Technical Manual
3111
8-Channel
10Ω RTD Input Card
© 2002 - 2016 RTP Corporation
Specifications, information and graphics are subject to change without notice. Contact
RTP’s corporate office for specifics regarding any changes.
Not for reproduction in any printed or electronic media without express written consent
from RTP Corp.
All information, data, graphics and statements in this document are proprietary
intellectual property of RTP Corp. unless otherwise indicated and are to be considered
RTP Corp. confidential. This intellectual property is made available solely for the direct
use of potential or licensed RTP Corp. customers in their application of RTP Corp.
products, and any other use or distribution is expressly prohibited. If you have received
this publication in error, immediately delete, discard or return all copies to RTP Corp.
RTP Corporation
2832 Center Port Circle
Pompano Beach, FL 33064
Phone: (954) 597-5333
Internet: http://www.rtpcorp.com
Last Updated: 4/4/2018
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TABLE OF CONTENTS
INTRODUCTION ........................................................................................ 4
SPECIFICATIONS ..................................................................................... 5
FAILURE RATES IN ACCORDANCE TO IEC 61508 ............................... 6
CABLING......................... .......................................................................... 6
NetArrays Configuration ................................................................................. 9
Redundant Card ID .................................................................................. 9
Type ......................................................................................................... 9
Float Board Temp .................................................................................. 10
Integer Card Revision............................................................................. 10
Integer Cal Date ..................................................................................... 10
Integer Cal Serial Number ...................................................................... 10
Integer Error Detection ........................................................................... 10
Integer Channel Error Status .................................................................. 11
Channel ................................................................................................. 11
I/O Tag ................................................................................................... 11
Filter ....................................................................................................... 11
Threshold ............................................................................................... 12
Comment ............................................................................................... 12
COMPLIANCE WITH CE MARK ............................................................. 13
ENVIRONMENTAL CONDITIONS .......................................................... 15
REFERENCED COMPANIES .................................................................. 16
DEFINITIONS........................................................................................... 16
3
Introduction
The 3111 8-Channel RTD cards can measure temperatures with eight 3-wire connected
resistance temperature detectors (RTD). The analog input card provides isolation between the
channels and the RTP system. All channels share a single common.
Analog to digital conversion is performed by a 16-bit Sigma-Delta A/D converter. The card also
includes an onboard temperature sensor which automatically compensates the temperature
measurement for higher accuracy. No field adjustments are necessary after the initial factory
setup.
I/O bus checking diagnostics, card address tests, and configuration tests are performed each
time the controller accesses the card. All data and control transfers are performed twice, once
using the actual data and then using the inverted data. Both versions of the data are compared
to verify that all I/O bus data bits are functioning properly. The configuration code from the card is
compared to the I/O configuration to check that the correct card is installed in the rack. I/O Bus
slot address and control signal contention tests also are performed. Any fault detected sets
status bits in an error detection variable returned to the user application program.
An onboard temperature sensor provides a card temperature reading, which can be used to verify
the air flow around the card.
An indicator LED, located near the top of the front panel, indicates the overall health status of the
card. If this LED is on, the card is functioning normally; if it is off, the card is offline. If this LED is
on, but the card is shown in red on the NetArrays IOC screen and cannot be enabled, indicates
an error in the cards calibration data.
4
The 8-Channel RTD card provides a DC-to-DC converter that supplies power to the eight ADCs
with embedded excitation-current sources.
The 3111 card scans at 41 samples per second with a -6dB @ 2Hz double pole filter.
Specifications
Module Safety Integrity Level: Non-interfering with safety rated modules.
Card Address: Determined by the slot of the controller backplane
Number of channels: 8 (3-wire configuration)
Isolation: 500 V Channel to RTP BUS
Type of protection: Digital isolators (magnetic)
Input Signal Range: 0 to 32.67 mV
RTD Type and Range: 10 Copper
–200 °C to +260 °C
1.058 to 19.116
RTD Linearization: Internal (ITS-90: Alpha = 0.00427) or user supplied
RTD Excitation Current:
3-Wire Two 1500 A current sources connected to Sense+ and
Sense –
Maximum permanent allowed
Voltage (no damage): 15 Volts
Reading under overload condition: Reported in error status word.
