Allen-Bradley 1756-CN2R ControlLogix Redundant Communication Module

Model Type:Redundant Communication Module

Manufacturer:Allen-Bradley

Model Number:1756-CN2R

Number of Channels:2

Current Rating (Channel 1):Drawn: 970 mA at 5.1 VDC, 1.7 mA at 24 VDC

Isolation:30 V (Continuous)

Communication Protocol:ControlNet A/B to Backplane, ControlNet A to ControlNet B

Enclosure:Open Type

RFI Suppression:Radiated: 10 V/M with 1 KHz sine-wave 80% AM from 80 – 2000 MHz, 10 V/M with 200 Hz 50% pulse 100% AM at 900

    The Allen-Bradley 1756-CN2R is engineered to ensure high system availability in critical control applications. Its redundant design allows for immediate failover without interrupting production lines.

    With a current rating of 970 mA at 5.1 VDC and 1.7 mA at 24 VDC per channel, this module is capable of handling demanding power requirements while maintaining isolation of 30 V (Continuous) to protect against electrical interference.

    Featuring dual communication paths to ControlNet A/B and ControlNet A to ControlNet B, the 1756-CN2R ensures robust data exchange even in complex network configurations, providing redundancy and enhanced reliability.

    The open type enclosure allows for easy installation and maintenance, while its RFI suppression capabilities ensure stable performance in environments with electromagnetic interference, making it suitable for a wide range of industrial settings.

    Ideal for applications where downtime is unacceptable, the Allen-Bradley 1756-CN2R is tested to withstand vibration up to 2 G and shock up to 30 G, ensuring durability and reliability in harsh industrial conditions.