它由分布式网络 (INFI NET) ,过程控制单元 (PCU) ,操作员接口站 (WSA) ,工程师工作站 (EWS)以及计算机接口单元 (CIU)等组成。
It is made up of distributing network (INFI NET), process control unit(PCU), operator interface station (WSA), engineering work station (EWS) and computer interface unit (CIU).
过程控制中,大量控制系统是由基本PID控制单元组成。
Most of real industrial processes are controlled by PID controllers.
新型照明控制系统采用分层分布式结构:以PLC构成系统的底层控制单元,完成生产过程的数据采集和过程控制;
The framework of the new illumination system is layered and distributed: as the bottom controller in system, PLC collects the data and controls the process;
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