CH3 Digital output value R 25 H 37 CH4 Minimum value R/W

EH 14 CH4 Digital output value R 26 H 38 CH5 Maximum value 1 R/W

FH 15 CH5 Digital output value 1 R 27 H 39 CH5 Minimum value 1 R/W

10 H 16 CH6 Digital output value 1 R 28 H 40 CH6 Maximum value 1 R/W

11 H 17 CH7 Digital output value 1 R 29 H 41 CH6 Minimum value 1 R/W

12 H 18 CH8 Digital output value 1 R 2A H 42 CH7 Maximum value 1 R/W

13 H 19 Error code R/W 2B H 43 CH7 Minimum value 1 R/W

14 H 20 Setting range (CH1 to CH4) R 2C H 44 CH8 Maximum value 1 R/W

15 H 21 Setting range (CH5 to CH8) 1 R 2D H 45 CH8 Minimum value 1 R/W

Offset/gain setting mode
16 H 22 R/W
Offset specification
Offset/gain setting mode
17 H 23 R/W
Gain specification

1 When Q64AD is used, buffer memory addresses for CH5 to CH8 become blank.
2 Indicates whether reading and writing to/from a sequence program are enabled.
R : Read enabled
W : Write enabled

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3.4.2 A/D conversion enable/disable setting (buffer memory address 0: Un\G0)

(1) Sets whether the output of an A/D conversion value is enabled or disabled for
each channel.

(2) It is necessary to set the operating condition setting request (Y9) to ON/OFF in
order to enable the A/D conversion enable/disable setting. (See Section 3.2.2.)

(3) By default, A/D conversion is enabled for all channels.

(4) In the case of the Q64AD module, b4 to b7 (CH5 to CH8) become invalid.

b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0

0 0 0 0 0 0 0 0 CH8 CH7 CH6 CH5 CH4 CH3 CH2 CH1

For the Q64AD, information for b4 to b15 is fixed at 0,and 0 : A/D conversion enabled
for the Q68ADV (I), information for b8 to b15 is fixed at 0. 1 : A/D conversion disabled

Example
When the channels used for A/D conversion are 1, 3, 5 and 8, 006AH (106) is stored in buffer memory
address 0 (Un\G0).

b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0

0 0 0 0 0 0 0 0 0 1 1 0 1 0 1 0 006AH (106)

CH8 CH7 CH6 CH5 CH4 CH3 CH2 CH1

0 0 6 A

3.4.3 CH average time/average number of times (buffer memory addresses 1 to 8: Un\G1

to Un\G8)

(1) Sets the average time or average number of times for each channel for which
averaging processing was specified.

(2) The setting range is as shown below:

Averaging processing by the number of times: 4 to 62500
Averaging processing by time: 2 to 5000 ms

(3) Zero is set as the default.

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3.4.4 Averaging processing setting (buffer memory address 9: Un\G9)

(1) When selecting sampling processing or averaging processing, write the setting to
buffer memory address 9 (Un\G9).

(2) When averaging processing is selected, select average time or average number
of times.

(3) By default, sampling processing is set for all channels.

(4) In the case of the Q64AD module, b4 to b7 and b12 to b15 (CH5 to CH8) are
invalid.

b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0

CH8 CH7 CH6 CH5 CH4 CH3 CH2 CH1 CH8 CH7 CH6 CH5 CH4 CH3 CH2 CH1

Averaging processing channel specification Time/number of times specification

1 : Averaging processing 1 : Average time
0 : Sampling processing 0 : Average number of times

Example
To average channels 1 and 5 for the set number of times and channels 2 and 7 for the set amount of time,
and to sample-process other channels, store 5342H (21314) in buffer-memory address 9 (Un\G9).

b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0

0 1 0 1 0 0 1 1 0 1 0 0 0 0 1 0 5342H (21314)

CH8 CH7 CH6 CH5 CH4 CH3 CH2 CH1 CH8 CH7 CH6 CH5 CH4 CH3 CH2 CH1

5 3 4 2

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3.4.5 A/D conversion completed flag (buffer memory address 10: Un\G10)

(1) When A/D conversion for the channels enabled for conversion is complete, the
A/D conversion completed flag is set to 1. The A/D conversion completed flag
(XE) is set to ON when the conversion for all A/D conversion enabled channels is
complete.

(2) When the operating condition setting request (Y9) is set to ON, the flag returns to
the default setting of 0 and changes to 1 when A/D conversion is complete.

(3) In the case of the Q64AD module, b4 to b7 (CH5 to CH8) are invalid.

b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0

0 0 0 0 0 0 0 0 CH8 CH7 CH6 CH5 CH4 CH3 CH2 CH1

1 : A/D conversion completed

For the Q64AD, information for b4 to b15 is fixed at 0,
0 : A/D conversion in progress
and for the Q68AD, information for b8 to b15 is fixed at 0.
or not used

Example
When A/D conversion is enabled for channels 1, 2 and 6 and all conversions for these channels are
complete, 0023H (35) is stored in buffer-memory address 10 (Un\G10).

b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0

0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 1 0023H (35)
CH8 CH7 CH6 CH5 CH4 CH3 CH2 CH1

0 0 2 3

3.4.6 Digital output values (buffer memory addresses 11 to 18: Un\G11 to Un\G18)

(1) The digital output values after A/D conversion are stored in the buffer memory
addresses from 11 to 18 (Un\G11 to Un\G18) for each channel.

(2) The digital output values are expressed with 16-bit signed binary values.

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3.4.7 Write data error codes (buffer memory address 19: Un\G19)

(1) The error codes generated by the A/D conversion modules are stored here.

(2) See Section 7.1 for the details of the error codes.

3.4.8 Setting ranges (buffer memory addresses 20 and 21: Un\G20 and Un\G21)

(1) These areas are used to confirm the setting ranges of the A/D conversion module.

(2) The setting values for CH1 to CH4 are stored in buffer memory address 20
(Un\G20) and setting values for CH5 to CH8 are stored in buffer memory address
21 (Un\G21). In the case of the Q64AD module, buffer memory address 21
(Un\G21) is invalid.

b15 to b12 b11 to b8 b7 to b4 b3 to b0

Un\G20 CH4 CH3 CH2 CH1
Un\G21 CH8 CH7 CH6 CH5

The setting values are as follows.

Input range Setting value
4 to 20 (mA) 0H
0 to 20 (mA) 1H
1 to 5 (V) 2H
0 to 5 (V) 3H
–10 to 10 (V) 4H
0 to 10 (V) 5H
User range setting FH

(3) Default setting is 0.

When the setting for Q68ADV is 0, the analog input range operates between 0 to
10V.
(When the setting is 5H, the analog input range will be the same as above.)

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3.4.9 Offset/gain setting mode (buffer memory addresses 22 and 23: Un\G22 and Un\G23)

(1) Specifies the channel to be adjusted for the offset/gain settings.

(2) The channel for which the offset is to be adjusted is specified in buffer memory
address 22 (Un\G22) and the channel for which the gain is to be adjusted is
specified in buffer memory address 23 (Un\G23).

