IS215UCVEM01A GE

GE IS215UCVGM06A
GE IS215VAMBH1A
GE IS215VCMIH1B
GE IS215VCMIH2B
GE IS215VCMIH2BZZ01A

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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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