The status diagram of system alarms shows all the possible states of Alarm object and changes of them. It is illustrated on the following figure.
Normal | Condition of finishing an alarm is met. If it is not defined then the condition of starting the alarm has disappeared. |
Normal* | Change into the Unacknowledged state occurs if the alarm object is defined as an acknowledgement-required alarm in its configuration. |
Alarm | Condition of starting an alarm is met. |
Block | The alarm is blocked by operator. |
Acknowl. | The alarm is acknowledged by operator. |