Product Details
Overview
The Allen-Bradley 1756-CNBR is a high-performance ControlLogix communication module designed to provide reliable network connectivity for ControlLogix systems. This module supports multiple protocols and ensures seamless integration with distributed I/O networks, offering robust data transfer and efficient control communication.
Key Features
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Supports Ethernet/IP and ControlNet protocols
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Facilitates high-speed data exchange across ControlLogix networks
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Compact design suitable for ControlLogix chassis
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Ensures system reliability and reduces downtime in industrial applications
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Compatible with a wide range of Allen-Bradley controllers
Technical Specifications
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Manufacturer: Allen-Bradley / Rockwell Automation
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Model Number: 1756-CNBR
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Product Type: ControlLogix Communication Module
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Product Line: ControlLogix
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Voltage: 5.0 V DC backplane
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Current Consumption: 0.3 A typical @ 5V DC
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Network Protocols: Ethernet/IP, ControlNet
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Communication Ports: 2 RJ45 connectors for network integration
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Module Type: Communication/Interface
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Dimensions (HxWxD): 12.7 x 3.5 x 10.2 cm (5 x 1.38 x 4 in)
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Weight: 0.25 kg (0.55 lbs)
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Operating Temperature: 0–60°C (32–140°F)
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Storage Temperature: -40–85°C (-40–185°F)
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Compatible Controllers: ControlLogix L-Series and R-Series
Applications
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Network communication for ControlLogix systems
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Integration with distributed I/O and remote devices
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Reliable data transfer for industrial automation networks
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Suitable for redundant and multi-protocol environments
FAQ
Q1: Which protocols does 1756-CNBR support?
A1: This module supports Ethernet/IP and ControlNet for seamless ControlLogix integration.
Q2: Can it be installed in any ControlLogix chassis?
A2: Yes, it fits standard ControlLogix L-Series and R-Series chassis.
Q3: What is the maximum network distance supported?
A3: Maximum distance depends on cabling and network configuration, typically up to 100 meters per Ethernet segment.
Q4: Is it compatible with Series B controllers?
A4: No, it is designed for L-Series and R-Series ControlLogix systems only.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
Redundant Automation Systems: Ensuring Continuous Uptime in Critical Control Infrastructure
System reliability directly determines operational profitability across high stakes process industries. Modern industrial automation platforms must eliminate single points of failure to prevent catastrophic shutdowns. Deploying fault tolerant architecture safeguards complex facilities against unexpected hardware glitches, network disruptions, and maintenance outages.
Understanding Types of Noise in Electronic Circuits and Control Systems
Signal integrity directly determines measurement accuracy and loop stability across industrial automation environments. Electronic noise introduces unwanted stochastic interference into analog loops, sensor feedback lines, and digital fieldbus networks. Understanding how intrinsic electronic noise and external electromagnetic interference manifest allows control engineers to optimize signal conditioning and shield sensitive instrumentation effectively.
Why 24V DC Power Supplies Standardize Modern Industrial Automation
Industrial control cabinets worldwide rely on 24V DC as the universal power standard for field instrumentation, sensors, and controllers. Walk into any manufacturing plant, and you will find PLCs, human-machine interfaces (HMIs), and smart actuators running on extra-low voltage DC. Standardizing on 24V DC enhances operational safety, lowers cabinet footprint, and maintains steady control performance across factory networks.