2 channels.
50kpps.
Count input signal: DC5/12/24V.
External input: DC5/12/24V.
Output: Transistor (open collector) 0.5A DC12/24V.
Output: DC12/24V, 0.3A.
47 point terminal station.
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 A73CPU-S3 Common Instructions Manual A73CPU-S3 Programming Manual A73CPU-S3
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 A73CPU-S3 Common Instructions Manual A73CPU-S3 Programming Manual . A set of 5 (LOGO removable, man-machine interface provides one).
Applicable model: A985GOT (-V). Type of input: DC source.
Input points: 16 points.
Input voltage: DC24.
Input current: 7mA.
Connection mode: terminal row.
Common common point: 16.
Functional block diagram language is a kind of PLC programming language, which is similar to digital logic circuit A73CPU-S3 Common Instructions Manual A73CPU-S3 Programming Manual .
The function module is used to represent the function of the module,
Different function modules have different functions.
Functional module figure programming language features: functional block diagram programming language is characterized by a functional module for the unit,
Analysis and understanding of the control scheme is simple and easy: function module is to use graphical form of expression,
Intuitive, for a digital logic circuit based on the design of the staff is very easy to master the programming;
Control system with complex scale and complex control logic,
Because the function module diagram can clearly express the function relation, the programming debugging time is greatly reduced. Output points: 32 points.
Voltage: DC5/12V.
Output type: Sink type.
Response time: 1ms.
16 points / a common end.
38 point terminal station.
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 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 the best performancce to price ratio, a reasonable choice of PLC A73CPU-S3 Common Instructions Manual A73CPU-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 A73CPU-S3 Common Instructions Manual A73CPU-S3 Programming Manual .
Read only memory. Manufacturers use, content can not be changed, power does not disappear.