Xinje XD Series User Manual

275
Note:
1. COM2 with *1 only show the RS232 pins.
2. XD/XL series PLC
，
RS232 do not support full-duplex, so it can only communicate in
single direction.
3. RS232 communication distance is short (about 13m); RS485 is suitable for longer distance.
485 wiring methods
Connect all A terminals, connect all B terminals. A is RS485+, B is RS485-.
Application
：
One xinje XD3 series PLC controls 3 XC series PLCs, slave PLCs follow the
master’s action. (Master PLC Y0 ON, then slave PLC Y0 ON; Master PLC Y0 OFF, then
slave PLC Y0 OFF) Precondition: on-off of Y0 makes communication have enough time to
react. Also three slave PLCs can be not that synchronous (not fully synchronous).
Method 1 usual program
Y0
Y0
COLW K1 H4800 Y0 K2
COLW K2 H4800 Y0 K2
COLW K3 H4800 Y0 K2
The program takes serial port 2 as example, so corresponding communication flag is the serial
port 2’s. About other serial port, please refer to appendix 1. Serial port, please refer to
appendix 1.
Method 2 use broadcasting function
：
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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)