Allen-Bradley 1756-CNB/E Communication Module

The 1756-CNB/E is a specialized communication module designed to link ControlLogix racks with ControlNet networks. It effectively translates communication between these two systems, allowing them to exchange data seamlessly.

Key Features and Specifications

• ControlNet Interface:
  • Equipped with a ControlNet BNC connector for smooth integration into ControlNet networks.
• Logix Communication:
  • Provides multiple Logix communication connections, enabling robust interaction with the ControlLogix controller.
• Network Capacity:
  • Supports up to 99 nodes and 64 connections, handling significant network traffic efficiently.
• Communication Rate:
  • Operates at a rate of 5 Mbps for swift data transfer.
• Power Consumption:
  • Low power consumption, ideal for various industrial applications.
• Isolation Voltage:
  • Offers high isolation voltage, protecting connected devices from electrical disturbances.
• Rugged Construction:
  • Designed to endure harsh industrial environments, ensuring long-term reliability.

Applications

• Connecting Remote I/O:
  • Connects remote I/O modules to a central ControlLogix controller.
• Integrating Legacy Devices:
  • Integrates older ControlNet devices into a newer ControlLogix system.
• Building Complex Automation Systems:
  • Crucial for constructing large-scale automation systems requiring high-speed communication.

Technical Specifications Summary