(3) Although it is possible to set multiple channels at the same time, set the offset and
gain separately (buffer memory addresses 22 and 23: Set either Un\G22 or
Un\G23 to 0). If both are set at the same time, an offset/gain setting mode error
(error code 500) occurs.

(4) For Q64AD, b4 to b7 (information for CH5 to CH8) are invalid.

(5) See Section 4.6 for the details of the offset/gain settings.

b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0

Un\G22 (Offset specification) 0 0 0 0 0 0 0 0 CH8 CH7 CH6 CH5 CH4 CH3 CH2 CH1

Un\G23 (Gain specification) 0 0 0 0 0 0 0 0 CH8 CH7 CH6 CH5 CH4 CH3 CH2 CH1

1 : Channel to be set
0 : Invalid

3.4.10 Maximum and minimum values storage area (buffer memory addresses 30 to 45:
Un\G30 to Un\G45)

(1) The maximum and minimum values of the converted digital value for each
channel are stored.

(2) The stored values for all channels will be cleared to 0 when the operating
condition setting request (Y9) is set to ON and the setting is changed or when the
maximum and minimum values reset request (YD) is set to ON.

(3) The maximum and minimum values are stored for each sample processing time
(measurement), even with channels for which averaging processing is specified.

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MEMO

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4 SETUP AND PROCEDURES BEFORE OPERATION

4.1 Handling Precautions

(1) Do not drop the module or subject it to heavy impact.

(2) Do not remove the PCB of the module from its case. Doing so may cause the
module to fail.

(3) Be careful not to let foreign particles such as swarf or wire chips enter the module.
They may cause a fire, mechanical failure or malfunction.

(4) The top surface of the module is covered with a protective film to prevent foreign
objects such as wire burrs from entering the module during wiring. Do not remove
this film until the wiring is complete. Before operating the system, be sure to 4
remove the film to provide adequate ventilation.

(5) Tighten the terminal screws using torque within the following ranges. Loose
screws may cause short circuits, mechanical failures or malfunctions.
Screw location Clamping torque range
Module mounting screws (M3 screws) 36 to 48 N · cm
Terminal block screws (M3 screws) 42 to 58 N · cm
Terminal block mounting screws (M3.5 screws) 66 to 89 N · cm

(6) To mount the module on the base, securely insert the module fastening latch into
the fastening hole on the base. Improper installation may result in a module
malfunction, or may cause the module to fall off.

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4.2 Setup and Procedures before Operation

Start

Module mounting
Mount the A/D conversion module in the specified
slot.

Wiring
Wire external devices to the A/D conversion module.

Intelligent function module switch settings

Perform settings using GPPW (see Section 4.5).

Use the setting range at the

time of factory shipment.
Use user range settings?

Use user range settings

Offset/gain setting
If user range settings are used, perform the
offset and gain settings (see Section 4.6).

NO
Use the utility package?

YES

Initial setting and automatic refresh setting

The program can be simplified if the utility
package is used for setting (see Chapter 5).

Programming and debugging

Create and check the sequence program.

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4.3 Part Identification Nomenclature

The name of each part of the A/D conversion module is listed below.

Q64AD Q68ADV Q68ADI

1) 1) 1)
Q64AD Q68ADV Q68ADI
RUN RUN RUN

ERROR ERROR ERROR

2) 2) 2)

V+ 1 V+ 1 I+
1
C C
C V- 2 H
1
V- 2 H
1
I- 2
H
1 I+ 3 V+ 3 I+ 3
C C
SLD 4 H
2
V- 4 H
2
I- 4
V+ 5 V+ 5 I+ 5
C C
C
H
V- 6 H
3
V- 6 H
3
I- 6
2 I+ V+
7 C
7 C
I+ 7
SLD H V- H I-
8 4 8 4 8
V+ V+ I+
9 C 9 C 9
C V- H V- H I-
H
3
10 5
V+
10 5
10
I+ I+

SLD
11 C
H V-
11 C
H I-
11
6 6
V+
12 12 I+
12
V+

C V-
13 C
H V-
13 C
H I-
13
H 7 7
4 I+ 14 V+
14 I+ 14
C C
SLD 15 H V- 15 H I- 15
8 8
A.G. 16 A.G. 16 A.G. 16
17 17 17
(FG) (FG) (FG)
A/D
18 18 18
0-±10V A/D A/D
0-20mA 0-±10V 0-20mA

Name and
Number Description
appearance
1) RUN LED Displays the operating status of the A/D conversion module.
On : Normal operation
Flashing : During offset/gain setting mode
Off : 5 V power supply interrupted or watch dog timer error
2) ERROR LED Displays the error status of the A/D conversion module.
On : Error
Off : Normal operation
Flashing : Error in switch settings
Switch No. 5 of the intelligent function module has been
set to a value other than zero "0".

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Terminal Signal name

number Q64AD Q68ADV Q68ADI
1 V+ V+ I+
CH1 CH1
2 V– V– I–
CH1
3 I+ V+ I+
CH2 CH2
4 SLD V– I–
5 V+ V+ I+
CH3 CH3
6 V– V– I–
CH2
7 I+ V+ I+
CH4 CH4
8 SLD V– I–
9 V+ V+ I+
CH5 CH5
10 V– V– I–
CH3
11 I+ V+ I+
CH6 CH6
12 SLD V– I–
13 V+ V+ I+
CH7 CH7
14 V– V– I–
CH4
15 I+ V+ I+
CH8 CH8
16 SLD V– I–
17 A.G. (ANALOG GND)
18 FG

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4.4 Wiring

The wiring precautions and examples of module connection are provided below.

4.4.1 Wiring precautions

In order to optimize the functions of the A/D conversion module and ensure system
reliability, external wiring that is protected from noise is required.
Please observe the following precautions for external wiring:

(1) Use separate cables for alternating current and external input signals for Q64AD
and Q68ADV (I) in order to avoid A/C surges and induction effects.

(2) Do not mount the cables close to or bundle them with the main circuit line, a high-
voltage cable or a load cable from other than the PLC. This may increase the
effects of noise, surges and induction.

(3) Perform an one-point grounding for shielded lines and the shields of sealed
cables.

(4) A solderless terminal with insulating sleeve cannot be used for the terminal block.
Covering the cable-connection portion of the solderless terminal with a marked
tube or an insulation tube is recommended.

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4.4.2 External wiring

(1) Q64AD

(a) For voltage input

Signal source 0 to ± 10 V 2
+ 15 V
500 k
V+
I+
V–
SLD 500 k – 15 V
GND
1 Shielded

(b) For current input

Signal source 0 to ± 20 mA 2 + 15 V
3 500 k
V+
I+
250
V–
500 k
SLD – 15 V
GND
A.G.
1 Shielded
FG
4 ANALOG GND

1 Use a twisted two core shielded wire for the power wire.
2 Shows input resistance of Q64AD.
3 If current input, always connect to (V +) and (I +) terminals.
4 "A.G." terminal does not normally require wiring. However, it can be used as GND
for compatible equipment ground under the following conditions.
(1) When there is a difference in polarity between "A.G" and "GND for compatible
equipment".
(2) As an alternative for 0 V input when only the + side is open on a ± wire.
5 Always use a ground. In addition, ground the FB of the power supply module.

