# Create Interlocked push buttons

An Interlocked push button is one of a group of buttons that have the same connection tag. The buttons function together in much the same way as the station selector buttons on a car radio: pressing one cancels the other and makes a new selection. Although Interlocked push button function as a group, you add them to the screen one at a time.

When the operator presses the Interlocked push button, the application sends the button’s value to the data source and highlights the selected button.

The Interlocked push button remains highlighted as long as the value at the data source is the same as the button value. Therefore, only one button in the group is active and highlighted at any given time, unless you assign the same value to two or more Interlocked push buttons.

Important: | Do not use push buttons for emergency stops. Emergency stop buttons must be hard-wired.

Tip: | You can use a single Interlocked push button to set a value.

## To create an Interlocked push button

1. In the Graphics Display editor, select Push Button > Interlocked from the Objects menu.
2. Drag the mouse to position and draw a rectangle the general size and location you want the button to be.
3. Double-click the button to open its Properties dialog box.
4. In the Properties dialog box, specify how the button looks, the button’s value, and its tags.

## See also

Set up general properties for an Interlocked push button

Set up states for an Interlocked push button

Set up connections for the Interlocked push button

How the Interlocked push button works at run time

Example: Use Interlocked push buttons

Keywords: push button