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  • 1756-IRT8I
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Manufactured by Allen-Bradley/Rockwell Automation, the 1756-IRT8I is a high-resolution analog I/O module. Specifically, it is an 8-point isolated combined temperature and millivolts-sensing input module. The 1756-IRT8I module is a member of the ControlLogix system, and it requires a 36-pin RTB, or a detachable terminal block housing. This can be either the 1756-TBS6H or the 1756-TBCH. The Allen-Bradley 1756-IRT8I has 8 isolated channels for use in any combination of RTD or Thermocouple modes. The Allen-Bradley 1756-IRT8I ControlLogix RTD Thermocouple Input Module is equipped with 2 CJC sensors for thermocouple use, but they can be ordered separately. The accuracy of local CJC sensor is +/- 0.3 degrees Celsius, and this is the same as remote CJC sensor accuracy. The 1756-IRT8I module’s channel sampling rate is determined only by the RPI value since the 1756-IRT8I does not offer RTS parameter. Similarly, channels configured for the thermocouple inputs does lead resistance self-calibration if the module power is cycled.

Some of the properties of the 1756-IRT8I module are the notch filter, multiple module input ranges, digital filter, rate alarm, under-range/over-range detection, 10-ohm copper offset, process alarms, sensor offset, sensor types, wire off detection, synchronized sampling, temperature units, thermocouple wire length compensation, and the cold junction compensation. The 1756-IRT8I ControlLogix RTD Thermocouple Input Module features improved analog I/O modules, three 8-channel isolated designs as well as 12 and 16-channel non-isolated designs all with the enhanced functionality of the analog I/O. This module provides faster performance, is more accurate, and presents better resolution and cost savings than other analog I/O modules because there is less space needed in its chassis for extra modules and power supplies.

Other Automation ControlLogix

SKU 2171136  UPC 0799705807235

RTD / Ohms / Thermocouple / mV Input Module, 8 Individually Configurable Isolated Points (36 Pin)

Troubleshooting and Product Information for 1756-IRT8I

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ControlLogix 1756-IRT8I
Weight: 2 Lbs
Dimensions: 6"x6"x3"In
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Weight: 2 Lbs
Dimensions: 6"x6"x3"In
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1756-IRT8I , CIM1756-IRT8I

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    These “New Surplus” units are a great cost saving alternative. This product is sealed in the original manufacturer’s packaging with all sub-assemblies and documentation. May indicate older date code. Comes with a PDF Supply 3-year warranty.

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    Reconditioned products from PDF Supply are a cost-effective alternative to new and obsoleted PLC products. Every part is reconditioned down to the circuit board level and updated to the latest revision. All parts are thoroughly inspected and hand-cleaned before being functionally tested in a fully configured system.

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    A verified substitute new product is a "drop in" replacement designed with identical specifications as the OEM product. It will meet all electrical and dimensional charactertics at a substanstially reduced price.

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