Exception control
The exception control receives alarms from the alarm control, with scores designating the alarm quality.
The exception control module has two functions:
- Alarm adjustment - set the boundaries for state transitions, defining the alarm thresholds
- Test manager - used to fake the
sensor input for fault testing
Input
- Alarm scores used to adjust the alarm thresholds
- Administrators commands about test conditions
Processing
The exception control does:
- Accumulates the alarm scores and
- Calculates statistics about the quality of each alarm type
- Proposes changes in the state boundaries used as alarm thresholds.
Output
The exception control proposes changes to the state boundaries.
Alarm adjustment
- enables the exception designer to evaluate the quality of the alarms and to change the state boundaries to improve them.
Updated on 18 Jun 2017.