Set up connections for a Multistate push button

Use the
Connections
tab of the
Multistate push button Properties
 dialog box to set up tags and expressions for the button.
To set up tags and expressions for a Multistate push button
  1. In the
    Graphics Display
     editor, double-click the button to open its
    Properties
    dialog box.
  2. Click the
    Connections
    tab.
  3. Assign a tag or expression to these connections:
    Value
    A read-write connection. Assign a tag to this connection. The application writes the value corresponding to the new state to the tag’s data source. If the
    Next state based on
     option (on the
    General
     tab) is set to Value connection, the application reads this tag to determine which state to show next.
    Indicator
    A read connection. You can assign a tag or an expression to this connection. The application reads the value of the connection at the data source, and updates the object’s display to reflect the state corresponding to the value.
    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.
    If you assign this connection, the button does not show the current state until it receives a response from the Indicator connection. If you do not assign this connection, the button's state corresponds to the value at the Value connection.
    TIP:
    To provide visual feedback that the Value connection has been written to the data source, assign different tags to the Value and Indicator connections. Configure the data source to pass the Value connection’s value to the Indicator connection.
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