USE 106
Quantum Hot Standby
Page
Table of Contents
Theory of IEC Hsby Operation
Using a Quantum 984 Hsby System
Planning a Quantum Hot Standby System
Additional Guidelines for IEC Hot Standby
Using a Quantum IEC Hot Standby System
Maintenance
Ethernet Hot Standby Solution
Appendix a Com Act Error Patterns
Specifications for CHS 110 Hot Standby
Appendix C ProWORX Nxt Configuration
Appendix B Fiber Optic Cable Guide
Page
Procedure
Safety Information
Important Information
Persons Schneider Electric All Rights Reserved
Please Note
At a Glance
About the Book
Validity Note
Related Documents
About the Book
Purpose
Overview of Quantum Hot Standby
What’s in this
Chapter?
Overview of Quantum Hot Standby
Introduction
1Control
Purpose What’s in this Section?
Description
Primary and Standby Control
Role of the CHS
Hot Standby
Cables See Fiber Optic Cable Guide, p
Hardware Components in a Quantum Hot Standby System
Topology
CHS 110 Hot Standby Module
Panel Controls
LED Display
Following table shows the five status indicators
Module
140 CHS 110
Slide Switch
Keyswitch
Update Button
Function
Modes of Operation
2Operation
Hsby Modes of Hsby has three Modes of Operation
Operation
Ignores your action
Run Mode
Primary unit fails
3Cabling
Cable
Fiber Optic Cable
Connections
CHS 210 Hot Standby Kit
Hsby and IEC Hsby
Architecture
Hsby
Quantum 984 Hot Standby involves
Module Version
RIO is serviced differently
Upgrade PLC firmware
IEC compliant languages FBD, LD, SFC, IL and ST
Hsby system
Fiber Optic CHS Link 5HPRWRUJUDWHU
Overview
Standby
This chapter contains the following topics
Theory of 984 Ladder Logic Hsby Operation
How a 984 Hsby System Works
Primary Rack Scan
System Scan Time
Solve Segment Scan
PLC to CHS Data
Scan Time Increase table below
Transfer Rate
Leads to the following results
Scan Time Increase Table in PLC Scan Times, p
Example
Time
State RAM Transfer and Scan Time
Theory of 984 Hsby Operation
Automatic
Default Transfer Area
Transfer Primary to the Standby controller on every scan
Example
Customizing Options
Alternatives to the default transfer area
Custom State
Area
Up using multiple scans to transfer all the data
Setting up
Custom Scans
Custom Scans
Theory of 984 Hsby Operation
Theory of IEC Hsby Operation
Definitions
IEC Hot Standby Definitions
Following are IEC Hot Standby definitions
IEC runtime system
Currently used IEC Heap Size and the Maximum IEC Heap Size
IEC Heap
Program Data
Online -- Memory Statistics
IEC Theory
How an IEC Hsby System Works
Program. There are three steps in the transfer process
State RAM Defined
System Scan Time
Primary Rack
Transfer diagram The following shows a transfer diagram
Standby Rack
Following result
Time Scan Time Increase Table below
IEC 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
Layout
Standby’s IEC data consistency
Theory of IEC Hsby Operation
Planning a Quantum Hot Standby System
Primary
Guidelines for Planning a Hot Standby System
Controllers
Positioning
Safety Precautions
Electrical Safety Precautions
Remote I/O Cable Topologies
Configuration
Single Cable Configuration
Single Cable
Dual Cable Standby system
Dual Cable Configuration
Standby PLC
Primary PLC
How to Install a Hot Standby System
Installation
Procedure
Installing a Hot
Designation Set to B Slide Switches
Setting
Battery has been disconnected for at least five minutes
Damage
Network
Following diagram illustrates the network connections
Step
Aligning Key Locking Ring
Diagram
Converting to You need backplanes with at least four slots
Adding Hot
Using a Quantum 984 Hsby System
Using a Quantum 984 Hsby System
1Configuration
CHS
Configuring 984 Hsby
Modsoft
Controlling
Installed into your application
System by CHS
Instruction
Hot Standby System by
Configuration Extension
Extension
System
CHS Instruction
Execute Hsby Unconditionally Enable Command
