Xinje OP320-A - 3-7-3．Cable Connection; 3-8．LG Master-K (Modbus) Series PLC (Multi-Function Port); 3-8-1．Connection Unit; 3-8-2．Communication Parameters

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3-7-3．Cable connection
CPU RS232 port:
OP LG Master-K80/120 RS232
9-pin D-type female port 9-pin D-type male port
（Diagram 1— fit for OP all series）
3-8．LG Master-K (Modbus) series PLC (multi-function port)
3-8-1．Connection unit
Connect through Modbus Rtu protocol
Series
Connected
module
Port Cable Choose PLC type in OP20
K80
K120
Modbus Rtu
protocol
RS232
Diagram 1
LG Master-K80/120S multi-function port
(Modbus)
Note: For LG Master K-Modbus Rtu, please turn ON switch 2 and turn OFF switch 1. (it is no
need to change the switch for LG Master KxxxS programming port).
3-8-2．Communication parameters
LG Master-K80/120（Modbus Rtu）series PLC OP software settings:
Parameters
Recommend settings
Choices of settings
Notes
PLC type
LG Master
-
K80/120
Multi-function port
（Modbus Rtu）
Choose the correct PLC type in
OP20
Port RS232 RS232
Data bit 8 7/8 Accord with PLC port parameters
Stop bit 1 1/2 Accord with PLC port parameters
Parity
Even parity
Even /odd /no parity
Accord with PLC port parameters
Baud rate
9600
4800/38400/9600/
115200/19200/187500
Accord with PLC port parameters