A read-only connection. Assign a tag or an expression to this connection. At run time, when the tag or expression value is- non-zero, the Alarm list shows alarms that are no longer active and have not yet been acknowledged.
If you assign an expression to this connection , the application calculates the value of the expression and uses the result to determine whether to show inactive unacknowledged alarms.
When this connection is assigned, it overrides the DisplayInactiveUnackedAlarms property.