All Ladder programming download /upload program of Siemens S5 PLC is equipped with a RS232 converter to the TTY converter.For The S7 series type can be programmed with a bus to RS232 Converter MPI.


 The easiest way is, this special cable from your local Siemens. The operator of terminals can be programmed, but with a normal cable. The cable can have the following to the OP series of the user is displayed.

Omron PLC Cable for S5 and S7 Series RS232 communication

Siemens_PLC_Cable_db9_to_15

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