Dear Everyone,
I need a S7-200 programming port pinout.
I have an USB-RS232 with driver, and an RS232 to RS485 physical device(no need driver). My question is: Which is the 2pins, or 3(if i must use GND), that i need for programming. I find in google:
R/D + is 3.
GND is 5.
R/D - is 8.
Is it correct?
