Installation Instructions USB-to-DeviceNet Cable Catalog Number 1784-U2DN Topic Page Important User Information Environment and Enclosure About the Cable Install the Cable Status Indicators Additional Resources...
2 USB-to-DeviceNet Cable Important User Information Solid-state equipment has operational characteristics differing from those of electromechanical equipment. Safety Guidelines for the Application, Installation and Maintenance of Solid State Controls (Publication SGI-1.1 available from your local Rockwell Automation sales office or online at http://www.rockwellautomation.com/literature/) describes some important differences between solid-state equipment and hard-wired electromechanical devices.
USB-to-DeviceNet Cable 3 Environment and Enclosure ATTENTION: This equipment is intended for use in overvoltage Category II applications (as defined in IEC 60664-1), at altitudes up to 2000 m (6562 ft) without derating. This equipment is considered Group 1, Class A industrial equipment according to IEC/CISPR 11.
4 USB-to-DeviceNet Cable About the Cable The 1784-U2DN USB-to-DeviceNet cable lets you connect a computer to a DeviceNet network via an unused USB port on the computer. To comply with the CE low voltage directive (LVD), this equipment IMPORTANT must be powered from a source compliant with safety extra low voltage (SELV) or protected extra low voltage (PELV).
USB-to-DeviceNet Cable 5 These are the firmware variations: • Cables with version 1.009 or later contain a fix for an anomaly whereby timeouts could be experienced while monitoring parameters of some devices. The initial installation of a 1784-U2DN USB-to-DeviceNet cable will no longer cause the Windows operating system to report an error code 10.
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6 USB-to-DeviceNet Cable Obtain the Device Driver for the Cable Follow these steps to download and install the device driver for the cable. A minimum of RSLinx Classic software, version 2.51, is required IMPORTANT for use with the cable. If RSLinx Classic software, version 2.54 or later, is installed on IMPORTANT the computer, the device driver is already installed on the computer.
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USB-to-DeviceNet Cable 7 4. Insert a DeviceNet network cable into the five-pin female DeviceNet network connector. Five-pin Female DeviceNet Network Connector A 10-pin plug-in connector (catalog number 1787-PLUG10R, PN-94220605) is shipped with the 1784-U2DN cable. See the figure and chart for wiring. Connect Red wire White wire...
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8 USB-to-DeviceNet Cable Change the Data Rate The 1784-U2DN cable can automatically detect the data rate being used on an active DeviceNet network. To use this feature, set the data rate (DR) switch to Auto. If the cable does not detect any network traffic for a period of 12 seconds after it is plugged into the USB port, it will set itself to a fallback data rate.
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USB-to-DeviceNet Cable 9 Use RSNetWorx for DeviceNet Software to Set the Speed The fallback rate can be set only with the software when the link IMPORTANT speed switch is in the Auto position. You cannot change the node address with software. You can set the node address only by using the rotary switches on the module.
10 USB-to-DeviceNet Cable Status Indicators The following table describes the cable status indicators. Module Status Network Status Status Indicators Indicator Status Description Green The cable is configured, but no network traffic is present. Flashing green Network traffic is present. Unable to transfer data: •...
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USB-to-DeviceNet Cable 11 Status Indicators Indicator Status Description Module Status (MS) Green The cable is operating normally. No power to the cable. Flashing green The cable is operating in a normal condition and is online with no connections established: • The cable may be in Standby mode. •...
12 USB-to-DeviceNet Cable Specifications Technical Specifications - 1784-U2DN Attribute 1784-U2DN Enclosure type rating Meets IP30 USB Supply 75 mA @ 5V DC DeviceNet Supply 70 mA @ 24V DC Power consumption 0.5 W Power dissipation 0.5 W Isolation voltage 30V (continuous), basic insulation type Type tested at 500V AC for 60 s, DeviceNet network to USB Weight, approx.
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14 USB-to-DeviceNet Cable Certifications - 1784-U2DN Certification 1784-U2DN (when product is marked) c-UL-us UL Listed Industrial Control Equipment, certified for US and Canada. See UL File E65584. European Union 2004/108/EC EMC Directive, compliant with: • EN 61326-1; Meas./Control/Lab., Industrial Requirements •...
Provides declarations of conformity, http://www.ab.com certificates, and other certification details. You can view or download publications at http://www.rockwellautomation.com/literature/. To order paper copies of technical documentation, contact your local Allen-Bradley distributor or Rockwell Automation sales representative. Rockwell Automation Publication 1784-IN046D-EN-P - April 2011...
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RA-DU002, available at http://www.rockwellautomation.com/literature/. Allen-Bradley, Rockwell Software, Rockwell Automation, SmartGuard, RSLinx Classic, RSNetWorx for DeviceNet, Encompass, and TechConnect are trademarks of Rockwell Automation, Inc. Trademarks not belonging to Rockwell Automation are property of their respective companies.