Product Details
Overview
The Allen-Bradley 1756-EN2TR is a high-performance communication module for ControlLogix PLC systems. It provides dual copper Ethernet/IP bridging, enabling seamless integration between multiple networked devices and ControlLogix controllers. Designed for chassis mounting, this interface supports extensive TCP/IP connections with reliable industrial communication.
Technical Specifications
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Model / Part Number: 1756-EN2TR
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Brand: Allen-Bradley
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Product Type: EtherNet/IP Communication Module / Interface Module
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Product Family: ControlLogix
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Module Weight: 0.79 lbs (0.36 kg)
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Connection Speed: 10/100 Mbps
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Supported Connections: 128 TCP/IP Connections, 256 total connections
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Switch Type: Embedded
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Communication Type: EtherNet/IP Bridge, Dual Copper
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Mounting Type: Chassis Mounted
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Memory Speed: Standard 10/100 MBPS
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Industrial Compatibility: Optimized for ControlLogix and FactoryTalk applications
Applications
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Connects ControlLogix PLCs to Ethernet/IP networks
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Bridges legacy and modern industrial Ethernet devices
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Ideal for factory automation, machine control, and data exchange in industrial environments
FAQs
Q1: How many simultaneous TCP/IP connections does this module support?
The 1756-EN2TR can handle up to 128 TCP/IP connections, totaling 256 device connections.
Q2: Can this module be installed in any ControlLogix chassis?
Yes, it is designed for standard chassis mounting in ControlLogix racks.
Q3: What is the maximum communication speed?
The module supports 10/100 Mbps Ethernet speeds for fast and reliable data transfer.
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
Understanding Safety Relays in Industrial Automation: Architecture, Operation, and Functional Safety
Standard electromechanical relays provide basic electrical isolation between low-voltage control circuits and high-power output loads. A traditional switching relay features a magnetic coil driving mechanical Common (COM), Normally-Open (NO), and Normally-Closed (NC) contacts. However, standard relays pose severe functional risks when deployed in critical safety interlock circuits. High current inrush or mechanical wear can weld contacts together permanently. If contact welding occurs in an emergency stop circuit, pressing the button fails to halt hazardous machinery movements. Consequently, global functional safety standards prohibit standard relays for critical machine guarding functions.
Mastering Wire Identification in Industrial Automation: The Power of Ferrules and Cross-Ferruling
Proper wire labeling forms the cornerstone of reliable control system installation and long-term maintenance. In complex industrial automation environments, technicians terminate thousands of conductor ends inside control panels, marshalling racks, and field junction boxes. Ferrules serve as individual tube-shaped sleeve markers slipped onto conductors before final termination. While technicians historically relied on pre-printed individual letter rings, modern control panel builders utilize automated ferrule printing machines. These thermal-transfer printers generate durable, single-sleeve heat-shrink tags directly matching approved wiring schematics, significantly accelerating cabinet assembly workflows.
Understanding Marshalling Cabinets in Industrial Automation and Control Systems
Marshalling cabinets serve as the crucial connection hub between field instruments and centralized processing units. In large DCS and PLC control system architectures, hundreds of multipair field cables run from local junction boxes to the central instrument equipment room. The marshalling cabinet houses field terminal blocks, surge arresters, intrinsic safety isolation barriers, and interposing relays. By segregating field field-wiring terminations from sensitive processor hardware, engineers protect expensive controller backplanes from high-voltage transients. Consequently, this modular separation dramatically streamlines maintenance workflows and simplifies system expansion.