1768-CNBR Rockwell Automation ControlNet Module CompactLogix Series

Manufacturer: Allen-Bradley
Product No.: 1768-CNBR
Condition： In stock
Product Type: ControlNet Bridge Module
Product Origin: USA
Payment: T/T, Western Union
Weight: 293g
Shipping port: Xiamen
Warranty: 12 months

Quantity

Selected quantity: 1

Estimate delivery times: 12-26 days (International), 3-6 days (United States).

Return within 30 days of purchase. Duties & taxes are non-refundable.

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Engineering Architecture & System Overview

The 1768-CNBR unit functions as a high-performance ControlNet bridge interface designed by Allen-Bradley. Built explicitly for the CompactLogix ecosystem, this ControlNet Bridge Module enables deterministic, high-throughput network integration for demanding automation architectures.

Core Technical Specifications

Review the comprehensive parameters of the 1768-CNBR unit below:

Manufacturer & Brand: Rockwell Automation / Allen-Bradley
Product Line & Type: CompactLogix / ControlNet Bridge Module
Catalog Number: 1768-CNBR (Series A and B)
Communication Rate & Connections: 5 Mbps speed supporting up to 48 Logix communication links
Network Capacity: Up to 99 ControlNet nodes per network
Electrical Ratings: Draws 1.0 Amps at 5.2 Volts DC; power dissipation of 5.14W (17.5 BTU/hour)
Isolation Rating: 30 Volts isolation tested at 500 Volts AC for 60 seconds
Physical Dimensions & Weight: 132 x 56.7 x 105.1 mm (5.20 x 2.23 x 4.12 inches); approx. 0.293 kg (0.64 lbs)
Mounting & Cabling: Single-slot width; DIN rail or panel mount using M4/#8 screws; RG6 quad shield coaxial cable
Ports: Two ControlNet BNC ports and one ControlNet RJ45 programming port

Target Equipment & Industrial Application Scenarios

Engineered for mission-critical architecture, the 1768-CNBR module thrives in distributed control networks requiring strict data repeatability. Typical deployments include redundancy control systems, high-speed media data highways, large-scale discrete manufacturing lines, and continuous process facilities utilizing CompactLogix controllers where network downtime is unacceptable.

Diagnostic Framework & Operational Monitoring

The module features onboard status indicators and port interfaces that allow engineers to monitor network traffic and node health in real time. Through direct PC connection via the RJ45 port and ControlNet BNC diagnostic tools, technicians can quickly isolate communication faults, check token-ring integrity, and verify node drop limits.

Global PLC Spare HUB's Insight

Our industrial hardware specialists emphasize that ControlNet architectures demand strict adherence to cable attenuation limits and proper grounding to maintain 5 Mbps deterministic performance.

Field Experience Example: A continuous steel rolling plant suffered from sporadic packet drops on an aging network bus. Replacing a failing bridge with the 1768-CNBR module and re-terminating the RG6 quad shield coaxial lines restored stable token rotation and eliminated loop timeouts.

Logistics, Global Fulfillment & Warranty Terms

Shipping Carriers: Express global delivery via FedEx, UPS, and DHL.
Processing Window: Guaranteed dispatch within 24 to 48 hours of order confirmation.
Package Contents: One 1768-CNBR communication module and factory documentation.
Warranty Policy: Fully backed by a 12-month operational performance warranty.

Frequently Asked Questions & Expert Buying Guide

Q: What is the maximum node capacity supported by the 1768-CNBR module?

A: The module supports up to 99 individual ControlNet nodes within a single network structure.

Q: How does the module handle physical installation in a control cabinet?

A: It requires a single slot width and can be secured using either standard DIN rails or direct panel mounting via M4 or #8 screws.

Q: What cable type is recommended for optimal network communication?

A: Engineers should use an RG6 quad shield coaxial cable along with proper BNC connectors to ensure signal integrity at 5 Mbps.

Q: What key factors should I evaluate when purchasing this communication bridge?

A: Verify your controller's compatibility within the CompactLogix family, calculate your total power supply load (accounting for the 1.0 Amp draw at 5.2V DC), and confirm your network node count requirements.

Q: Why is thermal dissipation an important consideration for this module?

A: The unit dissipates 5.14W (17.5 BTU/hour); proper enclosure spacing and cabinet ventilation must be maintained to prevent thermal degradation over long operational cycles.

12-Month Comprehensive Warranty

Every part supplied by Global PLC Spare Hub is covered by a 12-month warranty from the date of invoice.

Coverage: Functional defects and hardware failures under normal operating conditions.
Commitment: We provide immediate repair, replacement, or a full refund for any verified defective components to minimize your operational downtime.

Returns & Exchange Policy

We offer a 30-day return policy to ensure you receive the exact part your system requires.

Eligibility: Returns are accepted for uninstalled items in their original, factory-sealed packaging.
RMA Process: Please contact our support team to obtain a Return Merchandise Authorization (RMA) number before shipping.
Fast Processing: Refunds or exchanges are processed within 3–5 business days after the returned item passes our technical inspection.

Need Technical Assistance?Not sure if this part is compatible with your system? [Consult our Engineers] before purchasing to ensure 100% compatibility.