Allen-Bradley 1756-EN3TR ControlLogix Dual-Port EtherNet/IP Communication Module

Allen-Bradley 1756-EN3TR ControlLogix Ethernet communication unit
Allen-Bradley 1756-EN3TR ControlLogix Ethernet communication unit
Allen-Bradley 1756-EN3TR ControlLogix Ethernet communication unit
ControlLogix EtherNet/IP Communication Module

Allen-Bradley 1756-EN3TR

Dual-port 10/100 Mbps EtherNet/IP module for high-capacity ControlLogix communication and motion architectures.

Short Product Summary

Allen-Bradley 1756-EN3TR is a chassis-mounted ControlLogix EtherNet/IP communication module with two copper RJ45 ports operating at 10/100 Mbps. Rockwell Automation identifies it for high-capacity motion applications and documents support for 128 TCP connections and up to 256 CIP connections. The module occupies one chassis slot and supports redundant network architectures. It provides the controller chassis with an industrial Ethernet communication path for distributed I/O, peer communication, diagnostics and coordinated motion traffic. Buyers should verify the complete catalog number, hardware series, network topology, IP plan, connection loading, motion requirements, chassis slot and controller project before deployment or replacement.

Commercial Status

Original new In stock Active With 1 year warranty

Condition, availability and warranty are Stockoems commercial information and are not manufacturer commitments.

Verified Product Data

ManufacturerAllen-Bradley
Complete Part Number1756-EN3TR
Product TypeControlLogix EtherNet/IP communication module
SeriesControlLogix 1756 I/O
Network Interface2 copper RJ45 Ethernet ports
Communication Rate10/100 Mbps
Connection Capacity128 TCP and up to 256 CIP connections
ApplicationEtherNet/IP and high-capacity motion
Slot Width1
Official Life CycleActive
Product ConditionOriginal new
ShippingWorldwide options reviewed with the written quotation

EtherNet/IP Communication Path

01 Network devices
Controllers, distributed I/O, drives and other EtherNet/IP nodes exchange industrial data.
02 Dual-port interface
Two 10/100 Mbps copper ports support device-level or resilient network connection strategies.
03 Chassis backplane
The module routes network traffic to ControlLogix controllers and backplane devices.

Typical Applications

ControlLogix distributed I/O networks
High-capacity integrated motion systems
Controller-to-controller EtherNet/IP communication
Drive and machine network integration
Resilient industrial Ethernet architectures

Compatibility and Revision Notice

Verify the complete catalog number 1756-EN3TR, hardware series, chassis and controller compatibility, network topology, IP addressing, port media, connection count, motion axis requirements, electronic keying and project configuration. Confirm that the planned communication load and redundancy design match the installed architecture before deployment or replacement.

1756-EN3TR FAQ

Is 1756-EN3TR discontinued?
No. Rockwell Automation currently lists 1756-EN3TR with an Active life-cycle status.
How many Ethernet ports are provided?
It provides two copper RJ45 Ethernet ports.
What communication rate does 1756-EN3TR support?
The documented communication rate is 10/100 Mbps.
How many connections are supported?
Rockwell Automation documents 128 TCP connections and up to 256 CIP connections.
Is the module chassis mounted?
Yes. It is a one-slot ControlLogix chassis communication module.
What should be checked before replacement?
Check the suffix, series, chassis, topology, IP plan, port media, connection load, motion requirements and project configuration.

Stockoems is operated by Apter Power Limited and is an independent reseller of industrial automation products. Manufacturer names and trademarks are used for identification purposes only.

Request a Verified Quotation

Send us the complete part number, required quantity, destination country and product label photos. Our team will check availability, condition, compatibility requirements and shipping options.

Email: sales6@apterpower.com
WhatsApp: +86 18159889985

 
Verification to After-Sales

A Four-Gate Service Route

Each order moves through identification, technical review, protective handling and shipment coordination before after-sales support begins.

