The pump monitoring system is mainly composed by three parts: the PLC system, the HMI system and the host computer system.
该系统主要由可编程控制器系统,人机交互系统,上位机系统三部分组成。
参考来源 - 城市隧道监控系统中水泵监控系统的设计与实现·2,447,543篇论文数据，部分数据来源于NoteExpress
系统的总体设计包括两部分：上位机系统和下位机系统。
The design of system contains two parts of master system and slave system.
上位机系统实现对下位机的管理及对综合信息进行加工、处理。
The upper order computer system manages lower order computers and processes synthetic information.
该应用系统是由上位机系统和下位机系统组成的集散控制系统。
The application system consists of upper order computer system and lower order computer system, it is both a concentrating and a dispersing control system.
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