Xinje XD Series User Manual

425
Q14: Why data errors after using DMUL instructions?
A14:
DMUL operation instruction is 32 bits*32 bits=64 bits operation, the result occupies 4 words,
such as: EMUL D0 D2 D10, two multiplier both are 32bit (D1,D0) and (D3, D2), the result is
64 bits (D13, D12, D11, D10), so D10~D13 will be occupied. If these data registers are used
latter, operation will error.
Q15: Why the output point action errors after PLC running for a
while
？
A15:
It’s possible that output terminal is loose, please check.
Q16: Why expansion module does not work while power indicator is
ON?
A16:
It is likely the connection of module strips and PLC pins or CPU is not good. Compare the
CPU and expansion in cross contrast way to find the problems.
Q17: Why the signal input but cannot see the high speed counter
working
？
A17:
If high-speed counting is to be carried out, in addition to connecting high-speed pulse to the
input of high-speed counting of PLC, the corresponding high-speed counting program should
be written with functional instructions. For details, please refer to the relevant content of
Chapter 5 of this manual.
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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)