基于DeviceNet的数据通信系统设计

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1、大连海事大学硕士学位论文基于DeviceNet的数据通信系统设计姓名：熊伟申请学位级别：硕士专业：检测技术与自动化装置（计算机网络控制）指导教师：赵永生20100601英文摘要ABSTRACTFieldbusisanadvancedindustrialcontroltechnology,theinformationexch-angeproblembetweenthetraditionalcontrolsystemequipmentandbetweensy-stemsandoutsideworldisresolved．Fieldbusisnotonlyanopencommunic

2、ati-0118network，butalsoafullydistributedcontrolsystem，inthefieldautomationequipmentsarecormectedtothenetworkasanetworknodesystem，thenthein-tegratedautomationsystemwithmanagementandcontrolintegrationiseonstitu—tTheemergenceanddevelopmentoffieldbusenhancedcommunicationsCa-pabilitiesofdatacommu

3、nicationsystem，strengthenedtheconnectionbetweenter-minalequipment．DeviceNetisabasedonCANtheintroductionoflow-costCO-mmunicationsconnection,akindoflow—standardnetworksystem．Providedtheinterchangeabilityofsimilarcomponents，andreducedthecostandtimeofins—tallationequipmentandcable．Toenabledataco

4、mmunicationsystemallowsdynamicconfigurationofcon—nectionsbetweendevicestoachieveinterchangeabilitybetweensimilarcompone—nts，andincraeseddevicediagnosticsfunction,combinedtheadvantagesofDevi-ceNet,selecteditasthedatacommunicationsystemsnetworksolution．Fortheslavedeviceoftheinputandoutputsigna

5、lsofthe(suchaso~5Vor4--20mAorswitchvolume)，itisnecessarytodevelopasgenericaspossibletheslavenodecontroller,SOthatsuchequipmentcomfortably，rapidaccesstoDeviceNetThesystemusedthemaster-slavestructure，themastermierocontrollerbase-don$3C2410microprocessorcore，theslaveusedtoAT89S52microcontroller

6、core．Themasterwasresponsiblefordataprocessingandtransmission,wimWO—rkstationsfordataexchange．Theslavewasresponsiblefordataacquisitionof英文摘要terminalequipmentandcontrolit’Soutput．MasterandslaveusedCANbusI>-ommunication,Based0nDeviceNetapplicationprotocolensuredthatdatacorn-municationnetworkshi

7、ghreliability,interoperability,communicationsfailureant-omaticidentificationandre00very,andmanyotheradvantages．Firstly,ontheDeviceNetfieldbusandtheembeddedarchitecturemadeas—peeificexplanation．Second，explaineddesignprogramofsystem．Thenintroduc-cdha