Rockwell Automation Publication 1756-UM540E-EN-P - December 2017 59
Chapter 4
Temperature-sensing Analog Modules
Common Module Features
The modules have the following features:
Topic Page
Common Module Features 59
1756-IRT8I Diagrams 79
1756-IR12 Diagrams 84
1756-IT16 Diagrams 86
Fault and Status Reporting 88
Module Description
1756-IRT8I The 1756-IRT8I module has eight isolated channels. Each channel supports connection to the
following input types:
• RTD, both 3-wire and 4-wire
• Thermocouple mV devices
The module provides 24-bit data resolution. Additional features are described in this chapter.
1756-IR12 The 1756-IR12 module has 12 non-isolated channels. Each channel supports 3-wire RTD connections.
The module provides 24-bit data resolution. Additional features are described in this chapter.
1756-IT16 The 1756-IT16 module has 16 non-isolated channels. Each channel supports connection to
thermocouple mV devices.
The module provides 24-bit data resolution. Additional features are described in this chapter.
Feature 1756-IRT8I 1756-IR12 1756-IT16
Module Input Ranges X X
Notch Filter X X X
Underrange/Overrange Detection X X X
Digital Filter X X X
Process Alarms X
Rate Alarm X
Sensor Offset X X X
10 Ohm Copper Offset X X
Wire Off Detection X X X
Temperature Units X X X
Sensor Types X X X
1756-IRT8I Thermocouple Wire Length Compensation X
Synchronized Sampling X
Cold Junction Compensation X X
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