Common Points between Channels: All channels share a single common
Normal Mode Rejection: -40 dB at 50 Hz
-42 dB at 60 Hz
Type of Input: Differential
Conversion method: Sigma-Delta
Guard Band: > 32.67 mV
Sample Repetition Rate: 24 milliseconds (41 scans per second)
Sample Duration & Settling Time: 24 milliseconds
Input Filter characterization:
Order: Second Order
Transition: -6 dB at 2 Hz
Full Scale Value: 32.67 mV
Analog input error:
Maximum error at 25 °C: ±0.085% of Full Scale Value (±27.8 µV)
Temperature Coefficient: ±0.0068% of Full Scale Value/ ºC (±2.2 µV/ ºC)
Maximum error (0 to 55 °C): ±0.289 % of Full Scale Value (±94.4 µV)
Non-Linearity: ±0.085% of Full Scale Value
Repeatability: ±0.085% of Full Scale Value at fixed temperature
5
Monotonicity with no missing codes: Yes
Note: To insure the stated Analog I/O specifications, you need five
minutes of warm-up time in a stable temperature
environment. In addition, the inputs may not meet the full-
scale accuracy specification at the upper and lower ends of
the extended operating range:
• -20 to 0 °C (-4 to 32 °F)
• 55 to 60 °C (131 to 140 °F)
Resolution: 15 Bits
Value of LSB: 1.14 µV
Power Requirements: +5 VDC @ 300 mA
+24 VDC @ 250 mA
Termination Module Connectors: 37 pin D-Sub connector for use with the 3059/FL Analog
Cables. These cables have a diameter of 0.5 inches (1.27
centimeters) with a minimum bend radius of 4.6 inches
(11.69 centimeters).
Field Wiring Mating Connector: AMP (Tyco) 205209-2 37- Pin D-Sub Connector, Female
Effect of Incorrect Field Wiring: Shorted connection results in static zero readings. Open
connections produce unpredictable readings. Reversed
connections produces normal reading.
Failure Rates in Accordance to IEC 61508
The 3111 RTD input card cannot be used for safety-critical functions. The module is non-
interfering with other safety-critical modules and therefore can be used for non-safety related
functions.
Cabling
Standard length for 3059/FL cable is 5 feet.
You must disable (offline) an I/O card before you can hot-swap it. After you replace an I/O card,
you must enable it to return it to operation. While NetArrays is operating in Debug mode, use the
I/O Configuration Form to disable or enable I/O cards. To hot swap an I/O card, first display the
card’s icon in the I/O Configuration Form. If the I/O card’s icon is red, you can remove it. If the
I/O card’s icon is yellow or green, select the icon and disable it before you remove the card. After
you replace the I/O card, select the card’s icon and re-enable it. The color of the icon changes to
green to indicate the card is online.
Warning! Dangerous high voltages may be present at the cards’ terminal blocks during
normal operation. When you service these cards, avoid contact with exposed voltages
on the card while you connect the field cabling. The field cabling terminal block
connectors also may have high voltages when disconnected from the card.
Warning! Never remove the card from the chassis with the termination cables
connected and the field power applied. Always disconnect the field power and cables
before removing the card from the chassis. Always insert the card into the chassis with
the cables and field power disconnected.
