Guest ganesh Posted October 18, 2004 Report Posted October 18, 2004 i'm using s7 226 plc for my application. i program my plc through port 1 of the plc through ppi. i want to use port 0 to connect to wonderware through modbus. i cudnot succeed in part, i.e communicating between wonderware and s7 200. i use modbus rtu i/o server which comes with wonderware for modbus communications. i have only 226 processor and digital i/o modules. pls help me . thanks in advance.
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