Set the alarm state for individual alarms

You can set individual alarms within an object for each type of alarm. For example, you can set alarms for each of the limits of a level alarm.

The following figure shows an object’s individual alarms for the HiHi and Hi alarm limits.

The calculated AlarmMode attribute value of an individual alarm uses the same inputs as an object alarm. The parent AlarmMode attribute is from the object itself. As with object alarms, the individual alarm mode is set to the most restrictive input state. For example, if the object’s AlarmMode state is disabled and the individual alarm’s AlarmInhibit is FALSE, the individual alarm is disabled.

Each individual alarm is autonomous from other individual alarms in an object. The AlarmMode of an individual alarm is not propagated to other alarms. Unlike inhibit for the entire object, inhibit of an individual alarm does not affect the alarms of any contained objects. You can selectively enable, silence, or disable an individual alarm and not set other alarms to the same value within the object hierarchy.