PN: IRT configuration with default sync domain name is invalid

1. Create a new project.

2. Add PN controller "CIFX RE/PNM V3".

3. Add EDS based device "CIFX RE/PNS V3.5.35 - V3.x" to PROFINET_IO (any IRT capable device should do).

4. Right click controller, select "Additional functions / Topology Editor".

5. In Topology Editor connect ethernet ports of controller and device together.

6. Select controller and set "Synchronization role" = "Synchronized (IRT) master".

7. Select device and set "Synchronization role" = "Synchronized (IRT) slave".

8. Close Topology Editor.

9. Assign controller DTM to hardware in "Settings / Device Assignment".

10. Download configuration to controller.

11. Open controller's diagnosis.

It shows "Communication error" =  "General configuration fault. (0xC0000120)".

12. Goto "Extended Diagnosis / PNM_AP / Configuration state".

It shows "Last configuration error code" =  "0xC0CB000A".
-> PNM_AP_CFG_INVALID_DOMAIN_NAME

13. Disconnect controller DTM.

14. Open "PROFINET_IO / Settings / Station Timing".

15. Modify the value of "Sync domain name" and close window with OK.

16. Download configuration to controller.

Now PN controller is configured.