Allen-Bradley 1756-EWEB

¥9,999.00

The Allen-Bradley 1756-EWEB is an EtherNet/IP web server communication module from the Rockwell Automation ControlLogix platform, designed to provide ControlLogix controllers with Ethernet connectivity for messaging, web-based diagnostics, and data access. As a core component of the ControlLogix communication portfolio, the 1756-EWEB enables ControlLogix processors to exchange data with other EtherNet/IP devices and to serve web pages for remote monitoring and diagnostics, making it a dependable choice for distributed control architectures. The 1756-EWEB installs directly into a ControlLogix chassis and is configured through Studio 5000 / RSLogix 5000, allowing engineers to set up IP addressing, messaging, and web server functions efficiently. With its embedded web server capability, the Allen-Bradley 1756-EWEB allows operators and maintenance personnel to view module status, diagnostics, and data through a standard browser — a valuable feature for remote troubleshooting. The 1756-EWEB is widely deployed in process, manufacturing, and infrastructure applications, and its part number simplifies spare-parts identification. Note that the 1756-EWEB is a communication module with web server functionality rather than a general-purpose Ethernet bridge, so confirm its role against your network architecture before specifying it.

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Description

Product Parameters

  • Model: 1756-EWEB

  • Product Type: EtherNet/IP Web Server Communication Module (ControlLogix)

  • Network: EtherNet/IP (10/100 Base-T)

  • Web Server: Embedded web server for diagnostics and data access

  • Messaging: Supports EtherNet/IP messaging and produced/consumed tags

  • Chassis Compatibility: ControlLogix 1756 chassis

  • Configuration Software: Studio 5000 / RSLogix 5000

  • Connectors: RJ45 Ethernet ports (confirm port count per datasheet)

  • Operating Environment: Industrial temperature range per datasheet

(Confirm exact port count, firmware revision, and messaging capacity from the official Rockwell Automation datasheet for 1756-EWEB.)

Advantages and Features

  • Embedded web server — the 1756-EWEB provides browser-based diagnostics and data access without additional software.

  • EtherNet/IP connectivity — enables messaging and produced/consumed tag exchange with other EtherNet/IP devices.

  • Native ControlLogix integration — installs directly into the 1756 chassis and configures through Studio 5000.

  • Remote diagnostics — supports troubleshooting from a standard web browser, reducing downtime.

  • Data access for enterprise integration — facilitates plant-floor data visibility.

  • Proven reliability — part of Rockwell Automation’s widely deployed ControlLogix communication family.

Application Cases and Fields

  • Oil & Gas — remote monitoring and diagnostics of ControlLogix systems

  • Power Generation — plant-floor data access and troubleshooting

  • Chemical & Petrochemical — process control network messaging

  • Water/Wastewater — remote web-based diagnostics

  • Manufacturing & Material Handling — enterprise data integration and monitoring

The 1756-EWEB is commonly deployed where EtherNet/IP messaging plus browser-based diagnostics are required.

Comparison with Competing Products

Aspect Allen-Bradley 1756-EWEB 1756-ENBT (EtherNet/IP bridge) 1756-EN2T (EtherNet/IP bridge)
Primary role Web server + EtherNet/IP messaging EtherNet/IP bridge/messaging EtherNet/IP bridge/messaging
Embedded web server Yes Limited Limited
Port speed 10/100 10/100 10/100/1000
Integration Native ControlLogix Native ControlLogix Native ControlLogix
Best fit Diagnostics/data access General I/O bridging High-bandwidth I/O bridging

Selection Suggestions and Precautions

  • Confirm the exact role of 1756-EWEB in your network — it is optimized for web server and messaging functions, not as a high-bandwidth I/O bridge.

  • Verify firmware compatibility with your ControlLogix controller and Studio 5000 version.

  • Plan IP addressing, subnet, and network security carefully — the web server should be secured per your plant IT/OT policy.

  • Check messaging capacity and connection limits against your application requirements.

  • Consider whether a 1756-EN2T or similar bridge is a better fit for high-bandwidth I/O applications.

  • Ensure proper network grounding, shielding, and segmentation per Rockwell guidelines.

  • Source from authorized channels to avoid counterfeit or mismatched revisions of the 1756-EWEB.

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