18. September 2015 | Leave a comment TIA Portal WinCC RT Advanced OPC DA Server this option is only available on Panel PC’s like IPC477D, on MP Panels, but not on KTP Panels. I’m using opctestclient from Rockwell Automation, but you can use any other OPC Client take a look here for OPC Clients http://www.opcconnect.com/freecli.php here a short and simple howto video: to activate TIA Portal WinCC RT Advanced OPC DA Server just follow this steps: Open TIA Portal navigate to Runtime Settings and open it select services select checkbox “Operate as OPC Server” and choose OPC DCOM Server now just start the runtime (or transfer it to your Panel) and connect to OPC Server via OPC Client