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(2) Q68ADV

2 + 15 V
500 k
V+
V–
500 k
A.G.
GND – 15 V
FG
1 Shielded ANALOG GND
3

1 Use a twisted two core shielded wire for the power wire.
2 Shows input resistance of Q68ADV.
3 "A.G." terminal does not normally require wiring. However, it can be used as GND
for compatible equipment ground under the following conditions.
(1) When there is a difference in polarity between "A.G" and "GND for compatible
equipment".
(2) As an alternative for 0 V input when only the + side is open on a ± wire.
4 Always use a ground. In addition, ground the FB of the power supply module.

(3) Q68ADI

2 250 + 15 V

I+
I–

A.G.
GND – 15 V
FG
1 Shielded ANALOG GND
3

1 Use a twisted two core shielded wire for the power wire.
2 Shows input resistance of Q68ADI.
3 "A.G." terminal does not normally require wiring. However, it can be used as GND
for compatible equipment ground under the following conditions.
(1) When there is a difference in polarity between "A.G" and "GND for compatible
equipment".
(2) As an alternative for 0 V input when only the + side is open on a ± wire.
4 Always use a ground. In addition, ground the FB of the power supply module.

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4.5 Switch Setting for Intelligent Function Module

The settings for the intelligent function module are performed using the I/O assignment
settings for GPPW.

(1) The intelligent function module switches consist of switches 1 to 5 and are set
using 16 bit data. When the intelligent function module switches are not set, the
default value for switches 1 to 5 is 0.

Table 4.1 Switch setting item

Setting item
Input range setting
Analog input range Input range setting value
H 1
Switch 1 4 to 20 mA 0H
CH4CH3CH2CH1
0 to 20 mA 1H
1 to 5 V 2H
Input range setting 0 to 5 V 3H
– 10 to 10 V 4H
Switch 2 H 0 to 10 V 5H
CH8CH7CH6CH5
User range setting FH

Switch 3 Not used

H
00H : With temperature drift correction
Switch 4 Other than 00H : Without temperature drift correction
00H : Normal mode (A/D conversion processing)
Other than 00H : Offset/gain setting mode

Switch 5 0 : Fixed

Depending on the type of module used, the settings for A/D unit input range are shown
below.
• Q64AD.................. 0H to 5H, FH
• Q68ADV ............... 0H, 2H to 5H, FH
*1 When the setting is 0H, the input operating range will be 0t o 10V.
• Q68ADI................. 0H, 1H, FH

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(2) Operating procedure

Start the settings with GPPW I/O assignment setting screen.

(a) I/O assignment setting screen

Set the following for the slot in which the A/D
conversion module is mounted.
The type setting is required; set other items as
needed.
Type : Select "intelli."
Model name : Enter the module model name.
Points : Select 16 points.
Start XY : Enter the start I/O number for the
A/D conversion module.

(b) Switch setting for intelligent function module

screen
Click on [Switch setting] on the I/O assignment
setting screen to display the screen shown at
left, then set switches 1 to 5.
The switches can easily be set if values are
entered in hexadecimal. Change the entry
format to hexadecimal and then enter the
values.

REMARK
The "Error time output mode" and the "H/W error time CPU operation mode" for the
intelligent function module detailed setting need not be set since they are invalid for
the A/D conversion module.

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4.6 Offset/Gain Settings

Follow the steps below to perform the offset/gain settings. If the utility package is
installed, perform the offset/gain settings according to the procedure described in
Section 5.6.2.

Start

2)
Use the intelligent Set the channel change
function module switch request (YB) to ON.
setting to set the offset/gain
setting mode.

Verify that the mode is set Verify that the channel

to offset/gain setting and change completed flag
the RUN LED is flashing. (XB) is ON.

1)
Add the voltage or current Set the channel change
that will be the offset value. request (YB) to OFF.

Set the offset setting

channel in buffer memory Adjust other YES
address 22 (Un\G22). channels? 1)
Set buffer memory address
23 (Un\G23) to 0. NO

Turn the channel change Set the offset/gain setting

request (YB) to ON. request (YA) to ON and
perform the offset/gain
settings. Register to the
A/D conversion module.

Verify that the channel After verifying that the offset/

change completed flag gain setting mode status flag
(XB) is ON. (XA) is OFF, turn Y0A OFF.

Set the channel change Verify that the offset/gain

request (YB) to OFF. setting mode status flag
(XA) is ON.

Add the voltage or current

that will be the gain value. YES
ERROR LED lit? 2)

NO
Set the gain setting channel
in buffer memory address 23
(Un\G23). Set buffer memory
address 22 (Un\G22) to 0. End

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POINT
(1) Perform the offset/gain settings in the range that satisfies the conditions
specified in Section 3.1.2, (1) and (2).
When the setting exceeds this range, the maximum resolution or total accuracy
may not be within the range indicated in the performance specification.
(2) Perform the offset/gain settings separately for each channel. If channels are
set in buffer memory addresses 22 (Un\G22) and 23 (Un\G23) at the same
time, an error will occur and the ERROR LED will be lit.
(3) After the offset/gain settings are completed, verify that the offset and gain
values have been set correctly under actual usage conditions.
(4) The offset/gain values are stored in the module, and will not be erased even
the power is shut off.

REMARK
This program switches the channels where the offset/gain settings are performed
and writes the offset/gain values to the A/D conversion module.
In this example, the I/O signals for the A/D conversion module are X/Y0 to X/YF.
• Channel selection ......................................................................... M0
• Offset setting ................................................................................. M1
• Gain setting ................................................................................... M2
• Channel change command .......................................................... M3
• Offset/gain setting value write command to the module .............. M4
Switch to the channel where offset/gain settings will be performed
M0
0 MOVP H1 D0
CH selection Channel
selection

M1 M2 X0A
23 T0 U0 K22 D0 K1 Write the channel where offset
Offset Gain Offset/gain Channel setting is performed.
selection selection setting mode selection

T0 U0 K23 K0 K1

M2 M1 X0A
51 T0 U0 K23 D0 K1 Write the channel where gain
Gain Offset Offset/gain Channel setting is performed.
selection selection setting mode selection

T0 U0 K22 K0 K1

M3 X0B
79 SET Y0B
Channel- Channel- Channel- Set Y0B (channel change
change change change request) from ON to OFF, then
selection completed flag request switch to the channel where
offset/gain settings will be
X0B performed.
82 RST Y0B
Channel- Channel-
change change
completed flag request
Register the results of the offset/gain settings to the module
M4
84 SET Y0A
User-range User-range
writing change
selection request
X0A
108 RST Y0A
Offset/gain User-range
setting change
mode request

110 END

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MEMO

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5 UTILITY PACKAGE (SW0D5C-QADU-E)
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5 UTILITY PACKAGE (SW0D5C-QADU-E)

5.1 Utility Package Functions

Table 5.1 shows an overview of the utility package functions.