Hsby System Active
Using the CHS Instruction Block
Hot Standby Command Register Hazard
Using CHS Instruction Block
Command Register
Nontransfer Area Within the State RAM Transfer
Status Register
Elements of the Nontransfer Area
CHS module
Configuration
Zoom Screen
Zoom screen of CHS Instruction
Screens must be identical to those in the CHS block
Status Register
Hot Standby Status Register
Bits in the Hot
Standby Status Register
Reverse Transfer Registers
Reverse
Reverse Transfer Logic Example
Transfer Logic
Segment 000813
Using a Quantum 984 Hsby System
Using Configuration Extension
Concept shown
Dialog Standby Concept
Hot Standby Dialog
Commandsystem Register
Bits in the Hot Standby Command Register
Hot Standby Command Register Hazard
Keyswitch Override Hazard
Keyswitch Override and Run Mode
Run
Override
Software Control Example
Power up the system again. Download the new configuration
Option
Mismatch Hazard
Standby on Logic Mismatches
Modbus Plus
Switchover
Port Address
Swapping at
Transfer All
Transfer All State RAM
Transferred if this check box is activated
Check box Nontransfer Area
Status Register for Configuration extension
Hot Standby Status Register for Configuration Extension
Advanced
Advanced Options
Additional RAM State RAM dialog
Defining the Transfer Area of State RAM
12K Option
Dialog
User Defined Option State RAM Transfer
Transfer Additional State RAM Hazard
Transferring Additional State RAM Data
101
Data Type
Scan Transfers
Begins again, sending the first 512 additional registers
4Operation
Preconditions Starting the System
Starting Your Hot Standby System
Step Action
RIO Head
Ready Fault
Standby Backplane
Clock
Synchronizing Time-of-Day Clocks
Synchronization
Network 1 of Segment
Following diagram shows synchronizing time-of-day clocks
Network 2 of Segment
While Your System Is Running
This chapter presents operating procedures for the IEC Hsby
Using a Quantum IEC Hot Standby System
Using a Quantum IEC Hot Standby System
This section describes Quantum IEC Hot Standby configuration
Loading the Software
@1SE V196 @2I7
Concept Loadables Installation Screen
@2IE V196
V208
Standby controller executes the logic of segment
IEC Logic in a
Extensions
Using
Transfer from Primary to Standby
Loadables are removed from the project automatically
Hot Standby Dialog
Standby Dialog
Activation of Hot
Concept 2.5 shown
Standby Command Register
Specifying the Command Register
Specify
Register is
Enable it
Hot Standby Command Register
Range
Register. However
Software
Enable Keyswitch Override
Control Example
Option
Options for
Software Control
Stage Description Comment
Advanced Options Concept
Exec Upgrade Without Stopping Application Stopped Cancel
Stopping the process
System Executive Upgrade Procedure
Standby on Logic Mismatch
Map / Configuration Hazard
Logic Mismatch
For Concept
Logic
Project global data that is updated includes
Data that do not exist on both controllers is not updated
Updating Project
Global Data
Is also
Swapping Addresses at Switchover
NOE 771 cannot be controlled, it is always activated
IP Address
Matter if they reside in the Standby or Primary rack
Standby Backplanes
State RAM
Using a Quantum IEC Hot Standby System
Nontransfer Area of State RAM
4nnnnn
Supported only with Concept 2.5 or higher
Controllers
Memory Partition
Diagram below shows a PLC Memory Partition
Registers
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
Preconditions
5Operation
Starting
Regardless of its designation as a or B
CHS 110 RIO Head
140
Normal Operation
IEC State RAM
Memory/Scantime optimization
Map
142
Memory Prediction
Screenshot of the Memory Prediction dialog is shown below
Statistics
Memory
For IEC Hot Standby data
Synchronizing Time of Day Clocks
Monitoring
Constant Internal
Regular Data
Transfers
