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Allen-Bradley 1756-CNBR
by Allen-Bradley
Read verified buyer reviews ↓OverviewElevate your industrial automation and control systems with the Allen-Bradley 1756-CNBR ControlLogix EtherNet/IP Bridge. This essential communication interface is engineered for seamless integration and high-performance data exchange within demanding industrial environments. Designed specifically for ControlLogix systems, the 1756-CNBR provides a critical link, facilitating robust and reliable communication with EtherNet/IP devices. With its single-port configuration, supporting blistering speeds of 10/100/1000 Mbps, this bridge ensures rapid and efficient data transfer, minimizing latency and maximizing system responsiveness. Its capability to operate across a broad range of speeds offers unparalleled flexibility for integrating into diverse network architectures, making it an indispensable component for applications where secure, high-speed Ethernet communication is paramount. The 1756-CNBR is not just about speed; it's about creating a resilient and interconnected ecosystem for your automation infrastructure. As a genuine Allen-Bradley product, it guarantees compatibility and optimal performance within your existing or new ControlLogix setup. Its robust construction and intelligent design ensure continuous, reliable operation, even in the most challenging industrial conditions. From factory floors to complex process control setups, this EtherNet/IP Bridge stands as a testament to Allen-Bradley's commitment to quality, performance, and innovation in industrial networking.Key Features High-Performance 1-Port EtherNet/IP Bridge: Establishes a crucial, high-speed communication pathway between ControlLogix PLCs and a wide array of EtherNet/IP compliant devices, ensuring efficient data exchange. Versatile 10/100/1000 Mbps Data Transfer: Supports multiple Ethernet speeds, providing exceptional flexibility and scalability to meet the demands of various industrial network topologies and future expansion needs. Seamless ControlLogix System Integration: Engineered for effortless and rapid integration into existing or new ControlLogix automation platforms, significantly reducing installation and configuration time. Industrial-Grade Durability: Constructed to withstand harsh industrial operating conditions, guaranteeing consistent and reliable performance in environments with temperature fluctuations, vibration, and electrical noise. Optimized for Network Reliability: Facilitates stable and secure EtherNet/IP communications, critical for maintaining operational integrity and minimizing downtime in complex automation systems. Compact and Space-Saving Design: Its efficient footprint allows for easy installation within control panels, cabinets, or machinery setups where space is often at a premium. Technical Specifications Model Number: 1756-CNBR Brand: Allen-Bradley Product Type: ControlLogix EtherNet/IP Bridge Communication Protocol: EtherNet/IP Port Configuration: 1-Port Ethernet Speed Support: 10/100/1000 Mbps (auto-negotiating) Power Supply: 24V DC (typically supplied by the ControlLogix chassis) Mounting Options: Designed for DIN rail or panel mounting within ControlLogix chassis Operating Temperature: 0°C to 60°C (32°F to 140°F) Storage Temperature: -40°C to 85°C (185°F) Humidity: 5-95% non-condensing Weight: Approximately 0.4 kg (0.88 lbs) Applications Advanced Industrial Automation Systems: Essential for building intelligent manufacturing and process control systems, linking ControlLogix controllers to a diverse range of EtherNet/IP field devices such as drives, sensors, and I/O modules. Integrated Control Panels and Cabinets: Provides a robust communication backbone within industrial control panels, enabling efficient data flow between various components and the ControlLogix backplane. Manufacturing Execution Systems (MES) Integration: Facilitates seamless data exchange between the plant floor and higher-level MES for real-time production monitoring, data acquisition, and operational reporting. Robotics and Motion Control: Delivers dependable, low-latency communication crucial for precision robotics, advanced motion control, and synchronized multi-axis systems, enhancing overall machine performance and safety. Why Choose the Allen-Bradley 1756-CNBR?Choosing the Allen-Bradley 1756-CNBR for your automation needs means investing in reliability, performance, and seamless integration. This EtherNet/IP Bridge is specifically engineered to meet the rigorous demands of industrial environments, ensuring your ControlLogix system operates at peak efficiency. Its high-speed communication capabilities and robust design minimize downtime and maximize productivity. With genuine Allen-Bradley quality, you can trust in long-term performance and compatibility with your existing infrastructure.Order NowUpgrade your industrial communication infrastructure today with the Allen-Bradley 1756-CNBR ControlLogix EtherNet/IP Bridge. Contact us for pricing and availability.FAQWhat is the primary function of the Allen-Bradley 1756-CNBR?The 1756-CNBR serves as a high-performance communication bridge, connecting ControlLogix PLCs with EtherNet/IP compliant devices to ensure efficient and reliable data exchange in industrial automation systems.What data transfer speeds does the 1756-CNBR support?This module supports versatile data transfer speeds of 10/100/1000 Mbps, offering exceptional flexibility for integration into various network topologies.Is this module difficult to integrate into an existing ControlLogix system?No, the 1756-CNBR is designed for effortless and rapid integration into both new and existing ControlLogix automation platforms, significantly reducing installation and configuration time.
