Allen-Bradley 1756-ENBT ControlLogix Ethernet Module
Allen-Bradley 1756-ENBT ControlLogix EtherNet/IP bridge (10/100 copper, 1st generation), EtherNet/IP bridge module, 10/100 Mbps copper (single port). NJT Automation sources the 1756-ENBT on request; send the part number for a replacement or repair quote.
Quote required. Request a quote below for pricing and delivery.
| Part Number | 1756-ENBT |
| Price | On Request Previously sold for $129.99 - $1,199.99 USDAvailability and condition determine final quote. |
| Description | ControlLogix EtherNet/IP bridge (10/100 copper, 1st generation). |
| Shipping | UPS Ground included | Next-Day Air and Worldwide Shipping available at checkout |
| Warranty | 1-year full-function warranty provided by NJT Automation. Warranty details
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| Returns | 90-day free returns. View return policy |
| Exchange | Send us your defective 1756-ENBT after your purchase for a 10% core credit. We also purchase old or damaged parts outright. |
| Availability | Sourced on request We do not have a 1756-ENBT on the shelf right now. We can source one through our supplier network; request a quote and we confirm availability, price and lead time before you commit. | ||||||||||||||||
| Sourcing | Sourced through our Level 1 network of vetted US suppliers. Each unit is checked before it ships and carries the same NJT warranty and return policy as our own stock. Quotes within one hour during business hours; typical delivery 3–5 business days, next-day air available. Sourced parts are not available for local pickup. | ||||||||||||||||
| Repairs | 1756-ENBT Mail-In Repair Service | ||||||||||||||||
Part Number Decoder | ControlLogix EtherNet/IP bridge (10/100 copper, 1st generation) 1756ENBT EtherNet/IP bridge module, 10/100 Mbps copper (single port); the original ControlLogix Ethernet bridge (64 TCP / 128 CIP connections).
Decoded from the Rockwell Automation catalog-number structure. Series and firmware revision are printed on the product label, not encoded here. | ||||||||||||||||
Series & Revisions | No series in stock today; request a series above. Series notes: Logix keys on catalog number and firmware revision, not series; with the default Compatible Module keying, any series of the same catalog number is accepted in the slot. | ||||||||||||||||
Intended Use | Intended for EtherNet/IP networking and remote I/O applications. The bridge connects a ControlLogix chassis to distributed I/O, drives, HMIs and other controllers over Ethernet, and uplinks the rack to plant and business networks. Dual-port versions build device-level ring (DLR) topologies for fault-tolerant machine networks. | ||||||||||||||||
Migration Path | Rockwell Automation has discontinued the 1756-ENBT. Published successor for the 1756-ENBT EtherNet/IP bridge: 1756-EN2T, or 1756-EN2TR where a Device Level Ring or dual ports are wanted.
A like-for-like replacement or a repair keeps the existing program, wiring and panel layout; a migration is a project. Both are listed on this page so the choice can be made on lead time and budget. | ||||||||||||||||
Physical Data | Weight and DimensionsWeight0.62 lb (0.28 kg)H × W × D5.7 × 1.4 × 5.7 in. (145 × 35 × 145 mm)
Product weight and dimensions are typical manufacturer-published values and may differ by series or option. Shipping box and weight are estimates for freight planning; the packed unit may ship in a different box. | ||||||||||||||||
Datasheet | Datasheet available for download Generated from product specifications; not an official Allen-Bradley datasheet. For an official datasheet, contact Allen-Bradley or an authorized distributor. | ||||||||||||||||
Similar Part Numbers |
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Allen Bradley Information | Technical Specifications8 parameters from manufacturer-published specifications
Typical manufacturer-published values for this catalog number; confirm against the current manufacturer documentation before specifying. | ||||||||||||||||
| Category | ControlLogix | ||||||||||||||||
| Part Number | 1756-ENBT | ||||||||||||||||
| Manufacturer | Allen-Bradley | ||||||||||||||||
Previously sold 1756-ENBT
6 soldNJT Automation has supplied and shipped 6 1756-ENBT ControlLogix EtherNet/IP bridges since 2024; request a quote and we will source another from our supplier network.
- Sold
- 6 since 2024
- Series
- A × 6
Can the 1756-ENBT be repaired?
Yes. NJT Automation repairs the 1756-ENBT by mail-in: diagnostic evaluation, component-level repair and a functional test, backed by a 1-year full-function warranty.
NJT managed repair. No evaluation fee; no repair, no charge. Prepaid UPS label both ways, $650 minimum, rush available. 1-year full-function warranty included, 2- and 3-year options.
Compare quotes from independent repair technicians. Post your repair on RepairMode to receive competitive bids from experienced technicians. Each technician sets their own pricing and warranty.
Find a PLC repair specialiston RepairMode.com ↗Common failures
Failure patterns we regularly see on ControlLogix EtherNet/IP bridge (10/100 copper, 1st generation) hardware like the 1756-ENBT:
- Scrolling display / IP address display blank while the module still passes traffic
- Module drops all CIP connections under load and recovers only after a power cycle
- Ethernet port failure: no link LED, or link flapping with a known-good cable and switch port
- Solid red OK LED at power-up (module hardware fault) or module not seen in RSLinx
- Overheating when the module runs near its connection limit in a sealed enclosure
Photos by NJT Automation; test videos from NJT or network repair technicians.
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