1756-CN2R | Allen-Bradley ControlLogix Communication Module

The Allen-Bradley 1756-CN2R is a ControlLogix communication module designed for high-performance ControlNet connectivity within the ControlLogix controller platform. It offers redundant ControlNet network support and multiple communication ports for seamless integration and robust network performance in industrial environments.

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Key Features:

• Part Number: 1756-CN2R
• Manufacturer: Rockwell Automation
• Series: ControlLogix
• Product Type: Communication Module
• Network Topology: Redundant ControlNet communication
• ControlNet Transmission Speed: 5 Mbps
• Maximum Nodes: 99 nodes
• Maximum Logix Connections: 128 connections (131 total connections)
• Ports:
  • Two (2) BNC ControlNet ports
  • One (1) USB port (12 Mbps data transfer rate for configuration purposes, not for data communication)
• Power Dissipation: 6.7 Watts (22.9 BTU/hr)
• Mounting: Fits into any standard 1756 chassis
• Operating Temperature: 0°C to 60°C (32°F to 140°F)
• Humidity Range: 5% to 95% (non-condensing)
• Vibration Resistance: 2G (10–500 Hz)
• Shock Resistance: 30G operational shock

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Technical Specifications:

• Input Current (5V DC): 1300 mA
• Input Current (24V DC): 3 mA
• Isolation Voltage: 30V DC continuous; Basic insulation tested at 500V for 1 minute
• Communication Cable: Compatible with 1786-RG6 quad shield RG6 coaxial cable
• Thermal Dissipation: 6.7 W (22.9 BTU/hr)
• Dimensions: 5.51 x 4.41 x 5.71 inches (140 x 112 x 145 mm)
• Weight: 0.64 lbs (0.293 kg)
• Chassis Compatibility: 1756-A4, 1756-A7, 1756-A10, 1756-A13, 1756-A17
• Power Supply Compatibility (Standard): 1756-PA72/C, 1756-PA75/B, 1756-PB72/C, 1756-PB75/B, 1756-PC75/B, 1756-PH75/B
• Power Supply Compatibility (Redundant): 1756-PA75R, 1756-PB75R, 1756-PSCA2
• Backplane Current: 1.3A at 5.1V DC; 3mA at 24V DC

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General Information:

• Product Type: Communication Module for ControlNet
• Communication Protocol: ControlNet (using CIP over ControlNet)
• Redundant Configuration Type: Ensures network reliability in mission-critical applications
• Maximum Number of Communication Connections: 131
• Data Transfer Speed (USB Port): 12 Mbps (for configuration use)
• Network Compatibility: Supports a maximum of 99 ControlNet nodes
• Enclosure Type: Open
• Environmental Rating: T4 IEC temperature code, T4A North American temperature code

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Revisions and Series Information:

• 1756-CN2R/A, Series A, Rev A
• 1756-CN2R/B, Series B, Rev B
• 1756-CN2R/C, Series C, Rev C

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Applications:

• Distributed I/O Topology: Enables effective implementation of distributed I/O networks across large industrial systems.
• Human-Machine Interface (HMI): Communication with HMI systems for process monitoring and control.
• SCADA Systems: Used in Supervisory Control and Data Acquisition systems for real-time data acquisition and control.
• ControlNet Redundancy: Ideal for applications requiring high availability and redundancy in the network setup.

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Ordering Information:

• Catalog Number: 1756-CN2R
• UPC: 10612598324436

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Contact Us

• Phone: +86-15915488782
• Email: uma@meloauto.com
• WhatsApp: +8615915488782
• Business Hours: 24/7 service
• Address: Unit 601, Powerlong International Center, No. 1599 Luling Road, Siming District, Xiamen City, Fujian, China

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