​.AlarmDsc dotfield

Indicates whether an alarm condition exists for a specified discrete tag or alarm group. The default value is 0. When a discrete alarm condition exists for the specified tag, it is set to a value of 1. The value remains 1 until the alarm condition no longer exists.

If the specified tag is the name of an alarm group, the .AlarmDsc dotfield is set to 1 if any of the tags within the group are in an active discrete alarm.

Category

Alarms

Usage

TagName.AlarmDsc

Parameter

TagName

Any discrete tag, indirect discrete tag, or alarm group.

Data Type

Discrete (read-only)

Valid Values

0 or 1

Example

The following statement verifies if Tag1 has an active discrete alarm associated with it:

IF (Tag1.AlarmDsc == 1) THEN

MyAlarmMessage="The pumping station currently has an ALARM!";

ENDIF;

This dotfield is not linked to the .Ack or .UnAck dotfields. Therefore, even when an active alarm has been acknowledged, the .AlarmDsc dotfield remains equal to 1.

See Also

.Ack, .UnAck, .Alarm, .AlarmDsc, .AckDsc