LF: Acknowledge Alarms / Acknowledge & Clear Alarms

Use this Ladder element to acknowledge or acknowledge and clear alarms, whether for a single alarm, a group of alarms, or all alarms in the system, with optional status feedback to indicate operation progress and success.

 

Parameter Name

Purpose

A

Acknowledge Type

Click to select the required type:

0=ACK a Single Alarm

1=ACK an Entire Group

2=ACK All Alarms

3=ACK & Clear a Single Alarm

4=ACK & Clear an Entire Group

5=ACK & Clear All Alarms

B

ID of Alarm

Use a constant or tag value to select the ID of the alarm or alarm groups.

Note that the alarm ID may be from 1-1024, alarm groups are 0-31

C

Status (optional)

-1=Alarm ID does not exist (tag B)

0=Success

1=CPU in Progress

2=Panel in Progress