Cause

The structure identifiers in the full device tag are missing at an interruption point. (Only the preceding signs for the identifier blocks selected are displayed.)

Solution

Open the Property <...> dialog for the interruption point and click the [...] button next to the Full DT field. In the editable fields, enter the structure identifiers you want for the identifier structure specified in the project for interruption points, or select them using [...]. In the Prefix to Subcounter fields, enter the identifier for the DT. Click [OK] to confirm the entries.

Refresh the connections and then start a new check run.