Alarm state

Alarms may be in an alarm state or acknowledged. They may be open or cleared.

Each alarm is a single record in the system database that changes among one of four states.

• Alarm condition exists: the alarm state

  When an event triggers an alarm, it remains in effect until it is acknowledged.

• Alarm acknowledged: the acknowledged state

  The alarm has been acknowledged by the recipient. Acknowledged alarms may be normal alarms.

• Alarm status is normal: the normal state

  Alarm is a normal alarm that has been acknowledged: acknowledged normal alarm

• Alarm status is force clear: the force clear state

  Alarm is cleared from the alarm console. The alarm state must be normal and acknowledged.

In addition to these states, an alarm may be open or cleared (closed). An alarm is considered open when it is not:

• acknowledged and normal

• acknowledged and an alert

Open alarms display in the alarm console. Cleared alarms do not display in the alarm console. The table shows the conditions that result in an alarm being open or cleared.

Alarm state	Acknowledge State	Open or cleared
Offnormal or Fault	Unacknowledged	Open
Offnormal or Fault	Acknowledged	Open
Normal	Unacknowledged	Open
Normal	Acknowledged	Cleared