Table 5.1 Utility package (SW0D5C-QADU-E) function list

Item Description Reference section
(1) Sets the following items that require initial setting.
• CH A/D conversion enable/disable setting
• CH Sampling process/averaging process setting
• CH Time/number of times specifying
Initial Setting 1 • CH Average time/average number of times setting Section 5.4
(2) The data for which initial setting has been completed is registered in
the parameters for the PLC CPU, and automatically written to the
A/D conversion module when the PLC CPU changes to the RUN
status.
(1) Sets automatic refresh for the A/D conversion module buffer
5
memory.
Automatic Refresh
(2) The buffer memory that was set for automatic refresh is Section 5.5
Settings 1
automatically read and written to the specified device when the
END command for the PLC CPU is executed.
(1) Monitor/test
The buffer memory and I/O signals for the A/D conversion modules
are monitored and tested.
(2) Operating condition setting
Monitor/test Changes the A/D operating status during operation. Section 5.6
(3) Offset/gain setting
When setting the offset/gain to a value selected by the user (when
the analog output range setting is user range setting), the offset and
gain can be easily set while viewing the screen.

POINT
1 If initial setting and automatic refresh setting are performed, the intelligent
function module parameters require a maximum of 76 bytes per module.

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5.2 Installing and Uninstalling the Utility Package

For installing and uninstalling SW0D5C-QADU-E, see the GPP Function Software for
Windows Package SW D5C-GPPW-E Operating Manual (Startup).

5.2.1 User precautions

The following provides the precautions on using the SW0D5C-QADU-E:

(1) Important safety information

Since SW0D5C-QADU-E is add-on software for GPPW, read "Safety Precautions"
and the basic operating procedures in GPPW's operating manual.

(2) About installation

The SW0D5C-QADU-E is an add-on package for SW4D5-GPPW-E (V) or later
versions. Therefore, install SW0D5C-QADU-E in a peripheral device in which
SW4D5-GPPW-E or a later version has been installed.

(3) About the license-key diskette

The license-key diskette is required to install or uninstall SW0D5C-QADU-E.
Please keep the diskette in a safe location.

(4) About display-screen errors while using the intelligent function

module utility
There may be cases in which the screen will not properly display while the
intelligent function module utility is being used, due to a lack of system resources.
If this occurs, close the intelligent function module utility first and then GPPW
(program, comments, etc.) and other applications. Next, restart GPPW and the
intelligent function module utility.

(5) To start the intelligent function module utility

(a) In GPPW, select "QCPU (Q mode)" for the PLC series and specify the
project.
If something other than "QCPU (Q mode)" is selected for the PLC series, or if
the project is not specified, the intelligent function module utility will not start.
(b) Multiple intelligent function module utilities can be started.
However, the [Open file]/[Save file] intelligent function module's parameter
operations can only be performed by a single intelligent function module
utility. Other intelligent function module utilities can perform the [Monitor/test]
operation only.

(6) How to switch screens when two or more intelligent function

module utilities are started
When two or more intelligent function module utility screens cannot be displayed
side by side, use the task bar to change the intelligent function module utility
screen so that it is displayed on top of other screens.

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5.2.2 Operating environment

This section describes the operating environment of the SW0D5C-QADU-E.

Item Peripheral devices
Installation (Add-on) 1 Add-on to SW4D5-GPPW-E or later
Language 2 Install with SW4D5-GPPW-E
CPU Pentium 133 MHz or faster recommended
Memory 32 MB or more recommended
Free For installation (HD) Minimum 3 MB
space For execution (Virtual memory) Minimum 10 MB
Display 800 600 pixels or higher resolution
Operating system Microsoft Windows 95, Microsoft Windows 98, Microsoft Windows NT
Workstation 4.0
1 SW0D5C-QADU-E cannot be installed with SW0D5C-GPPW-E, SW1D5C-GPPW-E, SW2D5C-GPPW-E
and SW3D5C-GPPW-E.
2 Please install SW0D5C-QADU-E with a software package of the same language.
SW0D5C-QADU-E (English version) cannot be installed with SW4D5C-GPPW (Japanese version), and
SW0D5C-QADU-E (Japanese version) cannot be installed with SW4D5C-GPPW-E (English version).

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5.3 Explanation of Utility Package Operation

5.3.1 How to perform common utility package operations

(1) Available control keys

Special keys that can be used during operation of the utility package and their
applications are shown in the table below.
Name of key Application
Cancels a newly entered value when entering data in a cell.
Esc
Closes the window.
Tab Moves between controls in the window.
Used in conjunction with the mouse when multiple cells are
Ctrl
selected in the selection test.
Deletes the character where the cursor is positioned.
Alt
When a cell is selected, clears all of the setting contents.
Deletes the character where the cursor is positioned.
Delete
When a cell is selected, clears all of the setting contents.
Back
Deletes the character where the cursor is positioned.
Space

Moves the cursor.

Page
Moves the cursor one page up.
Up

Page
Moves the cursor one page down.
Down

Enter Confirms the value entered in the cell.

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(2) Data to be created with the utility package

The data and files shown below that are created with the utility package are also
processed using GPPW operation. Figure 5.1 shows which operation processes
which data or file.

<Intelligent function module parameters>

(a) This data is created with the automatic refresh setting, and stored in the
intelligent function module parameter file of the project to be created using
GPPW.
Project
Program
Parameter
PLC Parameter
Network Parameter
Intelligent Function Module Parameter

(b) Steps 1) to 3) shown in Figure 5.1 are performed using the following
operations.

1) Operating from GPPW.

[Project] [Open existing project] / [Save project] / [Save project as]
2) Operating from the utility parameter setting module selection screen.
[File] [Open file] / [Save file]
3) Operating from GPPW.
[Online] [Read from PLC] / [Write to PLC] "Intelligent function
module parameters"
Or, operate from the utility parameter setting module selection screen.
[Online] [Read from PLC] / [Write to PLC]

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<Text file>
(a) A text file is created by performing the initial setting or automatic refresh
setting, or selecting text file creation in the monitor/test screen. The text
files can be utilized to create user documents.

GPPW/QADU Disk
Project Project

1)

A 2) A

Personal computer

3)
QCPU
Q25HCPU
MODE.
RUN.
ERR.
A : Indicates an intelligent
USER. function module parameter.
BAT.
BOOT.
B : Indicates the data
saved by text file creation.
A

USB

RS-232

Figure 5.1 Correlation chart for data created using the utility package

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5.3.2 Operation overview

GPPW screen

[Tools] – [Intelligent function utility] – [Start]

Intilligent function module parameter

setting module select screen

Enter "Start I/O No.", then select "Package name" and "Module model name".
See Section 5.3.3
1)
Initial setting Auto refresh

Initial setting screen Automatic refresh settings screen

See Section 5.5

See Section 5.4

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1)
[Online] – [Monitor/test]

Select monitor/test module screen

Enter "Start I/O No.", then select "Package name" and "Module model name".

Monitor/test screen

See Section 5.5

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5.3.3 Starting the intelligent function module utility

[Purpose of setting]
Start the intelligent function module utility from GPPW, and display the module
selection screen for the intelligent function module utility parameter setting. The
screens for performing initial setting, automatic refresh setting and monitor/test
module selection (selecting the module for which monitoring/testing is to be
performed) can be started from this screen.

