If PNIO status of the device 0x81813F02 (DCP no RealStationName) is shown while you are trying to start-up a Profinet Controller in Codesys, please try these solution:
- Adjust the Watchdog
- Check theGSDML File is correct or not
- Disable the Firewall
- Profine Device name is set or not, and also is it correct or not