What replaces 1756-ENBT?
ControlLogix EtherNet/IP communication module
Original part
1756-ENBT · Allen-Bradley · Communication modules
Lifecycle: discontinued. Last verified: 2026-10-04.
Chassis-mounted EtherNet/IP interface; one 10/100 Mbps RJ45 port; 64 TCP connections.
Official successor / replacement
The following successor or functional replacement is listed by the manufacturer. This does not confirm a drop-in replacement or current availability.
1756-EN2T
ControlLogix EtherNet/IP communication module · OEM designation: Functional replacement
| Claim | Source | Source type | Verification status | Confidence | Verified date |
|---|---|---|---|---|---|
| Functional replacementOEM lists 1756-EN2T as Functional Replacement. | Rockwell Automation — 1756-ENBT replacement | Manufacturer page | Verified | High | 2026-10-04 |
Known alternatives
No other verified alternative is published for this part. Similar numbering or channel count does not establish compatibility.
Compatibility checks
- Controller support and module series — needs confirmation
- Network speed, topology, and connection capacity — needs confirmation
- Backplane current, chassis slot, and wiring — needs confirmation
- Firmware and engineering configuration — needs confirmation
Check dimensions and electrical specifications before installation. Confirm the successor’s own lifecycle before sourcing it.
Evidence
| Claim | Source | Source type | Verification status | Confidence | Verified date |
|---|---|---|---|---|---|
| Identity1756-ENBT: ControlLogix EtherNet/IP communication module. | Rockwell Automation — 1756-ENBT | Manufacturer page | Verified | High | 2026-10-04 |
| LifecycleOEM states discontinued on 2021-12-31. | Rockwell Automation — 1756-ENBT | Manufacturer page | Verified | High | 2026-10-04 |
| SpecificationsChassis-mounted EtherNet/IP interface; one 10/100 Mbps RJ45 port; 64 TCP connections. | Rockwell Automation — 1756-ENBT | Manufacturer page | Verified | High | 2026-10-04 |
OEM successor vs compatible replacement · Allen-Bradley parts