DS215GASCG4AZZ01A GE

IS215VPROH1B GE
IS200PMCIH1ABA GE
IS200VAOCH1CBB GE
IS200VCRCH1BBC GE
IS200ECTBC1A GE
IS200TBAIH1B GE
IS215UCCCM04A GE
IS200DSPXH2BEB GE
IS200TTURH1BED GE

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描述

在输入处理阶段,PLC把所有外部输入电路的接通,断开状态读入输入映像寄存器。外部输入电路接通时,对应的输入映像寄存器为l状态,梯形图中对应的输入继电器的常开触点接通,常闭触点断开。外部输入触点电路断开时,对应的输入映像寄存器为0状态,梯形图中对应的输入继电器的常开触点断开,常闭触点接通。
某一编程元件对应的映像寄存器为l状态时,称该编程元件为ON,映像寄存器为0状态时,称该编程元件为OFF。
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