
4 Communication settings and guide of HMI connecting with controller
Hitachi EH-A23DR RS232 communication cable
HMI terminal
9pin D-SUB female/male
com2
3 TX
2 RX
5 GND
8 TX
7 RX
5 GND
com0/com1
Controller
RJ-45 terminal
1 SG
5 SD
6 RD
7 DSR
2 VCC
Hitachi EH-A23DR RS422 communication cable
com0/com1
HMI terminal
9pin D-SUB female
\
male
1 RXD-
6 RX
D+
4 TXD-
12 SDN
13 SDP
7 RDP
9 TXD+
5 GND
11 SG
9 RT
10 RDN
Controller terminal
15 pin D
-
SUB male
Ethernet Cable
Cross-connection or crossover network cable can be used as communication cable via the hub
Refer to
4.3 Download by Network Ethernet for method of making connection cable.
4.28 Hollysys Corporation
◎Serial Communication
Series CPU Link Module Driver
Hollysys LM
LM3109
Serial port0 on CPU 485
Serial port1 on CPU 232
RTU
LM3107 RS232 on CPU
Hollysys LK RS232 on CPU
RTU
◎Ethernet Communication
Series CPU Link Module Driver
Hollysys LK LK210 Ethernet interface on CPU
Hollysys LK Modbus TCP Slave
*1 Support dual redundancy
◎Serial System Configuration
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