National Instruments BridgeVIEW How Do You Display Alarm Summary Information?

Chapter 5 Alarms and Events

BridgeVIEW User Manual 5-2 © National Instruments Corporation

An alarm priority indicates the severity of an alarm. Priorities range from

1 (lowest) to 15 (highest). You can filter the alarms displayed in your HMI

by alarm priority.

An alarm summary is a collection of all the alarms that currently exist in

the system. In addition, if a tag previously in alarm returns to normal but is

unacknowledged, a notification is posted in the alarm summary. You can

report alarms to your HMI by using the Alarm Summary Display, which is

available in the Controls»Alarms and Events palette of the front panel,

and the Read Alarm Summary VI, which is available in the

Functions»Alarms and Events palette from the block diagram.

The alarms displayed in your Alarm Summary Display can be filtered by

group or tag names, priority, and acknowledgment status.

An event history is a collection of all the alarms and events pertaining to tag

values that have occurred in the BridgeVIEW system since the Engine was

started. You can report recent events to your HMI by using the Event

History Display, available in the Alarms and Events palette from the front

panel, and by using the Read Event History VI in the Alarms and Events

palette from the block diagram. The alarms displayed in your Event History

Display also can be filtered by group or tag names, priority, and

acknowledgment status.

How Do You Display Alarm Summary Information?

To read the alarms currently in the BridgeVIEW system, drop an Alarm

Summary Display from the Controls»Alarms and Events palette on your

front panel. You can invoke the HMI G Wizard to create the block diagram

for an alarm summary, or you can build your own diagram. For more

information about the HMI G Wizard, see Chapter 4, Human Machine

Interface.

If you are building your own block diagram, use the Read Alarm Summary

VI in your block diagram. If you want to change the default fields (time,

date, tag name, alarm limit) that are visible in the Alarm Summary Display,

you can use the Alarm Summary Format control from the Controls»

Alarms and Events palette and change the checkbox selections. You also