榆林学院本科毕业设计(论文)摘要本设计基于西门子S7-200PLC编程,设计了花样喷泉系统。花样喷泉控制系统的主要任务就是改变喷泉的喷水样式,以达到有规律的改变喷泉喷水样式的目的。按下启动按钮,喷泉装置开始工作,按下停止按钮,喷泉控制装置停止工作。喷泉工作方式由花样选择开关和单步∕连续开关决定。当单步∕连续开关选择单步时,喷泉只能按照花样选择开关设定的方式,运行一个循环;当单步∕连续开关选择连续时,喷泉按照花样选择开关设定的方式,运行多个循环,直至按下停止按钮。花样循环方式选择开关用于选择喷泉的喷水花样,本文设计四种喷水花样循环。PLC控制系统体积小、功能强、可靠性高,且具有较大的灵活性和可扩展性的特点。用PLC花样喷泉控制系统,不但实现了自动转换花样喷泉的喷水样式,提高了系统的可靠性和安全性,而且,美化了我们的生活环境,使我们的生活环境更加安逸、舒适因此PLC控制系统具有一定的工程应用和推广价值。关键词:喷泉,PLC控制,花样喷泉系统IPLC控制的花样喷泉系统设计ABSTRACTThisdesignisbasedonSiemensS7-200PLCprogramming,designpatternsfountainsystem.Figurefountaincontrolsystem'smaintaskistochangethefountainofwaterstyle,toachieveachangeinthepurposeofthefountainwaterstyle.PresstheStartbutton,fountaindevicestartedworking,pressthestopbutton,fountaincontroldevicetostopworking.Fountainworksbypatternselectionswitchandsingle-step/continuousswitchingdecision.Whenstep/continuousswitchselectionstep,selectonlyinaccordancewithfigurefountainswitchissetinaway,runningaloop;whenstep/continuousswitchingselectcontinuoustime,fountaininaccordancewiththepatternselectionswitchissetinaway,runningseveralcycles,untilyoupressthestopbutton.Figurecyclewayselectorswitchisusedtoselectafountainofwaterspraypattern,thisarticledesignfourspraypattern.ThePLCcontrolsystemvolumeissmall,versatile,highreliability,andwithgreaterflexibilityandscalabilityfeatures.ThePLCfigurefountaincontrolsystem,notonlyforautomatedconversionfigurefountainwaterstyle,improvessystemreliabilityandsecurity,andbeautifiedourlivingenvironment,makeourlifemoreeasy,comfortableenvironment.Thusplccontrolsystemhascertainengineeringapplicationandextensionvalue.Key...