Xinje XD Series User Manual

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When master Y0 status changes, it broadcasts the status to all the slaves. The synchronization
of three PLCs is better than method 1.
6-2-8 Application
Example 1:
Following are the programs for reading and writing Modbus communication between 1
master station and 3 slave stations.
Program operation:
(1) Write master PLC Y0~Y11 status to slave PLC 2 Y0~Y11
(2) Read slave PLC 2 Y0~Y11 to master PLC M10~M19
(3) Write master PLC D10~D19 to slave PLC 2 D10~D19
(4) Read slave PLC 2 D10~D19 to master PLC D20~D29
(5) So as slave PLC 3 and 4
The following is a comparison of XC and XD series Modbus-RTU communication programs
for reference. The communication programs in XC series are as follows:
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Xinje XD Series Specifications

General

Input Voltage	24V DC
Storage Temperature	-20°C to 70°C
Protection Class	IP20
Type	PLC
Series	XD
Programming Language	Ladder Logic, Instruction List
Communication Interface	RS232, RS485
Power Supply	24V DC
Digital Inputs	Available (number varies by model)
Digital Outputs	Available (number varies by model)
Analog Inputs	Available (number varies by model)
Analog Outputs	Available (number varies by model)
Output Type	Relay, Transistor
Number of Inputs	Varies by model (see Digital Inputs and Analog Inputs)
Number of Outputs	Varies by model (see Digital Outputs and Analog Outputs)
Operating Temperature	0°C to 50°C
Humidity	5% to 95% (non-condensing)