Product Overview

The Allen-Bradley 1783-ETAP is a high-performance, three-port EtherNet/IP tap designed to provide high-speed networking flexibility for industrial automation systems. This module serves as a bridge for hardware that lacks an integrated switch, allowing standalone devices to participate in sophisticated Device Level Ring (DLR) and linear network topologies. By utilizing this embedded switch technology, engineers can achieve network redundancy and localized data distribution without the cost or cabinet space required for a traditional managed switch.

Constructed for reliability in demanding factory environments, the 1783-ETAP ensures that time-critical I/O data remains consistent. It effectively manages traffic at the device level, allowing for "daisy-chaining" of controllers, drives, and I/O modules while maintaining the low-latency communication required for high-speed manufacturing lines.

Network Architecture and Functional Benefits

The 1783-ETAP is engineered to solve common industrial networking challenges, specifically the integration of legacy or single-port hardware into modern redundant loops.

• DLR Capability: Fully supports Device Level Ring (DLR) technology, enabling a single-fault tolerant ring topology that provides high system availability.

• Topology Flexibility: Allows for the seamless transition between star, linear, and ring architectures, making it easier to scale conveyor systems and assembly cells.

• Simplified Configuration: One port can be designated as a ring supervisor through standard Rockwell software, automating the recovery path in the event of a cable break.

• Enhanced Diagnostics: Integrated LED indicators provide real-time status of link activity, speed, and DLR ring integrity, facilitating rapid on-site troubleshooting.

Technical Specifications

• Manufacturer: Allen-Bradley (Rockwell Automation)

• Model Number: 1783-ETAP

• Network Interface: 3 Copper RJ45 Ports

• Ethernet Speed: 10/100 Mbps (Full or Half Duplex)

• Input Voltage: 24V DC Nominal (20.4–27.6V DC range)

• Power Consumption: 4.8 Watts maximum

• Current Draw: 200 mA @ 24V DC

• Isolation Voltage: 30V (continuous), Basic Insulation Type

• Operating Temperature: -25°C to 60°C (-13°F to 140°F)

• Weight: 0.35 kg (0.77 lbs)

• Dimensions: 15.5 x 14.0 x 10.7 cm

Applications and Industrial Use Cases

• Packaging and Conveyance: Ideal for connecting distributed I/O across long production lines where a ring topology prevents total system failure if one cable is damaged.

• Material Handling: Integrating single-port Variable Frequency Drives (VFDs) into a centralized control network.

• Process Control: Ensuring redundant communication paths for sensors and actuators in critical chemical or food processing environments.

• Space-Constrained Panels: Replacing large, rack-mounted switches with compact, DIN-rail mounted taps to save significant rail space.