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Schneider Electric 840 USE 106 0 manual Theory of IEC Hsby Operation

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Theory of IEC HSBY Operation

54	840 USE 106 00 January 2003

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Schneider Electric 840 USE 106 0 manual Theory of IEC Hsby Operation

Contents

Quantum Hot Standby USE 106Page Table of Contents Using a Quantum 984 Hsby System Theory of IEC Hsby OperationPlanning a Quantum Hot Standby System Using a Quantum IEC Hot Standby System Additional Guidelines for IEC Hot StandbyEthernet Hot Standby Solution MaintenanceAppendix C ProWORX Nxt Configuration Specifications for CHS 110 Hot StandbyAppendix a Com Act Error Patterns Appendix B Fiber Optic Cable GuidePage Safety Information ProcedureImportant Information Please Note Persons Schneider Electric All Rights ReservedValidity Note About the BookAt a Glance Related DocumentsAbout the Book What’s in this Overview of Quantum Hot StandbyPurpose Chapter?Overview of Quantum Hot Standby 1Control IntroductionPurpose What’s in this Section? Role of the CHS Primary and Standby ControlDescription Hot StandbyHardware Components in a Quantum Hot Standby System Cables See Fiber Optic Cable Guide, pCHS 110 Hot Standby Module TopologyPanel Controls Module Following table shows the five status indicatorsLED Display 140 CHS 110Update Button KeyswitchSlide Switch FunctionHsby Modes of Hsby has three Modes of Operation 2OperationModes of Operation OperationRun Mode Ignores your actionPrimary unit fails 3Cabling Fiber Optic Cable CableConnections CHS 210 Hot Standby Kit Hsby and IEC Hsby Quantum 984 Hot Standby involves HsbyArchitecture Module VersionIEC compliant languages FBD, LD, SFC, IL and ST Upgrade PLC firmwareRIO is serviced differently Hsby systemFiber Optic CHS Link 5HPRWRUJUDWHU Standby OverviewTheory of 984 Ladder Logic Hsby Operation This chapter contains the following topicsHow a 984 Hsby System Works System Scan Time Primary Rack ScanSolve Segment Scan Transfer Rate Scan Time Increase table belowPLC to CHS Data Leads to the following resultsExample Scan Time Increase Table in PLC Scan Times, pState RAM Transfer and Scan Time TimeTheory of 984 Hsby Operation Default Transfer Area AutomaticTransfer Primary to the Standby controller on every scan Example Custom State Alternatives to the default transfer areaCustomizing Options AreaCustom Scans Setting upUp using multiple scans to transfer all the data Custom ScansTheory of 984 Hsby Operation Theory of IEC Hsby Operation Following are IEC Hot Standby definitions IEC Hot Standby DefinitionsDefinitions IEC runtime systemProgram Data IEC HeapCurrently used IEC Heap Size and the Maximum IEC Heap Size Online -- Memory StatisticsProgram. There are three steps in the transfer process How an IEC Hsby System WorksIEC Theory State RAM DefinedSystem Scan Time Transfer diagram The following shows a transfer diagram Primary RackStandby Rack Time Scan Time Increase Table below Following resultIEC Scan Time Increase IEC Scan Time Increase Table See Overall PLC Scan Time, p State Ram Transfer and Scan Time Configured for IEC Hsby Layout Transferred RAMStandby’s IEC data consistency Theory of IEC Hsby Operation Planning a Quantum Hot Standby System Controllers Guidelines for Planning a Hot Standby SystemPrimary PositioningElectrical Safety Precautions Safety PrecautionsRemote I/O Cable Topologies Single Cable Configuration ConfigurationSingle Cable Standby PLC Dual Cable ConfigurationDual Cable Standby system Primary PLCProcedure InstallationHow to Install a Hot Standby System Installing a HotBattery has been disconnected for at least five minutes SettingDesignation Set to B Slide Switches DamageFollowing diagram illustrates the network connections NetworkStep Diagram Aligning Key Locking RingAdding Hot Converting to You need backplanes with at least four slotsUsing a Quantum 984 Hsby System Using a Quantum 984 Hsby System 