​.ROCStatus dotfield

Indicates when a rate-of-change alarm becomes active for the specified tag or alarm group. The default value is 0. When a rate-of-change alarm condition exists for the specified tag, it is set to a value of 1. The value remains 1 until the rate-of-change alarm condition no longer exists.

This dotfield is often used in conjunction with the .Alarm and .Ack dotfields to determine the specific alarm state of a tag.

Category

Alarms

Usage

TagName.ROCStatus

Parameter

TagName

Any integer, real, or indirect analog tag.

Data Type

Discrete (read-only)

Valid Values

0 or 1

Example

The following IF-THEN statement runs when the .ROCStatus (rate-of-change alarm) for the MyTag tag is equal to 1.

IF (MyTag.ROCStatus == 1) THEN

OperatorMessage="MyTag has gone into a Rate-Of-Change alarm";

ENDIF;

See Also

.ROCPct, .ROCSet