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Schneider Electric 840 USE 106 0 manual Additional Guidelines for IEC Hot Standby

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Additional Guidelines for IEC Hot Standby

148	840 USE 106 00 January 2003

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Schneider Electric 840 USE 106 0 manual Additional Guidelines for IEC Hot Standby

Contents

Quantum Hot Standby USE 106Page Table of Contents Theory of IEC Hsby Operation Using a Quantum 984 Hsby SystemPlanning a Quantum Hot Standby System Using a Quantum IEC Hot Standby System Additional Guidelines for IEC Hot StandbyEthernet Hot Standby Solution MaintenanceSpecifications for CHS 110 Hot Standby Appendix a Com Act Error PatternsAppendix C ProWORX Nxt Configuration Appendix B Fiber Optic Cable GuidePage Procedure Safety InformationImportant Information Please Note Persons Schneider Electric All Rights ReservedAbout the Book At a GlanceValidity Note Related DocumentsAbout the Book Overview of Quantum Hot Standby PurposeWhat’s in this Chapter?Overview of Quantum Hot Standby Introduction 1ControlPurpose What’s in this Section? Primary and Standby Control DescriptionRole of the CHS Hot StandbyHardware Components in a Quantum Hot Standby System Cables See Fiber Optic Cable Guide, pTopology CHS 110 Hot Standby ModulePanel Controls Following table shows the five status indicators LED DisplayModule 140 CHS 110Keyswitch Slide SwitchUpdate Button Function2Operation Modes of OperationHsby Modes of Hsby has three Modes of Operation OperationIgnores your action Run ModePrimary unit fails 3Cabling Cable Fiber Optic CableConnections CHS 210 Hot Standby Kit Hsby and IEC Hsby Hsby ArchitectureQuantum 984 Hot Standby involves Module VersionUpgrade PLC firmware RIO is serviced differentlyIEC compliant languages FBD, LD, SFC, IL and ST 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 Primary Rack Scan System Scan TimeSolve Segment Scan Scan Time Increase table below PLC to CHS DataTransfer Rate Leads to the following resultsExample Scan Time Increase Table in PLC Scan Times, pState RAM Transfer and Scan Time TimeTheory of 984 Hsby Operation Automatic Default Transfer AreaTransfer Primary to the Standby controller on every scan Example Alternatives to the default transfer area Customizing OptionsCustom State AreaSetting up Up using multiple scans to transfer all the dataCustom Scans Custom ScansTheory of 984 Hsby Operation Theory of IEC Hsby Operation IEC Hot Standby Definitions DefinitionsFollowing are IEC Hot Standby definitions IEC runtime systemIEC Heap Currently used IEC Heap Size and the Maximum IEC Heap SizeProgram Data Online -- Memory StatisticsHow an IEC Hsby System Works IEC TheoryProgram. There are three steps in the transfer process State RAM DefinedSystem Scan Time Primary Rack Transfer diagram The following shows a transfer diagramStandby Rack Following result Time Scan Time Increase Table belowIEC Scan Time Increase IEC Scan Time Increase Table See Overall PLC Scan Time, p State Ram Transfer and Scan Time Configured for IEC Hsby Transferred RAM LayoutStandby’s IEC data consistency Theory of IEC Hsby Operation Planning a Quantum Hot Standby System Guidelines for Planning a Hot Standby System PrimaryControllers PositioningElectrical Safety Precautions Safety PrecautionsRemote I/O Cable Topologies Configuration Single Cable ConfigurationSingle Cable Dual Cable Configuration Dual Cable Standby systemStandby PLC Primary PLCInstallation How to Install a Hot Standby SystemProcedure Installing a HotSetting Designation Set to B Slide SwitchesBattery has been disconnected for at least five minutes 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 CHS Configuring 984 HsbyModsoft Installed into your application ControllingSystem by CHS InstructionConfiguration Extension Hot Standby System byExtension SystemCHS Instruction Execute Hsby Unconditionally Enable CommandHsby 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 Zoom screen of CHS InstructionScreens must be identical to those in the CHS block Hot Standby Status Register Status RegisterBits in the Hot Standby Status RegisterReverse Transfer Registers Reverse Reverse Transfer Logic ExampleTransfer 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 Keyswitch Override and Run Mode Keyswitch Override HazardRun OverrideSoftware Control Example Power up the system again. Download the new configurationOption Standby on Logic Mismatches Mismatch HazardSwitchover Modbus PlusPort Address Swapping atTransfer All State RAM Transfer AllTransferred if this check box is activated 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 Data Type Scan TransfersBegins again, sending the first 512 additional registers 4Operation Preconditions Starting the System Starting Your Hot Standby SystemStep Action RIO Head Ready FaultStandby Backplane Clock Synchronizing Time-of-Day ClocksSynchronization Network 1 of Segment Following diagram shows synchronizing time-of-day clocksNetwork 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 Concept Loadables Installation Screen @1SE V196 @2I7@2IE V196 V208IEC Logic in a Standby controller executes the logic of segmentUsing ExtensionsTransfer from Primary to Standby Loadables