[Startup procedure]
[Tools] [Intelligent function utility] [Start]

[Setting screen]

[Explanation of items]
(1) How to start each screen
(a) Starting initial setting
"Start I/O No. " "Package name" "Module model name"
Initial setting
(b) Starting automatic refresh setting
"Start I/O No. " "Package name" "Module model name"
Auto refresh
(c) Monitor/test module selection screen
Online Monitor/test
Enter the start I/O numbers in hexadecimal.

(2) Explanation of screen command buttons

Delete Deletes the initial setting and automatic refresh setting for the
selected module.
Exit Ends the Intelligent function module utility.

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(3) Menu bar

(a) File items
With file operation, the intelligent function module parameters for the project
opened by GPPW can be processed.
[Open file] : Reads the parameter file.
[Close file] : Closes the parameter file. If revisions were made, the
dialog box asking whether to save the file appears.
[Save file] : Saves the parameter file.
[Delete file] : Deletes the parameter file.
[Exit] : Ends the intelligent function module utility.

(b) Online items

[Monitor/test] : Starts the monitor/test module selection screen.
[Read from PLC] : Reads the intelligent function module parameters from
the CPU module.
[Write to PLC] : Writes the intelligent function module parameters to the
CPU module.

POINT
(1) Saving the intelligent function module parameter files
Since files cannot be saved using the GPPW project save operation, save the
files using the module selection screen for intelligent function module
parameter setting described above.

(2) Reading from and writing to PLC operations for the intelligent function module
parameters using GPPW
(a) After the intelligent function module parameters are saved in a file, they
can be read from and written into the PLC.
(b) Set the target PLC CPU using GPPW [Online] [Transfer setup].

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5.4 Initial Setting

[Purpose of setting]
The following A/D initial setting parameters are set:
• A/D conversion enable/disable setting
• Sampling process/averaging process setting
• Time/number of times specifying
• Average time/average number of times setting
By performing these initial settings, the sequence program settings are not required.

[Startup procedure]
"Start I/O No. " "Package name" "Module model name" Initial setting

[Setting screen]

[Explanation of items]
(1) Setting contents
Set whether A/D conversion is enabled or disabled and the A/D conversion
method for each channel.

(2) Explanation of command buttons

Make text file Outputs the screen display in text file format.

End setup Confirms the setting data and ends the operation.

Cancel Cancels the setting data and ends the operation.

POINT
Initial settings are stored in the intelligent function module parameters. After the
initial settings are written to the CPU module, they are validated by operating the
RUN-STOP switch as follows, STOP RUN STOP RUN, turning the power
OFF and then ON, or resetting the CPU module.
When using a sequencer program to write the initial settings, when the CPU is
switched from STOP to RUN the initial settings will be written, So ensures that
programming is carried out to re-execute the initial settings.

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5.5 Automatic Refresh Settings

[Purpose of setting]
Sets the buffer memory for the A/D conversion module to be automatically
refreshed.

[Startup procedure]
"Start I/O No. " "Package name" "Module model name" Auto refresh

[Setting screen]

[Explanation of items]
(1) Contents of the screen display
Model side Buffer size : Displays the size of the buffer memory for the
setting item that can be transferred (fixed at
one word).
Model side Transfer word count : Displays the number of words to transfer the
CPU device from the head device (fixed at
one word).
Transfer direction : " " indicates that data is written from the
device to the buffer memory.
" " indicates that data is read from the buffer
memory to the device.
PLC side Device : Enter the device at the CPU module to be
automatically refreshed.
The devices that can be used are X, Y, M, L,
B, T, C, ST, D, W, R, ZR. When using bit
devices, K, Y, M, L or B, set a number that
can be divided by 16 points (examples: X10,
Y120, M16).
Also, buffer memory data is stored in 16 point
blocks starting from the device number that
was set. For example, if X10 is set, data will
be stored from X10 to X1F.

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(2) Explanation of command buttons

Make text file A file containing the screen contents is created in text file
format.
End setup Confirms the setting data and ends the operation.

Cancel Cancels the setting data and ends the operation.

POINT
The automatic refresh settings are stored in the intelligent function module
parameters. After the automatic refresh settings are written to the CPU module,
they are validated by performing STOP RUN STOP RUN operations for the
CPU module, turning the power OFF and then ON, or resetting the CPU module.
The automatic refresh settings cannot be changed from the sequencer program.
However, it is possible to add a process similar to automatic refresh by using the
FROM/TO instructions of the sequence program.

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5.6 Monitor/Test

5.6.1 Monitor/test screen

[Purpose of setting]
Buffer memory monitoring/testing, I/O signals monitoring/testing, operating condition
setting, offset/gain settings (see Section 5.6.2) are started from this screen.

[Startup procedure]
Monitor/test module selection screen "Start I/O No. " "Package name"
"Module model name" Monitor/test
Enter the start I/O numbers in hexadecimal.

[Setting screen]

1)

X/Y monitor/test Max value/min value info.

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1)

Operating condition setting Offset/gain setting

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[Explanation of items]
(1) Contents of screen display
Setting item : The I/O signal or buffer memory names are displayed.
Current value : The I/O signal status or current value of buffer memory are
monitored.
Setting value : Select or enter the data to be written during test operation.

(2) Explanation of the command buttons

Current value display The current value of the selected item is displayed.
(This is used to check text that cannot be displayed in
the current value field. However, in this utility package,
all items can be displayed in the display fields).
Make text file Creates a file consisting of the screen contents in text file
format.
Start monitor / Selects whether or not the current value fields are
monitored.
Stop monitor
Select test Performs a test of the selected item. To select more
than one item, select multiple items while holding down
the Ctrl key.
Close Closes the screen currently displayed and returns to
the previously displayed screen.

POINT
If the selection test operation is performed while deleting the setting value using the
Delete key (the setting value field is blank), the message "Completed" will be
displayed but write operation will not be performed.

REMARK
The following describes an example where sampling process for the selection test
operation is changed to a 10-time averaging process setting.
(1) Set averaging process in the setting value field for CH Sampling
process/Averaging process setting.
(2) Set number of times in the setting value field for CH Time/number of times
specifying.
(3) Click the setting value field for CH Average time/average number of times
setting to select.
(4) After entering the average number of times, press the Enter key.
At this point, nothing has been written to the A/D conversion module.
(5) Select the setting value fields that were specified in steps 1 to 4 while holding
down the Ctrl key.
(6) Click Select test to execute write operation.
Once writing has been completed, the value that was written will be displayed in
the present value field.

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5.6.2 Offset/gain setting operation

Perform the offset/gain setting operation in the following sequence.

(1) Switch to the offset/gain setting mode

Change switch 4 for intelligent function module switch setting to the offset/gain
setting mode (see Section 4.5).

(2) Switch to the offset/gain setting screen

Display the offset/gain setting screen using the operation described in Section
5.6.1.

(3) Adjustment of the offset and gain values

(a) Set the analog input value for the offset value
Add the voltage or current that will determine the offset value to the channel
to be set.
(b) Select the channel for which the offset value is to be adjusted
Make the selection from the offset/gain setting channel field, and then click
on the Select test button.

