According to the control requirements of the system, using the appropriate design method to design MITSUBISHI PLC program.
Procedures to meet the requirements of system control as the main line,
Write one by one to achieve the control function or the sub task of the program,
Gradually improve the functions specified by the system A953GOT-SBD PDF.
MITSUBISHI PLC initialization procedure. After MITSUBISHI PLC on power, the general need to do some of the initial operation,
In order to start making necessary preparations, to avoid the wrong operation of the system A953GOT-SBD
The main contents of the initialization program are: to some data area, counter and so on,
Data needed to restore some of the data area,
Set or reset some relays,
For some initial state display, etc A953GOT-SBD PDF. . "Series Name: A985GOT.
Size: 12 inches.
Resolution: 800 * 600.
Display equipment: high brightness TFT color display.
Display color: 256 color.
Power supply: AC100-240V A953GOT-SBD PDF.
Authentication: UL/cUL/CE.
Man machine interface (Machine Interaction Human, referred to as HMI), also known as the user interface or user interface,
Is a communication interface between human and computer,
Is an important part of the computer system.
Is a medium for interaction and information exchange between the system and the user,
It realizes the transformation between the internal form of information and the acceptable form of human being MITSUBISHI User's Manual.
Where there is a man-machine interface in the field of human computer information exchange. The A1SD61 high speed counting module can receive up to 50KHz of pulse signals,
The signal can be counted when the input pulse is rising and the falling time is greater than 500 MITSUBISHI User's Manual.
This component has a 32 bit signed binary count range,
Counter can be preset, can also use the external signal or the control program will stop counting MITSUBISHI User's Manual.
Structured text language is a programming language that describes a program with a structured description of the text.
It is a programming language similar to a high level language. In large and meddium
Structured text is often used to describe the relationship between the various variables in the control system based on the PLC system A953GOT-SBD Manual.
Mainly used for other programming languages more difficult to achieve the user program.
Sequential function flow chart language is designed to satisfy the sequential logic control.
The process of sequential process action is divided into steps and transformation conditions,
According to the transfer condition, the control system is distributed in the function flow sequence,
Step by step according to the sequence of actions.
Each step represents a control function, represented by the box.
In the box, the ladder logic is used to complete the task of the corresponding control function.
This programming language makes the program structure clear and easy to read and maintain,
Greatly reduce the programming workload, shorten the programming and debugging time.
Used in the system of the size of the school, procedures for more complex occasions.
Sequence function flow chart programming language features: to function as the main line, in accordance with the functional flow oof the order of distribution, clear, easy to understand the user program,
Avoid the defect of ladder diagram or other languages,
At the same time, the use of ladder language to avoid the use of ladder programming,
Due to the compllicated mechanical interlock, the structure of the user program is complex and difficult to understand,
User program scan time is also greatly reduced A953GOT-SBD Manual A953GOT-SBD User's Manual.