cheapest way to make a multi master ppi cable

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EnBomp

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rs-232/ppi multi-master cable

does any one have the schematic or design for the multimaster RS232/ppi cable for siemens plc step 7 200
 

ppi cable

The "cheapest" way will be to buy it. In Europe the price for USB version is about 100 Euro. There are some trials to reverse engineer the protocol but there aren't any complete results.
 

rs232 ppi multi master cable

I agree with this.A colleague tried to connect at on Siemens PLC with a home made cable and the result was he burn up his notebook.So,if you find some schematics my advise is for you to be careful
Best regards!
Venix
 

usb ppi multi-master cable

Try this:

**broken link removed**

Best regards!
Venix
 

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