基于plc系统的全自动洗衣机的设计毕业论文--153496486【必威体育精装版】.doc

摘 要 该毕业设计介绍了可编程序控制器（PLC）和PLC控制系统的基本知识，包括PLC的定义、特点、分类、技术指标、基本结构、工作原理、硬件知识及PLC控制系统等相关知识。可编程控制器是以计算机技术为核心的通用自动化控制装置，它的功能性强，可靠性高，编程简单，使用方便，体积小巧。采用S7-200系列的PLC，设计了相应的系统软件，结合相应的硬件系统，设计了一个简单的全自动洗衣机控制系统，实现了洗衣机由进水，洗涤，排水，脱水，报警到自动停机的循环过程。 全自动洗衣机通过了可编程序控制器来实现洗涤过程，满足了对洗衣机运行的智能控制Abstract This graduation design introduces the programmable logic controller （PLC ） and the b knowledge?of? its control system, including the definition , characteristics, classifying, indicators ， the basic structure and working mechanism, hardware knowledge and the relevance to PLC control systems.PLC is a general automation control device which based on PLC core of computer. It has a compact sizewith a strong functionality , high reliability, simple programming ,which is easily used. The PLC ,which belong toMitsubishis ,designs a simple auomatic washing machine,with a combinition corresponding software and hardware system,so it successfully realizes a washing cycle in water. ?The automatic washer,with the logical controlling successfully complete washing,which saves ?time and labour as well as improves the technology. This design plays anactivize role in improving students practicing and understanding of ?the theories concerned. ? With the development of economy as well as improvement of science and technology ,it is trend to realize the full automation.Automatic washing machine of great convenience to peoples lives.In our country, only the washing machine has a stable price in the electrical home? , after a few years of steady development , domestic the washing machine? with? the advanced level of the world?either in quality or function synchronize. Therefore, i believe that the design is embody more advantage about the full automatic washing machine. It must have a broad market . Key words：PLC，control system，which is energy-efficient 目 录 第1章 绪 论 1 1.1 本设计的目的与意义和设计内容 1 1.1.1 本设计的目的与意义 1 1.1.2 本设计的设计内容 2 1.2 全自动洗衣机的应用现状 2 第2章 可编程控制器的概述 4 2.1 可编程控制器的定义及分类 4 2.2 可编程控制器的结构及工作原理 4 2.3 可编程控制器的主要技术指标 5 第