I am working on already created gateway backup. That gateway backup has OPC UA connectivity to PLC. I dnt have PLC with me now so i am not able to check backup with full functional as tags are offline. Is there any way to check backup with offline OPC UA connection.?
No, you have to set up simulations when offline. What kind of PLC?
For quick test of UI, you can also manualy change your opc tags to memorie tags. Don't forget to backup original tags before.