VB_ADS通讯.ppt

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1、TwinCATTotalWindowsControlandAutomationTechnologyTwinCATADSDefinitionExcursion:TwinCATdeviceconcepta.)IdentificationofTwinCATADSdevicesb.)TwinCATmessagerouterADSa.)Introductionb.)Client-serverrelationshipc.)Accesstypesd.)OverviewofmethodsSetvaluesprofiles7/23/20212Jose

2、fPapenfortDefinitionADS=AutomationDeviceSpecification-modularADSdevicese.g.PLC(eachruntimesystem),NC,...-messageexchangebyADSviathemessagerouterADS(General)7/23/20213JosefPapenfortADSserverunambiguouslyidentifiableby:AdsAmsServerPortRouterunambiguouslyidentifiableby:Ad

3、sAmsServerNetIDTwinCATDeviceconcept7/23/20214JosefPapenfort-Every(TwinCAT)PCinthenetworkcanbeuniquelyidentifiedbymeansofaTCP/IPaddresssuchas"172.1.2.16".-TheAdsAmsServerNetIDisanextensionoftheTCP/IPaddress,andidentifiesamessagerouter,e.g."172.1.2.16.1.1"-Thelasttwofigu

4、rescanbefreelyselected.IdentificationofADSdevices7/23/20215JosefPapenfortTheADSserversofamessagerouterareclearlyidentifiedbyanumber(->AdsAmsServerPort).ThefollowingAdsAmsServerPortnumbersarealreadyassigned:801,811,821,831:TwinCATPLCserver,1.-4.run-timesystem500:TwinCAT

5、NCserver100:TwinCATloggerIdentificationofADSdevices7/23/20216JosefPapenfortTwinCATmessagerouter(I)Example:AnADSclientsendsanADSmessagetoanADSserver.TheTwinCATmessagerouter(transportlayer4)carriesout:-acceptanceoftherequestfromtheclient-forwardingthemessagetoanrouterifa

6、ppropriate-provisionofthemessagestotheADSserverTwinCATmessagerouter(I)7/23/20217JosefPapenfortExistingmessagerouter:OneveryTwinCATPCOneveryEmbeddedPCCX1000,CX1001OneverybuscontrollerBX1000-Oneverybuscontroller(e.g.BC3100,BC8100,...,BCxxxx)Possiblecommunicationpaths:-Ne

7、twork(TCP/IP)APLCrun-timesystemsendsdatatoanotherPLConanotherTwinCATPCinthenetwork.-Fieldbus(Lightbus/Profibus)APLCrun-timesystemsendsdatatoanotherPLConabuscontrollerinthefieldbus.TwinCATmessagerouter(II)7/23/20218JosefPapenfortTheADSinterfacepermits:Standard:-communic

8、ationwithotherADSdevicesClientrequestsdataorservices,serveranswersautomaticallySpecialsolutions:-implementationofanAD