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1、 AutomationandDrives IMATICS7 400H S TheFault tolerantAutomationSystem Benefits AvoidanceofcontrolsystemfailuresduetoindividualfaultsThisisattainedprimarilythrougharedundantconfigurationFault toleranceisrequiredinthefollowingcases WhenprocessingvaluablematerialsWhendowntimesorproductionfailureswould
2、beexpensiveWhenacontrolsystemfailurewouldresultinhighrestartcostsInordertoenableoperationwithoutsupervisoryormaintenancepersonnel Overview Industries 1 Powergenerationanddistribution oil gas electricity PowerplantsPipelinesOffshoreDistrictheatingsystemsChemical electrochemical petrochemicalandpharma
3、ceuticalindustriesMiningEnvironmentalengineeringWatertreatmentRefuseincinerationPulpandpaperSteelandmetal Overview Industries 2 FoodandbeveragesGlassindustrySemiconductorindustry utilities TransportTunnelautomationMarineautomationAirportsRunwaylightingBaggagetransport Overview Systemarchitecture Man
4、agementlevel PCnetwork terminalbus Processlevel Fieldlevel ET200M Ethernet RedundantIM153 Redundantpowersupply HCPUsHotstand by ClientsParallelredundancy ServerParallelredundancyWitharchive matching SWredundancyWarmstand by Mediaredundancy Fault tolerantcommunication Overview RedundantPROFIBUS Syste
5、mintegration HiddenredundancyTransparentprogramming programmingsameasfornon redundantsystems StandardsystemparameterizationStandardhandlingAllSIMATICprogramminglanguagescanbeusedwithoutrestrictionPlatformforFandFHsystems Overview Redundancyprinciple 1 m of nFault tolerantandfailsafe HWorSWvoting A B
6、 C m v n A Coldstand by manualswitchover R A R 1 v 2 1 v 2 2oo2 2oo2 Fault tolerant Failsafe A B A B 1 2 v 2 1 v 2 2oo2 1oo2 Passiveredundancy Activeredundancy Majorityredundancy Redundancywithidenticalcomponents homogeneousredundancy RedundancyprincipleS7 400H Redundancyfeatures Hotstand by automat
7、icswitchover 100msWarmstand by automaticswitchoverinsecondsrange Process Redundancyprinciple 2 IM DI AI AO DO IM FM Synchronization informationandstatusexchange Redundancyfeatures Bumplessmaster stand byswitchover SwitchovertimeSwitchovertime 100msOutputsareretainedduringswitchoverNoinformationorala
8、rm interruptislostSwitchovercriteriaMasterfailurePowersupplyRackSyncmoduleSynccableCPUFailureofaDPstringorDPslaveinterfacemoduledoesnotforceaswitchover Redundancyfeatures Switchover Automaticeventsynchronization Synchronizationprocedure SubcontrollerA SubcontrollerB Cyclesynchronization Subcontrolle
9、rA SubcontrollerB Timesynchronization Commandsynchronization SubcontrollerA SubcontrollerB SubcontrollerA SubcontrollerB Nosynchronization Redundancyfeatures Synchronization Eventsynchronization Synchronization Informationandstatusexchange Automaticeventsynchronization Principle A I10 0 F L DW10 L P
10、W100 S O8 0 A I10 0 F L DW10 L PW100 S O8 0 T PW130 Ackn Value Switchover Synchronization Synchronization Redundancyfeatures Synchronization Automaticeventsynchronization Cycle Self test PIO PIO Match up PII PIIexchange Synchronization Userprogram Userprogram Self test PII Redundancyfeatures Synchro
11、nization Automaticeventsynchronization CustomerbenefitsTransparentprogrammingAllstandardSIMATIC S7programminglanguagesNocommandrestrictionsEasyportingoftheuserprogramfromstandardCPUtofault tolerantCPUBumplessswitchoverNolossofinformationNolossofalarms interruptsBecauseallredundancy specificfunctions
12、arehandledbytheoperatingsystem theusercanfeelassuredthathe shehasdoneeverythingrightasfarasredundancyisconcerned Redundancyfeatures Synchronization Comprehensiveself testfunctions Self testScope CPUMemorySynchronizationlinkOrganization Startupself testCompletetestSelf testincyclicmodeExecutespermane
13、ntlyasbackgroundtaskExecutesinitsentiretywithinaspecifiableamountoftime default 90minutes Redundancyfeatures Self test Onlineprogramming OnlinemodificationssameasforstandardsystemAllmodificationsareautomaticallycopiedtobothCPUsConnectingaPGAtMPIinterfaceViabus MPI DP PROFIBUS Ethernet Redundancyfeat
14、ures Programming Onlineprogramming Programming parameterassignmentSIMATICManagerH stationview Redundancyfeatures Programming OnlineProgramming Programming Hardwareconfiguration Redundancyfeatures Programming ConfigurationinRUN CIR CPUmemoryconfigurationAddingorremoving CentralI OorCPDPslavesPAinterf
15、aceandPAslavesY linkandslavesModulesinmodularDPslavesCPUparameter Redundancyfeatures CIR AutomaticCPUre incorporationfollowingrepair Connectandupdatestand byCPU 1 Stand byrequestslink up Mastercopiesalldatatostand by MASTER STAND BY RUNsolo STOP Executestartroutineandself test CPU1requestsupdate Mas
16、tercopiesdynamicdata DisableDelete CopyandGenerateBlocksfunctions Terminatecommunicationviaconfiguredlinks Disablelow priorityalarms Userprogram OS Redundancyfeatures Onlinerepair AutomaticCPUre incorporationfollowingrepair Connectandupdatestand byCPU 2 Dynamicdatawhichhavechangedsincethelastupdate MASTER STAND BY link up Inputs outputs timers counters memorybits Redundant synchronousoperation Enablealarms interruptsandcommunication Disableallalarms interrupts Redundancyfeatures Onlinerepair Rep
