Bridge User Manual

Chapter 5 Alarms and Events

The diagram above uses event-driven programming to wait for an

alarm summary event before updating the Alarm Summary Display.

The Read Alarm Summary VI returns when an alarm event occurs on

any of the tags in the tag constant array. The column headers for the

Alarm Summary Display are initialized when the Read Alarm

Summary VI returns for the first time, and the initialize output is set.

The Alarm Summary Display is updated when the Read Alarm

Summary VI returns with changed? set.

4. Save the VI as

My Alarm Summary.vi

in the

BridgeVIEW\

Activity

directory.

5. Run the VI. Now you can display the alarms on tags that have been

configured for alarms. By default, the Alarm Summary Display shows

alarms as red when they are in an unacknowledged alarm state, yellow

when they are acknowledged and in alarm, and green when they are not

in alarm but unacknowledged.

Note If there are no alarms being displayed, launch the Tag Configuration Editor

(Project»Tag»Configuration) and open

mytanks.scf. Edit it as indicated in

Activity 3-1, save it, and relaunch the Engine.

End of Activity 5-1.