Alarm Statuses
Each alarm is made up of three different status types: current, latched, and acknowledgment. Each of these alarm statuses is available at any given time.
Current: This is the status of the alarm state that the alarm as it currently stands.
Latched: This is the worst alarm state that the alarm has been through since the latch was last reset. The client latch is only in version 2.60 (version 2.61. and later for both client and server latches)
Acknowledgment: This alarm status indicates alarms that require immediate attention when displaying yellow or red. When an operator has acknowledged the alarm, the status becomes green.
NOTE: For virtual alarms, the Latched and Acknowledgement statuses are the result of the combination of the statuses for the latched sub alarms and acknowledgements, respectively. This has the side effect that for AND/pessimistic virtual alarms, resetting the latch on a virtual alarm will not necessarily make the status of the latched virtual alarm equal to its current status. Also, acknowledging or resetting the latch on a virtual alarm will recursively affect its subalarms. |