

The 1756-EN2TXT is a premium EtherNet/IP communication module engineered by Allen-Bradley for the ControlLogix platform. This module delivers deterministic, high-speed data exchange between controllers, I/O devices, and enterprise systems, supporting up to 256 TCP/IP connections and 512 CIP connections. With dual RJ45 ports supporting Device Level Ring (DLR) technology, the 1756-EN2TXT ensures network redundancy and fault tolerance critical for process control and discrete manufacturing. It is fully compliant with ODVA’s EtherNet/IP specifications and offers seamless integration with Rockwell Automation’s Studio 5000 environment. The module is housed in a rugged metal enclosure, designed for extended temperature ranges and vibration resistance, making it ideal for harsh industrial environments.
| Parameter | Specification |
|---|---|
| Product Type | EtherNet/IP Communication Module |
| Series | ControlLogix 1756 |
| Model | 1756-EN2TXT |
| Network Interface | 2 x RJ45 (10/100 Mbps, full-duplex) |
| Topology Support | Star, Linear, Device Level Ring (DLR) |
| Maximum TCP/IP Connections | 256 |
| Maximum CIP Connections | 512 |
| Data Rate | 10/100 Mbps auto-negotiating |
| Protocol Support | EtherNet/IP, CIP Safety, CIP Sync, CIP Motion |
| Power Supply Voltage | 24V DC (via backplane, typical 1.5A) |
| Power Dissipation | 6.5W typical |
| Operating Temperature | -20°C to +70°C (-4°F to +158°F) |
| Storage Temperature | -40°C to +85°C (-40°F to +185°F) |
| Relative Humidity | 5% to 95% non-condensing |
| Vibration Resistance | 5g Standard Models 10-500 Hz (operating) |
| Shock Resistance | 30g (operating) |
| Enclosure Rating | IP20 (open-style) |
| Mounting | 1756 chassis slot (hot-swappable) |
| Dimensions (H x W x D) | 144 x 35 x 128 mm (5.67 x 1.38 x 5.04 in) |
| Weight | 0.36 kg (0.79 lb) |
| Certifications | CE, UL, cUL, ATEX, IECEx (Zone 2) |
| Software Compatibility | Studio 5000 v20 or later, RSLinx Classic |
| Warranty | 2 years (standard) |

What Does Our Clients Say
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Great product!
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