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16-Channel, Thermocouple & Strain I/O Module

The IO171 I/O module offers versatile support to measure ungrounded thermocouples, resistive sensors such as resistance temperature detectors (RTD) and thermistors, and strain gauges.

There are 16 channels which can be separately configured for any sensor type, and predefined parameter sets are available for the most common sensor types. The IO171 also comes with a dedicated terminal board that allows individual wiring schemes to be implemented for each channel.

The module can perform cold junction compensation, measure cold junction temperatures and is generally ideal for use across a broad range of industries.

Key Features


  • Measure the following thermocouples: B, S, R, T, E, N, J and K
  • Cold junction compensation performed inside a dedicated terminal board
  • Themocouple conversion time of 22 ms

Resistance Temperature Detectors (RTD)

  • Measure the following detectors: NI1000, NI500, NI100, PT1000, PT500 and PT100
  • Measurements are ratiometric and done using an onboard high-precision reference resistor
  • RTD conversion time of 22 ms

Strain Gauges

  • All strain gauge types supported
  • Quarter, half or full bridge circuit configurations may be used. Quarter and half bridges must be completed outside of the I/O module
  • Strain gauge conversion time of 74 ms
Form factor XMC
Power requirements

400 mA typical @ VPWR = +5 V DC
200 mA typical @ VPWR = +12 V DC

2 mA typical @ +3.3 V DC
2 mA typical @ +3.3 Vaux DC

+12V / -12V not used

Electrical interface PCI Express (Base Specification 1.1) up to x4 compliant interface conforming to ANSI/VITA 42.3-2006 (R2014)
Connectors 68-pin MDR connector (3M N10268-52E2PC)
Operating temperature -40 to +85°C
Relative humidity 5 to 95%, non-condensing
Analog Input  
Number of channels 16 individually-configurable, analog thermo-/strain measurement channels
ADC resolution 24-bit
Conversion times

Thermocouples: 22 ms
RTD: 22 ms
Strain gauges: 74 ms

The conversion times above apply to each individual channel

Supported thermocouple types B, S, R, T, E, N, J and K
Supported resistive sensors (RTDs) NI1000, NI500, NI100, PT1000, PT500 and PT100
Supported strain gauges Quarter, half and full bridge
Mean time between failures (MTBF)* 464,000 hours
MTBF (Mean Time Between Failure) - MTBF values shown are based on calculation according to MIL-HDBK-217F and MIL-HDBK-217F Notice 2; Environment: GB 20°C. The MTBF calculation is based on component FIT rates provided by the component suppliers. If FIT rates are not available, MIL-HDBK-217F and MIL-HDBK-217F Notice 2 formulas are used for the FIT rate calculation.
Item ID Product Name Components
20171X* IO171
  • 1x IO171 I/O module
  • 1x 68-pin male SCSI3 to 68-pin male MDR cable, (6 ft/1.82 m)
  • 1x DIN-rail mountable 68-Pin Female SCSI Terminal Board
  • Driver block library for Simulink Real-Time™
  • Comprehensive documentation and Simulink example models
  • Installation into the real-time target machine
350071 TerminalBox-IO171-68pin
  • 1x IO171 Terminal Box with cold junction compensation

Key to X in Item ID
Please replace the X with the code number of the specific target machine into which this I/O module shall be installed:

  • 5 = Mobile real-time target machine
  • 6 = Performance real-time target machine
  • 8 = Baseline real-time target machine

Pricing information
We don't publish pricing information on our website. Upon request by e-mail or phone we can provide a complete price list covering our entire product portfolio in various currencies. We recommend that you get in touch with us to discuss your specific needs. We can then quickly provide you with a tailored quotation including technical and pricing information.


Included in the Delivery

Supported target machines

Supported target machines


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