Process Control and Data Acquisition Systems in the PSCCOutlineDistributed Control System (DCS) FunctionalityDeltaV’s MD Controller and I/O – Review of how it all connects…DeltaV Architecture: ProPlus serverDeltaV Architecture: Operator StationsCommunication paths…The directory tree for our DeltaV system…A typical PID Control Module…Configuring a PID Control Module…What an operator might see…Slide Number 12Slide Number 13Slide Number 14PI – How it worksPI – Plant Information SystemEmerson Process Management DeltaV and OSISoft PI in PSCC – NetworkingReferencesProcess Control and Data Acquisition Systems in the PSCCCM4120Chemical Plant OperationsJanuary 20101Outliney Control and Data System Architecture for thePSCCy Intro to PI Data Archival and Retrieval System2Distributed Control System (DCS) Functionalityy Continuous control of processing equipmenty Pre-programmed control software – needs only to be configuredy Control functions are distributed throughout redundant, deterministic networked computer architecture◦ I/O interface and level 1 (basic) control functions◦ advanced control functions◦ human interface3DeltaV’s MD Controller and I/O –Review of how it all connects…4MD Controllerand I/O CardsPlant Area – valves, xmittersI/O cards are specific to device requirements•4-20 mA input, 4-20 mA output•24 VDC input, 24 VDC output, etc.•Foundation Fieldbus InterfaceDeltaV Architecture: ProPlus server5•Stores/serves configuration•Archives data•Displays information•Allows control of processPSCC_DeltaVRedundant HubProPlusServerMD Controllerand I/O CardsPlant Area – valves, xmittersDeltaV Architecture: Operator Stations6•Archive data•Display information (HMI)•Allows process changesPSCC_DeltaVRedundant HubProPlusServerMD Controllerand I/O CardsPlant Area – valves, xmittersOperator StationsCommunication paths…7Redundant Control network Windows XP Workgroup –PSCC_DeltaVWindows Networking and TCP/IP protocolOperator StationsPSCC_DeltaVRedundant HubProPlusServerMD ControllerThe directory tree for our DeltaVsystem…8Control modulesProPlus serverMD controller w/ I/O cards and controllersFieldbus I/O card w/instrumentsOperator StationsA typical PID Control Module…9Analog Input function blockPID function blockAnalog Output function blockConfiguring a PID Control Module…10PID tuning configurationConfiguration for I/O signalsConfiguration of operating parametersAlarm configurationWhat an operator might see…1112Data Archival and Retrieval Systemy Need access to real-time process data w/out risking unauthorized access to control systemy Link process control systems with business management systemsy Provide data for production and compliance reportingy Long-term (years) data storage/ retrieval systemy Optimize use of disk storage and quick recall of archived datay Data retrieval client software tools◦ Import process data into supervisory control or process monitoring applications◦ Import data into management/ production reports◦ Import data for engineering or quality assurance analysis13Process Data Archival & RetrievalSystemOSIsoft PI system:y Enterprise Servery ProcessBook clienty DataLink clienty Batch Management, SPC, Performance Equations, etc.14PI – Plant Information SystemPI – How it worksy PI “tag” is configured for every piece of data to archivey Tags are scheduled to retrieve data periodically (or, on the occurrence of an event)y Data are brought into the archive thru filtering and compression algorithmy Data must pass the filter and compression tests to be archivedy Archive can also store manually entered (lab) data and text strings15PI – Plant Information System16y PI server (uolab-pi) is isolated from mtu.edu by routery PI data are available anywhere with access to www and PI client softwarePI ServerDeltaV ProPlusServer w/ PI data collection interfaceRoutersteam.we.mtu.eduPI data to mtu.edu NetworkEmerson Process Management DeltaV and OSISoft PI in PSCC –Networking17PSCC_DeltaV (green) is a secure Control NetworkPlant Network (red) is local network for plant operationsPlant data is available to the outside thru alias “steam.we.mtu.edu”DeltaV ProPlus Stationmtu.edu NetworkPI Serveruolab-piPlant Network Routersteam.we.mtu.eduPSCC_DeltaVRedundant Hub(4) Operator WorkStationsMD Controllerand I/O CardsReferenceswww.emersonprocess.com , Emerson Process Management, Inc., Jan. 2009.www.OSIsoft.com , OSIsoft, Inc., Jan.