I'm working on a project where I have to connect PP877 with AC500 plc using Codesys OPC DA Classic. When I simulate the Scada in Panel Builder 800 on my PC everything works fine. The codesys OPC server is installed locally on my PC. But when I download the Scada software to the real PP877 then I have no connection. On the Panel Builder I choose OPC Classic Server with remote option because the codesys OPC server is installed on my PC. I know that I have to configure DCOM settings in order for this to work but I can't do that on PP877 because I have no access to the operating system.