Installation Instructions USB-to-DeviceNet Cable Catalog Number 1784-U2DN Topic Page Important User Information 2 Environment and Enclosure 3 About the Cable 4 Install the Cable 5 Status Indicators 10 Additional Resources 15
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. Without appropriate precautions, there may be potential difficulties with electromagnetic compatibility in residential and other environments due to conducted and radiated disturbances.
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. IMPORTANT To comply with the CE low voltage directive (LVD), this equipment must be powered from a source compliant with safety extra low voltage (SELV) or protected extra low voltage (PELV). The 1784-U2DN cable replaces the 1784-PCD communication card.
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. • Cables with version 1.008 or later have an explicit message size of 500 bytes, which allows uploading from a SmartGuard controller.
USB-to-DeviceNet Cable Obtain the Device Driver for the Cable Follow these steps to download and install the device driver for the cable. IMPORTANT A minimum of RSLinx Classic software, version 2.51, is required for use with the cable. IMPORTANT If RSLinx Classic software, version 2.54 or later, is installed on the computer, the device driver is already installed on the computer. Skip this section. 1. Visit http://www.rockwellautomation.com/knowledgebase/. 2.
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 TIP 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.
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. The factory-default fallback data rate is 125 Kbps.
USB-to-DeviceNet Cable 9 Use RSNetWorx for DeviceNet Software to Set the Speed IMPORTANT The fallback rate can be set only with the software when the link speed switch is in the Auto position. TIP You cannot change the node address with software. You can set the node address only by using the rotary switches on the module. 1. Start RSNetWorx for DeviceNet software. 2. From the Tools menu, choose Node Commissioning. 3. Click Browse and navigate to the 1784-U2DN cable to be modified. 4.
USB-to-DeviceNet Cable Status Indicators The following table describes the cable status indicators. Module Status Network USB Status Status Indicators Indicator Status Description USB Green The cable is configured, but no network traffic is present. Flashing green Network traffic is present. Off Unable to transfer data: • Disconnected from host.
USB-to-DeviceNet Cable 11 Status Indicators Indicator Status Description Module Status (MS) Green The cable is operating normally. Off 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. • The cable needs commissioning due to missing, incomplete, or incorrect configuration. Flashing red The cable has a recoverable fault.
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. 0.11 kg (0.23 lb) Wire size DeviceNet network: 0.05…3.
USB-to-DeviceNet Cable 13 Environmental Specifications - 1784-U2DN Attribute 1784-U2DN Temperature, operating • IEC 60068-2-1 (Test Ad, Operating Cold) • IEC 60068-2-2 (Test Bd, Operating Dry Heat) • IEC 60068-2-14 (Test Nb, Operating Thermal Shock) 0…55 °C (32…131 °F) Temperature, nonoperating • IEC 60068-2-1 (Test Ab, Unpackaged Nonoperating Cold) • IEC 60068-2-2 (Test Bb, Unpackaged Nonoperating Dry Heat) • IEC 60068-2-14 (Test Na, Unpackaged Nonoperating Thermal Shock) -10…85 °C (14…185 °F) Relati
USB-to-DeviceNet Cable Certifications - 1784-U2DN Certification(1) (when product is marked) 1784-U2DN c-UL-us UL Listed Industrial Control Equipment, certified for US and Canada. See UL File E65584. CE European Union 2004/108/EC EMC Directive, compliant with: • EN 61326-1; Meas./Control/Lab.
USB-to-DeviceNet Cable 15 Additional Resources These documents contain additional information concerning related products from Rockwell Automation. Resource Description DeviceNet Media Design and Installation Guide, publication DNET-UM072 Provides DeviceNet network planning information. Industrial Automation Wiring and Grounding Guidelines, publication 1770-4.1 Provides general guidelines for installing a Rockwell Automation industrial system. Product Certifications website, http://www.ab.
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