Siemens DESIGO PXM20 User Manual page 39

Note Note that it is not possible to acknowledge or reset alarms in the
Symbols in the Alarm & event history
Siemens
Building Technologies
Alarm & event history.
Unlike the Alarm viewer, the Alarm & event history only logs
incoming alarms, but does not update the entries with any changes.
As with Alarm viewer, you can invoke an individual alarm or event
here, and view the details.
Unacknowledged alarm
Normal state, existing alarm unacknowledged
System event
Acknowledged
Reset
PXM20 / PXM20-E operator unit
Alarms
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