Allen-Bradley 1756-RM2 - EtherNetIP Networks with Redundant Systems

Rockwell Automation Publication 1756-UM535D-EN-P - November 2012 35
Design an Enhanced Redundancy System Chapter 2
EtherNet/IP Networks with
Redundant Systems
The use of EtherNet/IP networks in an enhanced redundancy system is primarily
dependent on your system revision.
For more information on using an EtherNet/IP network in your enhanced
redundancy system, see Chapter 5
, Configure the ControlNet Network on
page 93.
EtherNet/IP Network Features in an Enhanced Redundancy System,
Revision 19.052 or Later
In an enhanced redundancy system, revision 19.052 or later, you can execute
these tasks on an EtherNet/IP network:
• Use 1756-EN2TR modules
• Connect to remote I/O modules
• Connect to 1715 Redundant I/O systems
• Use produce/consume tags
• Connect to a Device-level Ring networks
• Use CIP Sync technology
The rest of the topics in this section apply to all enhanced redundancy systems.
IMPORTANT
A remote chassis can be accessed over an EtherNet/IP network using any
EtherNet/IP module that works in a nonredundant chassis with no additional
firmware requirement with the following exception. If the remote chassis
contains a controller consuming a tag produced in the RCP, it can only consume
the tag with the required firmware revisions listed in Tabl e 7
.
Table 7 - EtherNet/IP Communication Modules in Remote Chassis Minimum Firmware
Requirements
EtherNet/IP Communication Module in Remote
Chassis
Minimum Firmware Revision
1756-EN2F 4.003
1756-EN2T
4.002
1756-EN2TR
1756-EN3TR
1756-ENBT 6.001
1768-ENBT 4.001
1769-L2x
19.011
1769-L3xE
1788-ENBT 3.001