《北科大pl》PPT课件

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1、1ProgrammableControllerTheoryandItsApplication可编程控制器及应用(双语)2maincontentsofthecourse课程内容本课程以西门子S7-300/400大中型可编程控制器（PLC）为背景机型，重点介绍可编程控制器(ProgrammableController)的工作原理（theory）、系统硬件（hardware）、指令系统（InstructionSet）、编程软件（ProgrammingSoftware）、设计(Design)方法等。3Aboutthiscourse共36学时，课堂讲授30学时，实验6学

2、时课程成绩=期末试卷成绩(60%)+实验成绩(20%)+平时作业成绩(20%)期末试卷：编程题，基本操作规范、基本概念实验成绩：考核3-5个操作（认真做实验）平时作业成绩：内容是否符合要求，格式是否规范4L.A.Bryan，L.A.Bryan.ProgrammableControllersTheoryandImplementation.2ndedition.AnIndustrialTextCompanyPublication，Atlanta•Georgia•USA李希胜舒雄鹰编，校内讲义《ProgrammableControllerTheoryandItsAp

3、plication》李希胜孙昌国舒雄鹰编著，中国计量出版社《可编程控制器原理及应用》廖常初主编机械工业出版社《S7-300/400PLC应用技术》网站：西门子（中国）自动化与驱动集团下载中心http://www.ad.siemens.com.cn/download/西门子S7300中文手册，英文手册Reference参考书目51.1Definition1.2Controlsystemoverview1.3Thebenefitofprogrammablecontrol1.4FundamentalstructureofPLC1.5PLCProductApplica

4、tionRanges1.6LadderDiagramsAndThePLC1Introduction61.1DefinitionWhatisaprogrammablecontroller?Programmablecontrollers,alsocalledprogrammablelogiccontrollersorPLCs,aresolid-statemembersofthecomputerfamily,usingintegratedcircuitsinsteadofelectromechanicaldevicestoimplementcontrolfuncti

5、ons.Theyarecapableofstoringinstructions,suchassequencing,timing,counting,arithmetic,datamanipulation,andcommunication,tocontrolindustrialmachinesandprocesses.7amicroprocessor-basedindustrialcontroller,thefunctionsofwhicharedeterminedbyastoredprogram.81-2AHistoricalBackgroundIn1968GM

6、Hydramatic(theautomatictransmissiondivisionofGeneralMotors)issuedarequestforproposalforanelectronicreplacementforhard-wiredrelaysystems.Theirprimarygoalwastoeliminatethehighcostsassociatedwithinflexible,relay-controlledsystems.Someoftheinitialspecificationsincludedthefollowing:•Then

7、ewcontrolsystemhadtobepricecompetitivewiththeuseofrelaysystems.•Thesystemhadtobecapableofsustaininganindustrialenvironment.9•Theinputandoutputinterfaceshadtobeeasilyreplaceable.•Thecontrollerhadtobedesignedinmodularform,sothatsubassembliescouldberemovedeasilyforreplacementorrepair.•

8、Thecontrolsystemnee