Rockwell Automation 1756-RMxx ControlLogix Enhanced Redundancy System User Manual User Manual
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Rockwell Automation Publication 1756-UM535D-EN-P - November 2012
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Table of Contents
About Enhanced Redundancy
Systems
Features of the ControlLogix Enhanced Redundancy System . . . . . . . . 16
Enhanced Redundancy System Components . . . . . . . . . . . . . . . . . . . . . . . 17
I/O Modules in Enhanced Redundancy Systems . . . . . . . . . . . . . . . . 18
Enhanced Redundancy System Operations . . . . . . . . . . . . . . . . . . . . . . . . . 19
System Qualification and Synchronization . . . . . . . . . . . . . . . . . . . . . 19
Design an Enhanced Redundancy
System
Components of an Enhanced Redundancy System . . . . . . . . . . . . . . . . . . 24
Controllers in Redundant Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Redundancy Modules in Redundant Chassis. . . . . . . . . . . . . . . . . . . . 31
Communication Modules in Redundant Chassis. . . . . . . . . . . . . . . . 32
Power Supplies and Redundant Power Supplies in Enhanced
EtherNet/IP Networks with Redundant Systems . . . . . . . . . . . . . . . . . . . 35
EtherNet/IP Network Features in an Enhanced
Redundancy System, Revision 19.052 or Later . . . . . . . . . . . . . . . . . . 35
Possible Communication Delays on EtherNet/IP Networks . . . . . 36
ControlNet Networks with Redundant Systems . . . . . . . . . . . . . . . . . . . . 38
ControlNet Network Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Redundant ControlNet Media . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Other Communication Networks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
1715 Redundant I/O Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
HMI Connected via an EtherNet/IP Network. . . . . . . . . . . . . . . . . . 46
HMI Connected via a ControlNet Network. . . . . . . . . . . . . . . . . . . . 47
Install the Enhanced Redundancy
System
Enhanced Redundancy System Quick Start . . . . . . . . . . . . . . . . . . . . . 51
Install an Enhanced Redundancy System . . . . . . . . . . . . . . . . . . . . . . . . . . . 53