Allen-Bradley 1756-IRT8I Reference Manual

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Migrating 6-channel to 8-channel 1756 Analog Modules

Catalog Numbers 1756-IF6CIS, 1756-IF6I, 1756-IF8I, 1756-IR6I, 1756-IRT8I, 1756-IT6I, 1756-IT6I2, 1756-OF6CI, 1756-OF6VI,

1756-OF8I

Reference Manual

Original Instructions

Table of Contents

Other manuals for Allen-Bradley 1756-IRT8I

User Manual226 pages

Questions and Answers:

K
Kelly LeeAug 6, 2025
What to do if output is ON in code but not on module in Allen-Bradley 1756-IRT8I I/O Systems?
- J
  Jared RobinsonAug 6, 2025
  If the output is ON in your user application code but not ON at the output module, you should: * Verify that at least one of the connections to the output module is active. * Verify that the output is ON in the output module tags. * Confirm whether all of the connections in the chassis are faulted, including the Ethernet modules. If so, troubleshoot the Ethernet communication issue. * Troubleshoot the error code displayed in Module Properties > Connection tab.
L
leslie82Aug 22, 2025
How to fix Allen-Bradley I/O Module Connection Error?
- W
  wilkersonmaryAug 22, 2025
  To fix the I/O Module Connection Error or I/O Module Configuration Error (indicated by a yellow triangle in Logix Designer I/O configuration) in Allen-Bradley I/O Systems, you can: * Verify that both entries in the Logix Designer I/O Configuration have the same RPI. * Verify that both entries in the Logix Designer I/O Configuration have the same configuration. * Toggle the Sync_Module_Config BOOL tag in the IO_Mapping Program MainRoutine Rung 1 to copy the module A configuration to module B. * Try removing the module from the chassis and reinserting it. * If the error persists, delete one of the module entries in the Logix Designer I/O Configuration and add it into your project again.

Allen-Bradley 1756-IRT8I Specifications

General

Manufacturer	Allen-Bradley
Product Type	I/O Module
Series	ControlLogix
Number of Channels	8
Input Type	RTD/Resistance
Resolution (Temperature)	0.1 °C
Backplane Current @ 24VDC	0 mA
Backplane Current Draw @ 24V	0 mA
Shock (Operating)	30 g
Shock (Nonoperating)	50 g
Resolution	16 bit
Backplane Current @ 5VDC	150 mA
Backplane Current Draw @ 5.1V	150 mA
Operating Temperature	0 to 60 °C
Storage Temperature	-40 to 85 °C (-40 to 185 °F)
Relative Humidity	5 to 95% non-condensing
Vibration	5 g
Certifications	CE, cULus

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