SC SOURCING BRIEFALLEN-BRADLEY · ControlLogix Communication Module

1756-ENET/B

ControlLogix EtherNet/IP Bridge Module

ControlLogix EtherNet/IP Bridge Module for connecting controllogix chassis, remote i/o and programming or hmi traffic over legacy ethernet networks, supplied against the exact catalog number with series, firmware and installed-system compatibility checked before quotation.

BRANDAllen-Bradley
STOCK CONFIRMATIONLead time: 2–3 days
CONDITIONBrand new and original
WARRANTY12 months

Product overview

The Allen-Bradley 1756-ENET/B is a ControlLogix EtherNet/IP Bridge Module used for connecting controllogix chassis, remote i/o and programming or hmi traffic over legacy ethernet networks. Typical applications include controllogix remote i/o networking and controller and hmi messaging.

Selection must follow the complete catalog number rather than appearance alone. Before ordering, confirm series b hardware and firmware, ip address and network architecture, scanner or adapter role and i/o connection count, rslogix 5000, rslinx and controller firmware compatibility.

COMMON APPLICATIONS

Installed-system context

  • ControlLogix remote I/O networking
  • Controller and HMI messaging
  • Legacy EtherNet/IP bridge replacement

Tell us the controller, communication network and installed panel details. That context helps prevent a visually similar but incompatible replacement.

VERIFIED MODEL DATA

Technical specifications

Manufacturer
Allen-Bradley (Rockwell Automation)
Catalog number
1756-ENET/B
Product name
ControlLogix EtherNet/IP Bridge Module
Module type
ControlLogix Ethernet communication interface / bridge
Series
B
Network role
Adapter or scanner for real-time I/O; explicit messaging for configuration and programming
Connections
Supports direct and rack-optimized I/O connections
Chassis
1756 ControlLogix chassis
Lifecycle
Discontinued legacy module; migration and firmware compatibility require review

Technical values are compiled from official Allen-Bradley product documentation for this exact article number. Always check the delivered unit nameplate and revision before installation.

What to send for verification

  • • Complete catalog number and nameplate
  • • Series B hardware and firmware
  • • IP address and network architecture
  • • scanner or adapter role and I/O connection count
  • • RSLogix 5000, RSLinx and controller firmware compatibility
  • • Required quantity, destination and condition

What your quotation will state

  • • Exact quoted article number
  • • New, surplus or refurbished condition
  • • Available quantity and estimated lead time
  • • Warranty and proposed shipping method

Discontinued communication module — confirm Series B firmware, network role, addressing and controller compatibility.

BUYER QUESTIONS

Frequently asked questions

What is the Allen-Bradley 1756-ENET/B?

It is a ControlLogix EtherNet/IP Bridge Module used for connecting controllogix chassis, remote i/o and programming or hmi traffic over legacy ethernet networks.

What should be checked before ordering?

Confirm the full catalog number, then verify series b hardware and firmware, ip address and network architecture, scanner or adapter role and i/o connection count.

Can a visually similar Allen-Bradley module be used instead?

Do not select by appearance alone. Series, firmware, memory, voltage, communication interface, chassis compatibility and field wiring can differ even when housings look similar.

What information is needed for a quotation?

Send the complete catalog number, quantity, destination, required condition and clear front or nameplate photos. We will confirm the quoted revision and lead time in writing.

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