IC695PSA040 GE

287A7267P001
287A7267P002
298A7661P003
298A7767P001
298A8224P003
300180-50-00
302A1537P001
302A1537P009
302A4010P002
302A4456G001
302A7009P010 DCS

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描述

顺序功能图编程是一种图形化的编程方法,亦称功能图。它的编程方式采用画工艺流程图的方法编程,只要在每个工艺方框的输入和输出端,标上特定的符号即可。采用顺序功能图编程,可以使具有并发、选择等复杂结构的系统控制程序大为简化。许多PLC都提供了用于SFC编程的指令,它是一种效果显著、深受欢迎的编程语言,目前国际电工委员会(IEC)也正在实施并发展这种语言的编程标准。

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