6
USER INTERFACE CONNECTION
3059/FL WIRE 37-PIN SIGNAL
WIRE COLOR CONNECTOR
GROUP PIN
Group 1 SHIELD 18 CH 0(S)
RED 19 CH 0+
BLACK 37 CH 0-
Group 2 SHIELD 35 CH 1(S)
RED 36 CH 1+
BLACK 17 CH 1-
Group 3 SHIELD 15 CH 2(S)
RED 16 CH 2+
BLACK 34 CH 2-
Group 4 SHIELD 32 CH 3(S)
RED 33 CH 3+
BLACK 14 CH 3-
Group 5 SHIELD 12 CH 4(S)
RED 13 CH 4+
BLACK 31 CH 4-
Group 6 SHIELD 29 CH 5(S)
RED 30 CH 5+
BLACK 11 CH 5-
Group 7 SHIELD 9 CH 6(S)
RED 10 CH 6+
BLACK 28 CH 6-
Group 8 SHIELD 26 CH 7(S)
RED 27 CH 7+
BLACK 8 CH 7-
Cable White 6 Cable Detect
Detect White 25 Cable Detect
Figure 1: User Interface Connections for 3111 Card with 3059/FL cable.
NOTE: Cable detect is activated by connecting Pin 6 to Pin 25.
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User Interface Connections
Pin Signal
1 Not Used
2 Not Used
3 Not Used
4 Not Used
5 Not Used
6 Cable Detect
7 Not Used
8 CH-7 Sense -
9 CH-6 Return
10 CH-6 Sense +
11 CH-5 Sense -
12 CH-4 Return
13 CH-4 Sense +
14 CH-3 Sense -
15 CH-2 Return
1500 µA 16 CH-2 Sense +
17 CH-1 Sense -
18 CH-0 Return
19 CH-0 Sense +
20 Not Used
21 Not Used
22 Not Used
23 Not Used
R 24 Not Used
25 Cable Detect
T
26 CH-7 Return
D
27 CH-7 Sense +
28 CH-6 Sense -
29 CH-5 Return
1500 µA 30 CH-5 Sense +
31 CH-4 Sense -
32 CH-3 Return
33 CH-3 Sense +
34 CH-2 Sense -
3000 µA 35 CH-1 Return
36 CH-1 Sense +
37 CH-0 Sense -
Figure 2: User Interface Connections for 3111 Card with user fabricated cable.
NOTE: Cable detect is activated by connecting Pin 6 to Pin 25.
8
NetArrays Configuration
The 3111 RTD card provides eight differential 3-wire resistive temperature device input points.
The channel input data can be accessed as a floating-point engineering units temperature value
or resistance value. NetArrays also returns an error detection status word for the card.
This card provides an input signal range of 0 to 32.67 mV. RTD type selection is provided for
voltage-to-temperature conversion of the channel inputs. Input filter parameters provide signal
conditioning.
Card Properties
Redundant Card ID
The 3111 card does not support redundancy.
Type
Choose either 10-Ohm Copper or None. Select RTD type of 10-ohm Copper for this property to
return channel inputs in units of Degrees Celsius. The voltage-to-temperature conversion is
automatically performed in accordance to ITS-90. If “None” is selected, the input returned for the
channel is a resistance in ohms.
RTD Type Temperature Range
10 Copper 200 to +260 degrees C
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Float Board Temp
The Board Temp is a floating-point value, which equals to the operating temperature in Degrees
Celsius as measured by an on-board sensor. User applications can implement customized limits
for alarms and annunciations by examining the value of this variable. NetArrays assigns a default
Tag to this variable when the card is added to the I/O configuration. Reassign this Tag as
required to access this board temperature in the project program.
Integer Card Revision
The card revision is an integer value, which equals to the revision number of the PLD code.
NetArrays assigns a default Tag to this variable when the card is added to the I/O configuration.
Reassign this Tag as required to access this card revision in the project program.
Integer Cal Date
This is an encoded date when the card was calibrated in the format YYDDD where YY is the last
2 digits of the year and DDD is the day within the year.
Integer Cal Serial Number
This is a serial number recorded when the card was calibrated.
Integer Error Detection
The Error Detection input is an Int Variable that can be used to detect an I/O card failure.
