1756-ENBT | Allen-Bradley ControlLogix EtherNet/IP Bridge Module 10/100 Mbps, 64 TCP/IP Connections
1756-ENBT | Allen-Bradley ControlLogix EtherNet/IP Bridge Module 10/100 Mbps, 64 TCP/IP Connections
1756-ENBT | Allen-Bradley ControlLogix EtherNet/IP Bridge Module 10/100 Mbps, 64 TCP/IP Connections
1756-ENBT | Allen-Bradley ControlLogix EtherNet/IP Bridge Module 10/100 Mbps, 64 TCP/IP Connections
1756-ENBT | Allen-Bradley ControlLogix EtherNet/IP Bridge Module 10/100 Mbps, 64 TCP/IP Connections
1756-ENBT | Allen-Bradley ControlLogix EtherNet/IP Bridge Module 10/100 Mbps, 64 TCP/IP Connections
1756-ENBT | Allen-Bradley ControlLogix EtherNet/IP Bridge Module 10/100 Mbps, 64 TCP/IP Connections
1756-ENBT | Allen-Bradley ControlLogix EtherNet/IP Bridge Module 10/100 Mbps, 64 TCP/IP Connections
1756-ENBT | Allen-Bradley ControlLogix EtherNet/IP Bridge Module 10/100 Mbps, 64 TCP/IP Connections
1756-ENBT | Allen-Bradley ControlLogix EtherNet/IP Bridge Module 10/100 Mbps, 64 TCP/IP Connections
1756-ENBT | Allen-Bradley ControlLogix EtherNet/IP Bridge Module 10/100 Mbps, 64 TCP/IP Connections
1756-ENBT | Allen-Bradley ControlLogix EtherNet/IP Bridge Module 10/100 Mbps, 64 TCP/IP Connections
1756-ENBT | Allen-Bradley ControlLogix EtherNet/IP Bridge Module 10/100 Mbps, 64 TCP/IP Connections
1756-ENBT | Allen-Bradley ControlLogix EtherNet/IP Bridge Module 10/100 Mbps, 64 TCP/IP Connections
1756-ENBT | Allen-Bradley ControlLogix EtherNet/IP Bridge Module 10/100 Mbps, 64 TCP/IP Connections
1756-ENBT | Allen-Bradley ControlLogix EtherNet/IP Bridge Module 10/100 Mbps, 64 TCP/IP Connections
1756-ENBT | Allen-Bradley ControlLogix EtherNet/IP Bridge Module 10/100 Mbps, 64 TCP/IP Connections
1756-ENBT | Allen-Bradley ControlLogix EtherNet/IP Bridge Module 10/100 Mbps, 64 TCP/IP Connections
    1756-ENBT | Allen-Bradley ControlLogix EtherNet/IP Bridge Module 10/100 Mbps, 64 TCP/IP Connections
    1756-ENBT | Allen-Bradley ControlLogix EtherNet/IP Bridge Module 10/100 Mbps, 64 TCP/IP Connections
    1756-ENBT | Allen-Bradley ControlLogix EtherNet/IP Bridge Module 10/100 Mbps, 64 TCP/IP Connections
    1756-ENBT | Allen-Bradley ControlLogix EtherNet/IP Bridge Module 10/100 Mbps, 64 TCP/IP Connections
    1756-ENBT | Allen-Bradley ControlLogix EtherNet/IP Bridge Module 10/100 Mbps, 64 TCP/IP Connections
    1756-ENBT | Allen-Bradley ControlLogix EtherNet/IP Bridge Module 10/100 Mbps, 64 TCP/IP Connections
1756-ENBT | Allen-Bradley ControlLogix EtherNet/IP Bridge Module 10/100 Mbps, 64 TCP/IP Connections
1756-ENBT | Allen-Bradley ControlLogix EtherNet/IP Bridge Module 10/100 Mbps, 64 TCP/IP Connections
1756-ENBT | Allen-Bradley ControlLogix EtherNet/IP Bridge Module 10/100 Mbps, 64 TCP/IP Connections
1756-ENBT | Allen-Bradley ControlLogix EtherNet/IP Bridge Module 10/100 Mbps, 64 TCP/IP Connections
1756-ENBT | Allen-Bradley ControlLogix EtherNet/IP Bridge Module 10/100 Mbps, 64 TCP/IP Connections
1756-ENBT | Allen-Bradley ControlLogix EtherNet/IP Bridge Module 10/100 Mbps, 64 TCP/IP Connections

1756-ENBT | Allen-Bradley ControlLogix EtherNet/IP Bridge Module 10/100 Mbps, 64 TCP/IP Connections

Part #: 1756-ENBT Manufactured by: Allen-Bradley
Regular price
$739.00
Sale price
$739.00
Regular price
20 in Stock
Condition: New-Surplus Original Box
Shipping calculated at checkout.
Product Overview
The Allen-Bradley 1756-ENBT is an EtherNet/IP bridge module for ControlLogix® systems, enabling high-speed communication b...  Read more
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Product Description P/N: 1756-ENBT

Description / Specifications

Description

The 1756-ENBT is a high-performance EtherNet/IP communication module for the ControlLogix platform, enabling data exchange between controllers and I/O over 10/100 Mbps Ethernet networks.

