11.2
I/O Module Common Diagnostic Alarms
The following alarms are common, but not all of these alarms are applicable for every I/O module.
0
Description
Diagnostic Alarm Reset
Possible Cause
N/A
Solution
N/A
2
Description
Flash memory CRC failure
Possible Cause
During commissioning or maintenance:
•
A firmware programming error occurred. The I/O pack or module did not go online with the controller.
During normal operation:
•
The hardware failed.
Solution
During commissioning or maintenance:
•
Rebuild the system, then download the application and the configuration to the I/O pack or module.
During normal operation:
•
Replace the I/O pack or module.
3
Description
CRC failure override is active
Possible Cause
During commissioning or maintenance:
•
A firmware programming error occurred. The I/O pack or module did not go online with the controller.
During normal operation:
•
The hardware failed.
Solution
During commissioning or maintenance:
•
Rebuild the system, then download the application and the configuration to the I/O pack or module.
During normal operation:
•
Replace the I/O pack or module.
Common I/O Module Functionality
GEH-6855_Vol_II System Guide 443
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