Hello Everyone,

I'm using  CPU 317-2 PN/DP. The problem is WinCC is not communication with plc.

I tried pinging from engineering station and I'm getting the reply.i can go online, edit and upload the program from engineering station.

I also tried to ping the plc from WinCC instaled pc and there too am getting the reply.

I checked the diagnostic using the WinCC tool and it says that "First error code: 8304" and "Last error code: 8304"

ANy help would be appreciated.

Regards, 

Vernon Dsouza

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Split from Connection ModbusTCP with error on AG_LSEND.