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5 Operation
5.3.1
Alarm list
The alarm list shows all pending alarms in their order of occurrence. If an alarm is no longer
pending, its entry is automatically removed from the alarm list. The alarm list is rebuilt after pow-
er on.
Each alarm represents an event. For this reason, the time at which an alarm occurs and disap-
pears again is recorded in the event list.
A pending alarm is additionally shown by the red LED in the status bar.
View
Collective alarm
The following collective signals are created and are available in the digital selector:
•
Collective alarm
This signal is active while an alarm is pending (the alarm list is not empty).
•
Collective alarm acknowledged
This signal is activated when an alarm occurs; it remains active until acknowledged even if
the alarm disappears in the meantime.
(1)
Alarm (time and alarm text)
(3)
Update alarm list
(2)
Quit alarm list
(4)
Acknowledge collective alarm
(2)
(1)
(3)
(4)