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Allen-Bradley 1756-CNBR
Overview
This is a genuine Allen-Bradley component from the ControlLogix family. PalmPartsSolution stocks it in new, refurbished, and surplus condition with tested warranty and same-day shipping on in-stock units.
Whether you are sourcing a like-for-like replacement for an existing installation, an emergency spare to keep a line running, or a qualified part for a new build, our team can confirm availability, revision, and lead time before you order.
Key Features
- Genuine Allen-Bradley catalog part
- Tested before shipment
- Backed by PalmPartsSolution warranty
- Cross-reference and revision assistance available
- Compatible with the broader Allen-Bradley automation ecosystem
- Engineered to integrate inside ControlLogix installations
Compatibility
When ordering, match the full catalog/part number, hardware revision, and firmware revision called out by your Allen-Bradley equipment. Where applicable, confirm:
- Input/output voltage and current rating
- Communication protocol and network role
- Mounting form factor and footprint
- Operating temperature, humidity, and IP rating
- Required certifications (UL, CE, ATEX, marine, etc.)
Not sure which revision you need? Send us the catalog number on the nameplate and we will confirm the correct match.
Replacement Information
Three ways to source this part through PalmPartsSolution:
- Exact replacement — same Allen-Bradley catalog number, new or refurbished, tested and warrantied
- Form-fit-function equivalent — alternate revision or build that drops in without code changes
- Engineered migration — current-generation Allen-Bradley platform with documented conversion notes for the ControlLogix family
Contact our engineering team if you need help choosing between these tracks.
Technical Specifications
- Model Number: 1756-CNBR
- Brand: Allen-Bradley
- Product Type: ControlLogix EtherNet/IP Bridge
- Communication Protocol: EtherNet/IP
- Port Configuration: 1-Port
- Ethernet Speed Support: 10/100/1000 Mbps (auto-negotiating)
- Power Supply: 24V DC (typically supplied by the ControlLogix chassis)
- Mounting Options: Designed for DIN rail or panel mounting within ControlLogix chassis
- Operating Temperature: 0°C to 60°C (32°F to 140°F)
- Storage Temperature: -40°C to 85°C (185°F)
- Humidity: 5-95% non-condensing
- Weight: Approximately 0.4 kg (0.88 lbs)
Applications
- Advanced Industrial Automation Systems: Essential for building intelligent manufacturing and process control systems, linking ControlLogix controllers to a diverse range of EtherNet/IP field devices such as drives, sensors, and I/O modules.
- Integrated Control Panels and Cabinets: Provides a robust communication backbone within industrial control panels, enabling efficient data flow between various components and the ControlLogix backplane.
- Manufacturing Execution Systems (MES) Integration: Facilitates seamless data exchange between the plant floor and higher-level MES for real-time production monitoring, data acquisition, and operational reporting.
- Robotics and Motion Control: Delivers dependable, low-latency communication crucial for precision robotics, advanced motion control, and synchronized multi-axis systems, enhancing overall machine performance and safety.
Why Choose the 1756-CNBR?
Choosing the Allen-Bradley 1756-CNBR for your automation needs means investing in reliability, performance, and seamless integration. This EtherNet/IP Bridge is specifically engineered to meet the rigorous demands of industrial environments, ensuring your ControlLogix system operates at peak efficiency. Its high-speed communication capabilities and robust design minimize downtime and maximize productivity. With genuine Allen-Bradley quality, you can trust in long-term performance and compatibility with your existing infrastructure.
Availability & Shipping
- ▸In stock: 1756-CNBR ready for immediate dispatch from our Florida warehouse.
- ▸Free USA shipping: FedEx Priority (2–5 business days) and UPS Ground (3–5 business days). Expedited options available at checkout.
- ▸Worldwide delivery: FedEx International Priority (1–5 days), UPS International Priority (3–5 days), and USPS International (5–10 days) — rates calculated at checkout.
- ▸Bulk pricing: Volume discounts on request — contact our sales team for quantity quotes.
- ▸Buy with confidence: Every 1756-CNBR ships with a 1-Year PALM Parts warranty and a 30-day return window.
Frequently Asked Questions — Allen-Bradley
Machine down? We ship parts the same day.
New, surplus, and refurbished Allen-Bradley inventory in stock. Request a quote or speak directly with an automation specialist for emergency sourcing.
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Independent Supplier Notice
PALM Parts Solution operates as an independent industrial automation supplier and is not an authorized distributor or affiliate of any listed manufacturer or brand name. Manufacturer trademarks and product names are used solely for identification purposes. Original manufacturer warranties do not apply. All products sold by PALM Parts are backed by our own 1-year warranty.
Product Condition & Firmware
All products are sold as new unless stated otherwise. Original manufacturer packaging may show signs of handling, storage, or shelf wear. Date codes and series may vary from current factory production. PALM Parts does not guarantee the presence, version, or compatibility of any firmware on PLC or automation products.