1734-AENT EtherNet/IP Communication Module | Allen-Bradley Point I/O

Overview

The Allen-Bradley 1734-AENT is a Point I/O EtherNet/IP adapter module that enables distributed I/O systems to seamlessly integrate into Ethernet networks.
It provides high-speed data exchange and flexible I/O expansion, making it suitable for industrial applications requiring modular control and efficient communication between controllers and field devices.
This adapter allows multiple I/O modules to connect through a single Ethernet node, reducing wiring complexity and installation time.

Technical Specifications

• Manufacturer: Allen-Bradley (Rockwell Automation)

• Model / Part Number: 1734-AENT

• Product Type: Point I/O EtherNet/IP Communication Adapter

• Series: Bulletin 1734 Point I/O

Electrical Characteristics

• Input Voltage Range: 10…28.8V DC

• Nominal Input Voltage: 24V DC

• Power Consumption: 4.5 W max @ 28.8V DC

• Power Dissipation: 15.5 W max @ 28.8V DC

• PointBus Output Current: 1 A max @ 5V DC (±5%)

• Input Protection: Reverse polarity protected

• Thermal Dissipation: 9.5 BTU/hr max @ 28.8V DC

Communication & Network

• Communication Protocol: EtherNet/IP

• Network Speed: 10/100 Mbps, half/full duplex auto-negotiation

• Supported Topologies: Star, linear, and device-level ring (DLR)

• IP Addressing: DHCP, BOOTP, or static configuration

• Maximum Number of I/O Modules: 63 per adapter

• LED Indicators: Network status, module status, and PointBus status

Mechanical & Environmental Specifications

• Dimensions (H × W × D): 133.5 × 54.9 × 76.2 mm

• Weight: 0.3 kg (0.66 lb)

• Mounting Type: DIN rail (IEC/EN 60715)

• Enclosure Type: Open-style (IP20)

• Isolation Voltage: 1800V DC for 60 seconds

• Operating Temperature: 0°C to +55°C (32°F to 131°F)

• Storage Temperature: −40°C to +85°C (−40°F to 185°F)

• Relative Humidity: 5–95% non-condensing

• Vibration: 5 g @ 10–500 Hz

• Shock Resistance: 30 g operating, 50 g non-operating

Application Notes

The 1734-AENT module is used in distributed I/O systems for process control, packaging machinery, and automotive manufacturing.
It supports real-time communication with Logix controllers over EtherNet/IP networks, ensuring deterministic performance and reliable operation.
Its modular design allows engineers to add or remove I/O points without disrupting network communication.

FAQ

Q: What is the maximum number of Point I/O modules supported by the 1734-AENT?
A: Up to 63 Point I/O modules can be connected per adapter.

Q: Does the adapter support redundant Ethernet connections?
A: Yes, it supports Device-Level Ring (DLR) topology for network redundancy.

Q: How is the module powered?
A: The adapter operates on a 24V DC supply, with reverse polarity protection included.

Q: Is configuration possible via USB?
A: No, configuration is handled over Ethernet using Studio 5000 or BOOTP/DHCP tools.