TS11894
Member
Having some issues initiating a connection to a S7-1500 PLC over Modbus. I have an OB created with a MB_SERVER block and a configured port (Port 505). I downloaded ModScan and was able to connect to IP address and Port 505; I could both read/write values.
When I later re-opened ModScan, I could no longer make a connection without any PLC changes.
Anyone know why it connects intermittently?
When I later re-opened ModScan, I could no longer make a connection without any PLC changes.
Anyone know why it connects intermittently?