NetArrays assigns a default Tag to this variable when the card is added to the I/O configuration.
A Card Timeout Error (Bit 0) will set the Error Latch bit (Bit14), which will remain set until this bit is
cleared to zero by an operator. While the Error Latch is set, the card will be offline and the target
node will not attempt to communicate with it. Note that most cards do not use all the status bits
shown. Any unused bits will always equal zero.
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
ERR DATA DATA CARD CARD CBL CAL CAL CH TIME
LTCH ERR INV ID ERR ERR HIGH LOW FAIL OUT
Bit 14 Card Error Latch
This status bit indicates that a Card Timeout Error occurred on the I/O card, and that it
has been taken offline. The card will not be initialized or placed online until this bit is
cleared in the project program or operator intervention.
If this bit is set, it must be cleared to return the card to operation. The correct way to
clear this bit is to select the card’s icon in the I/O configuration Form while NetArrays is
operating in Debug mode and answer “Yes” to the Enable prompt. See I/O Card Status
and Control. (It is also possible to change the value of this variable by forcing an Integer
Bit Variable object, with Bit 14 selected in the object's properties, to zero. Do not clear
the entire Error Detection Integer Variable to zero.)
Bit 9 Backplane Bus Data Error
This status bit indicates that a data error was detected in a data or command transfer to
or from an I/O card.
Bit 8 Data Invalid
This status bit indicates that the I/O card is not ready to send valid data.
Bit 7 Card ID Does Not Match I/O Configuration
This bit indicates that the ID code read from the I/O card does not match the card type
specified in the NetArrays I/O configuration.
10
Bit 6 Card Specific Error
This bit indicates an error in the Power that is supplied via backplane (BPEXTV). It could
indicate that the 24 VDC is not generated or supplied externally to the backplane. It
could also indicate a DC-to-DC converter failure, which is on the card.
Bit 5 Cable Detect Error
This bit indicates that one or more of the cables are not connected to the I/O card or
between the I/O card and the termination block.
Bit 3 Cal High
Not Used
Bit 2 Cal Low
Not Used
Bit 1 Channel Failure
This bit indicates that the card has a failure on one or more of its channels. Examine the
channel specific error status word to isolate the failed channel(s).
Bit 0 Card Timeout Error
This bit indicates that there was no response from the I/O card. The card is not returning
a ready test signal, is offline, or has been removed from the chassis. This bit sets the
Card Error Latch (Bit 14).
Integer Channel Error Status
The Channel Error Status is an Int Variable that returns fault indications for channels 0 through 7.
A failure consists of an out-of-range (> 32.67 mV). A 1 indicates an out-of-range is detected on
the channel. NetArrays assigns a default Tag to this variable when the card is added to the I/O
configuration.
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Ch 7 Ch 6 Ch 5 Ch 4 Ch 3 Ch 2 Ch 1 Ch 0
Fault Fault Fault Fault Fault Fault Fault Fault
I/O Channel Properties
Channel
Each input channel can be enabled (Float), or disabled (Disabled). You can disable any unused
channel to avoid scanning unconnected inputs.
I/O Tag
The resistance or temperature measurements of the RTD inputs are assigned to a Floating-point
variable. The card property Type determines if the channel is reported in Ohms or Degrees
Celsius. NetArrays assigns a default Tag to this variable when the card is added to the I/O
configuration.
Note! All unused un-terminated I/O points must be disabled in IO Configuration.
Filter
If required, a triple-cascaded recursive filter is available for each channel. A filter weight must be
assigned to enable the filter for the channel. Enter a weight factor of 10 through 2000. The
filtering effect increases as the weight value increases. The filtering for each cascade can be
expressed as:
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Where: Xn is the input to the filter
Yn is the output from the filter
Yn-1 is a weighted portion of the previous output
Selecting a filter parameter of “None” disables recursive filtering of the channel’s input.
Threshold
This is the value which the filter will reset to the input value. The units are in mV.
