​.Ack dotfield

Monitors or controls the alarm acknowledgment status of all types of local alarms.

Category

Alarms

Usage

TagName.Ack=1;

Parameter

TagName

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

Remarks

Set this dotfield to a value of 1 to acknowledge any outstanding alarms associated with a specified tag or alarm group. When the specified tag is an alarm group, all unacknowledged alarms associated with the tags within the specified group are acknowledged. When the specified tag is of any type other than alarm group, only the unacknowledged alarm associated with that tag is acknowledged. Setting the .Ack dotfield to a value other than 1 has no meaning.

Data Type

Discrete (read/write)

Valid Values

1

Example

The following statement acknowledges an alarm associated with the Tag1 tag:

Tag1.Ack=1;

This next example would be used to acknowledge all unacknowledged alarms within the PumpStation alarm group:

PumpStation.Ack=1;

Note: The .ACK dotfield has an inverse dotfield called .UnAck. When an unacknowledged alarm occurs, .UnAck is set to 1. .UnAck can then be used with animation links or in condition scripts to trigger annunciators for any unacknowledged alarms.

See Also

Alarm, UnAck, AckDev, AckROC, AckDSC, AckValue, AlarmAckModel