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Product Introduction
The Allen-Bradley 1768-CNB CompactLogix ControlNet Bridge Module is a high-performance communication module designed for CompactLogix controllers. Manufactured by Rockwell Automation under the Allen-Bradley label, this module enables seamless integration of ControlNet networks with CompactLogix systems, providing fast and reliable industrial communication.
The 1768-CNB supports a single media ControlNet connection, with up to 48 Logix connections and 99 nodes per network. It operates at a communication rate of 5 Mbps, ensuring efficient data transfer across distributed control systems. This module is ideal for applications requiring high-speed, deterministic communication between multiple devices and controllers.
Designed for industrial environments, the 1768-CNB provides robust network performance, allowing integration of multiple nodes and devices in manufacturing, process automation, and building automation systems. It simplifies network management while maintaining reliable communication between controllers and field devices.
Product Specifications
| Parameter | Description |
|---|---|
| Product Type | ControlNet Bridge Module |
| Series | CompactLogix |
| Manufacturer | Allen-Bradley (Rockwell Automation) |
| Network Media | Single Media ControlNet |
| Maximum Logix Connections | 48 |
| Maximum Nodes | 99 |
| Communication Rate | 5 Mbps |
| Supported Protocols | ControlNet |
| Mounting Method | DIN Rail or Panel Mount |
| Operating Temperature | 0°C to +55°C |
| Enclosure Rating | IP20 |
| Dimensions | 132 × 56.7 × 105.1 mm |
| Weight | 0.26 kg |
Applications
• Industrial Communication Networks
Connects multiple CompactLogix controllers and devices over ControlNet for reliable data exchange.
• Distributed Control Systems
Facilitates communication across multiple nodes in manufacturing, process, or building automation systems.
• High-Speed Data Transfer
Supports 5 Mbps deterministic communication for time-sensitive industrial applications.
• Network Integration
Integrates CompactLogix controllers with larger ControlNet networks to expand system scalability.
• Process Automation
Enables real-time monitoring and control of process variables across multiple controllers.
• System Diagnostics
Provides network status and diagnostics information for maintenance and troubleshooting.
Advantages
• High-Speed Communication
Supports a 5 Mbps transfer rate, enabling fast and reliable network performance for industrial automation.
• Large Network Capacity
Allows up to 48 Logix connections and 99 nodes, providing scalability for complex control systems.
• Deterministic Data Transfer
Ensures predictable timing for critical control operations across distributed networks.
• Seamless Integration
Designed for CompactLogix controllers, facilitating easy integration into existing ControlNet systems.
• Robust Industrial Design
Engineered to maintain stable operation in standard industrial environments.
• Simplified Network Management
Single media connection reduces complexity while supporting multiple nodes and connections.
• Enhanced Diagnostics
Supports monitoring of network performance and fault detection for preventive maintenance.
• Flexible System Expansion
Supports integration of additional controllers and devices without redesigning the network.
• Reliable Performance
Maintains consistent communication across nodes, minimizing downtime and improving production efficiency.
• Compact and Convenient
Small form factor allows installation in tight control panel spaces while maintaining full network functionality.