are removed from the project automaticallyHot Standby Dialog Standby Dialog Activation of HotConcept 2.5 shown Specifying the Command Register Standby Command RegisterSpecify Register isHot Standby Command Register Enable itRange Register. HoweverSoftware Enable Keyswitch OverrideControl Example Options for OptionSoftware Control Stage Description CommentExec Upgrade Without Stopping Application Stopped Cancel Advanced Options ConceptSystem Executive Upgrade Procedure Stopping the processMap / Configuration Hazard Standby on Logic MismatchLogic Mismatch For ConceptLogic Data that do not exist on both controllers is not updated Project global data that is updated includesUpdating Project Global DataSwapping Addresses at Switchover Is alsoIP Address NOE 771 cannot be controlled, it is always activatedMatter if they reside in the Standby or Primary rack Standby BackplanesUsing a Quantum IEC Hot Standby System State RAMNontransfer Area of State RAM 4nnnnn Controllers Supported only with Concept 2.5 or higherDiagram below shows a PLC Memory Partition Memory PartitionRegisters 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 5Operation PreconditionsStarting Regardless of its designation as a or B140 CHS 110 RIO HeadNormal Operation IEC State RAM Memory/Scantime optimizationMap 142 Screenshot of the Memory Prediction dialog is shown below Memory PredictionStatistics MemoryFor IEC Hot Standby data Synchronizing Time of Day Clocks Constant Internal MonitoringRegular Data TransfersAdditional Guidelines for IEC Hot Standby Additional Guidelines for IEC Hot Standby General Application Requirements Memory Savings AssessingExisting IEC ApplicationsMemory Statistics Memory Following screen shows memory statistics Statistics152 Optimization IEC Applications Needed to achieve itEfficient Use of State RAM Configured StateRAM Registers Efficient Use IEC ApplicationAnything else DataEfficiency Tips RealB RealC RealD Use Constants Instead of Equal LiteralsRealF RealG RealH Use Constants Instead of Open Inputs 160 Programmed Logic Reduce the Use Of Complex Data Structures Ethernet Hot Standby Solution SolutionSolution Overview of Hot Standby Solution for NOEsPlease Note Service NOE 771 Hot Standby Topology DropDevice can be assigned the configured IP + 1 address NOE Configuration and Hot StandbyTo download a project to the PLC IP Address Assignment ConfiguringTransparency Primary Mode Secondary ModeStandalone Mode Offline Mode CPU is stoppedEffects on IP Address assignment and Ethernet services Offline Mode at Power-up Sequence tableAddress AssignmentPower-Up ServicesEffects on the Ethernet services EthernetAdditional InformationGoing to Offline IP Address Assignment and Going OfflineAddress Swap Times Service Typical Swap Time Maximum Swap TimeConnections Network Effects of Hot Standby Solution BrowsersRemote Connection Request during Hot Standby Swap Hot Standby Swap during Remote Connection RequestService ScanningPublish Subscribe176 Maintenance Maintenance Health of a Hot Standby System Verifying Health of a Hot Standby System Health MessagesAdditional Checks RecognizingOr equipment damage SafetyAvoid Damage to Application I/O Devices Errors Startup Errors Communications Errors TroubleshootingInterface Errors LEDsBoard Level Error 140 CHS 110 Board Level ErrorsReplace the faulty CHS 110 module 10.3 Failures Detecting Failures in a Hot Standby System MainComponents BackplaneDetecting Failures in the Primary Backplane Standby module and RIO head to the chart belowController CHS RIO Head Failure Type Description Detecting Failures in the Standby Backplane Controller CHS RIO Head Failure Description191 Replacement Replacing a Hot Standby Module ReplacementPrimary Backplane Hazard Changing the Program and Performing a Program Update Battery HazardUpdating Standby OgicProgram Change Hazard Standby controller Off LineBefore You Begin Controller as wellUpdating Standby Procedure Amber Standby indicator begins to blink Updating Standby Updating PLC System Executives in a 984 Hsby System While Hot Steps to Upgrade Zoom or RDE PLC executivesStandby is Running Updating PLC System Executives in an IEC Hsby System Testing Forcing a SwitchoverSwitchover Forcing a Manually 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 Specifications for CHS 110 Hot StandbySpecifications for CHS 110 Hot Standby Specifications for CHS 110 Hot Standby Appendices At a GlanceIncluded here Appendix contains the following chaptersAppendices Com Act Error Patterns Purpose What’s in this Chapter?CHS 110 Hot Standby Module Error Patterns CHS 110 ErrorNumber Blinks Code Error PatternsError Patterns The following table shows error patterns CRP Remote I/O Head Processor Error PatternsNumber Code Error Blinks 212 Fiber Optic Cable Guide Recommen ConnectorsDations Other Tools Suggested Tools includeOther Tools ProWORX Nxt Hot Standby Configuration Extension ProWORX Nxt ConfigurationMenu and select Hsby Extension from the Tree Control Dialog Screen Hot Standby QuaField FunctionsHot Standby Quantum dialog screen Parameters of a Quantum Hot Standby systemStatus Registers Dialog screen Initial Command RegisterStatus Register Registers dialog screen Offline state Index Numerics Index Automatic, 108 swapping addresses 226