Activate/Deactivate the Communication Driver

When you activate the Communication Driver, it starts communicating and accepting requests from client applications. The Communication Driver can also be activated by an OPC client connection request.

There are three different modes of activating a Communication Driver instance.

1. Activate (Auto start after reboot): The Communication Driver instance is started and activated automatically when the computer starts up.

2. Activate until reboot (Manual start after reboot): The Communication Driver instance gets deactivated after a reboot, and has to be activated manually.

3. Desktop mode (Must start from command line): Activates the instance from the command-line only, and not from the OCMC. This option is enabled for the base instance of the Communication Driver only. For all cloned instances, this option is disabled.

   Note: Use the desktop mode activation for DDE/FastDDE communications.

Activate an instance of the Communication Driver

4. In the OI Server Manager, expand the node group, and then expand Local.

5. Select and right-click the Communication Driver instance you want to activate, and click one of the modes to activate the server.

   

   Selecting any one mode of activation disables all other activation options in the menu. To activate the server in any other mode, you must deactivate the server first.

Deactivate an instance of the Communication Driver

6. In the OI Server Manager, expand the node group, and then expand Local.

7. Select and Right-click the Communication Driver instance you want to activate, and select Deactivate (Must be activated to run again).

8. Read the warning message and click Yes.

   Deactivating your Communication Driver stops it from communicating with client applications.

Note: The Communication Driver with active OPC clients does not stop until the last OPC client shuts down.