
4 Communication settings and guide of HMI connecting with controller
com0/com1
HMI terminal
9pin D-SUB female/male
Controller terminal
8
pin Mini Din (
male)
3 TXD
2 RXD
5 GND
4 RXD
3
TXD
7
GND
RS485
com
0
/com
1
HMI terminal
9
pin D-
SUB female
/male
Controller terminal
1
RX-
6
RX+
5 GND
B
A
SG
4.31 Inovance Electric Corporation
◎Serial Communication
H2U H2U-3624MR CPU direct
(
don’t support multi station
)
Modbus RTU*
1
COM1
NOTE: *
1
Support multi-station
◎System configuration
R
H2u
RS422 on the CPU unit RS485-4
Setting Your owner cable
RS485 on the CPU unit RS485-2 Setting Your owner cable
RS485 on the com1 RS485-2 Setting Your owner cable
Modbus
RTU
RS485 on the CPU unit RS485-2
Setting Your owner cable
RS485 on the com1 RS485-2 Setting Your owner cable
◎Communication Setting
Inovance H2u protocol
HMI Setting
HMI monitor protocol communication: 9600, 7, even, 1; station: 0
RS232
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