IS220PTCCH1A GE

GE IS220PTCCH2A
GE IS220PTURH1A
GE IS220PVIBH1A
GE IS220UCSAH1A
GE IS230PCAAH1A

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Description

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,转入用户程序执行和输出刷新阶段,即使输入状态和数据发生变化,I/O映象区中的相应单元的状态和数据也不会改变。

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