(c) Set the analog input value for the gain value
Add the voltage or current that will determine the gain value to the channel
to be set.
(d) Select the channel for which the gain value is to be adjusted
Make the selection from the offset/gain setting channel field, and then click
on the Select test button.

(e) To set the offset/gain for more than one channel, repeat steps (a) to (d).

(4) Write the offset/gain setting values to the module

Write the offset/gain settings to the module after completing the settings for all
channels using the user range setting. Note that if settings are written while
offset/gain settings are incomplete, the status at that point will be written to the
module.
(a) Write to the A/D conversion module
Select "Write requested" from the setting value field for the offset/gain
setting write request, and then click on the Select test button.

(b) Confirm execution of write operation

Confirm that the current value field display for the offset/gain module write
request changes from "Write request" to "No write request".
(c) Error handling
Confirm that the ERROR LED for the A/D conversion module is off. If the
ERROR LED is lit, click on Close , check the error code on the monitor
screen, and then perform the offset/gain settings again.

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6 PROGRAMMING

Using a sample system configuration shown below, details of the A/D conversion
module program are explained in the following two scenarios: when the utility package
is used and when the utility package is not used.

System configuration used in the program explanation

(1) System configuration

Power supply module

QnCPU

Q64AD

QY10
QX10

X/Y0 X10 Y20

to to to
X/YF X1F Y2F

(2) Program conditions

This program reads the digital output values that have been A/D converted using
CH 1 to CH3 of the Q64AD. CH1 performs sampling processing, CH2 performs
averaging processing every 50 times, and CH3 performs averaging processing 6
every 1000 ms. An error code appears in BCD format if a write error occurs.

(a) Contents of initial setting

• A/D conversion enable channel
........................................CH1 to CH3
• Channel performing averaging processing using number of times
........................................The average number of times set for CH2 is 50.
• Channel performing averaging processing using time
........................................The average time set for CH3 is 1000 ms

(b) Devices used by the user

• Error reset signal ................................................................ X10
• Input signal for digital output value read command ........... X11
• Error code display (3-digit BCD) ........................................ Y20 to Y2B
• CH1 digital output value ..................................................... D11
• CH2 digital output value ..................................................... D12
• CH3 digital output value ..................................................... D13
• Error code ......................................................................... D14

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6.1 Programming Example Using the Utility Package

6.1.1 Operating the utility package

(1) Initial setting (see Section 5.4)

Set channel 1 to sampling processing, channel 2 to averaging processing for 50
times and channel 3 to averaging processing for 1000 ms.

(2) Auto refresh setting (see Section 5.5)

Set the digital output values and error codes for CH1 to 3.

(3) Writing the intelligent function module parameters (see Section

5.3.3)
Write the intelligent function module parameters to the CPU module.
This operation is performed using the parameter setting module selection screen.

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6.1.2 Programming example

Digital output value read processing

X11 X0 X0E
0 MOV D11 D101
Read Module A/D CH1 Digital
digital READY conversion output
values completed Transfer digital output values D11
flag to D13 read using automatic
MOV D12 D102
CH2 Digital refresh to D101 to D103 after A/D
output conversion is completed.

MOV D13 D103

CH3 Digital
output
Error code display and reset processing
X10 X0F
26 BCD D14 K3Y20 Output the error code to Y20 to
Error Error Error code Y2B by BCD code.
reset flag
signal
SET Y0F
Error clear
request
Clear the error code.
Y0F X0F
49 RST Y0F
Error Error Error clear
reset flag request
request

52 END

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6.2 Programming Example without Using the Utility Package

(1) Programming example using the FROM/TO commands

Set the A/D conversion enabled channel (initial setting)
X0
0 T0 H0 K0 H8 K1 CH1 to CH3 are A/D conversion
Module enabled
READY

T0 H0 K2 K50 K1 Set the average number of times

for CH2 to 50 times

T0 H0 K3 K1000 K1 Set the average time for CH3 to

1000 ms

T0 H0 K9 H604 K1 Specify averaging processing

SET Y9
Operating
condition Set Y9 (operating condition
setting request setting request) from ON to OFF
Y9 X9 and enable the initial setting
101 RST Y9
Operating Operating Operating
condition condition condition
setting setting completed setting request
request
Digital output value read processing
X11 X0 X0E
104 FROM H0 K11 D11 K1
Read Module A/D CH1
digital READY conversion Digital
values completed output
flag Read digital output values for
FROM H0 K12 D12 K1
CH1 to 3
CH2
Digital
output
FROM H0 K13 D13 K1
CH3
Digital
Error code display and reset processing output
X10 X0F
139 FROM H0 K19 D14 K1
Error Error Error code
reset flag Output the error code to Y20
signal to Y2B by BCD code.
BCD D14 K3Y20
Error code

SET Y0F
Error clear
request
Clear the error code.
Y0F X0F
167 RST Y0F
Error Error Error clear
clear flag request
request

170 END

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(2) Programming example using the intelligent function module device

(U \G )
Set the A/D conversion enabled channel (initial setting)
X0 U0\
0 MOV H8 G0 CH1 to CH3 are A/D conversion
Module enabled
READY

U0\
MOV K50 G2 Set the average number of times
for CH2 to 50 times

U0\
MOV K1000 G3 Set the average time for CH3 to
1000 ms

U0\
MOV H604 G9 Specify averaging processing

SET Y9
Operating
condition Set Y9 (operating condition
setting request setting request) from ON to OFF
Y9 X9 and enable the initial setting
99 RST Y9
Operating Operating Operating
condition condition condition
setting setting completed setting request
request
Digital output value read processing
X11 X0 X0E U0\
102 MOV G11 D11
Read Module A/D CH1
digital READY conversion Digital
values completed output
flag U0\
MOV G12 D12 Read digital output values for
CH1 to 3
CH2
Digital
output
U0\
MOV G13 D13
CH3
Digital
Error code display and reset processing output
X10 X0F U0\
134 BCD G19 K3Y20
Error Error Error code
reset flag Output the error code to
signal Y20 to Y2B by BCD code
SET Y0F
Error clear
request

Y0F X0F
158 RST Y0F
Error Error Error clear
clear flag request
request

161 END

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7 TROUBLESHOOTING

The following section explains the types of errors that may occur when the A/D
conversion module is used, and how to troubleshoot such errors.

7.1 Error Code List

If an error occurs in the A/D conversion module while writing to or reading data from
the PLC CPU, the applicable error code is written to buffer memory address 19
(Un\G19).

