RTP 3110 User manual

Technical Manual
3110 & 3120
8-Channel
100Ω RTD Input Cards

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© 2002 - 2019 RTP Corporation
Specifications, information and graphics are subject to change without notice. Contact
RTP’s corporate office for specifics regarding any changes.
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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
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RTP Corporation
2832 Center Port Circle
Pompano Beach, FL 33064
Phone: [phone]
Internet: http://www.rtpcorp.com
Last Updated: 05/17/19

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TABLE OF CONTENTS
INTRODUCTION........................................................................................4
SPECIFICATIONS.....................................................................................5
FAILURE RATES IN ACCORDANCE TO IEC 61508 ...............................7
CABLING....................................................................................................8
3-Wire RTD Selection...............................................................................8
4-Wire RTD Selection.............................................................................10
REDUNDANT I/O CARDS PLACEMENT................................................14
3000 Series System with I/O Cards..............................................................14
3100 Series System with I/O Cards..............................................................14
SOFTWARE CONFIGURATION .............................................................14
PLD Upgrade...............................................................................................14
NetArrays Configuration...............................................................................17
Redundant Card ID................................................................................18
Type.......................................................................................................18
Float Cal High Input ...............................................................................18
Float Cal Low Input................................................................................18
Float Board Temp ..................................................................................18
Integer Card Revision.............................................................................18
Integer Cal Date.....................................................................................19
Integer Cal Serial Number......................................................................19
Integer Error Detection...........................................................................19
Integer Channel Error Status..................................................................20
Channel .................................................................................................21
I/O Tag...................................................................................................21
Filter.......................................................................................................21
Threshold...............................................................................................21
Comment...............................................................................................21
COMPLIANCE WITH CE MARK .............................................................22
ENVIRONMENTAL CONDITIONS ..........................................................24
REFERENCED COMPANIES..................................................................25
DEFINITIONS...........................................................................................25

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Introduction
The 3110 and 3120 8-Channel RTD cards can measure temperatures with either eight 3-wire
connected resistance temperature detectors or four 4-wire connected resistance temperature
detectors (RTD). The analog input card provides isolation between the channels and the RTP
system. The RTDs share a common power supply for the precision excitation current sources.
Analog to digital conversion is performed by a 16-bit switched capacitor successive
approximation A/D converter. A precision voltage source provides self-test function for the card’s
amplifiers and A/D converter and can be used to verify accuracy in user application logic. 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.

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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.
The 8-Channel RTD card provides a DC-to-DC converter that supplies power to the eight
excitation-current sources. Dual and triple redundant configurations can be implemented by
adding one or two additional cards and cable sets. Up to three Analog Input cards may be
connected to the RTDs in parallel using the same 3099/34-000 Termination Module. The
3099/31-100 Single Termination Module can be used when redundancy is not required.
Each of the channels contain configuration jumper blocks (JP200 through JP203) for selecting
either a 3-Wire RTD connection or a 4-Wire RTD connection. Up to eight 3-Wire RTD’s or four 4-
Wire RTD’s can be connected.
For long term accuracy, the calibration channels should be monitored to the desired accuracy
tolerance.
The 3110 cards scans at 1000 samples per second with a -3dB @ 2KHz double pole filter. The
3120 card scans at 43 samples per second with a -6dB @ 9 Hz 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) or 4 (4-wire configuration)
Isolation: 500 V Channel to RTP BUS
Type of protection: Digital isolators (magnetic)
Input Signal Range: 0 to 160 mV
RTD Type and Range: 100 Platinum
–200 °C to +850 °C
18.52 to 390.48 
RTD Linearization: Internal (ITS-90: Alpha = 0.00385) or user supplied
RTD Excitation Current:
3-Wire Two 400 A ± 1½% current sources connected to Sense+
and Sense –
4-Wire One 400 A ± 1½% current source on an Excitation Source
Maximum permanent allowed
Voltage (no damage): 6 Volts
Reading under overload condition: Reported in error status word.
Common Points between Channels: All channels common to excitation return
Normal Mode Rejection: 3110: 0 dB at 60 Hz
3120: -39 dB at 60 Hz
Type of Input: Single Ended
Conversion method: Successive approximation
Guard Band: 160mV to 161.618mV

