Allen-Bradley 1756-EN2TRXT EtherNet/IP Communication Module
$123.00
$320.00
Description
Allen-Bradley 1756-EN2TRXT EtherNet/IP Communication Module
Configured for deterministic EtherNet/IP data exchange and ControlLogix backplane integration in ControlLogix chassis networks, the Allen-Bradley 1756-EN2TRXT (1756-EN2TRXT High Performance Bridge w/ Embedded Switch) provides direct physical routing of CIP traffic between controller tasks and distributed Ethernet nodes across dual copper interfaces with embedded switching logic.
Suffix Breakdown & Model Matrix
No explicit manufacturer-defined suffix decomposition is provided for 1756-EN2TRXT.
Base designation remains 1756-EN2TRXT ControlLogix EtherNet/IP communication module with extended temperature capability.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1756-EN2TRXT |
| Brand | Allen-Bradley |
| Weight | 0.40 kg |
| Power Consumption | 5.1 W |
| Module Type | High Performance EtherNet/IP Bridge |
| Backplane Current (5.1 VDC) | 1 A |
| Ethernet Ports | 2 × RJ45 Cat 5 |
| Speed | 10/100 Mbps |
| TCP/IP Connections | Up to 128 |
| Logix Connections | Up to 256 |
| USB Interface | USB 1.1 Full-Speed (12 Mbps) |
| Slot Width | 1 slot |
| Mounting | ControlLogix chassis (any slot) |
| Enclosure | Open style |
ControlLogix Backplane Bus Communication & EtherNet/IP Switching Architecture
The module integrates embedded switch logic with ControlLogix backplane bus communication velocity handling, enabling synchronized CIP packet routing between Logix tasks and external Ethernet nodes. Dual-port architecture supports linear, star, and device-level ring topologies without external switching layers. I/O density scaling is managed through Logix connection allocation tables, while firmware-level mapping maintains deterministic EtherNet/IP scheduling under mixed TCP/IP and CIP traffic loads.
Frequently Asked Questions (FAQ)
Q: Does the 1756-EN2TRXT support hot-swap in an active chassis?
A: Yes. The module supports hot insertion with automatic backplane re-enumeration and connection recovery.
Q: What is the effect of full Logix connection utilization on backplane load?
A: At maximum connection allocation (256 Logix connections), the module maintains stable 1 A @ 5.1 VDC backplane draw.
Q: Can the embedded switch operate independently of the ControlLogix backplane?
A: Yes. Ethernet switching functions remain active while backplane communication is maintained for Logix integration.
Field Installation Guidelines
Insert the module into any available ControlLogix chassis slot ensuring full backplane connector engagement. Maintain correct alignment to prevent intermittent CIP communication faults. Use shielded Cat 5 Ethernet cabling with proper shield termination at cabinet ground reference. Avoid parallel routing with high-voltage conductors to reduce EMI coupling. Verify controller firmware compatibility prior to commissioning to ensure correct Logix connection mapping and EtherNet/IP routing behavior.
Features
Minimum Order Quantity (MOQ)
We welcome bulk orders and have a minimum order quantity of just one unit.
Certificates and Documentation
Upon request, we can provide all necessary documentation, including Certificates of Origin/Conformance and other required export documents.
Delivery Time
For items in stock, we aim to deliver within 1-3 days after payment confirmation. Items with specified lead times will be delivered according to the quoted schedule.
Payment Methods
We accept 100% T/T (Telegraphic Transfer) payment before shipping. For items with lead times, a 30% deposit is required upfront, with the remaining 70% due before shipment. For RMB transfers, please contact us if you have an agent in China.
Warranty
We offer a standard one-year warranty on all new and original items. If you require an extended warranty, please contact us for additional cost details.
Refund and Return Policy
Your satisfaction is important to us. If you need to return an item, it must be done within 30 days of the order date. The product must be unused, unopened, and in its original packaging with all accessories included. Refunds are processed within 5-7 business days after we receive the returned item. Please note that shipping and related charges are non-refundable.
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