Hi everybody,

I hope you can help me out with the following issue;

We updated our 1517F-3PN/DP to TIA Portal V20 and also upgraded the FW to 3.1.5.

Before this update, we already had protection against unauthorized access by access levels and passwords. "Normally" HMI-access was only possible without password.

After the update, we had to implement/adopt the user management restrictions, so we did.

But after this, it is not possible to read DB's from the PLC anymore!

In my opinion it is because "HMI-access" is chosen in Protection & Security -> Access control, but I can't change this anymore. I also think there is a correlation with "new" user management.

Does anyone knows how to fix this, so I can have a logging-application have access to the PLC again?

Thanks in advance!