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6-2-6．Modbus serial port configuration
There are two ways to set Modbus communication parameters: 1. setting parameters by
programming software; 2. setting parameters by XINJEConfig tool;
1. Set parameters by programming software
When using programming software to configure the parameters of PLC serial port, the
version below V3.4 must use XNET communication mode, and the version above V3.4 can
also use Modbus communication mode (RS232 port).
(1) Use the USB download cable to connect the PLC with the computer. Here the USB
download cable is the HMI download cable, as shown below, the software must switch
to XNet communication mode.
(2) Open the programming software, click configure/PLC comm port settings. It will show
below figure:
(3) Click add, it will show two modes, modbus mode and free mode, please select modbus
mode, it will show below figure.
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