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
$554.00
Sale price
$554.00
Regular price
20 in Stock
Condition: New-Surplus Original Box
Shipping calculated at checkout.
Product Overview
The Allen-Bradley 1756-ENBT is a robust ControlLogix Ethernet/IP communication bridge module that supports high-speed netw...  Read more
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Product Description P/N: 1756-ENBT

Description / Specifications

Description

The Allen-Bradley 1756-ENBT is a ControlLogix Ethernet communication module that supports the EtherNet/IP protocol. It enables high-speed data transfer, distributed I/O control, and inter-controller communication over 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 1756-ENBT is part of the Allen-Bradley ControlLogix family, designed to provide seamless Ethernet connectivity for automation systems. It supports 10/100 Mbps communication rates in half or full duplex mode through a single RJ45 port and includes a USB 1.1 port for configuration. This module can handle up to 64 TCP and 128 CIP connections, allowing efficient data exchange between controllers, I/O modules, and other devices on an EtherNet/IP network. With a current draw of 700 mA at 5.1 VDC and 3 mA at 24 VDC, it operates with a maximum power dissipation of 3.7 W. The 1756-ENBT is also web-enabled, providing diagnostic tools and configuration access via a standard web browser, making it easier to manage networked devices.

Key Features:

  • Communication Protocol: Supports EtherNet/IP with auto-negotiation at 10/100 Mbps for flexible operation.
  • Port Options: One (1) RJ45 port for Ethernet connection and one (1) USB 1.1 port for configuration.
  • Connection Capacity: Handles up to 64 TCP and 128 CIP connections for high-volume data transfer.
  • Web-Enabled: Provides browser-based access for configuration, diagnostics, and monitoring.
  • Power Requirements: Consumes 700 mA at 5.1 VDC and 3 mA at 24 VDC, with 3.7 W maximum power dissipation.
  • Diagnostics: Offers monitoring of IP traffic, TCP/UDP activity, collisions, and connection management.
  • Compatibility: Works with ControlLogix chassis in any slot and is backward compatible.
  • Operating Conditions: Functions in environments from 0 to 60 °C (32 to 140 °F) with open enclosure mounting.

The 1756-ENBT delivers the reliability and precision required for Ethernet-based communication in ControlLogix automation 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 Allen-Bradley 1756-ENBT is a ControlLogix Ethernet communication module that supports the EtherNet/IP protocol. It enables high-speed data transfer, distributed I/O control, and inter-controller communication over 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 1756-ENBT is part of the Allen-Bradley ControlLogix family, designed to provide seamless Ethernet connectivity for automation systems. It supports 10/100 Mbps communication rates in half or full duplex mode through a single RJ45 port and includes a USB 1.1 port for configuration. This module can handle up to 64 TCP and 128 CIP connections, allowing efficient data exchange between controllers, I/O modules, and other devices on an EtherNet/IP network. With a current draw of 700 mA at 5.1 VDC and 3 mA at 24 VDC, it operates with a maximum power dissipation of 3.7 W. The 1756-ENBT is also web-enabled, providing diagnostic tools and configuration access via a standard web browser, making it easier to manage networked devices.

Key Features:

  • Communication Protocol: Supports EtherNet/IP with auto-negotiation at 10/100 Mbps for flexible operation.
  • Port Options: One (1) RJ45 port for Ethernet connection and one (1) USB 1.1 port for configuration.
  • Connection Capacity: Handles up to 64 TCP and 128 CIP connections for high-volume data transfer.
  • Web-Enabled: Provides browser-based access for configuration, diagnostics, and monitoring.
  • Power Requirements: Consumes 700 mA at 5.1 VDC and 3 mA at 24 VDC, with 3.7 W maximum power dissipation.
  • Diagnostics: Offers monitoring of IP traffic, TCP/UDP activity, collisions, and connection management.
  • Compatibility: Works with ControlLogix chassis in any slot and is backward compatible.
  • Operating Conditions: Functions in environments from 0 to 60 °C (32 to 140 °F) with open enclosure mounting.

The 1756-ENBT delivers the reliability and precision required for Ethernet-based communication in ControlLogix automation systems.

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