Allen-Bradley 1794-ACNR15 - ControlNet Adapter Module

Allen-Bradley 1794-ACNR15 Redundant ControlNet Adapter

Core Technical Specifications

• Brand & Manufacturer: Allen-Bradley
• Model Number: 1794-ACNR15
• Product Type: Redundant Media ControlNet Adapter
• Communication Ports: Two (2) ControlNet BNC ports
• ControlNet Protocol: Version 1.25
• Data Transfer Speed: 5 Megabits per second (Mbps)
• Input Voltage Range: 19.2 to 31.2 Volts DC (Nominal 24V DC)
• Maximum Current Draw: 450 mA
• Power Consumption: 400 mA maximum from external supply

Key Features & Redundancy Benefits

• The 1794-ACNR15 implements a fully redundant ControlNet data highway for maximum network uptime.
• It supports up to 8 Flex I/O modules in any combination (discrete, analog, specialty).
• Automatic data rerouting occurs if one ControlNet trunk connection fails.
• Clear LED indicators show I/O status, Comm A, and Comm B status for easy monitoring.
• The module provides 640 mA maximum on the FlexBus to power connected I/O modules.

Environmental & Durability Specifications

• Operating Temperature: -20 to 55 °C (-4 to 131 °F)
• Relative Humidity: 5-95% non-condensing
• Vibration Resistance: 5g from 10 to 500 Hz (IEC 60068-2-6).
• Operating Shock Resistance: 30g peak acceleration (IEC 60068-2-27).
• Enclosure Rating: Open-style, requires mounting in a suitable protective enclosure.
• Power Dissipation: 3.4W maximum at 19.2V DC.

Installation & Wiring Instructions

• Use standard Belden RG-6/U or equivalent coaxial cable for ControlNet connections.
• For power wiring, use 0.33...2.5 mm² (22...12 AWG) copper wire rated for 75°C.
• Mount the module securely on a DIN rail using a torque of 7 pound-inches.
• The module can handle an inrush current of 23A for 2 milliseconds.
• Ensure proper grounding and install within an enclosure for environmental protection.

Frequently Asked Questions (FAQ)

• Q: Is this a genuine new Allen-Bradley product in stock?
  A: Absolutely. We supply only brand new, authentic 1794-ACNR15 adapters from Rockwell Automation, and we maintain ready stock.
• Q: How does the redundancy feature work?
  A: The dual ControlNet ports connect to separate network trunks. If one fails, communication automatically switches to the other without interruption.
• Q: What is the maximum number of I/O modules supported?
  A: A single 1794-ACNR15 adapter can manage a bank of up to 8 Flex I/O modules on the network.
• Q: What are your shipping and return policies?
  A: We process orders promptly and ship via express carriers. A standard 30-day return policy applies for your peace of mind.
• Q: What are the key electrical specifications?
  A: It requires 24V DC power (19.2-31.2V range), draws up to 450 mA, and provides 640 mA to the FlexBus.

Contact Information Inquiries: Email us at sales@nex-auto.com or connect on WhatsApp: +86 153 9242 9628.

Partner: NexAuto Technology Limited