1Configuration Configuring 984 Hsby CHSModsoft System by CHS Installed into your applicationControlling InstructionExtension Configuration ExtensionHot Standby System by SystemExecute Hsby Unconditionally Enable Command CHS InstructionHsby System Active Using the CHS Instruction Block Using CHS Instruction Block Hot Standby Command Register HazardCommand Register Nontransfer Area Within the State RAM Transfer Elements of the Nontransfer Area Status RegisterConfiguration CHS moduleZoom screen of CHS Instruction Zoom ScreenScreens must be identical to those in the CHS block Bits in the Hot Hot Standby Status RegisterStatus Register Standby Status RegisterReverse Transfer Registers Reverse Transfer Logic Example ReverseTransfer Logic Segment 000813 Using Configuration Extension Using a Quantum 984 Hsby SystemConcept shown Hot Standby Dialog Dialog Standby ConceptBits in the Hot Standby Command Register Commandsystem RegisterHot Standby Command Register Hazard Run Keyswitch Override and Run ModeKeyswitch Override Hazard OverridePower up the system again. Download the new configuration Software Control ExampleOption Standby on Logic Mismatches Mismatch HazardPort Address SwitchoverModbus Plus Swapping atTransferred if this check box is activated Transfer All State RAMTransfer All Check box Nontransfer AreaHot Standby Status Register for Configuration Extension Status Register for Configuration extensionAdvanced Options AdvancedDefining the Transfer Area of State RAM Additional RAM State RAM dialogDialog 12K OptionUser Defined Option State RAM Transfer Transferring Additional State RAM Data Transfer Additional State RAM Hazard101 Scan Transfers Data TypeBegins again, sending the first 512 additional registers 4Operation Starting Your Hot Standby System Preconditions Starting the SystemStep Action Ready Fault RIO HeadStandby Backplane Synchronizing Time-of-Day Clocks ClockSynchronization Following diagram shows synchronizing time-of-day clocks Network 1 of SegmentNetwork 2 of Segment While Your System Is Running Using a Quantum IEC Hot Standby System This chapter presents operating procedures for the IEC HsbyUsing a Quantum IEC Hot Standby System This section describes Quantum IEC Hot Standby configuration Loading the Software @2IE V196 Concept Loadables Installation Screen@1SE V196 @2I7 V208IEC Logic in a Standby controller executes the logic of segmentTransfer from Primary to Standby UsingExtensions Loadables are removed from the project automaticallyHot Standby Dialog Activation of Hot Standby DialogConcept 2.5 shown Specify Specifying the Command RegisterStandby Command Register Register isRange Hot Standby Command RegisterEnable it Register. HoweverEnable Keyswitch Override SoftwareControl Example Software Control Options forOption Stage Description CommentExec Upgrade Without Stopping Application Stopped Cancel Advanced Options ConceptSystem Executive Upgrade Procedure Stopping the processLogic Mismatch Map / Configuration HazardStandby on Logic Mismatch For ConceptLogic Updating Project Data that do not exist on both controllers is not updatedProject global data that is updated includes Global DataSwapping Addresses at Switchover Is alsoMatter if they reside in the Standby or Primary rack IP AddressNOE 771 cannot be controlled, it is always activated Standby BackplanesUsing a Quantum IEC Hot Standby System State RAMNontransfer Area of State RAM 4nnnnn Controllers Supported only with Concept 2.5 or higherRegisters Diagram below shows a PLC Memory PartitionMemory Partition Shows how the number of IEC Hsby Registers can be modifiedState RAM Size State RAM SizeSection Transfer Control Section Transfer ControlFBD Select Component of Type Bool Starting 5OperationPreconditions Regardless of its designation as a or B140 CHS 110 RIO HeadNormal Operation Memory/Scantime optimization IEC State RAMMap 142 Screenshot of the Memory Prediction dialog is shown below Memory PredictionMemory StatisticsFor IEC Hot Standby data