Beckhoff CX9020 Manuel d'utilisateur télécharger pdf (Page 7)

Productoverview

2.2 Systemoverview

Thesystem

TheCX9020isacompact,DINrailmountableEthernetcontrolsystemwith1GHzARMCortex™A8CPU.

TheconnectionfortheBeckhoffI/OsystemsisdirectlyintegratedintotheCPUmodule.Theunitoffers

automaticbussystemidentification(KbusorEbus)andindependentlyswitchesinthecorresponding

mode.TheCX9020comprisestheCPUwithtwomicroSDcardslots,theinternalRAMand128kBNOVRAM

asnonvolatilememory.ThebasicconfigurationalsoincludestwoswitchedEthernetRJ45interfaces,four

USB2.0interfacesandaDVIDinterface.TheRJ45interfacesareconnectedtoaninternalswitchandoffer

asimpleoptionforcreatingalinetopologywithouttheneedforadditionalEthernetswitches.Theoperating

systemisMicrosoftWindowsEmbeddedCompact7.TwinCAT2automationsoftwaretransformsaCX9020

systemintoapowerfulPLCandMotionControlsystemthatcanbeoperatedwithorwithoutvisualisation.

Optionally,theunitcanbeorderedwithafieldbus,serialoraudiointerface.

Theextendedoperatingtemperaturerangebetween25and+60°Cenablesapplicationinclimatically

demandingsituations.

EtherCATasafastI/Osystem

TheCX9020EmbeddedPCwasdevelopedforoptimuminteractionwithEtherCAT.

Interestingly,EtherCAToffersseveraloptionsforconnectingconventionalfieldbussystemstotheCX9020:

AsanEtherCATdeviceinterminalform.ThePROFIBUSmasterisavailableeitherasaCX1500M310oras

aEL6731EtherCATterminal.Inpractice,thismeansthatthePROFIBUSmastercanbepositionedexactly

whereitisrequiredwithinamachine.ItnolongerhastobeimplementedasaplugincardintheIPCora

mastercontrollerinthecontrolcabinet.

PLC,MotionControl,interpolationandvisualisation

AsaDINrailIPCandinconjunctionwiththeTwinCATsoftwarefromBeckhoff,theCX9020offersthesame

functionalityaslargeIndustrialPCs.IntermsofPLC,uptofourvirtualIEC61131CPUscanbeprogrammed

withuptofourtaskseach.AllIEC611313languagescanbeused.

Moreover,allTwinCATfunctionalitiesareavailableforMotionControlapplications:

Intheory,upto256axescanbecontrolled.Inadditiontosimplepointtopointmovements,morecomplex

multiaxisfunctionssuchas“electronicgearbox”,“camplates”and“flyingsaw”canbeimplemented.

Inadditiontorealtimeexecutionofcontroltasks,theTwinCATrealtimekernelensuresthatenoughtime

remainsfortheuserinterface(HMI),tocommunicatewiththerealtimecomponentsviasoftwareinterfaces

suchasADSorOPC.

CX9020 7Version1.1

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Beckhoff CX9020 Manuel d'utilisateur Page 7