ControlNet Communication Modules

This table lists the available
ControlNet®
 modules and their primary features.
ControlNet Modules
Module
System
Description
1756-CN2
1756-CN2K
ControlLogix®
GuardLogix®
  • Performs the same functions as a 1756-CNB module.
  • Provides twice the capacity for more demanding applications.
1756-CN2R
1756-CN2RK
1756-CN2RXT
ControlLogix®
GuardLogix®
  • Performs the same functions as a 1756-CN2 module.
  • Supports redundant
    ControlLogix®
     media.
  • 1756-CN2RXT operates in extreme environments with -25…+70 °C (-13…+158 °F) temperatures.
ControlLogix®
  • Controls I/O modules.
  • Communicates with other
    ControlLogix®
     devices (messages).
  • Shares data with other Logix 5000® series controllers (produce/consume).
  • Bridges
    ControlLogix®
     links to route messages to devices on other networks.
  • Standard connections only.
ControlLogix®
  • Performs the same functions as a 1756-CNB module.
  • Supports redundant ControlNet media.
  • Standard connections only.
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