3BHB005243R0105 ABB 输入映像存储器

ABB DSMB-02C
ABB DSMB-01C
ABB DSMB-01C
ABB DSMB-01C
ABB DSMB-02C
ABB DSMB-02C
ABB V18345-1010521001
ABB V18345-1010521001
ABB V18345-1010521001
ABB V18345-1010521001
ABB V18345-1010221001
ABB V18345-1010521001
ABB V18345-1010121001
ABB TZIDC-V18345-1010221001
ABB V18345-1010221001
ABB V18345-1010521001
ABB V18345-1010221001

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Description

LC执行程序的过程分为三个阶段,即输入采样阶段、程序执行阶段、输出刷新阶段,PLC的扫描工作过程:输入采样阶段。在这一阶段中,PLC以扫描方式读入所有输入端子上的输入信号,并将各输入状态存入对应的输入映像寄存器中。此时,输入映像寄存器被刷断。在程序执行阶段和输出刷新阶段中,输入映像存储器与外界隔离,其内容保持不变

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