Comment
Enter up to 255 characters for comments associated with the corresponding tag. The comments
are informational only and are not required by any RTP NetSuite application.
12
Compliance with CE Mark
This section describes how to install and operate RTP equipment for use in the European Union
(EU) to comply with the requirements of the CE Mark and its referenced standards. The
procedures in this section apply also to other environments where provisions of the EU’s EMC
and Low Voltage Directives are either required or desirable.
RTP Corporation has successfully tested and reviewed its products to the stringent requirements
of the European Union’s EMC Directives (2004/108/EC) and Low Voltage Directive (2006/95/EC).
In order for the equipment to meet the requirements of these directives, the equipment
must be installed and operated in accordance with these instructions.
These tests and reviews are in accordance to EN 61131-2:2007 as listed in the next section.
Information on the tests performed and the standards involved is available from RTP Corporation.
To comply with the requirements of the CE Mark and its referenced standards, the system
integrator, installer, and end user must store, integrate, install, and operate this equipment in
accordance with the following guidelines.
1. Compliance with all product specific instructions (including but not limited to storage
instructions, installation instructions, operating instructions, maintenance instructions,
disposal instructions, and specifications) is required.
2. RTP equipment is rated for use in Installation Category (Overvoltage Category) II and
Pollution Degree 2 environments in accordance with standard IEC 664.
3. To assure that an Operator is not exposed to electrical hazards, all equipment capable of
electrical hazards must be housed in a grounded enclosure (equipment cabinet/rack) that
limits access to the equipment only to Service Personnel. Limited access may include
enclosure doors and side panels, which are locked or require a tool to open. To assure
compliance with the EMC requirements, the equipment must be housed in an enclosure
(equipment cabinet/rack) that provides EMC shielding. Compliance testing was
performed in a shielded equipment rack provided by Hoffman Concept® Wall Mounted
Enclosure model number CSD242420. To assure compliance, the equipment must be
installed in this style cabinet, or one with similar or greater RF attenuation characteristics.
The cabinet should be outfitted with continuous copper finger gasketing and copper foil
along all seams and joints.
4. The Service Personnel must be trained to operate the equipment and must be aware of
the potential of electrical hazards of the equipment and of the field I/O signals connected
to the equipment.
5. Hazardous voltage warning labels must be applied to the enclosure doors adjacent to the
locking mechanisms to warn the Service Personnel that hazardous voltages are
contained within the enclosure, if modules carrying 120 V and above are used.
6. Hazardous voltage warning labels also must be applied to the termination modules
(which carry 120 V and above), adjacent to the external connectors, to warn the Service
Personnel that hazardous voltages are present at the module's terminal blocks.
7. To assure compliance with the EMC requirements, the equipment must have all
communications, power, and field signal cabling exiting the enclosure enclosed in metal
conduits or shielded wireways. These conduits must provide EMI/RFI shielding and must
be terminated at the enclosure shell. There must be no uncovered openings in the
cabinet. Connections between the cabinet and conduit must be made with conduit
connectors making good (low impedance) electrical contact to the enclosure. Input
mains power to the enclosure and mains power fed to switching digital output I/O cards
and modules must be filtered by AC mains filters with attenuation characteristics of
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Corcom VR series filters or with similar filters with equal or greater attenuation
characteristics.
8. DC input mains power to the enclosure and mains power must be filtered by a DC mains
filters with attenuation characteristics of Corcom 6EH1 series filters or with similar filters
with equal or greater attenuation characteristics.
9. Insulation strip length of 0.26 inches (6.5 mm) is required on all field wirings to the I/O
card termination modules.
10. The disposal of any electronic products must be in accordance with local regulations (e.g.
Directive 2002/96/EC of the European Parliament and of the Council on waste electrical
and electronic equipment). Some RTP Corporation products contain materials that may
be detrimental to the environment. These materials may include, but are not limited to
lead (in solder) and lithium (in batteries).
