Allen-Bradley CompactLogix Ethernet/IP Adapter for 1769 I/O Systems

Overview of the Allen-Bradley 1769-AENTR Adapter

For connecting 1769 Compact I/O to Ethernet networks, the Allen-Bradley 1769-AENTR provides a powerful communication adapter solution.
This CompactLogix module features two built-in Ethernet communication ports that function as an embedded switch.
Specifically, the 1769-AENTR supports Linear, Star, and Device Level Ring (DLR) topologies for flexible network design.
In addition, the adapter enables system expansion without controller limitation for growing applications.
With 128 logical connections and 96 TCP/IP connections, this module handles substantial communication loads.
Furthermore, the 1769-AENTR allows control migrations while reusing existing 1769 I/O investments.
Accordingly, this adapter simplifies system architecture and minimizes migration costs significantly.

Technical Specifications of the 1769-AENTR Module

Below are the complete technical parameters for this Ethernet/IP adapter.

Dual Ethernet Ports and Embedded Switch Functionality

Two built-in Ethernet ports give the 1769-AENTR embedded switch functionality for flexible networking.
These ports support 10/100 Mbps transmission speeds for standard industrial Ethernet networks.
For topology options, you can configure Linear, Star, or Device Level Ring (DLR) arrangements.
In a DLR topology, the Allen-Bradley 1769-AENTR participates actively in ring recovery.
The embedded switch eliminates the need for external switches in simple linear or ring networks.
For star topology, connect each port to separate switch ports for traditional network architecture.
Thus, the 1769-AENTR adapts to your existing network infrastructure without additional hardware.

Device Level Ring (DLR) Support

The 1769-AENTR fully supports Device Level Ring topology for high network availability.
DLR provides fast fault recovery if a network cable breaks anywhere in the ring.
In a DLR configuration, the Allen-Bradley 1769-AENTR acts as a ring node participant.
The module automatically detects ring faults and re-routes traffic within milliseconds.
For critical applications, DLR offers redundancy without the cost of paralleled switches.
The 1769-AENTR works seamlessly with other DLR-capable devices on the same ring.
Consequently, your control system maintains communication even during cable failures.

Logical and TCP/IP Connection Capacity

The 1769-AENTR supports 128 logical connections for extensive communication requirements.
These logical connections handle messaging between the adapter and various controllers.
For TCP/IP connections specifically, the Allen-Bradley 1769-AENTR supports 96 simultaneous connections.
Each TCP/IP connection represents a separate communication session with a remote device.
This high connection capacity suits applications with many HMI, SCADA, or controller connections.
The adapter manages all connections efficiently without compromising communication speed.
Thus, the 1769-AENTR integrates easily into large, multi-device control networks.

Hardware IP Address Configuration

Rotary switches on the 1769-AENTR provide hardware-based IP address configuration.
This mechanical addressing method eliminates the need for software tools during setup.
The rotary switches set the last octet of the IP address for simple identification.
For the IP address, the Allen-Bradley 1769-AENTR uses a Class C scheme with switch-defined host portion.
You can set the IP address without powering up the module or connecting a computer.
This feature simplifies replacement procedures when a module fails in production.
Consequently, maintenance personnel can restore communication quickly without special training.

Power Supply and Current Draw

The 1769-AENTR draws its power from the 1769 backplane through the DIN rail bus.
Current draw at 5V DC measures 500 mA under normal operating conditions.
For power supply distance rating, the Allen-Bradley 1769-AENTR follows standard 1769 system rules.
The module occupies only 1 slot in the 1769 I/O chassis for compact installation.
Unlike some adapters, the 1769-AENTR does not require an external power supply connection.
All necessary power comes through the bus connector from the adjacent power supply.
Thus, installation wiring remains simple and clean within the control cabinet.

Isolation and Electrical Protection

The 1769-AENTR provides isolation voltage of 50V continuous for electrical protection.
Basic insulation type applies to the communication ports and backplane interface.
The Allen-Bradley 1769-AENTR withstands testing at 710V DC for 60 seconds.
This high test voltage ensures safe operation in industrial electrical environments.
The isolation prevents ground loops and reduces noise interference on communication lines.
For field wiring, follow standard Ethernet isolation practices for best results.
Thus, the 1769-AENTR protects both the module and connected equipment from electrical faults.

I/O Packet Rate and Performance

The 1769-AENTR achieves an I/O packet rate up to 10,000 packets per second.
This high packet rate supports fast, deterministic I/O updates for control applications.
For distributed I/O, the Allen-Bradley 1769-AENTR handles demanding cyclic data exchange.
The adapter processes both implicit (I/O) and explicit (messaging) traffic simultaneously.
For real-time control, the high packet rate ensures responsive I/O behavior.
The 1769-AENTR maintains consistent performance even under heavy network loads.
Consequently, your control system receives timely I/O data for reliable operation.

