Rockwell Automation Publication 1756-PM014N-EN-P - March 2022 31
Chapter 3
I/O Fault Codes
This chapter explains I/O fault codes and how to work with them in the Logix
Designer application.
The indication of I/O faults displays in various ways depending on the
controller.
• The I/O indicator of the controller (shown in examples below) flashes
green or red.
• The controller status display indicates I/O fault messages.
Indications of I/O faults