EPA组态方法研究及程序实现

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1、大连理工大学硕士学位论文EPA组态方法研究及程序实现姓名：叶哲琦申请学位级别：硕士专业：控制理论与控制工程指导教师：仲崇权20040301AbstractMuchattentioniSpayedtoIndustryEthemetasitisthenextgenerationcontrolnetworktechnology．EPAisanindustryEthemetspecificationdefinedbyourcountry。ItisveryimportanttostudytheconfigurationsoftwareofE

2、PAsystem．Thesystemmodel．thetopologystructureofnetworkandthecommunicationmodelofEPAarestudiedandEPAconfigurationmethodiSdiscussed．ThemostimportantmatterofEPAconfigurationistheconfigurationofapplicationofdistributedcontrolsystem．Therearethreekeyiterns，EPAfunctionblock，E

3、PArealtimecommunicationspecificationandEPAdevicedescriptionlanguage．ThefunctionblocksareinaccordalicewithIEC61499andIEC61804spcification．theyaredistributedinfielddevices．TheEPAfunctionblockiSthebasicelementofdistributedcontrolnetwork。EPArealtimecommunicationspecificat

4、ioniSusedforfunctionblockstocommunicatewitheachother．ItiSbasicqualificationtodeviceconnection．TheXDDL(ExtensibleDeviceDescriptionLanguage)basedonXMLisusedtOdevicecooperation．DesignandimplementtheEPAconfigurationsoftwarewhichisnamedEPAConfigurator．EPAConfiguratorisavis

5、ualandgraphicconfigurationsoftwareanditisdevelopedbyVisualC十+6．O．ItiSusedtoconfigurateallsoftwareandhardwareresourcesofthefieldnetworkandunitealltoonetocooperatetoachievecontrolpurpose．EPAConfiguratorisdividedintoseveralmodulesandeachmoduleiSdiscussed．Discussthesoftwa

6、redevelopmentoftheindustryethemetI／Odevicewhichusestherabbit2000asitsmicroprocessor．Thesoftwaredevelopmentoffielddeviceincludestwoparts，theprogramdesigningandthedevelopmentofdevicedescriptionfile．ConfigurateindustryEthernetI／OdevicesbyEPAConfigurator,constructingtwoap

7、plications．thePIDcontrolloopandDIDOcontrolnetwork．Thetwoapplicationsbclthachievetheircontrolpurposes．ItisconfirmedthattheEPAsystemiSavailablebythediscussingoftheaboveandtheapplications．ItalsoshowsthatEPAConfigruatorisafriendlyandeasyconfigurationsoftware．IthaSmuchsign

8、ificanceinpractice．KeyWords：IndustryEthernet；EPA；Configurationsoftware；Functionblock；Communicationspecification；Devicedescri