DF1 Diagnostic Sequence Count
Allen-Bradley · Compact 5000 I/O Serial Module
What does I x .DF1.DiagnosticSequenceCount mean?
This SINT tag for module 'x' increments each time a unique diagnostic condition is detected or transitions from active to inactive on the DF1 channel. It acts as a change counter for diagnostic states, providing a means to track the frequency and occurrence of diagnostic events. The count resets to zero upon product reset or power cycle, and wraps from 255 (-1) to 1, skipping zero.
Common Causes
- Occurrence of a new distinct diagnostic condition on the DF1 channel of module 'x'.
- Resolution of a previously active distinct diagnostic condition on the DF1 channel of module 'x'.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Use this counter in conjunction with `I x .DF1.DiagnosticActive` to identify diagnostic event frequency and when new conditions arise for module 'x'.
- 2
Record the counter value before and after troubleshooting steps to confirm if diagnostic conditions are resolving or recurring for module 'x'.