Excellent PLC
Product Introduction
The Allen-Bradley 1738-AENT EtherNet/IP Adapter is a dedicated ArmorPoint I/O communication adapter designed to enable high-performance Ethernet-based connectivity between distributed field-level I/O devices and Rockwell Automation control systems. As a core component of the ArmorPoint I/O platform, it allows decentralized I/O stations to communicate efficiently over EtherNet/IP networks.
The adapter is engineered for direct installation at the machine level, supporting harsh industrial environments where traditional control cabinet mounting is impractical. Its robust mechanical design and high ingress protection ratings ensure reliable operation in applications exposed to dust, moisture, vibration, and wash-down conditions.
By serving as an EtherNet/IP network interface, the 1738-AENT enables deterministic cyclic data exchange between field devices and controllers. This architecture improves system responsiveness, simplifies wiring structures, and enhances overall diagnostic capability, making it suitable for modern distributed automation systems.
Product Specifications
| Parameter | Specification |
|---|---|
| Product Series | ArmorPoint (Bulletin 1738) |
| Component Type | Fieldbus I/O Communications Module |
| Communication Interface | EtherNet/IP |
| On-Board Communication Ports | Ethernet/IP Port |
| Communication Port Speed (Min.) | 10 Mbit/s |
| Communication Port Speed (Max.) | 100 Mbit/s |
| Supported Communication Protocols | EtherNet/IP, EtherNet/OCPP |
| Power Supply | 24 V DC |
| Ingress Protection Rating | IP65 / IP66 / IP67 / IP69K |
| Operating Temperature (Min.) | –20 °C |
| Operating Temperature (Max.) | 60 °C |
| Storage Temperature (Min.) | –40 °C |
| Storage Temperature (Max.) | 85 °C |
| Relative Humidity (Max.) | 95 % RH (non-condensing) |
| Dimensions | 112 × 72 × 65 mm |
| Weight | 0.36 kg |
Applications
• Distributed machine-level I/O systems where field devices are installed directly on production equipment
• Packaging and bottling lines requiring compact I/O solutions with fast Ethernet communication
• Material handling systems such as conveyors, sorters, and automated storage solutions
• Automotive and discrete manufacturing environments demanding rugged, wash-down-rated components
• Process automation skids where decentralized I/O improves wiring efficiency and fault isolation
Advantages
• Rugged industrial design suitable for harsh environments with high ingress protection ratings
• Direct EtherNet/IP integration, enabling seamless communication with Rockwell Automation controllers
• Reduced wiring complexity by locating I/O close to sensors and actuators
• Scalable I/O architecture, allowing flexible expansion of ArmorPoint I/O modules
• Stable real-time data exchange, supporting deterministic control performance
• Simplified diagnostics and maintenance, improving system uptime and troubleshooting efficiency