 

 

Technical Specifications 

Condition New/Never Used Surplus
Brand Allen-Bradley
Series ControlLogix
Part Number 1756-ENBT
Manufacturer Rockwell Automation
Module Type Ethernet Communication Module
Current Draw (5.1 Volt DC) 700 milliamps
Ethernet-IP Communication Rate 10/100 Mbps
Current Draw (24 Volt DC) 3 milliamps
Integrated Ports One (1) RJ45; One (1) USB 1.1
Current Draw 700 mA
Insulation Voltage 30 Volts Continuous
Location Chassis (any slot)
Enclosure Open
Slot Width 1
Operating Temperature 32 to 140 degrees Fahrenheit (0 to 60 degrees Celsius)
Power Dissipation 3.7 W
Thermal Dissipation 12.6 BTU/hrw
Weight 0.71 lbs

  

 

Information About 1756-ENBT

The Allen-Bradley 1756-ENBT is a high-speed EtherNet/IP bridge module designed for ControlLogix® systems, enabling seamless communication between programmable automation controllers (PACs), I/O devices, and supervisory systems over standard Ethernet networks. Supporting up to 64 TCP/IP connections and 10/100 Mbps communication rates, this module provides reliable and scalable networking in demanding industrial applications.

Key Features:

  • Network Protocol: EtherNet/IP, enabling real-time data exchange using the Common Industrial Protocol (CIP) for both implicit (I/O) and explicit (message) communication.
  • Chassis Compatibility: Designed for use in ControlLogix chassis with a single-slot configuration, integrating easily into Rockwell Automation's Logix-based architecture.
  • Connection Capacity: Supports up to 64 TCP/IP simultaneous connections, accommodating a broad range of HMI, SCADA, and controller-to-controller communication tasks.
  • Data Rate: Operates at 10/100 Mbps, full- or half-duplex, automatically negotiated via standard RJ-45 Ethernet connectors.
  • Web Server Access: Built-in diagnostics and configuration web server for real-time status monitoring, IP setup, and connection diagnostics via a standard browser.
  • IP Addressing Methods: Static IP, BOOTP, or DHCP, offering flexibility in IP network configuration and management.
  • Backplane Integration: Interfaces with the ControlLogix backplane for high-speed data throughput and efficient memory access.
  • Status Indicators: Front-facing LED indicators for network activity, module status, and connection diagnostics ensure quick troubleshooting and validation.
  • Firmware Compatibility: Supported by RSLogix 5000 and Studio 5000 software environments for configuration and programming.
  • Power Requirements: 1.2 W backplane power consumption (0.08 A @ 24V DC, 5.1V).
  • Environmental Ratings: Operating Temperature: 0 to 60 °C (32 to 140 °F); Storage Temperature: –40 to 85 °C (–40 to 185 °F); Relative Humidity: 5 to 95%, non-condensing
  • Certifications: UL, c-UL (Class I, Div 2), CE, ATEX certified for hazardous environments, ensuring global usability in industrial automation systems.

The 1756-ENBT module plays a critical role in enabling high-performance networked automation systems. Whether used for real-time control, remote I/O access, or supervisory interface communication, this bridge module ensures robust, deterministic data transfer essential for modern industrial Ethernet infrastructure. Ideal for OEMs, system integrators, and plant engineers seeking reliable EtherNet/IP connectivity in ControlLogix-based systems.

Frequently Asked Questions about 1756-ENBT
Question: What is the main function of the 1756-ENBT module?
Date Update:29/05/2025
Answer:

The 1756-ENBT is an EtherNet/IP communication bridge module used in ControlLogix systems. Its main role is to facilitate high-speed data exchange between controllers, I/O modules, HMIs, and SCADA systems over Ethernet. It supports both implicit (I/O) and explicit (messaging) communication using the Common Industrial Protocol (CIP). This allows seamless integration of real-time control and information exchange within the automation environment.

Question: How many Ethernet nodes can the 1756-ENBT module support?
Date Update:29/05/2025
Answer:

The 1756-ENBT module can support up to 64 simultaneous TCP/IP connections. This includes communication with controllers, HMIs, programming stations, and other network devices. The connection capacity ensures flexible integration into complex industrial networks.

Question: What software is used to configure the 1756-ENBT module?
Date Update:29/05/2025
Answer:

The 1756-ENBT is configured using RSLogix 5000 or Studio 5000 software. Additionally, it has a built-in web server for diagnostics and network setup via any standard web browser. This provides flexibility for both initial configuration and ongoing maintenance.

Question: What are the physical dimensions of the 1756-ENBT module?
Date Update:29/05/2025
Answer:

The module has dimensions of approximately 1 slot width in a ControlLogix chassis and weighs 0.71 lbs (about 0.32 kg). It is designed for easy installation into standard chassis slots. Its compact form factor allows space-efficient design in industrial control cabinets.

