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1756-CN2RXT

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Allen-Bradley 1756-CN2RXT is an XT-rated ControlNet redundant interface module for ControlLogix systems requiring deterministic ControlNet communication in extended-temperature environments.
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Technical specifications for 1756-CN2RXT

  • Manufacturer:
    Allen-Bradley
  • Part Number:
    1756-CN2RXT
  • Product Family:
    CompactLogix
  • Product Type:
    ControlNet Redundant Interface Module, Logix XT
  • Stock:
    1
  • Platform:
    ControlLogix XT
  • Protocol:
    ControlNet
  • Interface role:
    redundant
  • Rated connections:
    100
  • Operating temperature:
    -25 - 70 ℃
  • Storage temperature:
    -40- 85 ℃
  • Humidity:
    5 - 95% noncondensing
  • Backplane current:
    1.3 A at 5.1 V DC
  • Dimensions:
    3.455 × 14.520 × 13.963 cm
  • Weight:
    0.293 kg
  • Tariff Code:
    8473309000
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Redundancy XT Environment ControlNet Design Application
  • ControlLogix XT ControlNet redundant interface module
  • Published for 100 ControlNet connections
  • Designed for the Logix XT platform

Allen-Bradley 1756-CN2RXT provides a redundant ControlNet interface role within a correctly engineered ControlLogix XT system.

The module must be selected with the complete controller, chassis, media, and ControlNet configuration in mind.

Confirm the installed Series, firmware, and environmental requirements before replacing an interface module.

Availability: Exact condition, stock, price, and shipping time are confirmed during quotation.

Allen-Bradley 1756-CN2RXT ControlNet-XT Redundant Communication Module Manuals, Datasheets, Links

Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

  • Use only within a documented redundant architecture
  • Confirm the redundant controller and chassis arrangement
  • Verify configuration before placing a replacement in service
  • Operating temperature: -25–70 °C
  • Storage temperature: -40–85 °C
  • Humidity: 5–95% noncondensing
  • Use the documented ControlNet schedule
  • Verify node and ownership configuration
  • Maintain approved network-media practices
  • Redundant ControlLogix XT control systems
  • Deterministic ControlNet communication architectures
  • Industrial installations with XT environmental requirements
Description

1756-CN2RXT is a ControlLogix XT ControlNet redundant interface module. Rockwell identifies it as a 100-connection interface for the Logix XT platform.

Published XT environmental data includes a -25–70 °C operating range, -40–85 °C storage range, and 5–95% noncondensing relative humidity.

Use the exact ControlNet design, redundancy architecture, firmware, and environmental documentation for the installed system. The module does not make an incomplete network design redundant by itself.

Alternative Names
1756-CN2RXT 1756 CN2RXT 1756CN2RXT Allen-Bradley 1756-CN2RXT Rockwell Automation 1756-CN2RXT ControlLogix XT 1756-CN2RXT
Technical notes
1756-CN2RXT is an XT ControlNet redundant interface; verify the entire redundant ControlLogix architecture, Series, firmware, and network configuration before replacement.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Does Allen-Bradley 1756-CN2RXT make every ControlNet system redundant?
No. Redundancy depends on the complete controller, chassis, network-media, configuration, and application architecture.
Can Allen-Bradley 1756-CN2RXT be used in a standard-temperature cabinet?
It can be selected for its documented XT capability, but verify all connected modules, chassis, power supplies, and certification requirements separately.
What must match before replacing Allen-Bradley 1756-CN2RXT?
Match the module catalog number, ControlNet design, controller redundancy arrangement, Series, firmware, and approved system configuration.
Why may Allen-Bradley 1756-CN2RXT show healthy LEDs while control data is unavailable?
Physical media can be healthy while the scheduled network, node configuration, ownership, or controller application is inconsistent.
Is Allen-Bradley 1756-CN2RXT a replacement for a non-XT ControlNet module?
Do not assume a direct substitution. Verify the specific controller, chassis, firmware, certifications, and redundant-system design.
Does Allen-Bradley 1756-CN2RXT require a ControlNet schedule?
ControlNet operation must use the documented configuration and schedule for the installed system; replacement hardware alone does not recreate that project.
What should be confirmed for an Allen-Bradley 1756-CN2RXT quotation?
Confirm the complete catalog number, Series, condition, firmware, XT environmental need, and whether redundancy support is required.