PLC毕业设计外文翻译基于模块化 S7200 培训设备的 PLC 开放实验设计Word格式.docx

PLC毕业设计外文翻译基于模块化 S7200 培训设备的 PLC 开放实验设计Word格式.docx

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togethernetworktechnologyisanadvancedautomaticcontroldevice.ThecurrentPLChasbecomethethreemajorbranchofmodernindustrialautomation 

Column（PLC,robotics,CAD/CAM）,widelyusedinvariousfieldsofautomationandcontrolsystems,varioustypesofenterprises 

Industryrequireacertainamountofpracticalexperiencewithsuchtalent. 

Thus,PLCapplicationtechnologyhasbecometheindustrialautomationtechnology 

relevantprofessionaltechnicalpersonnelanduniversitystudentstolearnimportantlessons. 

SiemensSIMATICS7-200seriesaresmallPLC,itshighpriceinthedomesticmarket 

largemarketshare,becauseofitsflexibleandpowerfulcommunicationfeaturesandotherspecialadvancedfeaturesareincreasingly 

themorewidelyusedinautomaticcontrolsystems[1]. 

SiemensAutomationandDrivesGroupiscurrentlyactivelycooperatewithcollegesanduniversities 

Siemenstobuildtheestablishmentoftrainingcenterforsmall-scaleautomation,QingdaoUniversityisoneofthem. 

Siemenstoprovidesimilartrainingcenter 

S7-200training-relatedequipmentandsoftwaredevelopment.Teacherstakeadvantageofthisfavorableexperimentalconditions,basedonthedesignofthesedevicestoopen 

.MadeanumberofpilotprojectsPLCopen,sothatschoolhassparecapacity,"

enough"

tofurtherstrengthenthePLCapplicationtechnologystudentlearning, 

Understandandoperatethemostadvancedautomationequipment,theinitialgraspofadvancedcontroltechnologiesofindustrialautomationandcontrolsystemdesigntechnology 

patients,improvetheirpracticalabilitytoachievetrainingobjectivesapplicabletalentstomeetcommunityneedsforsuchtechnicalpersonnel 

requirements.

1ModularS7-200trainingequipment 

PrincipleandApplicationofPLCtechnologytolearnandmasterthenecessaryhardwareandsoftwaretestplatformtosupport. 

Siemensautomaticinmyschool 

Groupsetupjointlywiththedriverofasmallautomatedtrainingcenters,equippedwith10setsoftrainingequipmentS7-200,diagramatright 

.Figure（paintedonsomeoftheexpansionmodule）below. 

Thedeviceismodularindesign,themainmoduleinadditiontosuperiorperformance,cost-effective 

.HigherCPU224XPhost,butalsocomeswithtextdisplayTD400C,withspecialPT100temperaturetransmitter, 

Heaters,fans,andotherphysicalcontrolobject,basicliteracytrainingtoachievemostofexperiments,peoplecouldbeconducted. 

Siemensproductsfortherichfunctionmodule,considerthecostandotherfactors,withacertainnumberoffunctionalmodules,including 

EM231RTDtemperaturemeasurementmodule,EM253positioncontrolmodule,EM241Modemcommunicationmodule,CP243-1Ethernetcommunicationmodule,EM277Prefabs-DPmodule,SPseriesweighing 

SiwarexMSweighingmodulesensorsandextensionofsixmodules,connectedbybusexpansionunittoachievethefunctionofswitch-freewiring,training,experimentscanbeusedinterchangeably. 

AlsocomeswithHMI（HumanMachine

Interface）devicesTP177B,OP177B,MP277,etc.Atotalof10touch-screens,hangingintheequipmentrackcanalsobesupportedbyaseparateoperation. 

UsingthestandardpackageofequipmentS7-300railcardinstalled,sothatreliableandstablemoduleisinstalled,andwhennecessaryS7-300modulescanbeveryeasytoexperimentwiththeadditionofanymoduleS7-300,theS7-200andS7-300 

theinstallationofacommonplatform. 

Thisexperimentalequipmentforteaching,trainingandscientificresearchhasprovidedteachers,goodhardwareconditions.

2PLCopentoexperimentaldesign 

PLCcourseseachsemesterduetoclassalot,bythelaboratoryequipment,spaceandcurriculumhoursrestrictions,generally 

PrincipleandApplicationofPLCprogramscreatedintheexperimentmainlysupportingthebasicinstructiontopractice,sequentialcontrol,asimpledigital 

Volumecontrolsystemdesign,suchasthemarqueedesign,automaticroundtriptransportationmovementcontrol,intersectiontrafficlightsmodelcontrol, 

Three-tiermodelofcontroloftheelevator,thepartoftheexperimentcontentisbased,compulsory. 

FortheS7-200specialhigh-levelutilityfunction 

Energy-richextensionmoduleandfieldcommunicationfunctionwidelyusedimplementationisrarelyinvolved. 

Takingintoaccountstudents 

Abilitytoacceptdifferencesandexperimentalconditions,thispartoftheexperimentforthecontentbestsuitedtoopenexperiment[2] 

Thatis,relativetoteachers 

Laboratoryequipmentandrelatedinformation,madeexperimentalmissionrequirements,preparedbythestudentstoselftestprogramtodeterminetheeffectiveefficiencymeasurementexperiment 

Ifthemethodofthinkingsothatstudentshavemoreroomtostimulatethestudentsenthusiasmandinitiative,abilityofstudentstoengineeringpractice, 

Abilitytoinnovate,analyzeandsolveproblemsAbilityofgreatimportance[3] 

. 

