wiring diagram of PLC connection cable (pin-out)

MEMO19777 · Nov 24, 2005

I Want to make connection cable between my PC and PLC(Hitachi), but the problem that i just have the wiring diagram of the connection cable from the PLC side and i need to know the pin-out diagram of (9pin RS232) connector from PC side.
in other words you are kindly just to help me and fill this table:

PIN No.

(PLC side)

SIGNAL ABBREVIATION

SUB-D(9)PIN No.

(PC Side RS232 Connector)

1

SG1

2

VCC (+5v)

3

DTR1(ER)

4

CD1(DCD)

5

SD1(TXD)

6

RD1(RXD)

7

DR1(DSR)

8

RS1(RTS)

SNK · Nov 24, 2005

Serial on a STD PC is pins 2, 3 and 5 respectively.

PC 3 TXD
PC 4 DTR
PC 2 RXD
PC 8 CTS
PC 5 GND

This is the PC side only. I have never worked with Hitachi, but they have to be the same as any other system out there. Chances are, do a cross connection to 2-3 and 5. Forget about the others at first.....or buy the damn cable.

ceetec · Nov 24, 2005

Cable for connection PC to PLC Hitachi

PC, 9 pin, Cannon, female ............ EH-CPU, RJ45

1 (DCD), 4 (DTR), 6 (DSR) ------------- 7 (DR1)
2 (RxD) ----------------------------- 5 (SD1)
3 (TxD) ----------------------------- 6 (RD1)
5 (SG) ----------------------------- 1 (SG1)
8 (CTS) ----------------------------- 8 (RS1)

osama_cheaib · Apr 3, 2006

the connect cable diagram

hi to all
i have the attached pdf file for the cable pin out
best regards

eng_mohammed · Mar 21, 2015

thanks alot

NCA-AUTOMAÇÃO · Jan 4, 2024

Good morning everybody!
Is it for connection with the eh-cpu208,208a?
In the pdf it describes it to the micro eh, so that's a doubt!
A great year to all!

wiring diagram of PLC connection cable (pin-out)

MEMO19777

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SNK

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ceetec

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osama_cheaib

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eng_mohammed

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NCA-AUTOMAÇÃO

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