Construction of cache stack FIFO in different application scenarios for PLC data operation series (detailed algorithm explanation)

  This article and everyone's simple talk stack FIFO（ First in, first out ）、 Combined with the actual application scenarios in the industrial field , Understand the data access timing constraints of the cache stack step by step . Master the method of stack operation data . It is not necessary to program with the system's own FIFO Instructions or function blocks , manufacturer PLC Of FIFO Instructions are actually very inflexible , All given are general stack instruction libraries , After mastering the method, we can freely and flexibly construct different stacks 、 Cache stack scheme .

  There is also a blog post on stack and shift instructions , For the same project Different scenarios require , The implementation idea is slightly different , You can learn the idea of stack by comparing .

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