What are the Alarm categories?

The following alarm categories are defined, not reflecting priority or criticality of the alarm:

Action alarm:

Alarm feature including blocking facilities intended for automatic safeguarding actions in order to protect equipment, environment or human beings.

Warning alarm:

Alarm without blocking facilities intended for abnormal conditions enabling operator intervention in order to prevent further escalation.

Fault alarm:

Alarm associated to fault or failure in the instrument and/or control device.


Easy and obvious. Thanks