1756-EN2F | Allen-Bradley ControlLogix EtherNet/IP Fiber Module 10/100 Mbps
1756-EN2F | Allen-Bradley ControlLogix EtherNet/IP Fiber Module 10/100 Mbps
1756-EN2F | Allen-Bradley ControlLogix EtherNet/IP Fiber Module 10/100 Mbps
    1756-EN2F | Allen-Bradley ControlLogix EtherNet/IP Fiber Module 10/100 Mbps
1756-EN2F | Allen-Bradley ControlLogix EtherNet/IP Fiber Module 10/100 Mbps

1756-EN2F | Allen-Bradley ControlLogix EtherNet/IP Fiber Module 10/100 Mbps

Part #: 1756-EN2F Manufactured by: Allen-Bradley
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$1,285.00
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Product Overview
Allen-Bradley 1756-EN2F ControlLogix EtherNet/IP Fiber Interface Module 10/100 Mbps, 128 TCP/IP connections
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Product Description P/N: 1756-EN2F

Description / Specifications

Description 

Allen Bradley ControlLogix Ethernet Communication Module with 128 TCP Connections.

 

Technical Specifications 

 

Brand Allen-Bradley
Series ControlLogix
Part Number 1756-EN2F
Manufacturer Rockwell Automation
Power supply, redundant 1756-PA75R, 1756-PB75R, 1756-PSCA2
Power supply, standard 1756-PA72, 1756-PA75, 1756-PB72, 1756-PB75, 1756- PC75, 1756-PH75
Chassis 1756-A4, 1756-A7, 1756-A10, 1756-A13, 1756-A17
Slot width 1
Power Dissipation 6.2 W
Backplane current 1.2 A at 5.1 VDC; 3 mA at 24VDC
Mounting Any 1756 Chassis
USB Data Transfer rate 12 Mbps
Ethernet Data Transfer speed 10 /100 Mbps
Communication Port One (1) Ethernet; One (1) USB
Thermal Dissipation 21.28 BTU/hr
Module Type Ethernet Communication Module
TCP Connections 128
CIP Connections 256
Maximum Multicast Tags 32
Enclosure Open
Ethernet-IP Communication Rate 10-1000 Megabites per second
Current Draw (5.1 Volts) 1.2 Amps
Current Draw (24 Volts) 3 milliamps
Voltage 5.1 Volts DC
Current Rating 1.2 Amps

  

 

Information About 1756-EN2F

The Allen-Bradley 1756-EN2F is a ControlLogix communication module. This module is used to enable Remote I/O connection, capable of acting as a communication adapter and scanner; permits data exchange between controller and visualization systems such as Human Machine Interface (HMI) or Supervisory Control and Data Acquisition (SCADA) and bridge ethernet networks to link messages from different ethernet nodes.

The 1756-EN2F features a single Ethernet port that uses fiber connection. Physical connection can be established using a Multimode fiber cable with LC connector. The module’s fiber port supports 10/100 Mbps transmission speed.

The 1756-EN2F is a single slow width module that is compatible for installation to any slot of 1756-A4, 1756-A7, 1756-A10, 1756-A13, and 1756-A17 ControlLogix chassis. It is also compatible for use with standard power supplies such as 1756-PA72, 1756-PA75, 1756-PB72, 1756-PB75, 1756-PC75, and 1756-PH75. It may also be installed with redundant power supplies such as 1756-PA75R, 1756-PB75R, and 1756-PSCA2.

The 1756-EN2F supports up to 128 TCP connections, 256 CIP connections and 128 + 128 CIP Unconnected Messages TCP (backplane + Ethernet). Additionally, it supports Socket services and SNMP. This module is also capable of duplicate IP detection.

The 1756-EN2F has a current draw of 1.2 Ampere of 5.1VDC and 3 mA at 24VDC with power dissipation of 6.2 Watts and Thermal dissipation 21.28 BTU/hr.

The 1756-EN2F bridge also has a CIP safety standard for allowing simultaneous transfer of safety and control data and diagnostics information. It uses advanced communication chips and physical media. The 1756-EN2F Module has 100 Mbps EtherNet/IP communication rates and uses fiber. It supports 256 Logix and 128 TCP/IP communication connections. It can support a maximum of 8 axes for integrated motion on the Ethernet/IP Network. It draws 1.2 A current at 5.1V DC and 3 mA at 24V DC. It has a maximum power dissipation of 6.2 W and thermal dissipation of 21.28 BTU/hr. It can be installed in any ControlLogix Chassis slot. For wiring, it uses unshielded RJ45, category 5, twisted-pair cable connectors to interface with the controller. To operate EtherNet/IP network parameters such as IP address, Subnet masks, Gateway etc. must be defined. The 1756-EN2F bridge has various functions like providing support for messaging, distributed I/O, and tags. It encapsulates messages within standard TCP/IP protocol.



Manufacturer information

Allen-Bradley, a brand of Rockwell Automation, specializes in manufacturing industrial automation equipment. The product range includes programmable logic controllers (PLCs), motion control systems, safety devices, motor control equipment, automation software, and HMI panels. Allen-Bradley products are known for their reliability and integration with other systems.

Frequently Asked Questions about 1756-EN2F
Question: What is the function of the 1756-EN2F module?
Date Update:09/06/2025
Answer:

The 1756-EN2F is an Ethernet/IP communication module. It allows ControlLogix controllers to communicate with Ethernet devices and other networked systems. It supports remote I/O, controller-to-controller messaging, and communication with HMIs and SCADA systems. The module enables integration of control and information networks for plant-wide connectivity. Its fiber port allows fast, reliable communication over longer distances.

