# Publishing a global variable for OPC UA Clients

1. Prerequisite
2. You have created a global variable.
3. You have deployed the real-time application.

1. In the Data settings, click Variables.
2. The Global variables list is displayed. The list contains all global variables of the deployed real-time application.
3. Enable the check box of the variable you want to publish.

4. If you want to publish several variables, you can select several variables in the list and click the Publish button.

5. Click Apply.

1. OPC UA Clients can access the published variable.

Creating a global variable