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TABLEOF CONTENT
• 1
• Copyright © Appin Technology Lab
• •Introduction of PLC
• •Introduction of Scada
• •What is PLC
• •Importance of PLC
• •How PLC works
• •What is Scada
• •Importance of Scada
• •How Scada works
• •Components of SCADA
• •Scada Architectures
• •Why Plc-Scada
• •Benefits Of PLC-Scada
• •Scope of PLC-Scada
• TABLEOF CONTENT
INTRODUCTION OF PLC
• Programmablelogiccontrollers(PLCs)havebeenanintegralpartoffactoryauto
mationandindustrialprocesscontrolfordecades.PLCscontrolawidearrayofapp
licationsfromsimplelightingfunctionstoenvironmentalsystemstochemicalpro
cessingplants.Thesesystemsperformmanyfunctions,providingavarietyofanal
oganddigitalinputandoutputinterfaces;signalprocessing;dataconversion;and
variouscommunicationprotocols.AllofthePLC'scomponentsandfunctionsare
centeredaroundthecontroller,whichisprogrammedforaspecifictask.
• ThebasicPLCmodulemustbesufficientlyflexibleandconfigurabletomeetthed
iverseneedsofdifferentfactoriesandapplications.Inputstimuli(eitheranalogor
digital)arereceivedfrommachines,sensors,orprocesseventsintheformofvolta
georcurrent.ThePLCmustaccuratelyinterpretandconvertthestimulusfortheC
PUwhich,inturn,definesasetofinstructionstotheoutputsystemsthatcontrolac
tuatorsonthefactoryfloororinanotherindustrialenvironment
• Simatic WinCC Flexible June/2007
• SIEMENS LTD EGYPT 2007
• 4
• s
• Application for HMI
• Controller with one HMI devices
• Controller with several HMI devices
• Control with one HMI device
• An HMI device which is directly connected
• to the controller via the process bus is
• referred to as a single-user system.
• Single-user systems are generally used
• near production, but can also be deployed
• to operate and monitor independent part
• processes or system sections.
• Controller with several HMI devices
• Several HMI devices are connected to
• one or more controllers via a process bus
• (e.g. PROFIBUS or Ethernet).
• Such systems are deployed, for example,
• in a production line to operate the plant
• from several points.
• Simatic WinCC Flexible June/2007
• SIEMENS LTD EGYPT 2007
• 5
• s
• Application for HMI
• HMI System with centralized
• functions
• An HMI system is connected to a PC via
• Ethernet. The upstream PC assumes
• central functions, e.g. recipe
• management. The necessary recipe data
• records are provided by the subordinate
• HMI system.
Introduction to PLC and SCADA Systems
Introduction to PLC and SCADA Systems

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Introduction to PLC and SCADA Systems

  • 1.
  • 2. TABLEOF CONTENT • 1 • Copyright © Appin Technology Lab • •Introduction of PLC • •Introduction of Scada • •What is PLC • •Importance of PLC • •How PLC works • •What is Scada • •Importance of Scada • •How Scada works • •Components of SCADA • •Scada Architectures • •Why Plc-Scada • •Benefits Of PLC-Scada • •Scope of PLC-Scada • TABLEOF CONTENT
  • 3.
  • 4. INTRODUCTION OF PLC • Programmablelogiccontrollers(PLCs)havebeenanintegralpartoffactoryauto mationandindustrialprocesscontrolfordecades.PLCscontrolawidearrayofapp licationsfromsimplelightingfunctionstoenvironmentalsystemstochemicalpro cessingplants.Thesesystemsperformmanyfunctions,providingavarietyofanal oganddigitalinputandoutputinterfaces;signalprocessing;dataconversion;and variouscommunicationprotocols.AllofthePLC'scomponentsandfunctionsare centeredaroundthecontroller,whichisprogrammedforaspecifictask. • ThebasicPLCmodulemustbesufficientlyflexibleandconfigurabletomeetthed iverseneedsofdifferentfactoriesandapplications.Inputstimuli(eitheranalogor digital)arereceivedfrommachines,sensors,orprocesseventsintheformofvolta georcurrent.ThePLCmustaccuratelyinterpretandconvertthestimulusfortheC PUwhich,inturn,definesasetofinstructionstotheoutputsystemsthatcontrolac tuatorsonthefactoryfloororinanotherindustrialenvironment
  • 5.
  • 6. • Simatic WinCC Flexible June/2007 • SIEMENS LTD EGYPT 2007 • 4 • s • Application for HMI • Controller with one HMI devices • Controller with several HMI devices • Control with one HMI device • An HMI device which is directly connected • to the controller via the process bus is • referred to as a single-user system. • Single-user systems are generally used • near production, but can also be deployed • to operate and monitor independent part • processes or system sections. • Controller with several HMI devices • Several HMI devices are connected to • one or more controllers via a process bus • (e.g. PROFIBUS or Ethernet). • Such systems are deployed, for example, • in a production line to operate the plant • from several points.
  • 7. • Simatic WinCC Flexible June/2007 • SIEMENS LTD EGYPT 2007 • 5 • s • Application for HMI • HMI System with centralized • functions • An HMI system is connected to a PC via • Ethernet. The upstream PC assumes • central functions, e.g. recipe • management. The necessary recipe data • records are provided by the subordinate • HMI system.