Allen-Bradley 1734-AENTR Point I/O Dual-Port EtherNet/IP Adapter Module

Configured for high-speed industrial network communication in Point I/O backplane architectures, the Allen-Bradley 1734-AENTR (1734-AENTR EtherNet/IP Adapter Module) provides direct physical/electrical execution. The adapter converts 10/100 Mbps EtherNet/IP packet traffic into internal Pointbus backplane protocols, bridging controller commands directly to local expansion I/O modules.

Hardware Specifications

Industrial Control & Backplane Communication Properties

As a primary network interface adapter within Allen-Bradley distributed automation platforms, the 1734-AENTR incorporates dedicated communication routing and power management features:

• Profinet / EtherNet/IP Deterministic Networks: Features dual 10/100 Mbps Ethernet ports supporting Device Level Ring (DLR), linear, and star network topologies to deliver real-time CIP implicit and explicit messaging.
• Backplane Bus Communication Velocity: Manages high-speed data exchanges across the local Pointbus backplane, supplying up to 400 mA @ 24 VDC of field-side power to drive connected expansion cards.
• Firmware Flash Compatibility: Supports field firmware flashing to update network stack protocols and maintain compatibility across dynamic Logix platform hardware revisions without disturbing physical terminal wiring.

Frequently Asked Questions

Q: What is the maximum inrush current handling capacity of the 1734-AENTR upon system power-up?

A: The module handles a maximum inrush current of 6 A for a duration of 10 ms at 28.8 VDC.

Q: What network communication speeds and topologies are supported by the module?

A: The adapter supports dual-port 10/100 Mbps EtherNet/IP communication in full or half-duplex, enabling Device Level Ring (DLR), star, and linear topologies.

Q: What is the continuous isolation voltage rating between the field bus power and internal logic?

A: The module maintains a continuous isolation voltage rating of 50 V.

Field Installation Guidelines

Proper mechanical and electrical installation procedures ensure reliable network throughput and stable backplane power distribution:

• Mechanical Mounting on DIN Rail: Securely latch the adapter onto a grounded 35 mm DIN rail. Ensure end anchors are clamped firmly on both sides of the Point I/O stack to prevent lateral movement and backplane disconnects.
• Network Wiring and Topology Setup: Connect industrial-grade shielded RJ45 CAT5e/CAT6 cables to the dual Ethernet ports. Ground cable shields at the cabinet entry point to prevent electromagnetic interference from causing packet loss on DLR loops.
• Power Supply Wiring: Connect a clean 24 VDC power source to the input terminals. Verify that the combined fieldbus power current load through the internal bus bar does not exceed the 10 A maximum rating.