IS200ERIOH1A GE 结构化语言划分

IS200EROCH1A
IS200ERRBG1A
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IS200ESYSH3A
IS200EXAMG1B
IS200HSLAH2A
IS200JPDBG1A
IS200JPDBG1ABB
IS200JPDCG1A
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IS200JPDEG1AAA
IS200JPDFG1A(DD)
IS200JPDGH1A
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IS200JPDHG1AAA
IS200JPDLG1A

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Description

可编程序控制器的程序要简明且可读用户软件的编写是“平铺直叙”,用户软件可看成是一个有序的“黑盒子”系列,每个“黑盒子”按照结构化语言划分,可分为几种典型的语句。每个语句方式、手法可能十分单调,但一定要明确。在设计与编写这些语句时,若使用不易推理的逻辑关系太

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