Question: What types of power supplies can be used with the 1756-EN2F module?
Date Update:09/06/2025
Answer:
  • Standard Power Supplies: 1756-PA72, 1756-PA75, 1756-PB72, 1756-PB75, 1756-PC75, 1756-PH75.
  • Redundant Power Supplies: 1756-PA75R, 1756-PB75R, 1756-PSCA2.
  • Nominal Input Voltage: 5.1V DC.
  • Backplane Power Consumption: 6.2 Watts maximum.Proper selection of power supplies is essential for stable and continuous operation.
Question: What ControlLogix chassis are compatible with the 1756-EN2F module?
Date Update:09/06/2025
Answer:
  • 1756-A4.
  • 1756-A7.
  • 1756-A10.
  • 1756-A13.
  • 1756-A17.

This compatibility allows for flexible integration into various system architectures.

Question: Can the 1756-EN2F module handle multiple network connections?
Date Update:09/06/2025
Answer:

Yes, it supports up to 128 TCP connections and 256 CIP connections. It also handles 128 CIP unconnected messages via backplane and Ethernet. The module is designed for high-performance communication in industrial networks. It ensures reliable data exchange between multiple devices and systems. These features make it ideal for complex automation applications.

Question: Is the 1756-EN2F still in production?
Date Update:09/06/2025
Answer:

Yes, the 1756-EN2F module is currently in production. It has an "Active" lifecycle status, meaning it is fully supported and available for new projects. Users can rely on this module for long-term system planning. Rockwell Automation continues to provide support, documentation, and replacement parts. Staying updated on lifecycle status ensures optimal support and system reliability.

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 

Allen Bradley ControlLogix Ethernet Communication Module with 128 TCP Connections.

 

Technical Specifications 

 

Brand Allen-Bradley
Series ControlLogix
Part Number 1756-EN2F
Manufacturer Rockwell Automation
Power supply, redundant 1756-PA75R, 1756-PB75R, 1756-PSCA2
Power supply, standard 1756-PA72, 1756-PA75, 1756-PB72, 1756-PB75, 1756- PC75, 1756-PH75
Chassis 1756-A4, 1756-A7, 1756-A10, 1756-A13, 1756-A17
Slot width 1
Power Dissipation 6.2 W
Backplane current 1.2 A at 5.1 VDC; 3 mA at 24VDC
Mounting Any 1756 Chassis
USB Data Transfer rate 12 Mbps
Ethernet Data Transfer speed 10 /100 Mbps
Communication Port One (1) Ethernet; One (1) USB
Thermal Dissipation 21.28 BTU/hr
Module Type Ethernet Communication Module
TCP Connections 128
CIP Connections 256
Maximum Multicast Tags 32
Enclosure Open
Ethernet-IP Communication Rate 10-1000 Megabites per second
Current Draw (5.1 Volts) 1.2 Amps
Current Draw (24 Volts) 3 milliamps
Voltage 5.1 Volts DC
Current Rating 1.2 Amps

  

 

Information About 1756-EN2F

The Allen-Bradley 1756-EN2F is a ControlLogix communication module. This module is used to enable Remote I/O connection, capable of acting as a communication adapter and scanner; permits data exchange between controller and visualization systems such as Human Machine Interface (HMI) or Supervisory Control and Data Acquisition (SCADA) and bridge ethernet networks to link messages from different ethernet nodes.

The 1756-EN2F features a single Ethernet port that uses fiber connection. Physical connection can be established using a Multimode fiber cable with LC connector. The module’s fiber port supports 10/100 Mbps transmission speed.

The 1756-EN2F is a single slow width module that is compatible for installation to any slot of 1756-A4, 1756-A7, 1756-A10, 1756-A13, and 1756-A17 ControlLogix chassis. It is also compatible for use with standard power supplies such as 1756-PA72, 1756-PA75, 1756-PB72, 1756-PB75, 1756-PC75, and 1756-PH75. It may also be installed with redundant power supplies such as 1756-PA75R, 1756-PB75R, and 1756-PSCA2.

The 1756-EN2F supports up to 128 TCP connections, 256 CIP connections and 128 + 128 CIP Unconnected Messages TCP (backplane + Ethernet). Additionally, it supports Socket services and SNMP. This module is also capable of duplicate IP detection.

The 1756-EN2F has a current draw of 1.2 Ampere of 5.1VDC and 3 mA at 24VDC with power dissipation of 6.2 Watts and Thermal dissipation 21.28 BTU/hr.

The 1756-EN2F bridge also has a CIP safety standard for allowing simultaneous transfer of safety and control data and diagnostics information. It uses advanced communication chips and physical media. The 1756-EN2F Module has 100 Mbps EtherNet/IP communication rates and uses fiber. It supports 256 Logix and 128 TCP/IP communication connections. It can support a maximum of 8 axes for integrated motion on the Ethernet/IP Network. It draws 1.2 A current at 5.1V DC and 3 mA at 24V DC. It has a maximum power dissipation of 6.2 W and thermal dissipation of 21.28 BTU/hr. It can be installed in any ControlLogix Chassis slot. For wiring, it uses unshielded RJ45, category 5, twisted-pair cable connectors to interface with the controller. To operate EtherNet/IP network parameters such as IP address, Subnet masks, Gateway etc. must be defined. The 1756-EN2F bridge has various functions like providing support for messaging, distributed I/O, and tags. It encapsulates messages within standard TCP/IP protocol.



Manufacturer information

Allen-Bradley, a brand of Rockwell Automation, specializes in manufacturing industrial automation equipment. The product range includes programmable logic controllers (PLCs), motion control systems, safety devices, motor control equipment, automation software, and HMI panels. Allen-Bradley products are known for their reliability and integration with other systems.

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