Enter 32 points.
5mA DC24V.
Response time: 0.3ms.
32 point 1 public.
Output 32 points.
DC12/24V.
Leakage current: 0.1mA OFF.
Response time: 1ms. 32 point 1 public.
Protection function.
Surge.
40 pin connector.
Switching value, also known as logic, refers to only two values, 0 or 1, ON or OFF.
It is the most common control, it is the advantage of PLC control,
Is also the most basic application of PLC A2NCPUP21-S4 Manual A2NCPUP21-S4 User's Manual A2NCPUP21-S4
Switch volume control is designed to,
According to the current input combination of the switch quantity and the history of the input sequence,
So that PLC generates the corresponding switching output,
In order to make the system work in a certain order.
So, sometimes also known as the order control A2NCPUP21-S4 Manual A2NCPUP21-S4 User's Manual.
And sequential control is divided into manual, semi-automatic or automatic.
And the control principle is decentralized, centralized and hybrid control three. Output points: 32 points.
Voltage: DC24V/AC240V, 2A/1 point, 4A/ public end.
OFF leakage current: 0mA.
Output type: relay output.
Response time: 12ms.
8 points / a common end.
50 point terminal station.
Each scanning process. Focus on the input signal sampling A2NCPUP21-S4 Manual A2NCPUP21-S4 User's Manual. Focus on the output signal to refresh.
Input refresh process. When the input port is closed,
Program in the implementation phase, the input end of a new state, the new state can not be read.
Only when the program is scanned, the new state is read.
A scan cycle is divided into the input sample, the program execution, the output refresh.
The contents of the component image register are changed with the change of the execution of the program.
The length of the scan cycle is determined by the three.
CPU the speed of executing instructions.
Time of instruction.
Instruction count.
Due to the adoption of centralized sampling.
Centralized output mode.
There exist input / output hysteresis phenomena, i.e., the input / output response delay.
PLC selection with the development of PLC technology, more and more types of PLC products,
Function is becoming more and more perfect, and its application is more and more extensive.
Different series of different models of PLC has different performance, applicable occasions also have different emphasis,
Price also has a greater difference. Therefore PLC selection,
Under the premise of meeting the control requirements,
Should consider tthe best performance to price ratio, a reasonable choice of PLC A2NCPUP21-S4 Manual A2NCPUP21-S4 User's Manual.
System program memory for storing system program,
Including management procedures, monitoring procedures, as well as the user program tto do the compiler to compile the process of interpretation A2NCPUP21-S4 Manual A2NCPUP21-S4 User's Manual.
Read only memory. Manufacturers use, content can not be changed, power does not disappear.