# Set up connections for an alarm list

Use the Connections tab of the Alarm List Properties dialog box to assign tags or expressions to control an alarm list remotely. Connections will override the settings on the Display tab of the Alarm List Properties dialog box.

## To set up tags and expressions for an alarm list

1. In the Graphics Display editor, double-click the alarm list to open its Properties dialog box.
2. On the Connections tab, assign a tag or expression to the following connections:
   - ActiveAcknowledged
   - ActiveUnacknowledged
   - AlarmIdentifier
   - InactiveAcknowledged
   - InactiveUnacknowledged

     Tip: | If you assign a tag, the application reads the value of the tag at the data source, and assigns this value to the connection. If you assign an expression, the application calculates the value of the expression and determines the conditions whose matching alarms will be shown in the alarm list. If the assigned tag or expression value is non-zero, alarms matching the alarm condition related to the connection will be shown. If the assigned tag or expression value is zero, alarms matching the alarm condition will not be shown. If a tag or expression is assigned to a connection, the connection settings override the settings on the Display tab, if any. At runtime, the Alarm Identifier specified on the Messages tab of the Alarm Setup editor will be written to the numeric tag assigned to the AlarmIdentifier connection only if the Use Alarm Identifier check boxes are selected on the General tab of the graphic object's Properties dialog box and the Messages tab of the Alarm Setup editor. If the Alarm Identifier column is blank on the Messages tab of the Alarm Setup editor and the Use Alarm Identifier check boxes on both tabs are selected, zero will be written to the numeric tag.

## See also

Create an alarm list

Options on the Display tab of the Alarm List Properties dialog box

All properties

Columns on the Connections tab of a graphic object's Properties dialog box