Traditional Culture Encyclopedia - Traditional stories - Comparison between PLC and other industrial controls
Comparison between PLC and other industrial controls
Here is a simple statement:
1, the cost, the price of single chip microcomputer is low, the price of computer is high, and the price of PLC is high.
2. The complexity of the system. If it is a large-scale system, the design of single chip microcomputer will be very complicated, involving a lot of software and hardware design, and the workload is huge; Computers need professional knowledge of computer software and hardware; PLC has inherent advantages in this respect, such as easy-to-understand program, simple circuit, modular function, easy maintenance and operation, and obvious advantages in electrical stability.
3, the response level, the computer's response speed is the fastest, so the computer for rapid industrial control, such as circuit board high-speed welding equipment; Single chip microcomputer is second; When it comes to response level, PLC is not a strong point, and its performance on some high-speed input and output devices is not satisfactory.
Probably think of these, industrial control choose what as the control means, specific analysis, don't stick to it, now the situation in China, single chip microcomputer is still very market, in today's increasingly concentrated industrial production, PLC came from behind and was widely used by a large number of manufacturers. In many cases, computers, PLC, and single-chip microcomputer jointly control and perform their respective duties.
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