Additional Guidelines for IEC Hot Standby
Additional Guidelines for IEC Hot Standby
General Application Requirements
Assessing
Memory Savings
Existing IEC
Applications
Memory Following screen shows memory statistics Statistics
Memory Statistics
152
Optimization
Needed to achieve it
IEC Applications
Efficient Use of State RAM
Configured State
RAM Registers
IEC Application
Efficient Use
Anything else
Data
Efficiency Tips
RealB RealC RealD
Use Constants Instead of Equal Literals
RealF RealG RealH
Use Constants Instead of Open Inputs
160
Programmed Logic
Reduce the Use Of Complex Data Structures
Solution
Ethernet Hot Standby Solution
Solution
Overview of Hot Standby Solution for NOEs
Please Note
Service NOE 771
Drop
Hot Standby Topology
Device can be assigned the configured IP + 1 address
NOE Configuration and Hot Standby
To download a project to the PLC
IP Address Assignment
Configuring
Transparency
Secondary Mode
Primary Mode
Standalone Mode
Offline Mode CPU is stopped
Offline Mode at Power-up Sequence table
Effects on IP Address assignment and Ethernet services
Address
Assignment
Services
Power-Up
Effects on the Ethernet services
Ethernet
Information
Additional
Going to Offline
IP Address Assignment and Going Offline
Address Swap Times
Service Typical Swap Time Maximum Swap Time
Connections
Browsers
Network Effects of Hot Standby Solution
Remote Connection Request during Hot Standby Swap
Hot Standby Swap during Remote Connection Request
Scanning
Service
Publish
Subscribe
176
Maintenance
Maintenance
Health of a Hot Standby System
Health Messages
Verifying Health of a Hot Standby System
Recognizing
Additional Checks
Or equipment damage
Safety
Avoid Damage to Application I/O Devices
Errors
Startup Errors
Troubleshooting
Communications Errors
Interface Errors
LEDs
Board Level Error 140 CHS 110
Board Level Errors
Replace the faulty CHS 110 module
10.3 Failures
Main
Detecting Failures in a Hot Standby System
Components
Backplane
Detecting Failures in the Primary Backplane
Standby module and RIO head to the chart below
Controller CHS RIO Head Failure Type Description
Controller CHS RIO Head Failure Description
Detecting Failures in the Standby Backplane
191
Replacement
Replacing a Hot Standby Module
Replacement
Primary Backplane Hazard
Battery Hazard
Changing the Program and Performing a Program Update
Updating
Standby Ogic
Standby controller Off Line
Program Change Hazard
Before 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 executives
Standby is Running
Updating PLC System Executives in an IEC Hsby System
Forcing a Switchover
Testing
Switchover Forcing a Manually
Take the following steps to force a switchover manually
After Taking the Primary Controller Offline
Primary Standby
Bringing the Original Primary Unit Back Online
Register, p
Through
Specifications
Specifications for CHS 110 Hot Standby
Specifications for CHS 110 Hot Standby
Specifications for CHS 110 Hot Standby
At a Glance
Appendices
Included here
Appendix contains the following chapters
Appendices
Purpose What’s in this Chapter?
Com Act Error Patterns
CHS 110 Error
CHS 110 Hot Standby Module Error Patterns
Number Blinks Code Error
Patterns
Error Patterns The following table shows error patterns
CRP Remote I/O Head Processor Error Patterns
Number Code Error Blinks
212
Fiber Optic Cable Guide
Recommen
Connectors
Dations
Suggested Tools include
Other Tools
Other Tools
ProWORX Nxt Hot Standby Configuration Extension
ProWORX Nxt Configuration
Menu and select Hsby Extension from the Tree Control
Hot Standby Qua
Dialog Screen
Functions
Field
Hot Standby Quantum dialog screen
Parameters of a Quantum Hot Standby system
Status Registers Dialog screen
Initial Command Register
Status Register
Registers dialog screen
Offline state
Index Numerics
Index
Automatic, 108 swapping addresses
226