Hi,

In the tag management you can add the column for the tag status.

Right click the column title and select "Unhide" and select status or quality (I don't have a WinCC to look at, so don't have the exact name).

Then you should get an indication of the reason for the questionmarks.

Hope it helps.

Hello Alsandare

The connection looks OK. perhaps the tags have the state initial and this is unsure...

The best test would be to dynamise one of the tags to an IO field in a Screen.

Then you can see if it works, try to insert a value-> does the state then change?

Bye Murof