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Last Update November 2025
ControlLogix 5590 High Availability Systems
Preface
Additional Resources
Additional Resources
ControlLogix 5590 High Availability Systems
Supported Features
Supported Features
Restrictions
Restrictions
Security Considerations
Security Considerations
System Components
Redundant Chassis Pair
Redundant Chassis Pair
I/O Modules
I/O Modules
HMI
HMI
Optional Software
Optional Software
Other Communication Networks
Other Communication Networks
Redundant Chassis Operation
Qualification and Synchronization
Qualification and Synchronization
Controller Switchovers
Controller Switchovers
Fiber Channel Operation
Fiber Channel Operation
Communication to I/O
Communication to I/O
Logix SIS Considerations
SIL Requirements
SIL Requirements
Safety Task Requirements
Safety Task Requirements
Safety Task Execution
Safety Task Execution
Safety Function Muting
Safety Function Muting
Safety Signature Validation in Logix SIS
Safety Signature Validation in Logix SIS
Recommended Safety I/O Settings
Recommended Safety I/O Settings
Logix SIS Safety Data
Logix SIS Safety Data
Set Up a Redundant Chassis Pair
Download Redundancy Firmware
Download Redundancy Firmware
Install Redundancy Firmware
Install Redundancy Firmware
Obtain the Redundancy Module Configuration Tool
Obtain the Redundancy Module Configuration Tool
Install the RMCT
Install the RMCT
Access the FactoryTalk Linx RMCT
Access the FactoryTalk Linx RMCT
Identify the FactoryTalk Linx RMCT Version
Identify the FactoryTalk Linx RMCT Version
Install Redundant Chassis Components
Install Redundant Chassis Components
Convert a Standalone Chassis to a Redundant Chassis Pair
Convert a Standalone Chassis to a Redundant Chassis Pair
Update Firmware
Update Firmware
Identify the Primary and Secondary Chassis
Identify the Primary and Secondary Chassis
Verify Qualification and Synchronization
Verify Qualification and Synchronization
Download Your Application to the Primary Controller
Download Your Application to the Primary Controller
Reset a Redundancy Module
Reset a Redundancy Module
Remove a Redundant Module
Remove a Redundant Module
Replace a Redundant Module
Replace a Redundant Module
Configure Redundancy Modules
Protection Mode
Protection Mode
Enter Redundancy Module Identification Information
Enter Redundancy Module Identification Information
Configure Redundancy Module Options
Configure Redundancy Module Options
Set the Redundancy Module Date and Time
Set the Redundancy Module Date and Time
Reset Factory Defaults
Reset Factory Defaults
Disable or Re-enable SFP Fiber Ports
Disable or Re-enable SFP Fiber Ports
Configure the EtherNet/IP Network
Requested Packet Interval (RPI)
Requested Packet Interval (RPI)
Concurrent Communication
Concurrent Communication
Produced and Consumed Tags
Produced and Consumed Tags
Static Versus Dynamic IP Addresses
Static Versus Dynamic IP Addresses
IP Address Swapping
IP Address Swapping
Set Communication Module IP Addresses
Set Communication Module IP Addresses
Reset an IP Address
Reset an IP Address
Half/Full Duplex Settings
Half/Full Duplex Settings
Device Level Ring (DLR)
Device Level Ring (DLR)
Parallel Redundancy Protocol (PRP)
Parallel Redundancy Protocol (PRP)
CIP Sync Time Synchronization
CIP Sync Time Synchronization
Configure the Primary Controller
Enable Redundancy
Enable Redundancy
Configure Front Port Crossload Mode
Configure Front Port Crossload Mode
Configure Front Port Crossload Security
Configure Front Port Crossload Security
Configure Logix SIS Requirements
Configure Logix SIS Requirements
Configure Advanced Controller Settings
Configure Advanced Controller Settings
Enable Time Synchronization
Enable Time Synchronization
Programming Best Practices
Crossloads, Synchronization, and Switchovers for Standard Tasks
Crossloads, Synchronization, and Switchovers for Standard Tasks
Optimize Performance
Optimize Performance
Maintain Data Integrity
Maintain Data Integrity
Conduct a Test Switchover
Conduct a Test Switchover
Program Logic to Run After a Switchover
Program Logic to Run After a Switchover
Download the Project
