# Set up connections for the list indicator (Connections tab)

## To set up tags and expressions for the list indicator

1. In the Graphics Display editor, double-click the indicator to open its Properties dialog box.
2. Click the Connections tab.
3. Assign a tag or expression to this connection:

   Indicator

   A read connection. You can assign a tag or an expression to this connection. If you assign this connection, the object does not display the value sent to the Value connection until it receives a response from the Indicator connection.

   If you assign a tag, the application reads the value of the tag at the data source, assigns this value to the connection, and updates the object in the display to reflect the state corresponding to the value or least significant bit value (depending on the trigger type).

   If you assign an expression, the application calculates the value of the expression and updates the object’s display to reflect the state corresponding to the value or least significant bit value (depending on the trigger type).

## See also

Configure the list indicator (General tab)

Set up states for the list indicator (States tab)

How the list indicator works at run time

Example: Use a list indicator

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