Table 7.1 Error code list

Error code
Error description Processing
(decimal)
The input range is set an illegal value using the
Reset to the correct parameter with GPPW
10 intelligent function module switch in GPPW.
parameter setting. (See Section 4.5.)
indicates the incorrectly specified channel number.
Turn the power OFF and ON again. If the error
occurs again, the module may be malfunctioning.
111 Module error at startup.
Contact the nearest distributor or branch office with
the description of the problem.
The average time setting value for buffer memory
addresses 1 to 8 (Un\G1 to Un\G8) is outside the Reset the average time setting to a value within the
20
range of 2 to 5000 ms. indicates the incorrectly range of 2 to 5000 ms.
specified channel number.
The average number of times setting value for buffer
memory addresses 1 to 8 (Un\G1 to Un\G8) is Reset the average number of times setting value to 7
30
outside the range of 4 to 62500 times. indicates within the range of 4 to 62500 times.
the incorrectly specified channel number.
The offset value is equal to or larger than the gain
Reset so that the offset value becomes smaller than
40 value. indicates the error causing channel
the gain value.
number.
The offset/gain channels were set at the same time
Reset the contents of buffer memory addresses 22
500 during offset and gain value settings, or both were
and 23 (Un\G22 and Un\G23).
set to 0.

POINT
(1) If more than one error occurs, the error code first detected by the A/D
conversion module is stored. No other error codes will be stored.
(2) The error can be cleared by setting the error clear request (YF) to "ON".

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7.2 Troubleshooting

7.2.1 When the "RUN" LED is flashing or turned off

(1) When flashing

Check item Corrective action
Reset switch 4 of the intelligent function module setting for
Is the mode set to the offset/gain setting mode?
GPPW to the normal mode (see Section 4.5).

(2) When off

Check item Corrective action
Confirm that the supply voltage for the power supply module
Is the power being supplied?
is within the rated range.
Calculate the current consumption of the CPU module, I/O
Is the capacity of the power supply module adequate? module and intelligent function module mounted on the base
unit to see if the power supply capacity is adequate.
Reset the PLC CPU and verify that it is lit. If the RUN LED
does not light even after doing this, the module may be
Has a watchdog timer error occurred?
malfunctioning. Contact the nearest distributor or branch
office with a description of the problem.
Is the module correctly mounted on the base unit? Check the mounting condition of the module.

7.2.2 When the "ERROR" LED is on or flashing

(1) When on
Check item Corrective action
Confirm the error code and take corrective action described
Is an error being generated?
in Section 7.1.

(2) When flashing

Check item Corrective action
Is intelligent function module setting switch 5 set to "other Using GPPW parameter setting, set intelligent function
than 0"? module setting switch 5 to "0" (see Section 4.5).

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7.2.3 When the digital output values cannot be read

Check item Corrective action

Is there any fault with the analog signal lines such as Check for faulty condition of the lines visually and perform a
disconnection? continuity check of the signal lines.
Is the CPU module in the STOP status? Set the CPU module to the RUN status.
Verify that the offset/gain settings are correct (see Sections
4.6 and 5.6.2).
If the user range is being used, switch to a different default
Are the offset/gain settings correct?
input range and check if A/D conversion is correctly
performed. If it is correctly performed, redo the offset/gain
settings.
Check buffer memory addresses 20 and 21 (Un\G20 and
Un\G21) in GPPW system monitor.
Is the input range setting correct?
If the input range setting is incorrect, redo the GPPW
intelligent function module switch setting (see Section 4.5).
Check the ON/OFF status with buffer memory 0 (Un\G0) in
Is the A/D conversion enable/disable setting for the channel
GPPW system monitor and review the initial setting of the
that was input set to A/D conversion disabled?
sequence program or utility package (see Section 3.4).
From GPPW, set the operating condition setting request (Y9)
from ON to OFF, and check that the digital output values are
Has the operating condition setting request (Y9) been
stored in buffer memory addresses 11 to 18 (Un\G11 to
executed?
Un\G18). If so, review the initial setting of the Sequence
program or utility package (see Section 3.3).

7-3
7 TROUBLESHOOTING
MELSEC-Q

7.2.4 Checking the A/D conversion module status using GPPW system monitor

When the A/D conversion module detail information is selected in GPPW system
monitor, error codes and LED status can be checked.

(1) Operating GPPW

[Diagnostics] [System monitor] "Select A/D conversion module"
Module Detailed Information

(2) Checking the error codes using Module's detailed information

The error code stored in memory address 19 (Un\G19) of the A/D conversion
module buffer is displayed in the latest error code field shown in the figure below.
(When the Error History button is pressed, the contents displayed in the latest
error code field are displayed in the No. 1 field.)

(3) Checking the LED status using H/W information

The LED status is displayed in the mounting field under the H/W LED
information.
No. LED name Status
1 RUN LED 0000H : Indicates that LED is unlit.
2 ERROR LED 0001H : Indicates that LED is lit

7-4
APEENDIX
MELSEC-Q

APPENDIX

Appendix 1. External Dimension Diagram

(1) Q64AD

Q64AD
RUN

ERROR

V+ 1
C V- 2
H
1
I+ 3
SLD 4
V+ 5

98 (3.86)
C
H
V- 6
2 I+ 7
SLD
8
V+
9
C V-
H 10
3 I+
11
SLD

V+
12
V-
13
C
H
4 I+
14
SLD 15
A.G.
16
17
(FG)
18
A/D
0-±10V
0-20mA

90 (3.55) 27.4 (1.08)

(2) Q68ADV

Q68ADV
RUN

ERROR

V+ 1
C
H
1
V- 2 App.
V+ 3
C
H
2
V- 4
V+ 5
C
98 (3.86)

H
3
V- 6
V+ 7
C
H V-
4 8
V+
C 9
H V-
5 10
V+
C
H
11
V-
6
12
V+
C
H
13
7
V-

V+
14
C
H V-
15
8
A.G.
16
17
(FG)
18
A/D
0-±10V

90 (3.55) 27.4 (1.08)

Appendix - 1
APEENDIX
MELSEC-Q

(3) Q68ADI

Q68ADI
RUN

ERROR

I+
1
C
H I- 2
1

I+ 3
C
H
2
I- 4
I+ 5
C

98 (3.86)
H
3
I- 6
I+ 7
C
H I-
4 8
I+
C 9
H I-
5
10
I+
C 11
H I-
6
12
I+
C
H I-
13
7
I+ 14
C
H I- 15
8
A.G.
16
17
(FG)
18
A/D
0-20mA

90 (3.55) 27.4 (1.08)

