Allen-Bradley 1788-CN2DN Network Bridge

Description

Allen-Bradley 1788-CN2DN Network Bridge

Product Dimensions：

The Allen-Bradley 1788-CN2DN is a high-performance linking device designed to bridge two major industrial networks: ControlNet and DeviceNet. It acts as a gateway, allowing seamless communication and data exchange between controllers on a ControlNet network and devices on a DeviceNet network.

1. Product Detailed Description

The 1788-CN2DN serves as a ControlNet-to-DeviceNet linking device. In a typical architecture, it functions as a “bridge.” It allows a scanner on ControlNet (like a ControlLogix controller) to manage and exchange I/O data with devices on a DeviceNet sub-network as if they were directly connected.

It eliminates the need for a local scanner card in every chassis, providing a centralized point of connection that reduces hardware costs and simplifies network topology.

2. Technical Specifications (Parameters)

3. Key Product Advantages

• Seamless Integration: Enables high-speed ControlLogix systems to control legacy or cost-effective DeviceNet sensors and actuators.

• Cost Efficiency: Reduces the number of expensive ControlNet nodes by grouping DeviceNet devices under a single linking device.

• Reduced Wiring: By bridging networks, you minimize long-run cabling requirements, keeping DeviceNet runs localized to the machinery.

• Real-time Diagnostics: Provides comprehensive status LEDs and software-based diagnostics to troubleshoot network health quickly.

• Compact Form Factor: Fits easily into standard industrial enclosures without requiring a full rack/chassis.

4. Important Considerations (Precautions)

• Power Supply: The module is powered directly from the DeviceNet network. Ensure your DeviceNet power supply is appropriately sized to handle the 1788-CN2DN plus all other nodes.

• Termination: Proper termination resistors (120 ohms) are mandatory at both ends of the DeviceNet trunk line to prevent signal reflection.

• Firmware Compatibility: Ensure the firmware of the linking device is compatible with your RSLogix/Studio 5000 version and the EDS (Electronic Data Sheet) files are correctly installed.

• Network Limits: Be mindful of the maximum node limits on DeviceNet (64 nodes) and the bandwidth constraints of the ControlNet scheduled traffic.

5. Typical Applications

• Automotive Assembly: Connecting specialized sensors and barcode readers on a DeviceNet line to a main ControlLogix backbone.

• Conveyor Systems: Managing distributed motor starters and photo-eyes across a large facility.

• Packaging Machinery: Integrating small, high-density I/O blocks located on moving parts of a machine back to a central controller.

• Legacy Migrations: Bridging older DeviceNet installations into a modern ControlNet or EtherNet/IP environment (using additional bridging if necessary).

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

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