Publication 1756-UM523F-EN-P - December 2006
ControlLogix Redundancy System Overview 23
EtherNet/IP Modules 1756-ENBT or 1756-EWEB modules:
• Which modules do you want to use?
• If 1756-ENBT, catalog revision greater than or equal to E01 (E01, E02, …, F01). See the
label on the side of the module or its box.
• If 1756-EWEB, any catalog revision.
• Up to 2 EtherNet/IP modules in each redundant chassis, within these limits.
29, 38
Redundant Chassis Configuration (Continued)
Parameter Criteria Page
If you have Use up to
1 ControlNet module 2 EtherNet/IP modules
2 ControlNet modules 2 EtherNet/IP modules
3 ControlNet modules 2 EtherNet/IP modules
4 ControlNet modules 1 EtherNet/IP module
5 ControlNet modules No EtherNet/IP modules
Do not use more than 5 ControlNet
modules.
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