Allen Bradley 1794-ACNR15XT | FLEX I/O ControlNet Adapter

Overview

The 1794-ACNR15XT from Allen-Bradley is a FLEX I/O ControlNet adapter module designed to integrate distributed I/O into ControlNet networks. It supports up to 8 I/O modules while maintaining a compact form factor and rugged reliability.

Technical Specifications

• Brand: Allen-Bradley / Rockwell Automation

• Part Number: 1794-ACNR15XT

• Series: FLEX I/O 1794

• Type: ControlNet Adapter

• I/O Capacity: 8 modules

• Input Voltage: 19.2–31.2 VDC

• Current Consumption: 400 mA

• Peak Power Dissipation: 3.4 W at 19.2 VDC

• Dimensions: 87.4 x 94 x 92 mm

• Weight: 220 g

• Cable Type: Belden RG-6/U for ControlNet communication

Key Features

The 1794-ACNR15XT includes dual communication port indicators and I/O status LEDs for simplified diagnostics. It complies with T4A, ATEX, and IECEx temperature codes, ensuring safe operation in demanding industrial environments. Its open-style design requires proper electrostatic discharge protection and careful handling.

Installation Details

Engineers should use Category 3 wiring for power ports and Category 2 wiring for communication ports. For power, 22–12 AWG solid or stranded copper wire is recommended, with terminal screw torque not exceeding 7 in-lbs. The module integrates seamlessly into FLEX I/O systems, offering modularity and scalability.

Applications

The 1794-ACNR15XT is commonly deployed in:

• Process Control: Reliable I/O management across distributed industrial systems.

• Machine Automation: Integrating multiple FLEX I/O modules via ControlNet networks.

• Hazardous Locations: Suitable where vapors, gases, or mist are not frequently present.