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- Allen Bradley
- 1769-AENTR
- CompactLogix I/O Module
- USA
- 118 mm × 50 mm × 87 mm
- 0.31kg
- Xiamen, China
- New & In Stock
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Technical Report: 1769-AENTR EtherNet/IP Adapter Module
1. Product Overview
The 1769-AENTR is a dual-port EtherNet/IP communication adapter designed for Compact I/O systems used in industrial automation environments. It acts as a network bridge between a Compact I/O rack and an Ethernet-based control system, enabling distributed I/O architecture over standard industrial Ethernet networks.
This module does not process analog or digital signals directly. Instead, it manages high-speed data communication between controllers and remote I/O modules, making it a key component in decentralized automation systems.
It is commonly deployed in modern control architectures where scalability, network flexibility, and remote system expansion are required.
2. Brand and Series Information
Brand: Allen-Bradley
Series: 1769 Compact I/O Series
Product Family: EtherNet/IP Communication Adapter Modules
Module Type: Remote I/O Network Adapter (Dual Port Ethernet/IP)
3. Product Functional Description
The 1769-AENTR provides communication between Compact I/O modules and EtherNet/IP networks.
Core functions include:
- EtherNet/IP network communication for distributed I/O
- Support for linear, star, and Device Level Ring (DLR) topologies
- Remote rack expansion over Ethernet
- Real-time cyclic I/O data exchange
- Integration with PLC controllers through Ethernet networks
- Dual Ethernet ports for network redundancy or daisy-chain configuration
The module allows remote I/O racks to operate as part of a centralized control system without physical backplane wiring between controllers and field devices.
4. Technical Parameters
Communication and Network Specifications
| Parameter | Value |
|---|---|
| Communication Protocol | EtherNet/IP (CIP) |
| Communication Speed | 10/100 Mbps |
| Ethernet Ports | 2 × RJ45 |
| Topologies Supported | Star / Linear / DLR |
| Maximum Connections | Up to 128 EtherNet/IP connections |
| I/O Data Capacity | High-capacity cyclic I/O exchange (controller dependent) |
| Network Configuration | DHCP / BOOTP / Static IP |
Electrical Specifications
| Parameter | Value |
|---|---|
| Backplane Voltage | 5 V DC |
| Backplane Current Draw | ~0.5 A |
| Power Dissipation | ~7–8 W |
| Isolation | Industrial communication isolation |
Mechanical Specifications
| Parameter | Value |
|---|---|
| Dimensions (H × W × D) | 118 mm × 50 mm × 87 mm |
| Mounting Type | DIN rail / chassis slot |
| Slot Width | 1 slot |
| Weight | 0.28 kg – 0.31 kg |
| Housing Material | Industrial-grade polymer enclosure |
Environmental Conditions
| Parameter | Value |
|---|---|
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Relative Humidity | 5% – 95% non-condensing |
| Vibration Resistance | Up to 2 G (10–500 Hz) |
| Shock Resistance | Up to 15 G operating |
| EMC Immunity | Industrial EMC compliance level |
5. Product Advantages
1. Dual Ethernet Port Design
Allows flexible network architectures including daisy-chain and ring topology without external switches.
2. High-Speed Deterministic Communication
Supports real-time industrial data exchange suitable for motion control and process automation.
3. Scalable Distributed I/O Architecture
Enables remote expansion of I/O racks without long-distance hardwiring.
4. Reduced Installation Complexity
Simplifies wiring by replacing traditional point-to-point I/O cabling with Ethernet communication.
5. Network Redundancy Support
DLR topology provides automatic recovery in case of network interruption.
6. High Compatibility
Works with a wide range of Compact I/O modules and EtherNet/IP-based controllers.
6. Application Areas
The 1769-AENTR is widely used in:
- Automotive manufacturing lines
- Packaging machinery systems
- Conveyor and material handling systems
- Food and beverage processing plants
- Pharmaceutical production lines
- Distributed remote I/O control systems
- Modular machine automation systems
- Factory-wide Ethernet-based control networks
It is especially suitable for systems requiring flexible expansion and decentralized control architecture.
7. Recommended Models (Same Series or Related Modules)
| Model | Type | Key Parameters | Application |
|---|---|---|---|
| 1769-SDN | DeviceNet Scanner | Network master for DeviceNet I/O | Fieldbus integration |
| 1769-ADN | DeviceNet Adapter | Remote I/O adapter for DeviceNet | Legacy distributed I/O |
| 1769-IF8 | Analog Input Module | 8-channel analog input | Process signal acquisition |
| 1769-OF2 | Analog Output Module | 2-channel analog output | Control signal output |
| 1769-IQ16 | Digital Input Module | 16-point 24V DC input | Discrete monitoring |
8. Other Popular Models (Same Brand – Widely Used)
| Model | Type | Key Parameters | Application |
|---|---|---|---|
| 1769-L33ER | PLC Controller | EtherNet/IP CPU, integrated motion control | Machine automation |
| 1769-L36ERM | PLC Controller | High-performance processor, multi-axis support | Advanced control systems |
| 1769-PB2 | Power Supply Module | 24V DC system power module | Rack power distribution |
| 1769-PA4 | AC Power Supply | 120/240V AC input power module | Industrial control power |
| 1769-ECR | End Cap Module | System termination module | Compact I/O rack completion |
9. Summary
The 1769-AENTR is a critical communication interface module in modern distributed automation systems. It enables Compact I/O racks to connect seamlessly to EtherNet/IP networks, supporting scalable and flexible industrial architectures.
Its main strengths are high-speed communication, dual-port Ethernet design, system scalability, and reduced wiring complexity, making it a standard solution for modern decentralized industrial control systems.