FF Builder OPC Error and LD Diaganostic Communication Error.
Few things to check:
- Check configure DMFF is performed properly with right OPC server IP and HSE subnet ID
- Check if Netowrk Configuration is done properly like Client Server IP, OPC Server IP settings in the FF Fieldbus Builder
If above two things are done properly then it should be possible to reconcile and connection to OPC
If still problem exists share some more screenshots of Network configuration, DMFF Configure and provide details of FF OPC Server IP address and Client Server network