DS200CDBAG1B GE 一手货源 国外直接进货

IS200VSVOH1B
IS200VTCCH1C
IS200VTCCH1C
IS200VTCCH1C
IS200VTURH2B
IS200VTURH2B
IS200VTURH2B

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描述

PLC有两种基本的工作模式,即运行(RUN)模式与停止(STOP)模式。在运行模式,PLC通过反复执行反映控制要求的用户程序来实现控制功能。为了使PLC的输出及时地响应随时可能变化的输入信号,用户程序不是只执行一次,而是不断地重复执行,直至PLC停机或切换到STOP工作模式。

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