JOKABSAFETYJSHD4P ABB

ABB DCS800-S02-0075-04
ABB A02040
ABB A6134A031IDAOAAS/3K240000004812/40-320ML/MIN/AIR/45
ABB DN50 COPA-XE-DE43F
ABB DE43F/031135 DN125,PN16

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Description

自动重复执行程序扫描和I/O扫描,即输入采样、用户程序执行和输出刷新三个阶段。完成上述三个阶段称作一个扫描周期。在输入采样阶段,PLC以扫描方式依次地读入所有输入状态和数据,并将它们存入I/O映象区中相应的单元内,输入采样结束后


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