Xinje XD Series User Manual

426
Q18: C language advantages compared to ladder chart?
A18:
(1) XD/XL series PLC supports almost all C language functions. When it comes to complex
mathematical operations, the advantage of C language is more obvious.
(2) Enhance the confidentiality of the program (when using file-advanced storage mode, C
language can not upload);
(3) C language function block can be called in many places and different files, which greatly
improves the efficiency of programmers.
Q19: What’s PLC output terminal A, B
？
A19:
PLC output terminal A, B are RS485 terminals of PORT2 on PLC.
Q20: What’s the difference of sequence function BLOCK trigger
condition: rising edge triggered and normally closed conduction?
A20:
Rising edge triggered: when the condition is triggered, block executes in order from top to
bottom; Normally closed conduction: when the condition is triggered, Block will execute in
order from top to bottom, return to the top and execute again until the normally closed
conduction breaks off. The cycle stops when the last one finished.
From up to down, run the instruction from up to down, cyclic run the instruction
one by one
Q21: What are the download modes of XD/XL series PLC and what
are their characteristics?
A21:
XD/XL series PLC has three download modes, which are:
Common download mode
tudonghoatoancau.com

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)