Allen-Bradley 1734-AENT/A POINT I/O EtherNet/IP Adapter Module

Allen-Bradley 1734-AENT/A POINT I/O EtherNet/IP Communication Adapter

The Allen-Bradley 1734-AENT/A serves as the critical network bridge connecting distributed POINT I/O modules to EtherNet/IP industrial networks. Engineered for high-performance automation environments, this Series A adapter delivers robust dual-port Ethernet connectivity with advanced Device Level Ring (DLR) topology support for network redundancy and fault tolerance.

Core Technical Parameters

• Network Protocol: EtherNet/IP (CIP on Ethernet)
• Ethernet Ports: Dual 10/100 Mbps RJ45 with auto-negotiation
• Topology Support: Device Level Ring (DLR), linear, star configurations
• I/O Module Capacity: Up to 63 POINT I/O modules per adapter
• Data Transfer Rate: 10 Mbps or 100 Mbps auto-sensing
• Network Indicators: Module status, network activity, DLR status LEDs
• Configuration Method: RSNetWorx for EtherNet/IP or Studio 5000 Logix Designer
• Operating Temperature: 0 to 60°C (32 to 140°F)
• Power Consumption: 3.5W maximum from POINT I/O backplane
• Dimensions: 40 mm × 118 mm × 87 mm (W × H × D)
• Enclosure Rating: Open-type mounting, IP20 when properly installed

Industrial Application Scenarios

Deploy the 1734-AENT/A across manufacturing floors where distributed control architecture optimizes machine performance: automotive assembly lines requiring coordinated multi-zone control, food processing facilities with sanitary zone segregation, pharmaceutical packaging systems demanding validated communication paths, or material handling conveyors spanning extensive warehouse operations. The adapter excels in water treatment plants with geographically dispersed pump stations, oil and gas facilities requiring hazardous area isolation, and building automation systems integrating HVAC, lighting, and access control subsystems.

Network Integration Solutions

Configure the adapter within managed or unmanaged Ethernet switch infrastructures, leveraging DLR for automatic network recovery in ring topologies. The dual-port design eliminates the need for external network taps during commissioning and troubleshooting. Integrate seamlessly with ControlLogix, CompactLogix, and SoftLogix controllers via standard EtherNet/IP implicit messaging for real-time I/O updates and explicit messaging for configuration and diagnostics. Pair with 1734-AENTR for redundant adapter configurations or 1734-ACNR for ControlNet network architectures.

Configuration and Commissioning

Utilize RSNetWorx for EtherNet/IP software to assign IP addresses via BOOTP/DHCP or manual configuration, define I/O module mapping, and establish connection parameters. The adapter supports electronic keying to prevent incorrect module substitution and provides comprehensive diagnostic counters for network performance monitoring. Studio 5000 Logix Designer integration enables Add-On Profile (AOP) installation for simplified controller programming with pre-built function blocks and structured data types.

Product FAQ

Q: What is the maximum cable distance between the adapter and Ethernet switch?
A: Standard Cat5e or Cat6 Ethernet cables support up to 100 meters (328 feet) between the 1734-AENT/A and network infrastructure equipment per IEEE 802.3 specifications.

Q: Can I mix different I/O module types on the same adapter?
A: Yes, the POINT I/O architecture allows flexible mixing of digital input, digital output, analog input, analog output, and specialty modules up to the 63-module limit and power budget constraints.

Q: Does the adapter support VLAN tagging for network segmentation?
A: The 1734-AENT/A does not support VLAN tagging. Network segmentation should be implemented at the managed switch level using port-based VLANs if required.

Q: What happens if one Ethernet port fails in a DLR configuration?
A: In a properly configured DLR network, the ring automatically reconfigures within 3 milliseconds of detecting a port or cable failure, maintaining continuous communication through the alternate path.

Warranty and Technical Support

Each 1734-AENT/A adapter is backed by a comprehensive 12-month manufacturer warranty covering defects in materials and workmanship. Our technical support team provides network configuration assistance, troubleshooting diagnostics, firmware update guidance, and rapid replacement coordination to minimize production interruptions.

Compatible POINT I/O Products

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