The plugin Alarm-History displays a list of recorded events. Recording occurs when the input RECORD on the Function Block ALARM is set to TRUE.
The permission for each alarm can be set via the element under Visualization Symbol.
To trace the history of events, the license License Advanced Alarm Management must be activated on the server. Logging of events also takes place without a license, provided this has been activated in the Function Block ALARM.
The time period for maximum retention can be set in the context menu under Project Settings
Retention Policies. An alarm is removed after it has ended and the last event is longer than the set time ago.