Product Overview
The Allen-Bradley 1784-U2DN is an USB to DeviceNet cable designed for industrial automation. It connects a personal computer to a DeviceNet network via an USB port, enabling configuration and monitoring. This component is part of the PLC 5 series and offers reliable data transfer. For maintenance engineers, the 1784-U2DN simplifies network access without complex hardware.

Technical Specifications Breakdown
Key parameters for the 1784-U2DN are listed below for quick reference:
| Feature | Specification |
|---|---|
| Brand | Allen-Bradley / Rockwell Automation |
| Series | PLC 5 |
| Part Number | 1784-U2DN |
| Description | USB to DeviceNet cable |
| Length | 0.61 meters |
| Enclosure | IP 20 |
| Standard | C-Tick, CE, KC, UL |
| Data rate | 125/250/500 kbps |
| Voltage | 5 Volts DC |
| Power | 0.5 Watts |
| DeviceNet supply | 24 Volts at 75 mA |
| Weight | 0.23 lbs |
Industry Applications
Use it for commissioning new devices or troubleshooting existing nodes. The 125/250/500 kbps data rates support various network speeds, reducing downtime during setup. Maintenance engineers benefit from quick diagnostics without permanent wiring.

Installation & Setup Guidance
Install the cable driver on your computer before connecting the 1784-U2DN. Use the node address selector switch on the side to set the device address. Rotate the switch to the desired position. The data rate switch allows manual selection of 125, 250, or 500 kbps. If the cable does not detect an active network rate, it defaults to 125 kbps. Mount the unit using the provided mounting bracket for secure placement.
Maintenance & Reliability
The IP20 enclosure protects against solid objects larger than 12 mm. Keep the cable away from moisture and excessive dust. Inspect the connector pins periodically for wear. The operating environment should not exceed 55 degrees Celsius. The blue and red LED status indicators show module and network activity, simplifying troubleshooting.
Compatibility & Integration
The 1784-U2DN works with any computer that has an USB port. It is compatible with DeviceNet networks operating at 125, 250, or 500 kbps. The cable supports C-Tick, CE, KC, and UL standards, ensuring global compliance. Use it with Rockwell Automation software for configuration.
Selection Guide & Purchasing Advice
When ordering, verify that your network requires the 1784-U2DN. This cable is a cost-effective solution for temporary or permanent DeviceNet connections. Please verify current lifecycle status and availability with AutoDCSTech before ordering.
Availability & Condition at AutoDCSTech
| Part Number | 1784-U2DN |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
