Configured for IEC Hsby | Schneider Electric 840 USE 106 0 specification

Theory of IEC HSBY Operation

All State RAM The following diagram shows the state RAM transfer area. transferred

Total number of discrete outputs transferred

Total number of discrete inputs transferred

Total number of register inputs transferred

0nnnnn

1nnnnn	Where nnnnn is a
	multiple of 16
	Note: No 3x registers
	configured for IEC HSBY
3nnnnn

Total number of register outputs transferred

4nnnnn

52	840 USE 106 00 January 2003

Image 52

Schneider Electric 840 USE 106 0 manual Configured for IEC Hsby

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 Standby Ethernet Hot Standby Solution Maintenance Specifications 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 Reserved About the Book At a GlanceValidity Note Related Documents About 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 Standby Hardware Components in a Quantum Hot Standby System Cables See Fiber Optic Cable Guide, p Topology CHS 110 Hot Standby ModulePanel Controls Following table shows the five status indicators LED DisplayModule 140 CHS 110 Keyswitch Slide SwitchUpdate Button Function 2Operation Modes of OperationHsby Modes of Hsby has three Modes of Operation Operation Ignores 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 Version Upgrade PLC firmware RIO is serviced differentlyIEC compliant languages FBD, LD, SFC, IL and ST Hsby system Fiber Optic CHS Link 5HPRWRUJUDWHU Standby Overview Theory of 984 Ladder Logic Hsby Operation This chapter contains the following topics How 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 results Example Scan Time Increase Table in PLC Scan Times, p State RAM Transfer and Scan Time Time Theory 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 Area Setting up Up using multiple scans to transfer all the dataCustom Scans Custom Scans Theory of 984 Hsby Operation Theory of IEC Hsby Operation IEC Hot Standby Definitions DefinitionsFollowing are IEC Hot Standby definitions IEC runtime system IEC Heap Currently used IEC Heap Size and the Maximum IEC Heap SizeProgram Data Online -- Memory Statistics How an IEC Hsby System Works IEC TheoryProgram. There are three steps in the transfer process State RAM Defined System 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 Positioning Electrical Safety Precautions Safety Precautions Remote I/O Cable Topologies Configuration Single Cable ConfigurationSingle Cable Dual Cable Configuration Dual Cable Standby systemStandby PLC Primary PLC Installation How to Install a Hot Standby SystemProcedure Installing a Hot Setting Designation Set to B Slide SwitchesBattery has been disconnected for at least five minutes Damage Following diagram illustrates the network connections Network Step Diagram Aligning Key Locking Ring Adding Hot Converting to You need backplanes with at least four slots Using a Quantum 984 Hsby System Using a Quantum 984 Hsby System 1Configuration CHS Configuring 984 HsbyModsoft Installed into your application ControllingSystem by CHS Instruction Configuration Extension Hot Standby System byExtension System CHS Instruction Execute Hsby Unconditionally Enable CommandHsby System Active Using the CHS Instruction Block Using CHS Instruction Block Hot Standby Command Register Hazard Command Register Nontransfer Area Within the State RAM Transfer Elements of the Nontransfer Area Status Register Configuration CHS module Zoom 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 Register Reverse Transfer Registers Reverse Reverse Transfer Logic ExampleTransfer Logic Segment 000813 Using Configuration Extension Using a Quantum 984 Hsby System Concept shown Hot Standby Dialog Dialog Standby Concept Bits in the Hot Standby Command Register Commandsystem Register Hot Standby Command Register Hazard Keyswitch Override and Run Mode Keyswitch Override HazardRun Override Software Control Example Power up the system again. Download the new configurationOption Standby on Logic Mismatches Mismatch Hazard Switchover Modbus PlusPort Address Swapping at Transfer All State RAM Transfer AllTransferred if this check box is activated Check box Nontransfer Area Hot Standby Status Register for Configuration Extension Status Register for Configuration extension Advanced Options Advanced Defining the Transfer Area of State RAM Additional RAM State RAM dialog Dialog 12K Option User Defined Option State RAM Transfer Transferring Additional State RAM Data Transfer Additional State RAM Hazard 101 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 