Allen-Bradley 1769-AENTR CompactLogix Adapter

1769-AENTR EtherNet/IP Adapter for CompactLogix Systems

Product Introduction

The 1769-AENTR from Allen-Bradley brings reliable EtherNet/IP connectivity to your CompactLogix environment. It features two built-in Ethernet ports that function as an embedded switch. Therefore, you can easily build linear, star, or Device Level Ring (DLR) networks. This module supports up to 128 logical connections and 96 TCP/IP connections. Additionally, it allows you to reuse existing 1769 I/O during system upgrades. As a result, migration costs stay low while performance improves.

Technical Specifications of the 1769-AENTR

The 1769-AENTR operates at a communication rate of 10/100 Mbps. It supports 128 EtherNet/IP logical connections and 96 TCP/IP connections. The module draws 500 mA at 5V DC from the backplane. Its isolation voltage is 50V continuous, with a basic insulation type tested at 710V DC for 60 seconds.

Key communication features include:

• Two (2) Ethernet I/P ports with embedded switch functionality

• Topologies supported: Star, Linear, and Device Level Ring (DLR)

• Up to 128 logical connections for flexible system design

• 96 TCP/IP connections for robust data exchange

The module uses hardware rotary switches for IP address configuration. This simplifies setup and avoids software dependencies. Moreover, it supports a single-network strategy using EtherNet/IP and CIP protocols.

Mechanical and Environmental Parameters

The 1769-AENTR is a single-slot module with a compact footprint. Its dimensions are 118 x 50 x 87 mm (4.65 x 1.97 x 3.43 in.). The weight is only 0.280 kg (0.61 lb). For installation, you can mount it on a DIN rail. This saves panel space and simplifies wiring.

Operating temperature ranges from 0°C to 60°C. Therefore, it works well in most industrial environments. The module carries multiple certifications: c-UL-us, CE, RCM, Ex, KC, and EtherNet/IP. This ensures global compliance and reliable operation.

Installation Guide for the 1769-AENTR

Follow these steps to install the 1769-AENTR correctly:

1. Mount the module on a standard DIN rail. Ensure the rail is grounded properly.

2. Connect the Ethernet cables using RJ45 connectors compliant with IEC 60603-7. Use Category 5e minimum (TIA 568-B.1) or Category 5 (ISO/IEC 24702).

3. Set the IP address using the rotary switches on the module. Then power up the system.

4. Verify communication through your CompactLogix controller or network tool.

Use only shielded Ethernet cables for DLR or industrial environments. Furthermore, avoid bending cables sharply near the ports. This prevents signal degradation.

Packaging List

• 1769-AENTR module (1 unit)

• Product information sheet (printed)

• Rotary switch adjustment tool

• End cap (if required for system termination)

Note: Cables, mounting accessories, and controllers are sold separately.

Shipping Information

We ship worldwide using Fedex, UPS, and DHL. All items are packed in anti-static materials to prevent ESD damage. Tracking numbers will be provided within 24 hours after dispatch.

Frequently Asked Questions (FAQ)

1. Can I use the 1769-AENTR with an older CompactLogix system?

Yes. The 1769-AENTR is designed specifically to help you reuse existing 1769 I/O when upgrading to newer CompactLogix controllers. This protects your previous investment.

2. What is the difference between 128 logical connections and 96 TCP/IP connections?

Logical connections refer to EtherNet/IP (CIP) connections used for I/O data transfer. TCP/IP connections are lower-level socket connections. The 1769-AENTR supports 128 of the former and 96 of the latter.

3. Does this module support Power over Ethernet (PoE)?

No. The 1769-AENTR does not support PoE. It requires backplane power from the CompactLogix system (500 mA at 5V DC).

4. Can I mix star and DLR topologies on the same 1769-AENTR?

Yes. Because the two ports act as an embedded switch, you can connect one port to a star network and the other to a DLR ring. However, for best performance in ring applications, use both ports for the DLR loop.

5. What cable type is recommended for the 1769-AENTR?

For standard applications, use shielded Category 5e cable (TIA 568-B.1). For DLR networks, always use shielded cable to maintain signal integrity. The connector must comply with IEC 60603-7 (RJ45).