Primary/Secondary Machine Names

Browse for the primary machine that specifies the preferred connection that should be made to an OPC server and the secondary machine which specifies the fallback connection that should be made to an OPC server when communications to the primary machine are unavailable. Every time a new client connection is made to the underlying server, the application will first attempt to make a connection to the server running on the primary machine. In the event that the connection to the primary fails or communications to the primary is lost, a connection to the secondary server will be attempted and, if available, established. Depending on the connection mode, you can configure the application to automatically establish communications with the primary machine when it becomes available.