1734-AENTR Allen-Bradley POINT I/O Dual Ethernet Adapter
Manufacturer: Allen-Bradley
Product No.: 1734-AENTR
Condition： In stock
Product Type: Ethernet/IP Adapter
Product Origin: USA
Payment: T/T, Western Union
Weight: 540g
Shipping port: Xiamen
Warranty: 12 months
Estimate delivery times: 12-26 days (International), 3-6 days (United States).
Return within 30 days of purchase. Duties & taxes are non-refundable.
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Product Overview
The 1734-AENTR Allen-Bradley POINT I/O Dual-Port EtherNet/IP Adapter Module serves as the central communication head for distributed I/O racks.
Positioned on the far left of the DIN-rail assembly, this interface links up to 63 local expansion I/O modules directly to programmable automation controllers (PACs).
Dual embedded RJ-45 copper ports enable high-speed 10/100 Mbps communication across modern Device Level Ring (DLR), linear daisy-chain, star, and tree network architectures.
Engineers utilize this 24V DC powered adapter to process simultaneous TCP/UDP messaging from multiple PLC scanners without requiring external network routing tables.
Technical Specifications Table
| Specification Category | Technical Parameter | Engineering Value / Range |
|---|---|---|
| System Identification | Brand & Manufacturer | Rockwell Automation / Allen-Bradley |
| Product Series | POINT I/O System (Bulletin 1734) | |
| Catalog Part Number | 1734-AENTR | |
| Network & Communication | Physical Connection Interface | Dual embedded RJ-45 ports (Cat 5 / Cat 6 twisted pair) |
| Transmission Speed & Mode | 10/100 Mbits/s auto-negotiation, Full/Half-Duplex | |
| Supported Network Topologies | Device Level Ring (DLR), Linear Daisy-Chain, Star, Tree | |
| Expansion Capacity Limits | Up to 63 I/O modules; max 31 direct controller connections | |
| Power Supply & Protection | Input Voltage Rating | 24V DC nominal (10.0V to 28.8V DC field range) |
| Maximum Power Dissipation | 10.4 Watts @ 28.8V DC input voltage | |
| Overvoltage & Electrical Protection | Reverse polarity protection; 50V continuous isolation | |
| Physical & Operational | Network Address Assignment | Hardware rotary thumbwheel switches, BOOTP, or Static IP |
| Operating Temperature Range | -20°C to +60°C (-4°F to +140°F) | |
| Physical Weight & Mounting | 0.62 lbs (0.28 kg); Vertical DIN-rail mounting arrangement |
Target Equipment & Application Scenarios
- High-Availability Packaging Skids: Implements Device Level Ring (DLR) topologies to maintain continuous I/O control during single-point cable breaks.
- Multi-Controller Machine Cells: Facilitates simultaneous data exchange where separate safety and standard ControlLogix PLCs read shared field inputs.
- Modular Assembly Lines: Serves as a compact distributed drop head, routing digital and analog field signals back to centralized control cabinets over EtherNet/IP.
Advanced Diagnostic Capabilities
The unit features front-facing diagnostic LED indicators providing real-time operational status for module health, network activity, link speed, and point-bus communication integrity.
Embedded Web Server software allows field technicians to inspect packet loss statistics, IP configuration tables, and slot-by-slot module status using standard web browsers.
Automatic device recovery (ADR) support enables rapid replacement of faulty downstream expansion cards without manual re-commissioning.
Global PLC Spare HUB's Insight & Field Experience
During a network modernization project at an automotive stamping plant, intermittent EtherNet/IP dropouts regularly halted production lines using star-topology cabling.
Physical damage to a single drop line resulted in immediate downtime across downstream sub-panels.
Our automation engineering team specified upgrading the remote drops to the 1734-AENTR dual-port adapter configured in a Device Level Ring (DLR) loop.
When a physical cable break was deliberately induced during testing, the 1734-AENTR rerouted network traffic in less than 3 milliseconds without dropping controller connections.
This implementation completely eliminated network-induced line halts and restored uninterrupted production output.
Packaging, Delivery & Warranty Terms
We rigorously inspect and package every 1734-AENTR adapter in ESD-protective bubble packaging prior to dispatch.
Orders ship within 24 to 48 hours via fast global express carriers including FedEx, UPS, and DHL.
All items carry a comprehensive 12-month warranty covering operational defects and hardware failures.
Frequently Asked Questions (FAQ)
Q1: How do rotary thumbwheel switches simplify static IP addressing on the 1734-AENTR?
A1: Setting the three rotary dials (001-254) automatically assigns the final octet of a 192.168.1.xxx subnet without requiring software tool connections.
Q2: Why is enabling BOOTP/DHCP without a static lease server dangerous in production networks?
A2: Power-cycling the adapter under dynamic DHCP settings may issue a new IP address, severing active I/O communication loops with the PLC scanner.
Q3: What distinguishes a 1734-AENTR dual-port module from standard single-port 1734-AENT adapters?
A3: The dual-port design features an internal embedded Ethernet switch supporting fault-tolerant ring (DLR) and daisy-chain topologies without external switches.
Q4: What causes point-bus communication faults when exceeding power distribution limits?
A4: High module counts draw excessive current from the internal point-bus; installing a 1734-FPD field power distributor restores adequate logic voltage levels.
Q5: What critical parameters should engineers check before purchasing replacement adapter modules?
A5: Verify hardware revision compatibility, inspect DIN-rail latch mechanisms, confirm physical rotary switch condition, and ensure suppliers supply a 12-month warranty.
Tags
Q: Are these parts 100% original and new?
A: Yes. Every component is guaranteed to be 100% original, brand-new, and factory-sealed. We also provide a 12-month comprehensive warranty for your peace of mind.
Q: How fast is the shipping to my country?
A: For in-stock items, we offer same-day dispatch. International express shipping (DHL/FedEx/UPS) typically delivers within 3–5 business days worldwide.
Q: Can I get a formal quotation with shipping costs?
A: Absolutely. Our sales team is ready to provide a detailed Proforma Invoice (PI) including the most competitive shipping rates for your location.
Q: Do you offer discounts for bulk orders?
A: We provide volume-based pricing for large projects or multiple-item orders. Please contact us to get our Best Price Guarantee.
12-Month Comprehensive Warranty
Every part supplied by Global PLC Spare Hub is covered by a 12-month warranty from the date of invoice.
- Coverage: Functional defects and hardware failures under normal operating conditions.
- Commitment: We provide immediate repair, replacement, or a full refund for any verified defective components to minimize your operational downtime.
Returns & Exchange Policy
We offer a 30-day return policy to ensure you receive the exact part your system requires.
- Eligibility: Returns are accepted for uninstalled items in their original, factory-sealed packaging.
- RMA Process: Please contact our support team to obtain a Return Merchandise Authorization (RMA) number before shipping.
- Fast Processing: Refunds or exchanges are processed within 3–5 business days after the returned item passes our technical inspection.
Need Technical Assistance?Not sure if this part is compatible with your system? [Consult our Engineers] before purchasing to ensure 100% compatibility.
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