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 AJ71C22 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 AJ71C22
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 AJ71C22 PDF. . "RS422 interface conversion cable packageExtension cable.
Length: 1000mm. RS-232 2 channel.
Transfer speed: 2 channels.
A total of 115.2kbps.
Input status and input information input from the input interface,
CPU will be stored in the working data memory or in the input image register AJ71C22 PDF.
And then combine the data and the program with CPU.
The result is stored in the output image register or the working data memory,
And then output to the output interface, control the external drive MITSUBISHI User's Manual.
Semiconductor circuit with memory function.
System program memory and user memory.
SSystem program memory for storing system program,
Including management procedures, monitoring procedures, as well as the user program to do the compiler to compile the process of interpretation MITSUBISHI User's Manual AJ71C22 Manual.
Read only memory. Manufacturers use, content can not be changed, power does not disappear. Series Name: A956GOT.
Size: 6 inches.
Resolution: 320 * 240.
Display device: STN monochrome display.
Display color: monochrome (white and black).
Power supply: DC24V.
Memory card: 1M.
The external model design model of creating the system function is mainly to consider the data structure, the overall structure and the process description of the software,
The interface design is usually only used as accessories, only on the user''s situation (including age, gender, mental status, education level, personality, ethnic background and etc MITSUBISHI User's Manual. ) to understand, to design an effective user interface;
According to the user model of the future system of the end user (for short),
In the end, it is consistent with the system image (external characteristic) of the system after the systeem is realized,
Users can be satisfied with the system and be able to use it effectively;
When the user model is established, the information given by the system should be considered,
System mapping must accurately reflect the syntax and semantic information of the system AJ71C22 Manual AJ71C22 User's Manual.
In short, only to understand the user, to understand the task in order to design a good man-machine interface.