I/O Fault Codes

The controller indicates I/O faults on the status display in one of these formats:

The first part of the format is used to indicate the location of the module with a fault. How the location is indicated depends on your I/O configuration and the properties of the module that are specified in the

Studio 5000 Logix Designer®

application.

The latter part of the format, #XXXX message, can be used to diagnose the type of I/O fault and potential corrective actions.

This topic links to Logix 5000 Controller and I/O Fault Codes and Syslog Messages, 1756-RD001; the file automatically downloads when you click the link.

For suggested recovery methods for major faults, see the Logix 5000 Major, Minor, and I/O Fault Codes Programming Manual, publication 1756-PM014.