NETLINX选型指南

NetLinxSelectionGuideNETS-SG001A-EN-Pcover.qxd8/21/033:23PMPage1iPublicationNETS-SG001A-EN-P-September2003TableofContentsSection1ChoosingaNetworkSelectingtheNetworkthatIsRightForYou...................1-1AboutNetworkTopologyandCapacity.......................1-3DeviceNetCapacityandTopology........................1-3ControlNetCapacityandTopology.......................1-4EtherNet/IPCapacityandTopology......................1-8AbouttheNetLinxNetworks..............................1-10AbouttheDeviceNetNetwork..........................1-10AbouttheControlNetNetwork.........................1-11AbouttheEtherNet/IPNetwork........................1-11AboutOurEncompassPartners............................1-12Section2SelectingDeviceNetProductsSelectingaControllerPlatform..............................2-4SelectingI/O............................................2-5SelectingSoftware........................................2-7SelectingPCInterfaces....................................2-8SelectingMedia...........................................2-9RoundMedia.........................................2-9FlatMedia...........................................2-17SelectinganOperatorInterface.............................2-22SelectingSensors........................................2-24SelectingaPowerManagementSolution.....................2-26SelectingaMotorStarter/Protector.........................2-27SelectingaDrive.........................................2-30SelectingMotionControlSolutions.........................2-33SelectingaLinkingDevice.................................2-34Section3SelectingControlNetProductsSelectingaControllerPlatform..............................3-2SelectingI/O............................................3-4SelectingSoftware........................................3-5SelectingPCInterfaces....................................3-6SelectingMedia...........................................3-7SelectingRepeaterModulesandAdapters.....................3-8SelectinganOperatorInterface.............................3-10SelectingaDrive.........................................3-11SelectingaLinkingDevice.................................3-13PublicationNETS-SG001A-EN-P-September2003TableofContentsiiSection4SelectingEtherNet/IPProductsSelectingaControllerPlatform..............................4-2SelectingI/O............................................4-4SelectingSoftware........................................4-5SelectinganOperatorInterface..............................4-6SelectingaDrive..........................................4-9SelectingaLinkingDevice.................................4-10Index1PublicationNETS-SG001A-EN-P-September2003Section1ChoosingaNetworkTheNetLinxOpenNetworkArchitectureistheRockwellAutomationsolutionthatusesopennetworkingtechnologyforseamless,shop-floortotop-floorintegration.ThethreenetworksthatmakeuptheNetLinxarchitecture--DeviceNet,ControlNet,andEtherNet/IP--shareauniversalprotocol,resultinginacommonsetofcommunicationservices.Thisprotocol,knownastheCommonIndustrialProtocol(CIP),enablesyoutocontrol,configure,andcollectdataoveranyoftheNetLinxnetworks.TheNetLinxarchitectureseamlesslyintegratesallthecomponentsinanautomationsystem,fromthesimplestdevicetotheInternet,helpingyoutoimproveflexibility,reduceinstallationcosts,andincreaseproductivity.SelectingtheNetworkThatisRightForYouYourchoiceofnetworkornetworksforyourapplicationdependsonmanyfactors.Usethe5-stepprocessinthissectiontochooseyournetwork:1.Whatwillyoudoonthenetwork?SeeTable1.1andrefertoAbouttheNetLinxNetworksonpages1-10to1-13todeterminehowyournetworkrequirementscorrespondtoourofferings.Select:•networks•productsIMPORTANTInmanyapplications,thebestchoicemaybeacombinationofnetworks.TheDeviceNet,ControlNetandEtherNet/IPnetworkssharethesameCIPprotocolandcanbeeasilyusedtogether.Eachnetworkisoptimizedfordifferentperformance,topologies,andfunctionstosupportdifferentapplications.Table1.1NetworkSelectionRequirementsnetworkrequirementsDeviceNetControlNetEtherNet/IPDataHighway+1RIO1controlI/Ogood(iflow-density)bestbetternogoodconfiguredevicesbestbestbestgoodgoodcollectdata(incomputers)goodbetterbestgoodgoodcontroller-to-controller(peer-to-peer)messaginggoodbestbestgoodnocontroller-to-controller(peer-to-peer)interlockinggoodbestbetternono1ThesenetworksarenotfeaturedinthisSelectionGuideandarelistedforcomparisonpurposesonly.PublicationNETS-SG001A-EN-P-September20031-2ChoosingaNetwork2.Choosethedevicesyouwillconnecttothenetwork:•determineiftheyconnectdirectlyorifyouwillneedanI/Oorcommunicationinterface•usetheremainderofthisdocumenttochooseRockwellAutomationdevices•forinformationonthird-partydevices,visitthefollowingwebsites:3.Determinewhetherthenetworkcapacityandtopologysupportsyournetwork.4.Ensurethatthesystemperformancewillbeacceptable.PerformanceestimatesarenotprovidedinthisSelectionGuide.ConsultwithyourRockwellAutomationrepresentativeforhelpinestimatingperformance.5.ConsultwithyourRockwellAutomationrepresentativetodiscussyournetworkchoices.Yourrepresentativecanoftensaveyoutimeandmo