Hsby Using 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 V208 IEC Logic in a Standby controller executes the logic of segment Using ExtensionsTransfer from Primary to Standby Loadables are removed from the project automatically Hot Standby Dialog Standby Dialog Activation of HotConcept 2.5 shown Specifying the Command Register Standby Command RegisterSpecify Register is Hot Standby Command Register Enable itRange Register. However Software Enable Keyswitch OverrideControl Example Options for OptionSoftware Control Stage Description Comment Exec Upgrade Without Stopping Application Stopped Cancel Advanced Options Concept System Executive Upgrade Procedure Stopping the process Map / Configuration Hazard Standby on Logic MismatchLogic Mismatch For Concept Logic Data that do not exist on both controllers is not updated Project global data that is updated includesUpdating Project Global Data Swapping Addresses at Switchover Is also IP Address NOE 771 cannot be controlled, it is always activatedMatter if they reside in the Standby or Primary rack Standby Backplanes Using a Quantum IEC Hot Standby System State RAM Nontransfer Area of State RAM 4nnnnn Controllers Supported only with Concept 2.5 or higher Diagram below shows a PLC Memory Partition Memory PartitionRegisters Shows how the number of IEC Hsby Registers can be modified State RAM Size State RAM Size Section Transfer Control Section Transfer Control FBD Select Component of Type Bool 5Operation PreconditionsStarting Regardless of its designation as a or B 140 CHS 110 RIO Head Normal Operation IEC State RAM Memory/Scantime optimizationMap 142 Screenshot of the Memory Prediction dialog is shown below Memory Prediction Statistics MemoryFor IEC Hot Standby data Synchronizing Time of Day Clocks Constant Internal MonitoringRegular Data Transfers Additional Guidelines for IEC Hot Standby Additional Guidelines for IEC Hot Standby General Application Requirements Memory Savings AssessingExisting IEC Applications Memory Statistics Memory Following screen shows memory statistics Statistics 152 Optimization IEC Applications Needed to achieve it Efficient Use of State RAM Configured StateRAM Registers Efficient Use IEC ApplicationAnything else Data Efficiency 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 Solution Solution Overview of Hot Standby Solution for NOEsPlease Note Service NOE 771 Hot Standby Topology Drop Device 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 stopped Effects on IP Address assignment and Ethernet services Offline Mode at Power-up Sequence tableAddress Assignment Power-Up ServicesEffects on the Ethernet services Ethernet Additional InformationGoing to Offline IP Address Assignment and Going Offline Address 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 Request Service ScanningPublish Subscribe 176 Maintenance Maintenance Health of a Hot Standby System Verifying Health of a Hot Standby System Health Messages Additional Checks Recognizing Or equipment damage SafetyAvoid Damage to Application I/O Devices Errors Startup Errors Communications Errors TroubleshootingInterface Errors LEDs Board Level Error 140 CHS 110 Board Level ErrorsReplace the faulty CHS 110 module 10.3 Failures Detecting Failures in a Hot Standby System MainComponents Backplane Detecting 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 Description 191 Replacement Replacing a Hot Standby Module ReplacementPrimary Backplane Hazard Changing the Program and Performing a Program Update Battery HazardUpdating Standby Ogic Program Change Hazard Standby controller Off LineBefore You Begin Controller as well Updating 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 manually Primary Standby After Taking the Primary Controller Offline Bringing the Original Primary Unit Back Online Through Register, p Specifications 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 chapters Appendices Com Act Error Patterns Purpose What’s in this Chapter? CHS 110 Hot Standby Module Error Patterns CHS 110 ErrorNumber Blinks Code Error Patterns Error 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 include Other Tools ProWORX Nxt Hot Standby Configuration Extension ProWORX Nxt ConfigurationMenu and select Hsby Extension from the Tree Control Dialog Screen Hot Standby Qua Field FunctionsHot Standby Quantum dialog screen Parameters of a Quantum Hot Standby system Status Registers Dialog screen Initial Command RegisterStatus Register Registers dialog screen Offline state Index Numerics Index Automatic, 108 swapping addresses 226