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 active but 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 active unacknowledged alarms.
When this connection is assigned, it overrides the DisplayActiveUnackedAlarms property.