基于PLC的控制系统在污水处理中的应用

基于PLC的控制系统在污水处理中的应用(中文3200字,英文2700字)
介绍了以PLC为核心的分布式控制系统在污水处理系统中的应用。具体叙述了控制系统的结构、任务分配及实现、控制方式和程序设计思想.控制系统采用集中监测管理、分散控制的方式，上位机负责现场设备的远程控制和监视，软件采用Intouch7. 0编制。PLC本地站负责对具体的工艺、设备、主要被控参数进行控制及采集各种运行数据，程序设计采用具有在线跟踪和离线仿真功能的Concept 2. 2XL软件。上位机与PLC之间采用组网简单、运行速度快、通信稳定性强的MB+网 。整个控制系统成功地解决了PLC在污水处理中的自动化控制问题，提高了污水处理设备运行效率和管理水平。
译文：
Application of control system on the base of PLC in sewage treatment
The paper introduces a distributed control system of sewage treatment, and the core of the  system is PLC. The structure of the control system, the assignment and implementation of the  tasks, the control scheme and the design concept of program are expounded. The way of central monitoring management and dispersing control is used by the control system; the long一distance control and monitoring of field equipment are uncharged of the upper computer; the software program of designs uses Intouch7. 0. The specific technology, equipment, the controlling of main parameter and several running data are uncharged of the PLC stations, and the software program  of designs uses Concept 2. 2XL with online tracking and outline simulating. MB+ net is adopted by the communication between the upper computer and the PLC stations, with its simply  building net, quickly running and stable communication. The automatic control of PLC has been successfully completed in sewage treatment, which has improved the operation efficiency and  management level of sewage treatment equipment