Associated with: Any item for which an alarm can be raised
This status attribute displays the summary state of an item’s current alarms and indicates whether alarms can be raised for that item.
With many types of database item, a single alarm is used to raise awareness of any abnormal condition that ClearSCADA has detected on that item. The severity of the alarm is typically specified on the <Item Type> tab of the item’s configuration Form.
With points, in addition to a severity for any non-state-related alarms, separate alarms and severities can be associated with individual point states or limits. These are typically specified on the <Point Type> tab of each point’s configuration Form. With output points, a further severity can be specified for any control-related alarms (typically specified on the Control tab).
The Alarm State attribute summarizes the status of an item’s alarms, indicating if any alarms currently exist.
If the attribute indicates an alarm state, ascertain further information about the actual alarm(s) by looking at the item’s other status attributes, or by using the Display Alarms pick action to display the item’s Alarms List.
Possible states:
- Normal—No alarms currently exist for this item. Any cleared alarms have been acknowledged. Alarms can be raised for this item should an alarm situation occur.
- Disabled—Alarms are presently disabled (hidden) for this item. The name of the user that was logged onto the node from which the alarms were disabled is displayed. If alarms are disabled for a user-defined period of time, the date and time at which the alarms cease to be disabled is also listed. For more information, see Disable Alarms.
- Acknowledged Uncleared—The alarm associated with this item has been acknowledged, but the condition that triggered the alarm still exists.
- Unacknowledged Cleared—The condition that triggered an alarm on this item no longer exists. The message associated with the cleared alarm has yet to be acknowledged.
- Unacknowledged Uncleared—An alarm exists for this item. The associated alarm message has not yet been acknowledged.
For further information on working with alarms, see Alarms.
(Do not confuse the Alarm State status attribute with the State Alarm attribute.)