We have upgraded our Server 2008 to Server 2012. And upgraded our lookout software 6.7 to 6.7.1 as well.
We are having issues using the modbus ethernet driver with 2 Yaskawa drives on the 6.7.1 Server 2012. We have 10 PLC's that we talk using this driver with no issues Server 2012.
On Server 2008 the connections to the Yaskawa drives work using the modbus ethernet driver.
However they do not work with Server 2012. We can ping the drive and get good response.
The following is what we get from the diagnostic file
06:13:35.3 - PLC_VFD1 ->
Open socket: Waiting for connection to complete, 0x2733
06:13:55.3 - PLC_VFD1 ->
Open socket: Waiting for connection to complete, 0x2733
The other issue we are seeing is that even thou Users are setup with Level 10. Passwords cannot be updated. Says we don't have user rights