Rockwell Automation 1756-RIO ControlLogix Remote I/O Communication Interface Module User Manual - Manual (Page 164)

164 Publication 1756-UM534B-EN-P - November 2010
Appendix D Troubleshooting Display and Status Indicators
OK Status Indicator – Module Health
The Debug Log
The firmware on the 1756-RIO module maintains a log of informational and
diagnostic messages that can be useful in determining the cause of
configuration and network problems.
To view the log, select Monitor>Debug Log, in the scanner or adapter
configuration program within the configuration tool.
Fatal Errors
Fatal errors occur when the firmware on the module encounters an
unexpected condition. The module stops running, turns all three status
indicators red, and displays the fatal error number on the 4-character display.
The module also records its state at the time the fatal error occurred in a log.
To clear the fatal error and capture the fatal error log, follow these steps.
1. Cycle power on the module. The 4-character display should show
“FaltalErrorCaputure required.”
2. From the Tools menu, choose 1756-RIO Fatal Error Capture in the
scanner or adapter configuration program.
3. Store the fatal error log to a file.
This also clears the fatal error on the module.
Contact Technical Support and provide them with the fatal error log file to
help diagnose the cause of the problem.
Indicator Status Description
OK Green Indicates that module has passed all power-up diagnostics
and is functioning normally.
Red Indicates that module startup diagnostics failed, or a major
module fault such as watchdog time-out, or jabber inhibit
occurred.
IMPORTANT
If all three status indicators are solid red and the 4-character
display shows M#xx, (where xx is the error number), a fatal
error has occurred. See
Fatal Errors . Make a note of the error
code numbers to give Tech Support, if you must call for help.