Download the Project
Store a Project to the Memory Card
Store a Project to the Memory Card
Online Edits
Online Edits
Calculate RPI Timeout for Standard I/O
Calculate RPI Timeout for Standard I/O
Initiate Redundancy and System Update Commands
Initiate Redundancy Commands in the RMCT
Initiate Redundancy Commands in the RMCT
Initiate Redundancy Commands with MSG Instructions
Initiate Redundancy Commands with MSG Instructions
Initiate System Update Commands in the RMCT
Initiate System Update Commands in the RMCT
Monitor and Maintain Redundancy
Reference the Controller Log
Reference the Controller Log
Track Changes to Components
Track Changes to Components
Use Logic to Monitor Status
Use Logic to Monitor Status
Monitor Communication Module Statistics
Monitor Communication Module Statistics
Understand Temperature Monitoring and Fault Behavior
Understand Temperature Monitoring and Fault Behavior
Troubleshoot Redundancy
View Diagnostic Information in the Logix Designer Application
View Diagnostic Information in the Logix Designer Application
View the Synchronization Log
View the Synchronization Log
View Module-level Synchronization Status
View Module-level Synchronization Status
View the Lock for Update Logs
View the Lock for Update Logs
View the Event Log
View the Event Log
Redundancy Module Faults
Redundancy Module Faults
Logix SIS Safety Faults
Logix SIS Safety Faults
Redundant Controller Major Fault Messages
Redundant Controller Major Fault Messages
Access Controller Front Port Diagnostics
Access Controller Front Port Diagnostics
Online Firmware Updates
Prepare for an Online Firmware Update
Prepare for an Online Firmware Update
Update Redundancy System Firmware
Update Redundancy System Firmware
1756-RM3 Status Indicators
Redundancy Object Attributes
Checklists for Redundancy Systems
Checklists for Logix SIS Applications
Checklist for the Controller System
Checklist for the Controller System
Checklist for Safety Inputs
Checklist for Safety Inputs
Checklist for Safety Outputs
Checklist for Safety Outputs
Checklist to Develop a Safety Application Program
Checklist to Develop a Safety Application Program
Module Replacement
Perform a Direct Module Replacement in the Secondary Chassis
Perform a Direct Module Replacement in the Secondary Chassis
Replace Communication Modules with a New Series
Replace Communication Modules with a New Series
Replace Redundancy Modules with 1756-RM3 Modules
Replace Redundancy Modules with 1756-RM3 Modules
Convert from a Non-redundant System
Update the Configuration in the Logix Designer Application for Redundancy
Update the Configuration in the Logix Designer Application for Redundancy
Replace Local I/O Tags
Replace Local I/O Tags
Replace Aliases to Local I/O Tags
Replace Aliases to Local I/O Tags
Remove Other Modules from the Controller Chassis
Remove Other Modules from the Controller Chassis
Set Up Identical Chassis
Set Up Identical Chassis
Redundancy Object Attributes
Checklists for Redundancy Systems
Checklists for Logix SIS Applications
Checklist for the Controller System
Checklist for the Controller System
Checklist for Safety Inputs
Checklist for Safety Inputs
Checklist for Safety Outputs
Checklist for Safety Outputs
Checklist to Develop a Safety Application Program
Checklist to Develop a Safety Application Program
Module Replacement
Perform a Direct Module Replacement in the Secondary Chassis
Perform a Direct Module Replacement in the Secondary Chassis
Replace Communication Modules with a New Series
Replace Communication Modules with a New Series
Replace Redundancy Modules with 1756-RM3 Modules
Replace Redundancy Modules with 1756-RM3 Modules
Convert from a Non-redundant System
Update the Configuration in the Logix Designer Application for Redundancy
Update the Configuration in the Logix Designer Application for Redundancy
Replace Local I/O Tags
Replace Local I/O Tags
Replace Aliases to Local I/O Tags
Replace Aliases to Local I/O Tags
Remove Other Modules from the Controller Chassis
Remove Other Modules from the Controller Chassis
Set Up Identical Chassis
Set Up Identical Chassis
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