• Allen-Bradley 1756-CN2
  • Allen-Bradley 1756-CN2
  • Allen-Bradley 1756-CN2
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Allen-Bradley 1756-CN2 ControlLogix ControlNet Communication Module

Allen-Bradley 1756-CN2 ControlLogix ControlNet Communication Module

The Allen-Bradley 1756-CN2 is a high-performance communication module designed for the ControlLogix platform, specifically engineered to interface with ControlNet networks. This module facilitates reliable, deterministic data exchange between controllers, I/O...

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Availability: Low stock: 8 left

SKU: 1756-CN2
Vendor: Allen-Bradley
Category: Communication Module
Related Series:

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View full product details

The Allen-Bradley 1756-CN2 is a high-performance communication module designed for the ControlLogix platform, specifically engineered to interface with ControlNet networks. This module facilitates reliable, deterministic data exchange between controllers, I/O devices, and other network nodes within an industrial automation environment.

Features

  • Supports standard media for ControlNet connectivity.
  • Data transmission rate of 5 Mbps.
  • Provides 128 Logix connections for robust system integration.
  • Supports up to 99 nodes on a single network segment.
  • Designed for seamless integration into existing ControlLogix chassis architectures.

Applications

This module is primarily utilized in large-scale industrial control systems where synchronized, real-time communication is required. It is commonly found in manufacturing, process control, and material handling applications that rely on the ControlNet protocol for deterministic I/O updates and peer-to-peer messaging.

Technical Specifications

Product Model 1756-CN2
Communication Protocol ControlNet
Data Rate 5 Mbps
Max Logix Connections 128
Max Nodes 99
Manufacturer Allen-Bradley

Installation Guidelines

  • Ensure the ControlLogix chassis is powered down before inserting or removing the module to prevent electrical damage.
  • Slide the module into any available slot in the ControlLogix chassis, ensuring the backplane connectors are properly aligned.
  • Secure the module using the top and bottom latching mechanisms to maintain a firm connection and proper grounding.
  • Use appropriate ControlNet cabling and ensure proper termination at both ends of the network segment to maintain signal integrity.
  • Avoid routing communication cables near high-voltage power lines or sources of significant electromagnetic interference (EMI).

FAQ

What is the primary function of the 1756-CN2?
The 1756-CN2 acts as a bridge between the ControlLogix controller and the ControlNet network, allowing for deterministic data communication between distributed automation components.

Does this module support redundant media?
The 1756-CN2 is designed for standard media configurations; please consult your specific system design documentation to ensure compatibility with your network topology.