Do you have correct information? If not maybe you've got RTU over TCP connection. In this case you have to check "RTU over TCP" in server settings.
Or you've got bad ethernet connection. Try to increase "Poll interval" from 1000 ms to 2000ms.
The administrator has disabled public write access.
TeslaSCADA2 - Modbus Connection Lost but works
2 months 1 day ago #1427