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Allen-Bradley 1756-EN3TR/B
by Allen-Bradley
Read verified buyer reviews ↓OverviewElevate your industrial automation infrastructure with the Allen-Bradley 1756-EN3TR/B, a high-performance ControlLogix EtherNet/IP Dual-Port Interface Module. Engineered for the demands of modern manufacturing, this robust module facilitates real-time industrial networking, ensuring seamless data exchange and superior control within your ControlLogix system. Its dual 10/100 Mbps Ethernet ports provide flexible and reliable connectivity, supporting both Device Level Ring (DLR) and linear network topologies for enhanced redundancy and minimized downtime. Specifically optimized for CIP Motion applications, the 1756-EN3TR/B delivers exceptional motion control capabilities, supporting an impressive 255 motion axes and up to 128 TCP/IP connections, making it an indispensable component for large-scale and complex automation environments. Leverage the power of EtherNet/IP to achieve unparalleled efficiency and precision in your operations.Key Features Dual-Port EtherNet/IP Connectivity: Features two 10/100 Mbps ports for high-speed, redundant network communication in vital industrial settings. Extensive TCP/IP Support: Manages up to 128 TCP/IP connections, enabling efficient data handling across your industrial network. Advanced Motion Control: Optimized for CIP Motion, capable of managing up to 255 motion axes for precise, synchronized control in intricate automation systems. Integrated Switch Technology: Supports resilient network architectures like Device Level Ring (DLR) and linear topologies, improving overall system dependability. Seamless ControlLogix Integration: Designed for easy integration with Allen-Bradley ControlLogix systems, ensuring optimized industrial communication. Real-Time Operation: Offers real-time communication essential for time-sensitive industrial processes and synchronized tasks. Enhanced System Resilience: The dual-port design and DLR support contribute to greater network availability and fewer operational interruptions. Technical Specifications Model: 1756-EN3TR/B Protocol: EtherNet/IP Ports: 2 (10/100 Mbps, Integrated Switch) Max TCP/IP Connections: 128 Supported Motion Axes: Up to 255 Network Topologies: Device Level Ring (DLR) and Linear Series: ControlLogix Brand: Allen-Bradley Product Type: EtherNet/IP Communication Module Applications Factory Automation: Delivers high-speed and dependable EtherNet/IP networking for integrating industrial controllers, robotics, and smart devices across manufacturing facilities. Process Control: Ensures stable and secure Ethernet communication in critical process control applications for industries such as oil & gas, chemicals, and pharmaceuticals. Machine Interface: Facilitates smooth connectivity between human-machine interfaces (HMIs) and machine components for real-time monitoring and control. SCADA & Distributed I/O: Provides robust industrial networking for Supervisory Control and Data Acquisition (SCADA) systems and distributed I/O architectures, enhancing data collection across wide areas. High-Performance Motion: Crucial for applications requiring precise and synchronized motion, including packaging machinery, printing presses, and robotic assembly lines. Energy Management: Supports efficient data exchange for energy monitoring and control systems in industrial plants, optimizing power usage. Why Choose This Model?Unmatched Reliability: With its dual-port design and support for DLR, the 1756-EN3TR/B offers exceptional network redundancy, significantly reducing the risk of downtime in critical operations.Superior Performance: Optimized for CIP Motion and supporting a high number of motion axes and TCP/IP connections, this module delivers the speed and precision required for advanced automation tasks.Order NowUpgrade your industrial communication capabilities with the Allen-Bradley 1756-EN3TR/B. Contact us today to learn more or to place your order.FAQWhat is the primary function of the 1756-EN3TR/B module?The 1756-EN3TR/B is an EtherNet/IP interface module for ControlLogix systems, designed to provide high-performance, real-time industrial networking and advanced motion control.How many Ethernet ports does this module have and what are their speeds?This module features two 10/100 Mbps Ethernet ports, which support flexible and reliable connectivity.Can this module be used in redundant network configurations?Yes, it supports Device Level Ring (DLR) and linear network topologies for enhanced redundancy and minimized downtime.What is CIP Motion and how does the 1756-EN3TR/B support it?CIP Motion is a communication protocol for precise and synchronized motion control. The 1756-EN3TR/B is optimized for these applications, supporting up to 255 motion axes.What are the maximum TCP/IP connections supported by this module?The module can manage up to 128 TCP/IP connections, ensuring efficient data handling across your industrial network.
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Allen-Bradley 1756-EN3TR/B
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: 1756-EN3TR/B
- Protocol: EtherNet/IP
- Ports: 2 (10/100 Mbps, Integrated Switch)
- Max TCP/IP Connections: 128
- Supported Motion Axes: Up to 255
- Network Topologies: Device Level Ring (DLR) and Linear
- Series: ControlLogix
- Brand: Allen-Bradley
- Product Type: EtherNet/IP Communication Module
Applications
- Factory Automation: Delivers high-speed and dependable EtherNet/IP networking for integrating industrial controllers, robotics, and smart devices across manufacturing facilities.
- Process Control: Ensures stable and secure Ethernet communication in critical process control applications for industries such as oil & gas, chemicals, and pharmaceuticals.
- Machine Interface: Facilitates smooth connectivity between human-machine interfaces (HMIs) and machine components for real-time monitoring and control.
- SCADA & Distributed I/O: Provides robust industrial networking for Supervisory Control and Data Acquisition (SCADA) systems and distributed I/O architectures, enhancing data collection across wide areas.
- High-Performance Motion: Crucial for applications requiring precise and synchronized motion, including packaging machinery, printing presses, and robotic assembly lines.
- Energy Management: Supports efficient data exchange for energy monitoring and control systems in industrial plants, optimizing power usage.
Why Choose the 1756-EN3TR/B?
Unmatched Reliability: With its dual-port design and support for DLR, the 1756-EN3TR/B offers exceptional network redundancy, significantly reducing the risk of downtime in critical operations.
Superior Performance: Optimized for CIP Motion and supporting a high number of motion axes and TCP/IP connections, this module delivers the speed and precision required for advanced automation tasks.
Availability & Shipping
- ▸In stock: 1756-EN3TR/B 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-EN3TR/B 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.