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1756-EN2T – ControlLogix EtherNet/IP module
1756-EN2T is a current Allen-Bradley ControlLogix EtherNet/IP module (Rockwell lifecycle status: Active, read on 30 October 2026). It replaces 1 discontinued catalog number in TDL's end-of-life lookup. TDL quotes 1756-EN2T as a spare or as part of a replacement, and carries out the change on site: configuration, program changes where needed, and testing.
| Catalog number | 1756-EN2T |
|---|---|
| Rockwell description | EtherNet/IP communication module, 10/100M twisted pair, 128 TCP connections |
| Rockwell lifecycle status | Active — sold and supported (read on 30 October 2026) |
| Product family | ControlLogix EtherNet/IP module |
| Rockwell technical documents | 1756-SG001, 1756-IN050, 1756-TD003 |
Discontinued parts this catalog number replaces
| Discontinued part | Product | Lifecycle | Basis |
|---|---|---|---|
| 1756-ENBT | ControlLogix EtherNet/IP Module 1756-ENBT | Discontinued 31/12/2021 | named by Rockwell |
Migration notes
- The Rockwell lifecycle page lists 1756-EN2T as the functional replacement.
- ControlLogix 5560 controllers (1756-L61…L65) were discontinued on 01/06/2017; the product pages list Functional Replacement but name no catalog number, so the ControlLogix 5580 numbers in the table are TDL proposals sized by memory. The 1756-CNB/CNBR ControlNet modules have Rockwell-named replacements (1756-CN2/CN2R); for the 1756-DHRIO and 1756-RIO the Rockwell pages name no replacement.
Lifecycle status changes over time: confirm the current status on the Rockwell product page or in the Product Compatibility and Download Center before ordering.
Related technical articles
- FLEX I/O 1794 to FLEX 5000 (5094) Migration: When to Move, Equivalent Modules, Terminal Bases, Software
- Remote I/O on EtherNet/IP: Choosing POINT I/O, Compact I/O, Compact 5000 or FLEX 5000 Adapters
- 1756-ENBT end of life — replace with 1756-EN2T, EN2TR or EN4TR?
- DLR or PRP: Choosing Redundancy for an EtherNet/IP Network
- What to check on a ControlLogix redundancy system before FAT: a checklist for 5580 and 5570
Related services: Lifecycle review and spare parts Rockwell Automation upgrades ControlLogix in TDL Projects
Sources
- Rockwell Automation, Rockwell product page 1756-EN2T — read on 30 October 2026
- TDL, End-of-life lookup: 1756-ENBT