​.AlarmDev dotfield

Indicates when a deviation alarm becomes active for the specified tag or alarm group. The default value is 0. When a deviation 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 .AlarmDev dotfield is set to 1 if any of the tags within the group are in an active alarm state.

Category

Alarms

Usage

TagName.AlarmDev

Parameter

TagName

Any integer, real, indirect analog tag, or alarm group.

Data Type

Discrete (read-only)

Valid Values

0 or 1

Example

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

IF (Tag1.AlarmDev == 1) THEN

The body of this IF-THEN statement is processed if there are active deviation alarms within the PumpStation alarm group.

IF (PumpStation.AlarmDev == 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, this dotfield remains equal to 1.

See Also

.Ack, .UnAck, .Alarm, .AckDev