Internet PLC Forum

General => General Discussions => Topic started by: marsu1821 on April 22, 2005, 07:18:49 AM

Title: difference between PLC cables ??????
Post by: marsu1821 on April 22, 2005, 07:18:49 AM
Anybody could explain what is the difference between S7 200 cable and S7 300 cable for S7 Siemens PLC?
I know these two cables must convert data signals from computer (RS232) to PLC (RS485) in order to program PLC...but I don't understand why they are different in the catalog...

Thank you for advance