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洛阳理工学院毕业设计（论文）I基于PLC的多种液体混合控制系统设计摘要在上世纪60年代末PLC的出现，便以其独特的优点得到迅速地发展和普及，并在冶金、机械、纺织、轻工、化工等众多行业中取代了传统的继电器控制。掌握可编程序控制器的工作原理，具备设计、调试和维护可编程序控制器控制系统的能力，已经成为现代工业对电气技术人员和相关工科学生的基本要求。将PLC用于多种液体混合控制系统，对于学习和在工业上的应用，尤其是在化工工业上的应用显得非常的重要。设计以三种液体混合控制系统为例，根据设计要求对其硬件系统组成、软件系统设计和整个系统的整合调试等有关设计及制作过程做简单的介绍和说明，以阐述PLC在多种液体混合控制系统中应用。同时，设计采用西门子（SIEMENS）公司的S7-200系列机型进行了控制系统的PLC程序设计，并且利用组态王软件对系统自动运行、运行画面同步显示成功地进行了画面组态。关键词：多种液体，混合装置，自动控制，组态洛阳理工学院毕业设计（论文）IIPLC-BASEDAVARIETYOFLIQUIDMIXEDCONTROLSYSTEMDESIGNABSTRACTInthe60'sattheendofthelastcenturytheemergenceofPLC,theadvantagesofitsuniquerapiddevelopmentandpopularizationof,andinmetallurgy,machinery,textile,lightindustry,chemicalindustryandmanyotherindustriestoreplacethetraditionalElectricalrelaycontrol.PLCmastertheworkingprinciple,withthedesign,commissioningandmaintenanceofPLCcontrolsystems,hasbecomeamodernindustrialelectricaltechniciansandengineeringstudentsthebasicrequirements.WillbeusedPLConavarietyofliquidmixedcontrolsystem,forthestudyandapplicationinindustry,especiallyinthechemicalindustryitisveryimportantapplications.Thedesigntakethreekindofliquidsmixedcontrolsystemasanexample,designrequirementsinaccordancewithitshardwaresystems,softwaresystemdesignanddebugtheentiresystem,suchastheintegrationofthedesignandproductionprocessofdoingabriefintroductionanddescription.ToexpositthatPLCappliesinavarietyofliquidmixedcontrolsystem.Atthesametime,thedesignoftheuseofSiemensS7-200seriesmodelsforthePLCcontrolsystemprogramming,andusethesoftwareonthesystemKingviewrunautomatically,runthescreensimultaneouslyshowthesuccessfulconductoftheconfigurationscreen.KEYWORDS:Avarietyofliquid,Mixeddevices,Automaticcontrol,Configuration洛阳理工学院毕业设计（论文）III目录摘要·················································································IABSTRACT········································································II第一章概述······································································11.1课题内容··································································11.1.1选题的目的························································11.1.2课题设计的意义··················································11.1.3课题设计方案·····················································11.2PLC的简介·······························································11.2.1PLC的特点·······················································21.2.2西门子S7-200PLC·············································2第二章系统硬件设计····························································32.1系统控制要求····························································32.2硬件设计··································································42.2.1PLC机型的选择·················································42.2.2混合装置的基本组成············································52.2.3液体混合装置运行流程分析···································52.2.4液体混合装置电气原理图······································62.2.5PLCI/O点分配及外部硬件接线图···························7第三章系统软件程序设计······················································93.1PLC的编程要求和编程方法···········································93.1.1编程要求···························································93.1.2编程方法·························································103.2STEP7-Micro/WIN32编程软件介绍·······························103.2.1STEP7-Micro/WIN32编程软件·····························103.2.2STEP7-Micro/WIN32编程软件的主要功能···············113.3液体混合系统运行流程图···········································133.4PLC程序设计··························································153.4.1内部继电器说明················································153.4.2梯形图····························································15洛阳理工学院毕业设计（论文）IV3.4.3指令表····························································18第四章组态软件的应用·······················································214.1组态软件的介绍·······················································214.1.1组态软件的发展················································214.1.2组态软件的功能特点发展方向······························224.2组态王软件·····························································254.2.1组态王6.53软件简介·········································254.2.2组态王6.53在设计中的应用································28第五章系统调试································································345.1连接设置································································345.2运行调试································································35总结···············································································39辞谢···············································································40参考文献··········································································41外文资料译文····································································42洛阳理工学院毕业设计（论文）1第一章概述1.1课题内容1.1.1选题的目的借助实验室设备熟悉工业生产中PLC的应用，进一步了解所学可编程控制器的型号和原理，熟悉其编程方式。而多种液体混合装置的控制更常见于工业生产中，尤其见于化学化工业中，便于学有所用。1.1.2课题设计的意义用PLC进行开关量控制的实例很多，在冶金、机械、纺织、轻工、化工、铁路等行业几乎都需用到它，如机床电控、食品加工、印刷机械、电梯、自动化仓库、生产流水线等方面的逻辑控制，都广泛应用PLC来取代传统的继电器控制。本次设计是将PLC用于多种液体混合物装置的控制，对学习与实用是很好的结合。1.1.3课题设计方案采用S7-200系列机型进行程序设计，利用组态王软件对自动装料运行进行画面组态。1.2PLC的简介在工业生产过程中，大量的开关量顺序控制，它按照逻辑条件进行顺序动作