Configure an OPC DA Server

A Plant SCADA OPC DA Server is configured in the Topology activity.

To add an OPC DA Server process:

1. In the Topology activity, select Edit.

2. From the drop down menu below the Command Bar, select OPC DA Server.

3. Add a new row to the grid.

4. Type the required information in each column, or in the Property Grid (see OPC DA Server Properties for a description of each property).

5. Click Save.

You can configure as many OPC DA servers as required in a project, however you can only have one per computer.

To successfully operate an OPC DA Server, you will need to correctly configure its DCOM settings based on your client requirements. See the topic OPC DA Server DCOM Settings.

Note: With the release of Plant SCADA 2026, encryption is enabled by default for Plant SCADA runtime computers and CtAPI. To function as part of an encrypted system, you need to configure an OPC DA Sever to run as a service. For more information, see Run an OPC DA Server as a Service.

See Also

OPC DA Server Properties