Under specific circumstances the reconnection of the S7TIA driver did not work. If reconnect worked, but loading of PLC symbols failed, e.g. because of a timeout with large symbol libraries, it could happen that no further disconnect was performed and the connection stayed disturbed.
The issue has been addressed and the reconnection works now as expected.
To benefit from this fix:
- Update your zenon Software Platform to the latest build of zenon 11 or higher.