Question: Is the 1756-ENBT module still being manufactured?
Date Update:29/05/2025
Answer:

No, the 1756-ENBT module has been officially discontinued by Rockwell Automation as of December 31, 2021. It is no longer available for sale from the manufacturer. Users are advised to transition to its functional replacement, the 1756-EN2T. This replacement offers improved performance and continued support within modern ControlLogix systems.

Question: What is the recommended replacement for the 1756-ENBT?
Date Update:29/05/2025
Answer:

The recommended functional replacement for the 1756-ENBT is the 1756-EN2T module. It supports higher bandwidth, faster performance, and enhanced diagnostics capabilities. The 1756-EN2T is compatible with existing ControlLogix chassis and is part of the newer generation of Ethernet/IP communication modules. Migrating to this module helps ensure long-term support and better integration with Studio 5000.

IQElectro is not an authorized distributor.
QElectro LLC (IQElectro) is NOT an Authorized Distributor or in any way affiliated with Rockwell Automation, Siemens, or any other Manufacturers. IQElectro is NOT an Authorized Dealer of this product. The product may be of older version, date codes, or design than that available from authorized dealers. As IQElectro is not an authorized dealer of this product, the Original Manufacturer's Warranty and Support DO NOT apply. IQElectro sells SURPLUS only and DOES NOT SELL SOFTWARE or FIRMWARE licenses For more detailed information, please refer to the full version of our disclaimer policy Disclaimer Policy.
Description / Specifications

Description

The 1756-ENBT is a high-performance EtherNet/IP communication module for the ControlLogix platform, enabling data exchange between controllers and I/O over 10/100 Mbps Ethernet networks.

 

 

Technical Specifications 

Condition New/Never Used Surplus
Brand Allen-Bradley
Series ControlLogix
Part Number 1756-ENBT
Manufacturer Rockwell Automation
Module Type Ethernet Communication Module
Current Draw (5.1 Volt DC) 700 milliamps
Ethernet-IP Communication Rate 10/100 Mbps
Current Draw (24 Volt DC) 3 milliamps
Integrated Ports One (1) RJ45; One (1) USB 1.1
Current Draw 700 mA
Insulation Voltage 30 Volts Continuous
Location Chassis (any slot)
Enclosure Open
Slot Width 1
Operating Temperature 32 to 140 degrees Fahrenheit (0 to 60 degrees Celsius)
Power Dissipation 3.7 W
Thermal Dissipation 12.6 BTU/hrw
Weight 0.71 lbs

  

 

Information About 1756-ENBT

The Allen-Bradley 1756-ENBT is a high-speed EtherNet/IP bridge module designed for ControlLogix® systems, enabling seamless communication between programmable automation controllers (PACs), I/O devices, and supervisory systems over standard Ethernet networks. Supporting up to 64 TCP/IP connections and 10/100 Mbps communication rates, this module provides reliable and scalable networking in demanding industrial applications.

Key Features:

  • Network Protocol: EtherNet/IP, enabling real-time data exchange using the Common Industrial Protocol (CIP) for both implicit (I/O) and explicit (message) communication.
  • Chassis Compatibility: Designed for use in ControlLogix chassis with a single-slot configuration, integrating easily into Rockwell Automation's Logix-based architecture.
  • Connection Capacity: Supports up to 64 TCP/IP simultaneous connections, accommodating a broad range of HMI, SCADA, and controller-to-controller communication tasks.
  • Data Rate: Operates at 10/100 Mbps, full- or half-duplex, automatically negotiated via standard RJ-45 Ethernet connectors.
  • Web Server Access: Built-in diagnostics and configuration web server for real-time status monitoring, IP setup, and connection diagnostics via a standard browser.
  • IP Addressing Methods: Static IP, BOOTP, or DHCP, offering flexibility in IP network configuration and management.
  • Backplane Integration: Interfaces with the ControlLogix backplane for high-speed data throughput and efficient memory access.
  • Status Indicators: Front-facing LED indicators for network activity, module status, and connection diagnostics ensure quick troubleshooting and validation.
  • Firmware Compatibility: Supported by RSLogix 5000 and Studio 5000 software environments for configuration and programming.
  • Power Requirements: 1.2 W backplane power consumption (0.08 A @ 24V DC, 5.1V).
  • Environmental Ratings: Operating Temperature: 0 to 60 °C (32 to 140 °F); Storage Temperature: –40 to 85 °C (–40 to 185 °F); Relative Humidity: 5 to 95%, non-condensing
  • Certifications: UL, c-UL (Class I, Div 2), CE, ATEX certified for hazardous environments, ensuring global usability in industrial automation systems.

The 1756-ENBT module plays a critical role in enabling high-performance networked automation systems. Whether used for real-time control, remote I/O access, or supervisory interface communication, this bridge module ensures robust, deterministic data transfer essential for modern industrial Ethernet infrastructure. Ideal for OEMs, system integrators, and plant engineers seeking reliable EtherNet/IP connectivity in ControlLogix-based systems.

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