Suppression of alarms

A common alarm system problem is that one fault give raise to a cascade of alarms, that makes
is impossible for the operator to find the root cause. This can be avoided by suppression
of alarms that are not relevant in a specific situation.

Suppression is made with the function object SuppressSup. A supervision object is stated in
the object, and when the input is high, the alarm from the supervision object is blocked.
The input can for example be connected to the Active output of a DSup object as in the
example below.

Fig Alarm suppression