Corrected from:
Controller c520, c550, c750 from V1.5
(Update via Easy Package Manager)
Response of the new version:
When logging in with the PLC Designer there is no disconnection.
What happens?
When going online with the PLC Designer, the connection is interrupted with the message "No connection to the device. Please rescan your network".
Afterwards no connection can be established from the PLC Designer to the controller.
When does the behaviour occur?
After changing parameters (without code changes) and then going online with download of the parameter changes, it can happen that the PLC Designer loses the connection to the controller and cannot re-establish it afterwards. The PLC continues to run and the device can still be reached via ping, but the gateway on the controller no longer works.
The problem only occurs if "Gateway = localhost" is used in the communication settings.
Which products are affected?
Controller c520
Controller c550
Controller c750
Short-term measures
Use "Gateway = <IP address of the controller>" in the communication settings. If the problem has already occurred, a restart of the controller is necessary.
Evaluation/Recommendations:
Automatic Translation
