Programmable logic controller is short for PLC. It is a special purpose industry control machine, that kernel is single chip microcomputer.
可编程逻辑控制器简称为PLC，它是以单片机为核心的工业控制专用机。
This method is the logic design base of programmable logic control system or single-microcomputer control system.
此方法是可编程序控制系统或单片机控制系统的逻辑线路设计基础。
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