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The Allen-Bradley 1756-EWEB is a specialized communications module designed for the ControlLogix platform, providing robust EtherNet/IP connectivity and integrated web server functionality. This module facilitates efficient data exchange and remote monitoring capabilities within industrial automation environments, supporting up to 128 Logix connections.

Features

  • EtherNet/IP communication support for seamless integration into ControlLogix systems.
  • Integrated web server functionality for simplified remote diagnostics and data access.
  • Supports 10/100 Mbps communication speeds for reliable network throughput.
  • Capacity for up to 128 Logix connections, suitable for complex control architectures.
  • Designed for Class 3 messaging applications.
  • Chassis-based mounting, compatible with any available slot in a standard ControlLogix chassis.

Technical Specifications

Product Model 1756-EWEB
Module Type EtherNet/IP Web Server Module
Backplane Current Draw (5.1 VDC) 700 mA
Backplane Current Draw (24 VDC) 3 mA
Data Rate 10/100 Mbps
Max Connections 128 Logix connections
Messaging Type Class 3

Installation Guidelines

  • Ensure the ControlLogix chassis is powered down before inserting or removing the 1756-EWEB module to prevent electrical damage.
  • The module can be installed in any available slot within the chassis; ensure it is fully seated and the locking tabs are engaged.
  • Use high-quality, shielded twisted-pair Ethernet cabling to minimize electromagnetic interference (EMI) in industrial environments.
  • Maintain proper ventilation in the control cabinet to ensure the module operates within its specified temperature range.
  • Follow standard ESD (electrostatic discharge) precautions when handling the module to protect sensitive internal components.

FAQ

What is the primary function of the 1756-EWEB?
The 1756-EWEB acts as a communication bridge, allowing ControlLogix controllers to interface with EtherNet/IP networks while providing web-based data serving capabilities.

Does this module require a specific slot in the chassis?
No, the 1756-EWEB can be placed in any available slot within a standard ControlLogix chassis.

What is the backplane current requirement for this module?
The module draws 700 mA from the 5.1 VDC backplane supply and 3 mA from the 24 VDC supply.

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