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IO974: Thermocouple Simulation I/O Module

IO974: Accurate low-voltage source module capable of simulating up to 32 thermocouples and which provides three different output voltage ranges covering most thermocouple types. Simulink driver blocks are included.

This module series offers 8, 16, 24 and 32 accurate low-voltage source channels, covers the requirements of most thermocouple types and is ideal for thermocouple simulation. Each channel consists of a two-wire low-voltage output capable of providing three different output ranges to best fit your application: ±20 mV, ±50 mV, and ±100 mV. The IO974 series is ideal for sensor simulation and ECU testing and can be directly connected to the thermocouple measurement system.

Key features

  • 8, 16, 24 or 32 low-voltage source channels
  • ±20 mV (0.7 uV resolution), ±50 mV (1.7 uV resolution) ±100 mV (3.3 uV resolution) output voltage range
  • Two-wire output for each channel (Vout – Vcold)
  • Independent Vcold connections
  • Remote reference sense for accurate low-level voltages and no ground-loop effects

The IO974 I/O module comes in a PXI/CompactPCI form factor and is connected to a Speedgoat real-time target machine via an expansion enclosure featuring 1 to18.

The following variants are available:

I/O module Channels Output voltage range
IO974-MV/TC-8 8 +/-20 mV, +/-50 mV, +/-100mV (software selectable per channel)
IO974-MV/TC-16 16 +/-20 mV, +/-50 mV, +/-100mV (software selectable in groups of 2)
IO974-MV/TC-24 24 +/-20 mV, +/-50 mV, +/-100mV (software selectable in groups of 3)
IO974-MV/TC-32 32 +/-20 mV, +/-50 mV, +/-100mV (software selectable in groups of 4)
 
Physical  
Form factor PXI/Compact PCI
Power requirements

3.3 V : 0.25 A

5 V: 0.1 A

12 V : 0.2 A

-12 V: 0.2 A

PCI Bus 33 MHz, 32-bit
Connector(s) 78-pin male D-type
Thermocouple  
Number of channels 8, 16, 24 or 32
Output voltage range

+/-20 mV

+/-50 mV

+/-100mV

For the 32-channel version: software selectable in group of 4
For the 24-channel version: software selectable in group of 3
For the 16-channel version: software selectable in group of 2
For the 8-channel version: software selectable for each channel

Resolution

0.7 uV nominal (+/-20 mV range)

1.7 uV nominal (+/-50 mV range)

3.3 uV nominal (+/-100 mV range)

Accuracy*

0.1% ± 5 uV (+/-20 mV range)

0.1% ± 10 uV (+/-50 mV range)

0.1% ± 15 uV (+/-100 mV range)

*Valid at ±10 °C from calibration temperature (factory calibrated at 21°C)

Common mode output Up to 1 V common mode peak output voltage
Output resistance 50 Ω nominal
Output connections Two-wire output for each channel (Vo to Vcold)
Environmental  
Operating temperature 0 °C to 55 °C
Relative humidity Up to 90%, non-condensing
I/O Access  
Front 8, 16, 24 or 32 thermocouple channels

Installation

The IO974 I/O module comes in a PXI/CompactPCI form factor and is connected to a Speedgoat Performance real-time target machine via an expansion enclosure featuring 1 to 18 slots.
Item ID Product Name Components
2A974 IO974-MV/TC-8
  • 1 x IO974, 8 channels
  • 1 x round D-Sub 78-way to P50E80 cable, 1.82m (6ft) long
  • 1 x 80-way spring-loaded terminal board with DIN-rail mount
  • Driver block library for Simulink Real-Time™
  • Installation into real-time target machine
2B974 IO974-MV/TC-16
  • 1 x IO974, 16 channels
  • 1 x round D-Sub 78-way to P50E80 cable, 1.82m (6ft) long
  • 1 x 80-way spring-loaded terminal board with DIN-rail mount
  • Driver block library for Simulink Real-Time™
  • Installation into real-time target machine
2C974 IO974-MV/TC-24
  • 1 x IO974, 24 channels
  • 1 x round D-Sub 78-way to P50E80 cable, 1.82m (6ft) long
  • 1 x 80-way spring-loaded terminal board with DIN-rail mount
  • Driver block library for Simulink Real-Time™
  • Installation into real-time target machine
2D974 IO974-MV/TC-32
  • 1 x IO974, 32 channels
  • 1 x round D-Sub 78-way to P50E80 cable, 1.82m (6ft) long
  • 1 x 80-way spring-loaded terminal board with DIN-rail mount
  • Driver block library for Simulink Real-Time™
  • Installation into real-time target machine

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:

  • 6 = Performance real-time target machine

Pricing information
We do not 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 contact us to discuss your specific needs. We can then quickly provide you with a tailored quotation including technical and pricing information.

 

Included in delivery

  • I/O module installed into real-time target machine
  • Simulink driver blocks
  • Test models
  • Comprehensive documentation

Supported target machines

Resources