Design method of building block multi-single-chip microcomputer control system with preset programs

Abstract

The invention relates to a design method of a building block multi-single-chip microcomputer control system with preset programs. Designers add single-chip microcomputers, practical software and communication interfaces to the conventional module form of the control system to form building blocks with different functions for different industries and different equipment. According to the functional requirements, select the building blocks, and connect each building block through the serial bus network to realize the complete function of the control system. The program of each building block is simple, easy to modify, fast to execute, and not prone to bugs; adopting the serial bus mode can better realize distributed control, reduce system size, shorten wiring, and reduce interference; users no longer need programming, You only need to set parameters, and the debugging workload is greatly reduced. That is, the user burden is reduced, and failures or even accidents caused by improper user programming are avoided. Treat the motor driver as a building block and a part of the control system to make it seamlessly connected and make the intelligence of mechanical equipment more convenient.

Description

technical field [0001] The invention relates to an industrial control system, in particular to a design method of a building block multi-single-chip microcomputer control system with preset programs. Background technique [0002] At present, the intelligent control system of mechanical equipment is mainly constructed by using a programmable logic controller (hereinafter referred to as PLC) or using an industrial computer bus controller (hereinafter referred to as PCbase). [0003] Invented in 1969, PLC has developed rapidly due to its reliability and convenience, reached its peak in the 1980s and 1990s, and is still the mainstream product of mechanical equipment intelligent control systems. [0004] PCbase, which emerged in the 1980s, has always been at a disadvantage in the struggle against PLC, but since the beginning of this century, it has once again gained development opportunities and maintained its place in the field of mechanical equipment intelligent control systems...

AI Technical Summary

Problems solved by technology

[0008] 1. Using a single program, with the continuous improvement of equipment intelligent control requirements, the program is becoming more and more complex, and the program execution time is getting longer and longer

[0009] The complexity of the program leads to higher requirements for programmers and debuggers, and requires longer programming and debugging time. Any changes to the device functions by the user need to modify the main program. Different programmers respond to different users, different applications, and different periods of time. The repeated modification of the main program for different requirements makes the main program no longer classic and causes frequent failures;

[0010] Prolonged program execution makes programming more difficult (it is often necessary to distinguish interrupt tasks, fast tasks, main tasks, and auxiliary tasks), and even causes some functions that require fast response to be unreachable

[0011] 2. The use of parallel bus and frame structure cannot realize a complete distributed system. The modules are relatively concentrated, occupy a relatively large space, and require more and longer wiring

[0012] 3. Programs written by users themselves require users to have strong technical strength. Insufficient design capabilities of users, especially the lack of safety design concepts (the phenomenon of insufficient safety design concepts in grass-roots enterprises in my country is common) may cause frequent equipment failures Even various accidents caused by equipment failure

[0013] 4. The intelligentization of mechanical equipment requires more and more cooperation between the control system and the motor drive system. The current solution is mainly to configure the process card in the motor drive, improve the application macro software in the motor drive, and even allow users to write PLC Write the motor driver application program by yourself like a program. These methods cannot fully meet the user's needs for a high degree of integration between the driver and the controller. The gap between the control system and the motor driver has become an obstacle to the intelligentization of mechanical equipment.

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