MYME117A MOTOROLA 质保一年 售后无忧

DS200TCCBG3A
DS200TCCBG8BED
DS200TCCAG2A
DS200TCCAG2AHB
DS200TCEAG2B
DS200TCEAG1A
531X303MCPARG1
DS200TCQAG2B
DS200AAHAH1AD

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描述

当处于运行工作模式时,PLC要进行从内部处理、通信服务、输入处理、程序处理、输出处理,然后按上述过程循环扫描工作。

在运行模式下,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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