User`s manual

SH-300 User’s Manual Connection with PLC
Page 75 of 103
4.14 HITACHI MICRO-EH Series
SH-300 can communicate with HITACHI MICRO-EH series PLC, the communication port is the
programming port of PLC
SH-300 software configuration:
Item Content
SH-300 COM port 9 pin COM port
PLC COM port Programming port
Default parameter 19200bps、7bits、1stop、Even
Station No. 0 (0 is fixed and can’t be changed)
Distance (Max.) 15m
Communication mode RS232
Cable type Special cable
Inner relay address R0-R7BF M0-M3FFF
Register address WR0-WRFFF WM0-WM3FFF
Connection guidance of Special cable:
1 GND
SH-300 side 2 RXD 2 PLC side
9 pin D shape 3 TXD 5 RXD
6PIN
Female plug 5 GND 6 TXD
7
(when SH-300 communicates with HITACHI MICRO-EH series PLC you are recommended to
use the programming cable )
The picture for 6 pin Female plug