Therefore,theuseofexistingexperimentaldesign 

Equipment,andtakingintoaccountthestudentslearntomastertheknowledgestructure,designanddevelopmentofsomepilotprojectsopen.

2.1Themainmoduledesignbasedontheopeningexperiment 

Useofthemainmodule,inadditiontothecompletionofsomebasicPLCprogrammingexperiment,wecanalsoperformsomespecialfunctions[4] 

Experiment, 

AlsopracticedMicro/Winprogrammingenvironmentintegratedwithavarietyofprogrammingguide,are:

（1）ThemainmoduleincludesTD400C,itisahighlycost-effectivededicatedS7-200PLC'

snewgenerationoftext 

Display,isasimpleman-machineinterfacedevice,nospecialconfigurationofHMIsoftware,theuseofMicro/WINV4.0SP4to 

OntheversionofChineselanguageinterfaceintheconfigurationwizardtoTD[5] 

TheconfigurationopeninginTD400Cexperiments,showtheuserthroughtheconfiguration 

Menu,thealarmmenu,andinteractwithS7-200CPU,CPUstorageareafordataaccessandediting,enablingsmall 

Typeofhuman-computerinteractionfunctionwiththecontrolsystem,suchasbasicexperimentswithautomaticroundtriptransportationcontrolprogramcanberealized 

Throughthecontrolpaneltocontrolthecarmotionstate,andinpositiontoreachbothendsofthealarmscreenlimit,while 

TD400Cmodifythecartostayattheendsoftime,sothattheexperimentaleffectismorerichandvivid,butalsotoenablestudentstounderstandthemaster 

Productionsiteusingtheactualcontrolequipment. 

（2）High-speedcounter,high-speedoutput,internalandexternalinterruptsandotherusefulspecialfeatures,throughanopenexperiment 

Learnandmaster,suchasthefirsthigh-speedoutputbyPTO（pulsetrain）output,andachievethehigh-speedcounter 

High-speedoutputofthePTOHSC0count,theinterruptfunctionbyrepeatedHSC0count,aprogramming 

AdjustthePWM（pulsewidthmodulation）high-speedoutput,thetimerinterrupttoimplementasecondcounter,andthecurrentcountvalue, 

PWMoutputdutycycleandotherrelatedcontentdisplayedontheTD400C. 

（3）ThemainmodulewiththePT100temperaturetransmitterwillbeconvertedfrom0to100degreesC0~10Vanaloginputreceivedas 

IntotheCPU,theheater,fanandotherphysicalcontrolobjectsconnectedtothedigitaloutputontheCPUcanberealizedonanalog 

Datatransformation,manualPIDcontrolprogramming,usingtheconfigurationwizardtocompletethePID,PIDparameterself-tuningfunctionoftheexperiment,sothat 

StudentsdeeplyunderstandandmastertheindustrialfieldofanalogPIDcontrolknowledgeandimplementation.

（4）TwoS7-200seriesPLCviaRS232communicationcable,youcanusethePPIprotocoltoforma 

Singlemasterstationcommunicationnetwork,canbePPIpointtopointcommunicationexperiment,toachievedataexchangebetweenthetwoPLC,suchasthe 

I0.0~I0.7mastermaptotheslavestateoftheQ0.0~Q0.7,fromthestationI0.0~I0.7ofthestatemaptothemainstation 

Q0.0~Q0.7,thenetworkwillallowstudentstoexperiencethesimplewizardtousereadingandwritinginstruction,andextendedthroughtheformationofPPInetworkscanbeimplemented 

Controlfunctionsaremorecomplex. 

（5）S7-200CPU'

scommunicationsportsupportsafree-portcommunicationmode;

youcanuseuser-definedcommunicationprotocolimplementation 

nowwiththecomputerorotherdevicewithaserialcommunicationinterfaceforcommunication. 

Here,simpleandeasyforstudentstouseVisual 

Basic（VB）languagePCprogramtorealizeS7-200CPUPCwiththefreeportcommunicationmodebetweentheexperimental[6], 

CompletedbythePLCfieldswitching,analogcontrolofprocessing,thehostcomputerrealizationoftheprocessparametersofthemonitoring,analysis, 

Statisticsandrevision,toprovideagoodinterfaceforeasymonitoring.

2.2CP243-1Ethernetmodulebasedontheopendesignofexperiments 

SiemensSIMATICNETIndustrialEthernetisanopencommunicationsystemontop,canmanageandcontrolnetwork 

Integration,andevencanbeintegratedintotheInternet,forremotecontrolandprovidestheconditionsforglobalnetworking. 

S7-200PLCwitha 

CP243-1EthernetmoduleorInternetCP243-1ITmoduleS7-200canbeconnectedtotheEthernet. 

Inthis,selectare 

CP243-1expansionmodulesomeexperiments,throughtheMicro/WINconfigurationoftheEthernetWizardtocompletethesimplemodel 

Blockconfiguration. 

ComputerbyinstallingtheEthernetcardandMicro/WIN,canberealizedviaEthernetS7-200CPU 

Remoteprogramming,configurationanddiagnostics. 

Inaddition,thetwoareequippedwithCP243-1moduleS7-200PLC,throughthesoftwareprogramming 

anddownloadtheconf