Synchronizing Time of Day Clocks Regular Data Constant InternalMonitoring TransfersAdditional Guidelines for IEC Hot Standby Additional Guidelines for IEC Hot Standby General Application Requirements Existing IEC Memory SavingsAssessing ApplicationsMemory Statistics Memory Following screen shows memory statistics Statistics152 Optimization IEC Applications Needed to achieve itConfigured State Efficient Use of State RAMRAM Registers Anything else Efficient UseIEC Application DataEfficiency Tips Use Constants Instead of Equal Literals RealB RealC RealDRealF RealG RealH Use Constants Instead of Open Inputs 160 Programmed Logic Reduce the Use Of Complex Data Structures Ethernet Hot Standby Solution SolutionOverview of Hot Standby Solution for NOEs SolutionPlease Note Service NOE 771 Hot Standby Topology DropNOE Configuration and Hot Standby Device can be assigned the configured IP + 1 addressTo download a project to the PLC Configuring IP Address AssignmentTransparency Standalone Mode Primary ModeSecondary Mode Offline Mode CPU is stoppedAddress Effects on IP Address assignment and Ethernet servicesOffline Mode at Power-up Sequence table AssignmentEffects on the Ethernet services Power-UpServices EthernetGoing to Offline AdditionalInformation IP Address Assignment and Going OfflineService Typical Swap Time Maximum Swap Time Address Swap TimesConnections Remote Connection Request during Hot Standby Swap Network Effects of Hot Standby SolutionBrowsers Hot Standby Swap during Remote Connection RequestPublish ServiceScanning Subscribe176 Maintenance Maintenance Health of a Hot Standby System Verifying Health of a Hot Standby System Health MessagesAdditional Checks RecognizingSafety Or equipment damageAvoid Damage to Application I/O Devices Errors Startup Errors Interface Errors Communications ErrorsTroubleshooting LEDsBoard Level Errors Board Level Error 140 CHS 110Replace the faulty CHS 110 module 10.3 Failures Components Detecting Failures in a Hot Standby SystemMain BackplaneStandby module and RIO head to the chart below Detecting Failures in the Primary BackplaneController CHS RIO Head Failure Type Description Detecting Failures in the Standby Backplane Controller CHS RIO Head Failure Description191 Replacement Replacement Replacing a Hot Standby ModulePrimary Backplane Hazard Updating Changing the Program and Performing a Program UpdateBattery Hazard Standby OgicBefore You Program Change HazardStandby controller Off Line Begin Controller as wellUpdating Standby Procedure Amber Standby indicator begins to blink Updating Standby Updating PLC System Executives in a 984 Hsby System Steps to Upgrade Zoom or RDE PLC executives While HotStandby is Running Updating PLC System Executives in an IEC Hsby System Switchover Forcing a Manually TestingForcing a Switchover Take the following steps to force a switchover manuallyPrimary Standby After Taking the Primary Controller OfflineBringing the Original Primary Unit Back Online Through Register, pSpecifications for CHS 110 Hot Standby SpecificationsSpecifications for CHS 110 Hot Standby Specifications for CHS 110 Hot Standby Included here AppendicesAt a Glance Appendix contains the following chaptersAppendices Com Act Error Patterns Purpose What’s in this Chapter?Number Blinks Code Error CHS 110 Hot Standby Module Error PatternsCHS 110 Error PatternsCRP Remote I/O Head Processor Error Patterns Error Patterns The following table shows error patternsNumber Code Error Blinks 212 Fiber Optic Cable Guide Connectors RecommenDations Other Tools Suggested Tools includeOther Tools ProWORX Nxt Configuration ProWORX Nxt Hot Standby Configuration ExtensionMenu and select Hsby Extension from the Tree Control Dialog Screen Hot Standby QuaHot Standby Quantum dialog screen FieldFunctions Parameters of a Quantum Hot Standby systemInitial Command Register Status Registers Dialog screenStatus Register Registers dialog screen Offline state Index Numerics Index Automatic, 108 swapping addresses 226