Introduction

The Allen Bradley 1797-ACNR15 ControlNet Ex Redundant Media Adapter is a high-performance solution designed for mission-critical industrial networks. By enabling redundancy, it ensures continuous communication even in the event of network disruptions.

Its compact, rugged design makes it ideal for tight control panels, while its seamless integration with existing ControlNet infrastructure minimizes deployment effort. This adapter is essential for any industrial system where uptime and reliability are top priorities.

Technical Specifications

Feature	Specification
Model	1797-ACNR15
Product Type	ControlNet Redundant Media Adapter
Network Type	ControlNet
Redundancy	Supported (automatic failover)
Dimensions (L × W × H)	94 × 92 × 87 mm
Weight	0.2 kg (0.44 lb)
Mounting Type	Panel or DIN rail compatible
Indicators	LED for status and activity
Power Supply	Bus-powered from ControlNet network
Operating Temperature	0–55°C (32–131°F)

Applications

The 1797-ACNR15 ControlNet Ex Redundant Media Adapter is designed to provide high-availability network redundancy in industrial automation systems. Typical applications include:

Factory automation requiring continuous communication for critical processes
Redundant ControlNet networks in manufacturing and processing lines
Integration with programmable automation controllers (PACs) in mission-critical environments
Remote I/O systems where network uptime is essential
Industrial systems that demand minimized downtime and reliable network performance

This adapter ensures continuous data flow by automatically switching to a redundant path in the event of a network failure.

Advantages

Redundant Network Support: Maintains uninterrupted ControlNet communication in case of cable or node failure
Compact Design: 94 × 92 × 87 mm form factor fits easily within control cabinets
High Reliability: Engineered for continuous industrial operation with minimal maintenance
Seamless Integration: Compatible with existing ControlNet infrastructure and Allen-Bradley PACs
Simplified Deployment: Plug-and-play installation reduces setup time and configuration complexity
Enhanced System Uptime: Protects critical processes from network interruptions

Technical FAQs

What is the main function of this adapter?
It provides redundant network paths for ControlNet networks, ensuring continuous communication.
Which devices is it compatible with?
Compatible with Allen-Bradley ControlNet modules and PACs.
Does it require additional configuration software?
Minimal configuration is needed; standard network settings apply.
Can it operate in high-vibration environments?
Yes, it is designed for standard industrial environments.
What is the network speed supported?
Supports full ControlNet speed (5 Mbps).
Does it support hot-swapping?
Yes, the adapter can be replaced without powering down the system.
Is it suitable for outdoor installation?
No, intended for indoor, industrial panel use only.
Does it provide status indicators?
Yes, LED indicators show network activity and redundancy status.
What is the power requirement?
Powered directly from the ControlNet bus.
Can multiple adapters be used in the same network?
Yes, multiple redundant adapters can be installed to enhance system reliability.