Cause
Identical designations were entered for a PLC box containing bus data in the Rack ID and PLC card is placed on rack ID fields, which means that the rack is mounted on itself.
Solution
- Open the Properties <...> dialog of the corresponding PLC box.
- In the first tab, enter different data into the Rack ID and PLC card is placed on rack ID fields.
- Then start a new check run.
Note:
This check run only checks PLC boxes at which a configuration project is entered.