Rockwell Automation 1785-CHBM ControlNet PLC-5 Hot Backup System User Manual - Manual (Page 70)

Publication 1785-UM024B-EN-P - January 2003
5-6 Monitoring and Troubleshooting Your ControlNet PLC-5 Hot Backup System
Troubleshooting
Qualification Major Faults When a qualification major fault occurs (S:12 = 234), the ControlNet
Backup Configuration and Status file contains a diagnostic word
(word 46) that indicates the reason why the qualification major fault
occurred. The following table lists the various qualification major fault
reason codes and the suggested corrective action.
If you see reason
code: Which indicates this condition: Take this corrective action:
0 Qualification successfully completed No action required
1 Failed Qualification Equivalence check - Ladder
programs different Disable ladder program equivalence check, if desired.
Make ladder programs identical in each processor.
2 Failed Qualification Equivalence check - Data Table
Structures different Disable data table structure equivalence check, if desired.
Make data table structures identical in each processor.
3 Failed Qualification Equivalence check - Redundant
connections in I/O Map Tables different Disable Redundant Connections in I/O Map Table
equivalence check, if desired.
Make redundant connections identical in each processor.
4 Failed Qualification Equivalence check - ControlNet
Hot Backup file connection parameters different Disable ControlNet Hot Backup file connection parameters
equivalence check, if desired.
Make ControlNet Hot Backup file connection parameters
identical in each processor.
5 Failed Qualification Equivalence check - Force Tables
different Disable Force Tables equivalence check, if desired.
Make Force Tables identical in each processor.
6 Failed Qualification Equivalence check - Configuration
parameters in processor status file different Disable processor status file equivalence check, if desired
Make processor status file configuration parameters
identical in each processor
8 Processor major faulted during qualification Fix the reason for the major fault. Refer to S:12 for major
fault codes
9 Keyswitch changed to Program during qualification No action required
10 Files being created or deleted during qualification Refrain from editing the data table file or program files
during qualification.
11 Upload or Download in progress during qualification Refrain from uploading or downloading to the processor
during qualification.
12 ControlNet channel reconfiguration in progress during
qualification Refrain from performing a ControlNet channel
reconfiguration during qualification.
13 The processor changed from the No Control backup
state to the Invalid backup state during qualification Refrain from modifying the ControlNet backup
configuration parameters during qualification.
14 The partner processor was in the Primary backup
state when qualification started. The partner
processor changed out of the Primary backup state
during qualification. Clear the fault and go back into Run mode.
15 The partner’s ControlNet Hot Backup configuration
parameters are invalid Refrain from changing the partner processor’s ControlNet
Hot Backup configuration parameters during qualification.
17 Qualification crossload failed Refer to the Troubleshooting Qualification Crossloads
section in this chapter.
18 Edits in progress during qualification Refrain from editing during qualification.