毕业论文：基于PLC的给水控制系统设计01.doc

摘 要 本论文以某小区供水系统的改造为背景，根据供水系统的特性和实际情况的要求，以松下FP0-T32CT作为主控制器、组态软件KingView作为监控平台对小区原有的继电器逻辑控制系统进行更新设计，采用松下公司提供的FPWIN GR软件对PLC进行程序的编制与调试。该系统可以对供水系统的压力、液位等过程参数进行在线检测，实现供水过程的全自动控制，满足居民用水的需要。 本论文研究的主要内容包括:基于PLC自来水控制系统整体方案的设计、PLC控制系统原理、重点探讨PLC控制系统硬件、软件的设计方法，综合对比经验设计法、逻辑设计法、时序图设计法和顺序控制设计法，对PLC在实际现场控制过程中经常遇到的一些实际问题，如:电源干扰问题、扩展I/O点数和系统连锁问题等，提出了具体解决方案。 本论文是基于该工程项目的电气控制系统设计与实现展开的，采用可编程控制器PLC，完成了整个电气控制系统的软硬件的设计，基本达到了预期的目标，实现了小区供水的自动化。 关键词 PLC；供水系统；自动控制 Abstract In this paper a district water supply system transformation as the background, according to the characteristics of the water supply system and actual situation, at the request of the panasonic FP0-T32CT as the main controller, configuration software as a platform to the village KingView monitoring of the original relay update logic control system design, the panasonic company FPWIN GR software to PLC for programming and debugging. The system can for the water supply system pressure, the liquid level and process parameters of on-line inspection, realize the automatic control process of water supply, meet residents use the need of water. This research include: tap water control system based on PLC of the overall program design, PLC control system principle, discusses the PLC control system hardware and software design method, integrated comparative experience design method, the logical design method, the timing diagram design method and sequence control design method, the PLC in actual control process often meet with some actual problems, such as: power interference problems, expand the I/O points and chain system, puts forward specific solutions. This paper is based on the engineering project of the electrical control system design and realization to launch, and by using the programmable controller PLC, has completed the electrical control system of the hardware and software design, basic achieve the expected goal to realize the automation of water supply area. Key word PLC; Water supply system; Automa