Cable connection PC to PLC S7-300

SIMATIC S7-200/300/400, Step7, PCS7, CFC, SFC, PDM, PLCSIM,
SCL, Graph, SPS-VISU S5/S7, IBHsoftec, LOGO ...
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AlekMalek
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Joined: Wed Mar 27, 2013 2:37 pm

Cable connection PC to PLC S7-300

Post by AlekMalek » Thu Mar 01, 2018 12:39 pm

We have S7-300 and doesn't have cable to it. It seems that conneciton realize with RS-232 cable.
Can me make dirrect parallel connection to PC or we need USB - RS-232 special cable based on DB9 microschene?

CoMod
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Re: Cable connection PC to PLC S7-300

Post by CoMod » Thu Mar 01, 2018 4:23 pm

Siemens PLC use electrical interface RS-485 (DB9 socket) with Profibus /MPI hardware logic protocol http://s7detali.narod.ru/NET/PB.html
USB/PCI PC adapter
http://s7detali.narod.ru/CP5511/CP5711.html
http://s7detali.narod.ru/CP5511/CP_USB_MPI_Ali.html

Контроллеры Сименс используют электрический интерфейс RS-485 (DB9 разъём) с аппаратно реализуемым логическим протоколом Profibus /MPI

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