11. Prior to storage or shipping, the equipment must be packaged in accordance with the
following guidelines:
● Inventory all items and inspect all components for damage.
● Verify that all fasteners are properly tightened and that the chassis I/O module
retaining bar is properly installed.
● Wrap the chassis assembly in plastic bubble wrap.
● Select a suitable shipping box that provides at least 1½ inches of space between the
equipment and all sides of the box. This space shall be tightly packed with packing
peanuts or bubble wrap to protect the equipment during storage or shipping.
● Close and secure the box with suitable packing tape.
● Do not stack boxes more than three high. Store the boxes in a protected, dry
environment. Do not expose the boxes to rain or environmental conditions beyond
the ranges specified for the equipment in this document.
14
Environmental Conditions
The modules are rated for the following environmental conditions:
Specification Type Recommended Range Test Specification
IEC 60068-2-30, Db
Operating Temperature -20 ºC to 60 ºC
RTP Type Testing
Operating Temperature Change 10 ºC/minute IEC 60068-2-14 Test Nb
Operating Humidity 10% to 95% non-condensing IEC 60068-2-30, Db
IEC 60068-2-1 Tests Ab, Ad
Storage Temperature -40 ºC to 85 ºC IEC 60068-2-2 Tests Bb, Bd
RTP Type Testing
Storage Temperature Change 10 ºC/minute IEC 60068-2-14 Test Na
Storage Humidity 0% to 100% condensing IEC 60068-2-30, Db
Vibration 9 Hz to 150 Hz at 1 g IEC 60068-2-6, Fc
Mechanical Shock 15 g for 11 milliseconds IEC 60068-2-27, Ea
Electrostatic Discharge Immunity ±6 kV contact IEC 61000-4-2
80 MHz to 1 GHz at 20 V/m
1 GHz to 2.1 GHz at 10 V/m
Radiated E-Field Immunity IEC 61000-4-3
2.1 GHz to 2.5 GHz at 5 V/m
2.5 GHz to 2.7 GHz at 1 V/m
Ethernet Line Burst Immunity ±2 kV IEC 61000-4-4
Ethernet Line Surge Immunity ±2 kV IEC 61000-4-5
Ethernet Line Conducted RF
150 kHz to 80 MHz at 10 V IEC 61000-4-6
Immunity
Pulsed Magnetic Field 300 A/m IEC 61000-4-9
Modules can be ordered with optional HumiSeal© conformal coating. In this case, the modules
can be installed in G3 harsh environmental conditions as defined in standard ISA–S71.04–1985.
This equipment has been tested and found to comply with the limits for a Class A digital device,
pursuant to Part 15 of FCC Rules. These limits are designed to provide reasonable protection
against harmful interference when the equipment is operated in a commercial environment. This
equipment generates, uses, and can radiate radio frequency energy and, if not installed and used
in accordance with the instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is likely to cause interference
in which case the user will be required to correct the interference at his own expense.
This Class A digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la Classe A est conforme à la norme NMB-003 du Canada.
15
Referenced Companies
Corcom Inc.; Libertyville, Illinois, USA; 708-680-7400
Hoffman; Anoka, Minnesota, USA; 763-422-2178
Definitions
OPERATOR is any personnel other than SERVICE PERSONNEL. Requirements
assume that the OPERATOR is oblivious to electrical hazards, but does not act
intentionally in creating a hazard.
SERVICE PERSONNEL are assumed reasonably careful in dealing with obvious
hazards.
CE Conformité Européenne
EMC Electro-Magnetic Compatibility
EMI Electro-Magnetic Interference
EC European Community
EN European Norm
ESD Electro-Static Discharge
EU European Union
IEC International Electrotechnical Commission
ITS-90 International Temperature Scale of 1990
MPU Main Processing Unit
PLD Programmable Logic Device
RF Radio Frequency
RFI Radio Frequency Interference
RTD Resistance Temperature Detector
SOE Sequence of Events
16
