13 Publication 1756-UM523F-EN-P - December 2006
Chapter
1
ControlLogix Redundancy System Overview
Introduction
This chapter provides an overview of the ControlLogix redundancy
system, including commonly used terms. It also answers some
common questions about a ControlLogix redundancy system.
Topic Page
About the Main Parts of a Redundant System 14
Firmware Combinations That Make Up a Redundant System 14
Primary Chassis 15
Switching from One Controller to Another 15
Network Access Port 16
Bump in Outputs During a Switchover 16
Keep the Second Controller Up to Date 16
Making Online Edits 18
Increasing Scan Time 18
Network Addresses During a Switchover 18
Quick Start Checklists 21
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