Cabling and Connector Requirements

For the 1769-AENTR, use RJ45 connectors complying with IEC 60603-7 standard.
For cable types, use 2 or 4 pair Category 5e minimum per TIA 568-B.1 specification.
Alternatively, use Category 5 cable according to ISO/IEC 24702 for standard installations.
The Allen-Bradley 1769-AENTR supports standard Ethernet patch cables for short runs.
For longer distances, use solid-core cable with proper termination at both ends.
Shielded cable is recommended for industrial environments with high electrical noise.
Thus, proper cabling ensures reliable communication at full 100 Mbps speed.

Environmental Specifications

The 1769-AENTR operates reliably across standard industrial temperature ranges.
Operating temperature spans 0 to 60 degrees Celsius for typical control room environments.
For storage, the module tolerates wider temperature extremes between -40 and 85°C.
The Allen-Bradley 1769-AENTR requires no special cooling under normal conditions.
For humidity, the module operates in 5 to 95% non-condensing environments.
DIN rail mounting provides adequate heat dissipation through the metal rail.
Thus, the 1769-AENTR suits most factory automation applications without derating.

Certifications and Standards Compliance

The 1769-AENTR carries multiple international certifications for global deployment.
c-UL-us certification covers United States and Canadian safety requirements.
CE marking declares conformity with all relevant European Union directives.
RCM certification permits sale in Australia and New Zealand markets.
Ex certification allows installation in hazardous locations as specified.
KC certification meets Korean Communications Commission requirements.
EtherNet/IP certification ensures interoperability with other CIP-compliant devices.

Application Integration and System Architecture

The 1769-AENTR enables a single network strategy using EtherNet/IP throughout the system.
You can connect Human Machine Interface (HMI) devices, especially PanelView products.
Similarly, the adapter communicates with Supervisory Control and Data Acquisition (SCADA) systems.
For controller-to-controller messaging, the Allen-Bradley 1769-AENTR handles explicit messaging efficiently.
The adapter allows manufacturers to meet application needs without multiple control platforms.
When upgrading to new CompactLogix controllers, reuse your existing 1769 I/O investment.
Consequently, the 1769-AENTR reduces spare parts inventory by standardizing I/O platforms.

Installation Guidelines for the 1769-AENTR Adapter

Follow these steps to install the Allen-Bradley 1769-AENTR correctly.

1. First, remove power from the 1769 system completely before installation.

2. Mount the DIN rail securely in your control cabinet with proper grounding.

3. Clip the 1769-AENTR onto the DIN rail at the desired location.

4. Slide adjacent 1769 modules together to engage the bus connectors.

5. Set the IP address rotary switches to your desired host octet value.

6. Connect Ethernet cables to the two RJ45 ports on the 1769-AENTR.

7. For DLR topology, connect both cables to form a complete ring.

8. Apply power and observe the module status LEDs for proper operation.

9. Configure the IP address and network parameters in your software.

10. Finally, verify communication with the I/O modules and controllers.

Only trained automation technicians should install this Ethernet adapter.

Package Contents for the Allen-Bradley 1769-AENTR

• One Allen-Bradley 1769-AENTR CompactLogix Ethernet/IP adapter

• DIN rail mounting clips pre-installed on the module

• Removable terminal block cover for protection

• Quick start installation instruction sheet

Common FAQs About This Allen-Bradley 1769-AENTR Module

Q1: What topologies does the 1769-AENTR support?
A1: The Allen-Bradley 1769-AENTR supports Linear, Star, and Device Level Ring (DLR) topologies. DLR provides fast fault recovery for critical applications requiring high network availability.

Q2: How many connections does this adapter support?
A2: The 1769-AENTR supports 128 logical connections and 96 TCP/IP connections. This capacity suits applications with multiple HMI, SCADA, or controller connections.

Q3: How do I configure the IP address without software?
A3: The Allen-Bradley 1769-AENTR uses hardware rotary switches for IP address configuration. These switches set the last octet of the IP address mechanically.

Q4: Does this module support both simplex and redundant systems?
A4: The 1769-AENTR works in both simplex and redundant control architectures. For redundancy, multiple adapters connect across the network for failover capability.

Q5: What is the I/O packet rate of this adapter?
A5: The Allen-Bradley 1769-AENTR achieves an I/O packet rate up to 10,000 packets per second. This high rate ensures fast, deterministic I/O updates for control applications.

Typical Applications for the Allen-Bradley 1769-AENTR

The Allen-Bradley 1769-AENTR excels in distributed I/O applications using 1769 Compact I/O.
You can use this adapter for machine control systems requiring remote I/O racks.
Similarly, the adapter works well for control migrations upgrading from older CompactLogix systems.
For panel builders, the 1769-AENTR reduces I/O spare parts inventory significantly.
Manufacturing lines benefit from the single standardized I/O platform approach.
Equipment builders use this module for scalable control systems with consistent performance.
In short, any application needing remote 1769 I/O over EtherNet/IP suits the 1769-AENTR.

Ordering and Logistics Information

From our global distribution center, this Allen-Bradley 1769-AENTR Ethernet/IP adapter ships promptly.
Original factory packaging protects this sensitive electronic module during transit.
For volume pricing on Rockwell Automation CompactLogix products, please contact our team directly.
Before placing an order, always verify your system architecture and topology requirements carefully.
For urgent automation project needs, we offer express shipping options to most locations globally.