# Controller Communication with the License Server

Functionality can be added temporarily or permanently to a controller through the Functionality Management System. The added functionality is managed by a license server. It can be accessed through the controller GUI, the web GUI, or the ToolsTalk 2 GUI.

The address to the server must be configured, this is done in the controller Settings .

To set the communication between the controller and the license server:

1. Select a controller in the Plant structure .

2. Go to theSettings tab.

   The workspace area displays the Settings menus.

3. In the License Server menu, enable or disable the communication by setting the switch to the desired position.

4. If the communication is enabled, set the Server host address.

5. If the communication is enabled, set the Server port number.

6. Click the Sync button to synchronize the functionality management between the controller and the license server.

License server parameters
Parameter | Description | Default | Comment
--- | --- | --- | ---
License server enabled | Enables or disables communication to the license server. | Off |
Server host | The IP address of the server. |  |
Server port | Port number of the server. |  |
Sync | Command button. Synchronizes the licenses with the license server. |  | Visible when the communication is enabled.

The Sync command forces a synchronization between the controller and the license server. Synchronization shall normally occur automatically on a regular basis if the controller is in normal communication with the server. The command button may be used if synchronization has not been performed on a regular basis.

Relevant Information

- Pushing Configurations to a Controller