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ContentsPracticalapplicationsofSCADAThemodelofSCADAComponentsof1SCADA:Design,SelectionandInstallationIntroduction–WhatIsASCADA System?Keywords:SupervisoryControlandDataAcquisition(SCADA)System,Protocols,SecurityTrendsINTRODUCTIONSCADASystemComponents
TheSupervisoryControlandDataAcquisition(SCADA)isasystemthataimstomonitorandcontrolfielddevicesatyourremotesitesAstandard,thatfitsA SCADAsystemconsistsofanumberofremoteterminalunits(RTUs)collectingfielddataandsendingthatdatabacktoamasterstation,viaacommunication systemThetermSCADA(supervisorycontrolanddataacquisition)isacontrolsystemarchitecturecomprisingcomputers,networkeddatacommunicationsand graphicaluserinterfacesforhigh-levelsupervisionofmachinesandprocessessystemandtheexistingmethodsorsecuritymethodsthathavebeendeployedwithin theSCADAsystemWorkingdownthetypicalorganisationalcharttheseareSCADAhardwareTelemetrysystemsareakeyelementofaSCADAsystem providingthenecessarytransferofanaloganddigitaldatafromtheRemoteTerminalUnits(RTUs)tothemasterstations.SCADAisacentralizedsystemthat monitorsandcontrolstheentireareaChapterSCADAandTelemetryFundamentals.SCADAisanacronymforSupervisoryControlandDataAcquisition. SCADAsystemsarecriticalasithelpsmaintainefficiencybycollectingandprocessingreal-timedataSCADAisanacronymforSupervisoryControlandData AcquisitionThisreviewalsogivesdirectionstosecureSCADAnetworkcommunicationThispaperrepresentsanadaptableandlowcostSCADAsystemfora particularsugarmanufacturingprocess,byusingProgrammableLogicControls(Siemenss,Dc/Dc/Rly)SCADASYSTEMTYPESDatagatheringandsystem controlatthehighestlevelisbrokenintotwobasicsystems:SCADA–SupervisoryControlandDataAcquisitionDCS–DistributedControlSystemDefinitionof SCADAisaMonitoringand/orControlSystemthatutilizesacentralcomputerforSCADAorSupervisorycontrolanddataacquisitionissetofsoftwareand hardwareelementswhichisusedinindustrialenvironmentsformonitoringandgatheringinformationaboutvariousprocessesandforcontrollingvarioussensors, valves,pumps,and,motorsSIMATICWinCC®isascalableprocessvisual-izationsystem(SCADA)thatisgraduatedbypriceandperformance,withefficient func-tionsforcontrollingautomatedprocessesProvidesacompleteguidetoSCADA(supervisorycontrolanddataacquisition)andtheautomationofpower systemsThisreviewalsogivesdirectionstosecureSCADAnetworkSCADA:Design,SelectionandInstallationIntroduction–WhatIsASCADASystem? ExplainsSCADAfundamentals,includingRTUs,IEDs,masterstations,andHMIDiscussestheimportanceofautomation,acceptanceofstandards, interoperability,andtheneedforintegrationofcommunicationssystemsSCADAOverviewSCADAsystemsareusedtomonitorandcontrolaplantor equipmentinindustriessuchastelecommunications,waterandwastecontrol,energy,oilandgasrefiningandtransportationItalsocoverssensorsandother devices,suchasprogrammablelogiccontrollers,whichinterfacewithprocessplantorSCADAisthetechnologythatallowstheoperatortogatherdatafromone ormorevariousfacilitiesandtosendcontrolinstructionstothosefacilitiesSupervisoryControlandDataAcquisition(SCADA)systemshavebeeninusein variousformsforoverthirtyyearsMostindustrialcontrolandmonitoringsystemscanbebrokendownintoseverallevelsThemasterstationdisplaystheacquired dataandallowstheoperatortoperformremotecontroltasksSCADAFunctionsASCADAsystemperformsfourfunctionsDataacquisitionNetworkeddata communicationDatapresentationControlSCADASubsystemsAHuman-MachineInterfaceorHMIistheapparatuswhichpresentsprocessdatatoahuman operator,andthroughthis,thehumanoperatormonitorsandcontrolstheprocessOverviewSCADAisanacronymforSupervisoryControlandDataAcquisition IntroductionausystèmeSCADAVIIntroductionLespremierssystèmesSCADAsontapparusdanslesannéesPourlapremièrefoisildevenaitpossible d'actionnerunecommandedeterrain(unevanneparexemple)depuisuncentredecontrôleàdistance,plutôtqueparuneinterventionmanuellesursitesystemand theexistingmethodsorsecuritymethodsthathavebeendeployedwithintheSCADAsystem