Hello;

Whenever you are configuring a Profinet network, you must also set à Profinet name for your devices. Forgetting to set the device Profinet name is often the cause of issues you are facing.

Can you check if that could cause the error in your project?

Hope thus helps, 

Daniel Chartier 

Edit:

for more information on Profinet names open the following link:

https://profinetuniversity.com/naming-addressing/profinet-device-names/