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Sample Repetition Rate: 3110: 1 millisecond (1000 scans per second)
3120: 23 milliseconds (43 scans per second)
Sample Duration & Settling Time: 3110: 17.7 microseconds
3120: 1.3 milliseconds
Input Filter characterization:
3110
Order: First Order
Transition: -3 dB at 2 kHz
3120
Order: Second Order
Transition: -6 dB at 9 Hz
Multiplexer Type: Solid state multiplexer
Full Scale Value: 160 mV
Analog input error:
Maximum error at 25 °C: ±0.085% of Full Scale Value (±136 µV)
Temperature Coefficient: ±0.0068% of Full Scale Value/ ºC (±10.9 µV/ ºC)
Maximum error (0 to 55 °C): ±0.289 % of Full Scale Value (±462 µV)
Non-Linearity: ±0.025% of Full Scale Value
Repeatability: ±0.085% of Full Scale Value at fixed temperature
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: 16 Bits
Value of LSB: 0.0133 , 5.3205 µV
Input Source Impedance: Maximum 1 kincluding cables to meet specifications
Power Requirements: +5 VDC @ 300 mA
+24 VDC @ 250 mA
Termination Module Connectors: 37 pin D-Sub connector for use with the 3058/00 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
Termination Module: All Termination Modules are 4.38 inches (11.1 centimeters)
in height and have 3.75 inches (9.5 centimeters) of depth.
The width for each termination module and the compatible
field wiring size is tabulated as following:

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Model #
Description
Width
(")
Width
(cm)
Minimum
AWG
Maximum
AWG
3099/31-100
Single Termination Module - 8 channel
voltage input
2.27
5.8
30
12
3099/34-000
Triple RTD Termination Module
4.37
11.1
26
16
Module dimension values are ± 0.05 inches or ± 0.127 centimeters!
Effect of Incorrect Field Wiring: Incorrect temperature readings.
Failure Rates in Accordance to IEC 61508
The 3110 and 3120 RTD input cards 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.

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Cabling
Adhere to the specified insulation strip length of 0.26 inches (6.5 mm) when you connect field
wiring to the terminal modules; excessive insulation strip lengths causes an electrical hazard. Do
not exceed the specified torque when you secure the wires into the terminal module; maximum
torque is 2.2 inch-pounds (0.25 N-m).
Standard length for 3058/00 and 3058/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. It must be also disabled (offline), if making online
changes and removing it from a redundant configuration. 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.
3-Wire RTD Selection
Jumpers JP200 through JP203 on the card select the RTD wiring type for channels 0 through 7,
respectively. Position these jumper plugs on the card as following:

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Figure 1: Field connections on the 3099/31-100 or 3099/34-000 Termination
Modules shown with 3-Wire RTD example.
Pin
Signal
1 Top
Channel 0 Sense+
1 Middle
Channel 0 Sense-
1 Bottom
Channel 0 Excitation Return
2 Top
Channel 1 Sense+
2 Middle
Channel 1 Sense-
2 Bottom
Channel 1 Excitation Return
3 Top
Channel 2 Sense+
3 Middle
Channel 2 Sense-
3 Bottom
Channel 2 Excitation Return
4 Top
Channel 3 Sense+
4 Middle
Channel 3 Sense-
4 Bottom
Channel 3 Excitation Return
5 Top
Channel 4 Sense+
5 Middle
Channel 4 Sense-
5 Bottom
Channel 4 Excitation Return
6 Top
Channel 5 Sense+
6 Middle
Channel 5 Sense-
6 Bottom
Channel 5 Excitation Return
7 Top
Channel 6 Sense+
7 Middle
Channel 6 Sense-
7 Bottom
Channel 6 Excitation Return
8 Top
Channel 7 Sense+
8 Middle
Channel 7 Sense-
8 Bottom
Channel 7 Excitation Return
9 Top
No Connection
9 Middle
No Connection
9 Bottom
No Connection
400 A
400 A
800 A
R
T
D

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4-Wire RTD Selection
Jumpers JP200 through JP203 on the card select the RTD wiring type for channels 0 through 7,
respectively. The odd numbered channels are not used, therefore only up to four 4-Wire RTD’s
can be configured (Channels 0, 2, 4 and 6). Position these jumper plugs on the card as following:
Figure 2: Field connections on the 3099/31-100 or 3099/34-000 Termination Modules shown
with 4-Wire RTD example.
Pin
Signal
1 Top
Channel 0 Sense+
1 Middle
Channel 0 Sense-
1 Bottom
Channel 0 Excitation Return
2 Top
Channel 0 Excitation Source
2 Middle
No Connection
2 Bottom
No Connection
3 Top
Channel 2 Sense+
3 Middle
Channel 2 Sense-
3 Bottom
Channel 2 Excitation Return
4 Top
Channel 2 Excitation Source
4 Middle
No Connection
4 Bottom
No Connection
5 Top
Channel 4 Sense+
5 Middle
Channel 4 Sense-
5 Bottom
Channel 4 Excitation Return
6 Top
Channel 4 Excitation Source
6 Middle
No Connection
6 Bottom
No Connection
7 Top
Channel 6 Sense+
7 Middle
Channel 6 Sense-
7 Bottom
Channel 6 Excitation Return
8 Top
Channel 6 Excitation Source
8 Middle
No Connection
8 Bottom
No Connection
9 Top
No Connection
9 Middle
No Connection
9 Bottom
No Connection
R
T
D
400 A
Load