Stockoems inspection team checking industrial automation product condition
Condition and label inspection
Technical specialist reviewing an industrial control cabinet installation
Application and installation review
Stockoems technical team coordinating industrial automation order details
Technical and logistics coordination
1

Identity Gate

Model and suffix verification, condition confirmation, and product and label photo confirmation establish the requested item before order processing.

2

Compatibility Gate

Technical compatibility review considers the complete part number, series, wiring, terminal block, chassis position and project requirements supplied by the buyer.

3

Handling Gate

Protective packaging is selected for the product format and shipment route. Label visibility and package condition are reviewed before dispatch coordination.

4

Delivery Gate

Worldwide shipping, shipment tracking and customs documentation are coordinated according to the written quotation and destination requirements.

Support Commitments

Written warranty terms
Commercial warranty scope is stated with the quotation or order documents.
Return authorization process
Return requests are reviewed against the documented order and agreed terms.
After-sales response
Our team coordinates product, documentation and shipment questions after delivery.

Apter Power Limited combines industrial automation product handling, label review, technical communication, packaging coordination and export documentation support. Availability and dispatch arrangements remain subject to the written quotation; no unconfirmed delivery date or inventory quantity is promised.

Coordinate Your Order

Share the complete model, suffix, quantity, destination and label photos so our team can organize the verification and shipping review.

Email: sales6@apterpower.com
WhatsApp: +86 18159889985

Exact-model directory

Stockoems Advantage Model Selection

Each entry is an independent product listing and is not presented as a direct replacement. Confirm the manufacturer, complete part number, revision and compatibility before ordering.

ABB 4D29-AB TS-919B4 SLA-2812DN 51304540-200 LCNE2 3200BEP
NB2-P36R3-AC/Z005 3RV2021-1BA20 SR2 SFT01 UE410-8DI3 LMD-120D
F2H FHP2 FHP2A04 76702 DVI-2325-FO TD220030 ABB 1SAP450600R0001 AI531
0AC808.9-1 PTL-17-483 C2ENET-1 C2 ENET-1 IO113 98097390 MWB60-2E
PWA79522-01P 1530RX IPC3611ER3-PF28 MCLTEB0008503100 RYM02M1
2580190000 605 0019 R0001 Times-7 A1001 Ex09115666 ABB TU508-ETH A0 1SAP414000R0001
BKM-FW10 GS06 WAGO 750-841 BM12 201-528-100-BK
0160-001-01 1550/PM 473004 9150-28178-02 CONV0/10A0 ADV151-E13
LBB1856/00 LBB1957/00 6ES7 972-0BB12-0XA0 OPTOIO-PCI16 LOP5-2,55518815 3HE04324AAAA02
ABB RC/A4.2 SWH-4200 50012 WML-317-292 ABB 1MRK000508-BDr06
DX80DR2M-H / DX80DR2MH ABB DX561 1TNE968902R2301 L24734-F655-A5 6ES7195-7HB00-0XA0 TMS 1308
GHC1020 HHU32100 ABB RXMVB 2 RK 251204-AN Xenta 301 DX111-FBP.0
80PK-27 LSM4N FTM50-3GJ2A2A52AA RM-280 CM9760-ALM
AC511 0MN008 PTS-0.95-350-321 077672L ABB GJR2240900R0001 XV370A-E 9024/021 330100-50-05

Models were randomly selected from the customer-provided TXT lists. Only exact Stockoems product matches are linked; unlinked entries remain plain text.

Ask About an Exact Model

Send the complete part number and required quantity for availability, condition and compatibility review.

Email: sales6@apterpower.com
WhatsApp: +86 18159889985

Leave A Message
If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.
Submit

Need Help? Chat with us

Leave A Message
If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.
Submit
Looking for News & Events?
Contact Us #
+8618159889985

Our hours

Mon 11/21 - Wed 11/23: 9 AM - 8 PM
Thu 11/24: closed - Happy Thanksgiving!
Fri 11/25: 8 AM - 10 PM
Sat 11/26 - Sun 11/27: 10 AM - 9 PM
(all hours are Eastern Time)

Home

Products

whatsApp

contact