Fatal errors – Rockwell Automation 1756-RIO ControlLogix Remote I/O Communication Interface Module User Manual User Manual
Page 125
Publication 1756-UM534B-EN-P - November 2010
125
Monitor Remote I/O Chapter 5
3. To clear Block Transfer diagnostics, while in BTMon, from the Actions
menu, choose ClearDiagCounters, or click the ClearDiagCounters
button on the toolbar.
Fatal Errors
Fatal errors occur when the firmware on the module encounters an
unexpected condition. There are three main causes for fatal errors:
• A bug in the 1756-RIO module firmware
• A 1756-RIO module hardware failure
• Certain types of ControlLogix backplane failures
The 1756-RIO module monitors its own operation for invalid conditions. The
module stops scanning, turns all three status indicators red and displays a fatal
error number similar to ‘M#60’ on the 4-character display, and then stores a
fatal error log that indicates the cause of the fatal error.
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