ricicle Posted September 25, 2006 Report Posted September 25, 2006 Hi all, I had an old siemens pg720 laptop that used to communicate with an s7 plc through the MPI port.I now have another laptop running microWIN SP3.Can I use just a standard rs232 cable to communicate with a s7 226 as the new laptop has no MPI port,and will the MPI cable work as a rs232 cable? thanks Ricicle Quote
gruntstripe Posted September 25, 2006 Report Posted September 25, 2006 Hi Ricicle, If your now using just a regular laptop ie. not a PG then a standard RS232 cable won't allow comms. The S7 200 (226) communicates via RS485 so you require the RS232/RS485 converter: 6ES7 901 3CB30 0XA0 Quote
Crossbow Posted September 26, 2006 Report Posted September 26, 2006 They also offer a USB to PPI cable, though the part number eludes me at the moment. Quote
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