Appendix - 2
INDEX

[A] [G]
Absolute maximum input................................. 3-1 Gain value ........................................................3-2
Accuracy................................................... 3-1, 3-5 GPPW ............................................................. A-7
A/D conversion completed flag ............3-10, 3-15
A/D conversion enable/disable setting .. 3-6, 3-13 [H]
A/D conversion methods................................. 3-6 Handling precautions .......................................4-1
A/D conversion module................................... A-7
Analog input..................................................... 3-1 [I]
Applicable CPU modules ................................ 2-1 I/O assignment setting .....................................4-8
Automatic refresh settings ..................... 5-1, 5-12 I/O characteristics ............................................3-1
Averaging processing setting........................ 3-14 Input range ............................................. 3-16, 4-8
Averaging processing...................................... 3-6 Install ................................................................5-2
Intelligent function module parameter.............5-5
[B] Intelligent function module utility
Buffer memory............................................... 3-12 parameter setting .............................................5-7
Internal current consumption...........................3-1
[C]
Channel change completed flag ................... 3-10 [L]
Channel change request............................... 3-11 License-key diskette ................................ A-8, 5-2
CH Average time/ List of I/O signals .............................................3-8
average number of times .............................. 3-13
Close file ........................................................ 5-10 [M]
Conversion speed ........................................... 3-1 Maximum and minimum values
Current input characteristics ........................... 3-4 hold function.....................................................3-6
Maximum and minimum values
[D] storage area ...................................................3-17
Delete file....................................................... 5-10 Maximum resolution.........................................3-1
Digital output values ...................................... 3-15 Maximum value/minimum value
Digital output.................................................... 3-1 reset request ..................................................3-11
Monitor/test.....................................................5-14
[E]
EMC directive .................................................. A-8 [N]
Error clear request......................................... 3-11 Number of occupied points..............................3-1
Error code list .................................................. 7-1
ERROR LED ................................................... 4-3 [O]
Error flag ........................................................ 3-10 Offset value ......................................................3-2
External dimension diagram ......................App.-1 Offset/gain setting mode flag...........................3-9
External wiring ................................................. 4-6 Offset/gain setting mode................................3-17
Offset/gain settings .....................4-10, 5-15, 5-17
Open file .........................................................5-10
Operation condition setting............................5-15
Operating condition setting completed flag.....3-9
Operating condition setting request ..............3-11
Operating environment ....................................5-3

Index - 1
[P]
Part identification nomenclature ..................... 4-3
Programming................................................... 6-1

[Q]
Q64AD ............................................................. 1-1
Q68ADI ............................................................ 1-1
Q68ADV........................................................... 1-1
QCPU (Q mode).............................................. A-7

[R]
Read from PLC.............................................. 5-10
RUN LED......................................................... A-7

[S]
Sampling processing....................................... 3-6
Save file ......................................................... 5-10
Setting ranges ............................................... 3-16
Setup and procedures before operation......... 4-2
Switch setting for intelligent function
module ............................................................. 4-8

[T]
Temperature drift compensation function....... 3-6
Temperature drift compensation flag.............. 3-9
Text file ............................................................ 5-6
Transfer setup ............................................... 5-10
Troubleshooting............................................... 7-1

[U]
Uninstall ........................................................... 5-2
Module READY ............................................... 3-9
Module selection screen for the intelligent
function module utility parameter setting........ 5-7
Module range write request .......................... 3-11
Utility package ................................................. 5-1

[V]
Voltage input characteristics ........................... 3-3

[W]
Weight.............................................................. 3-1
Windows .......................................................... A-7
Write data error codes................................... 3-16
Write to PLC .................................................. 5-10

[X]
X/Ymonitor/test.............................................. 5-14

Index - 2
MEMO

Index - 3
WARRANTY

Please confirm the following product warranty details before starting use.

1. Gratis Warranty Term and Gratis Warranty Range

If any faults or defects (hereinafter “problems”) found to be the responsibility of Mitsubishi occurs during use of the product within
the gratis warranty term, the product shall be repaired at no cost via the dealer or Mitsubishi Service Company.
Note that if repairs are required at a site overseas, on a detached island or remote place, expenses to dispatch an engineer shall
be charged for.
[Gratis Warranty Term]
The gratis warranty term of the product shall be for one year after the date of purchase or delivery to a designated place.
Note that after manufacture and shipment from Mitsubishi, the maximum distribution period shall be six (6) months, and the
longest gratis warranty term after manufacturing shall be eighteen (18) months. The gratis warranty term of repair parts shall
not exceed the gratis warranty term before repairs.
[Gratis Warranty Range]
(1) The range shall be limited to normal use within the usage state, usage methods and usage environment, etc., which follow
the conditions and precautions, etc., given in the instruction manual, user’s manual and caution labels on the product.
(2) Even within the gratis warranty term, repairs shall be charged for in the following cases.
1. Problems occurring from inappropriate storage or handling, carelessness or negligence by the user. Problems caused
by the user’s hardware or software design.
2. Problems caused by unapproved modifications, etc., to the product by the user.
3. When the Mitsubishi product is assembled into a user’s device, trouble that could have been avoided if functions or
structures, judged as necessary in the legal safety measures the user’s device is subject to or as necessary by
industry standards, had been provided.
4. Problems that could have been avoided if consumable parts (battery, backlight, fuse, etc.) designated in the
instruction manual had been correctly serviced or replaced.
5. Problems caused by external irresistible forces such as fires or abnormal voltages, and problems caused by force
major such as earthquakes, lightning, wind and water damage.
6. Problems caused by reasons unpredictable by scientific technology standards at time of shipment from Mitsubishi.
7. Any other trouble found not to be the responsibility of Mitsubishi or the user.

2. Onerous repair term after discontinuation of production

(1) Mitsubishi shall accept onerous product repairs for seven (7) years after production of the product is discontinued.
Discontinuation of production shall be notified with Mitsubishi Technical Bulletins, etc.
(2) Product supply (including repair parts) is not possible after production is discontinued.

3. Overseas service
Overseas, repairs shall be accepted by Mitsubishi’s local overseas FA Center. Note that the repair conditions at each FA Center
may differ.

4. Exclusion of chance loss and secondary loss from warranty liability

Regardless of the gratis warranty term, Mitsubishi shall not be liable for compensation to damages caused by any cause found
not to be the responsibility of Mitsubishi, chance losses, lost profits incurred to the user by problems with Mitsubishi products,
damages and secondary damages caused from special reasons regardless of Mitsubishi’s expectations, compensation for
accidents, and compensation for damages to products other than Mitsubishi products and other duties.

5. Changes in product specifications

The specifications given in the catalogs, manuals or technical documents are subject to change without prior notice.

6. Product application
(1) In using the Mitsubishi MELSEC programmable logic controller, the usage conditions shall be that the application will not
lead to a major accident even if any problems or faults should occur in the programmable logic controller device, and that
backup and fail-safe functions are systematically provided outside of the device for any problems or fault.
(2) The Mitsubishi general-purpose programmable logic controller has been designed and manufactured for applications in
general industries, etc. Thus, applications in which the public could be affected such as in nuclear power plants and other
power plants operated by respective power companies, and applications in which a special quality assurance system is
required, such as for Railway companies or the Department of Defense shall be excluded from the programmable logic
controller applications.
Note that even with these applications, if the user approves that the application is to be limited and a special quality is not
required, application shall be possible.
When considering use in aircraft, medical applications, railways, incineration and fuel devices, manned transport devices,
recreational equipment and safety devices, in which human life or assets could be greatly affected and for which a
particularly high reliability is required in terms of safety and control system, please consult with Mitsubishi and discuss the
required specifications.
 Analog-Digital Converter
Module
User's Manual

MODEL Q-A/D-U-S-E

MODEL 13JR03
CODE

SH(NA)-080055-A(9912)MEE

HEAD OFFICE : MITSUBISHI DENKI BLDG MARUNOUCHI TOKYO 100-8310 TELEX : J24532 CABLE MELCO TOKYO
NAGOYA WORKS : 1-14 , YADA-MINAMI 5 , HIGASHI-KU, NAGOYA , JAPAN

When exported from Japan, this manual does not require application to the
Ministry of International Trade and Industry for service transaction permission.

Specifications subject to change without notice.