Alarm Event Reference

Acknowledge

Recorded when an operator acknowledges an alarm.

Active

The triggering condition for the alarm is valid, and the alarm is not configured as a trip alarm.

Active Ack

An alarm is activated and acknowledged in the same transaction. This event type is included for compatibility with alarm standards, but will not occur within VTScada.

Commission

Recorded when an alarm is created. Also recorded when the tag that has the alarm is re-enabled after having been disabled.

Decommission

The tag containing the alarm was disabled or deleted.

Disable

The disable option was set in the alarm's configuration.

Enable

An alarm that had been disabled was re-enabled.

Event

Used only for VTScada events such as operator control actions.

Modify

A transaction in which the alarm was reconfigured.

Normal

The triggering condition for the alarm is no longer valid (and the alarm is not a trip alarm), but the alarm has not yet been acknowledged.

Normal Ack

An alarm is cleared and acknowledged in the same transaction. This event type is included for compatibility with alarm standards, but will not occur within VTScada.

Notify

A phone call, email or text message was sent by the VTScada Alarm Notification System.

Off Normal

An alarm that is activated without becoming unacknowledged. This event type is included for compatibility with alarm standards, but will not occur within VTScada.

Purge

Orphaned alarm events are purged automatically. These records are not deleted, but are marked as purged and hidden unless you choose to view them using the control in the alarm list toolbar.

Rearm

The alarm was acknowledged, but left in an active state longer than the rearm time. (Automatic rearming is an optional configuration property of alarms.

Recommission

Moving or renaming an alarm tag will always cause a Decommission / Recommission pair as the old name is decommissioned and the alarm is recommissioned under the new name.

Reconcile

(Formerly, "Rename") Housekeeping tasks whenever a rename, move, or recompile of an alarm tag occurs.

Shelve

Recorded when an operator shelves the alarm.

Suppress

Recorded when the configured event for alarm suppression occurs

Trip

The triggering condition has occurred for an alarm configured with the Trip flag.

Unshelve

Recorded when an operator deselects the shelve option for the alarm, or when the preset shelving time expires.

Unsuppress

Recorded when the configured condition for alarm suppression is not longer true.