Allen Bradley 1756-CN2R ControlNet Module – High-Speed Industrial Communication Solution
The Allen Bradley 1756-CN2R ControlNet Module is engineered for mission-critical industrial automation systems, delivering deterministic, high-speed communication across complex network architectures. Designed for seamless integration with ControlLogix platforms, this module ensures reliable data exchange and real-time control performance in demanding environments.

Key Features
- High-Speed Communication: 100 Mbps data transfer rate ensures real-time network responsiveness for critical automation processes.
- Robust Design: Industrial-grade components withstand harsh environments (operating temperature: 0°C to 60°C).
- ControlNet Compatibility: Fully compliant with ControlNet standards for seamless integration with PLC and I/O systems.
- Compact Footprint: Space-saving 5.5″ x 3.5″ x 1.2″ form factor optimizes panel space utilization.
- Universal Power Input: Wide 85-264 VAC voltage range ensures adaptability across global power systems.
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand/Model | Allen Bradley 1756-CN2R |
| Power Requirements | 85-264 VAC, 45-60 Hz |
| Data Rate | 100 Mbps |
| Network Interface | 1 x ControlNet Port |
| Weight | 0.2 lbs (0.09 kg) |
Target Applications
This module excels in automotive manufacturing lines, process control systems, and discrete automation environments requiring deterministic communication. It’s ideal for applications such as:
- High-speed material handling systems
- Real-time motion control networks
- Plant-wide information integration architectures
- Heavy industrial environments with electrical noise challenges
Our Featured Brands & Models
We distribute premium industrial control solutions from leading global manufacturers including:
- ABB: DSQC series robot parts, PM866, 5SHY6545L0001
- GE Fanuc: VMIVME-7807, IC698CPE010
- Bently Nevada: 3500/44, 3300/15
- Woodward: 8521-0312, 5466-2588
- Yokogawa: Centum VP, ProSafe-RS
For comprehensive technical documentation, visit Rockwell Automation’s official resource center.






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