16 channels.
Input: DC-10 ~ 10V, DC-20 ~ 20mA.
Output (resolution): 0 ~ 4000, 0 ~ 8000, 0 ~ 12000.
38 point terminal station.
Analog I/P multiplexing unit A3NCPUP21-S3 PDF.
Detailed analysis of the process and work characteristics of the controlled object,
To understand the coordination between the controlled object machine, electricity and liquid,
The control requirements of the controlled object for MITSUBISHI PLC control system are put forward,
Determine the control program, to develop a design task book A3NCPUP21-S3
How to determine the input / output device of MITSUBISHI plc.
According to the control requirements of the system,
All input devices and output devices required for the determination of the system,
To determine the input / output device related to the MITSUBISHI PLC,
To determine the I/O PLC points A3NCPUP21-S3 PDF. Output points: 32 points.
Voltage: DC24V.
OFF leakage current: 0.1mA.
Output type: bidirectional thyristor output (type sink) A3NCPUP21-S3 PDF.
Response time: 2ms.
32 points / a common end.
50 point terminal station.
With the surge absorber.
Each scanning process. Focus on the input signal sampling. Focus on the output signal to refresh.
Input refresh process. When the input port is closed,
Program in the implementation phaase, the input end of a new state, the new state can not be read MITSUBISHI Programming Manual A3NCPUP21-S3 Manual.
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 MITSUBISHI Programming Manual .
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 MITSUBISHI Programming Manual .
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 reequirements,
Should consider the best performance to price ratio, a reasonable choice of PLC A3NCPUP21-S3 Programming 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 A3NCPUP21-S3 Manual.
Read only memory. Manufacturers use, content can not be changed, power does not disappear.