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H Series Cable

The document outlines the cable configuration between Hitachi PLC models (EH-150 and H-series) and a PC using a D-sub 9 pin connector. It details the pin assignments for various signals such as DCD, RXD, TXD, and others, along with the baud rate settings for communication. The EH-150 series features a PHL switch for manually selecting the baud rate between 4800bps and 19.2kbps.

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51 views1 page

H Series Cable

The document outlines the cable configuration between Hitachi PLC models (EH-150 and H-series) and a PC using a D-sub 9 pin connector. It details the pin assignments for various signals such as DCD, RXD, TXD, and others, along with the baud rate settings for communication. The EH-150 series features a PHL switch for manually selecting the baud rate between 4800bps and 19.2kbps.

Uploaded by

info.imcsolutions
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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Cable configuration between Hitachi PLC and PC

EH-150
EH-CPU port 1 / 2 PC D-sub 9 pin
RS (1) (1) DCD
DR (2) (2) RXD
RD (3) (3) TXD
SD (4) (4) DTR
ER2 / PHL (5) (5) GND
ER1 / PN12 (6) (6) DSR
CD / PV5 (7) (7) RTS
PG5 / PG5 (8) (8) CTS
(9)

H-series (Big-H series / H-200 / 250 / 252B/C / H-Board) [ 19.2 kbps ]


H-series PC D-sub 9 pin
(1) (1) DCD
SD (2) (2) RXD
RD (3) (3) TXD
RS (4) (4) DTR
CS (5) (5) GND
(6) (6) DSR
DR (7) (7) RTS
PHL (8) (8) CTS
SG (9)(10) (9)
RV5 (11)(12)
NV12 (13)
PV12 (14)
(15)

H-252C (port 2) [ 19.2 kbps ]


H-252C (port 2) PC D-sub 9 pin
DCD (1) (1) DCD
RD (2) (2) RXD
SD (3) (3) TXD
PHL (4) (4) DTR
SG (5) (5) GND
ER (6) (6) DSR
RS (7) (7) RTS
CS (8) (8) CTS

4 pin 3 pin
6 pin
1 pin
8 pin
7 pin

2 pin
8 pin 5 pin
1 pin
EH-150 : Connector on CPU H-252C port 2 : Connector on CPU

H-series PLC use PHL signal for switching the baud rate 4800bps / 19.2kbps. When the PHL
signal is high, the baud rate is 19.2 kbps.
EH-150 series has PHL switch, that can select baud rate of port 2 manually. When the PHL
switch is high, +12V is output from pin 5 (PHL) of port 2.

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