Rockwell Automation 1756-RMxx ControlLogix Enhanced Redundancy System User Manual - Manual (Page 242)

242 Rockwell Automation Publication 1756-UM535D-EN-P - November 2012
Appendix C Upgrade from a Standard Redundancy System or to Another Enhanced Redundancy System
Replace Communication Modules
You must replace all communication modules when upgrading to any enhanced
redundancy system revision. You must use enhanced communication modules in
an enhanced redundancy system.
This table describes which controllers are available for system upgrades.
Replacing a 1756-EWEB Module
The 1756-EWEB communication module offers functionality that is not
available on other EtherNet/IP communication modules. When you upgrade
from a nonredundant system to an enhanced redundant system, your application
loses functionality that is available only on the 1756-EWEB communication
module.
These are examples of functionality no longer available after the conversion from
a standard redundancy system to an enhanced redundancy system:
• Simple Network Time Protocol (SNTP) Client
• Web pages
You must account for this lost functionality in your RSLogix 5000 software
project.
Updating Communication Settings
Make sure you set all network settings, for example, node addresses or IP
addresses, required to your application in the new communication modules.
For more information on specific communication module series and firmware
revision levels required in an enhanced redundancy system, see http://
www.rockwellautomation.com/support/americas/index_en.html.
Communication Modules Available in
Standard Redundancy Systems
Communication Modules Available in
Enhanced Redundancy Systems
1756-CNB/D
1756-CNBR/D
1756-CNB/E
1756-CNBR/E All revisions
1756-CN2/B
1756-CN2R/B
1756-CN2RXT/B
1756-ENBT (any series)
1756-EWEB (any series) All revisions
1756-EN2T (any series)
1756-EN2TXT (any series)
Revision 19.052 or later only
1756-EN2TR (any series)
Revision 20.054 or later only
1756-EN2F (any series)