I摘要随着社会经济的发展和科学技术水平的不断提高，家用电器的全面自动化已成为必然的发展趋势。全自动洗衣机的产生极大的方便了人们的生活。本文主要介绍了利用西门子S7-200系列的PLC与组态软件一起设计全自动洗衣机的系统设计。充分利用PLC的可靠性高、耗电量少、寿命时间长、运行速度快等一系列优点，进一步提高全自动洗衣机的功能和性能。为了能更直观的显示洗衣机整个洗衣的自动控制过程，通过运用组态王建立了一个全自动洗衣机的设计画面。主要工作是：(1)流程图及梯形图的绘制(2)梯形图的仿真(3)全自动洗衣机的界面设计(4)组态王与PLC的连接与调试最终可以通过“组态王”这个软件与西门子PLC的连接，在“组态王”这个软件设计的界面上可以清楚的看到洗衣机自动控制的整个过程。关键词：西门子PLC；组态王；全自动洗衣机IIABSTRACTWiththedevelopmentofsocialeconomyandtheimprovementofscienceandtechnology,homeapplianceautomationhasbecometheinevitabletrendofdevelopment.Theautomaticwashingmachineisagreatconvenienceforpeople'slife.ThispaperintroducestheuseofSIEMENSS7-200seriesofProgrammableLogicController（PLC）andconfigurationsoftwaretodesignthesystemofautomaticwashingmachine.Makingfulluseofhighreliability,lowpowerconsumption,longlife,fastrunningspeedandaseriesofadvantagesofPLC,tofurtherimprovethefunctionandperformanceoftheautomaticwashingmachine.Todisplaytheautomaticcontrolprocessoftheentirelaundrycanbemoreintuitive,theuseofKingviewtodesignthepictureoftheautomaticwashingmachine.Themainworkis:1)Drawingofflowchartandladderdiagram2)simulationofladderdiagram3)theinterfacedesignoftheautomaticwashingmachine4)connectionanddebuggingofKingviewandPLCFinally,throughtheconnectionofSiemensPLCandKingviewsoftware,theinterfaceofKingviewcanclearlyseewashingmachineautomaticcontrolofthewholeprocess.Keywords：SiemensPLC;Kingview;TheautomaticwashingmachineIII目录第一章绪论..................................................................................................11.1全自动洗衣机的研究背景.........................................11.2全自动洗衣机的研究目的与意义...................................11.3洗衣机发展历程及前景...........................................11.4章节安排.......................................................2第二章总体设计..........................................................................................42.1全自动洗衣机的工作原理.........................................42.2全自动洗衣机的控制要求.........................................5第三章硬件设计..........................................................................................63.1可编程控制器（PLC）............................................63.1.1PLC的基本概念............................................63.1.2PLC的组成................................................63.1.3PLC的优点及特点..........................................73.1.4PLC的工作原理............................................83.1.5PLC的分类................................................93.2PLC的选型.....................................................103.2.1I/O点数.................................................103.2.2I/O储存器的容量.........................................113.2.3CPU的选择...............................................113.3I/O地址分配...................................................113.3.1开关量输入端的分配......................................113.3.2开关量输出端的分配......................................133.3.3定时器的分配............................................133....
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