Rockwell Automation 1784-U2CN User Manual

Installation Instructions

USB-to-ControlNet Cable

Catalog Number 1784-U2CN

Top ic Page

Important User Information 2
Environment and Enclosure 3
About the Cable 4
Install the Cable 5
Status Indicators 9
Specifications 11
Additional Resources 14

2 USB-to-ControlNet 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

http://literature.rockwellautomation.com

equipment and hard-wired electromechanical devices. Because of this difference, and also because of
the wide variety of uses for solid state equipment, all persons responsible for applying this equipment
must satisfy themselves that each intended application of this equipment is acceptable.

In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages
resulting from the use or application of this equipment.

The examples and diagrams in this manual are included solely for illustrative purposes. Because of the
many variables and requirements associated with any particular installation, Rockwell Automation, Inc.
cannot assume responsibility or liability for actual use based on the examples and diagrams.

No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits,
equipment, or software described in this manual.

Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell
Automation, Inc., is prohibited.

Throughout this manual, when necessary, we use notes to make you aware of safety considerations.

WARNING

available from your local Rockwell Automation sales office or online at

Identifies information about practices or circumstances that can cause an explosion in
a hazardous environment, which may lead to personal injury or death, property
damage, or economic loss.

) describes some important differences between solid state

IMPORTANT

ATTENTION

SHOCK HAZARD

BURN HAZARD

Publication

Identifies information that is critical for successful application and understanding of
the product.

Identifies information about practices or circumstances that can lead to personal
injury or death, property damage, or economic loss. Attentions help you identify a
hazard, avoid a hazard and recognize the consequences.

Labels may be on or inside the equipment (for example, a drive or motor) to alert
people that dangerous voltage may be present.

Labels may be on or inside the equipment (for example, a drive or motor) to alert
people that surfaces may reach dangerous temperatures.

1784-IN047A-EN-P - November 2008

Environment and Enclosure

USB-to-ControlNet Cable 3

ATTENTION

This equipment is intended for use in overvoltage Category II applications (as
defined in IEC publication 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 Publication 11. Without appropriate precautions, there may be
potential difficulties ensuring electromagnetic compatibility in other
environments due to conducted as well as radiated disturbance.
This equipment is supplied as enclosed equipment. It should not require
additional system enclosure when used in locations consistent with the
enclosure type ratings stated in the Specifications section of this publication.
Subsequent sections of this publication may contain additional information
regarding specific enclosure type ratings, beyond what this product provides,
that are required to comply with certain product safety certifications.

In addition to this publication, see the following publications:

• publication 1770-4.1
Guidelines, for additional installation requirements.

• NEMA Standards publication 250 and IEC publication 60529, as
applicable, for explanations of the degrees of protection provided by
different types of enclosures.

, Industrial Automation Wiring and Grounding

At the end of its life, this equipment should be collected
separately from any unsorted municipal waste.

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1784-IN047A-EN-P - November 2008

4 USB-to-ControlNet Cable

About the Cable

The 1784-U2CN USB-to-ControlNet cable lets you connect a notebook or
desktop computer to a ControlNet network by using an unused USB port on
the computer. The product replaces the 1784-PCC communication card for
computers that do not have PCMCIA slots.

IMPORTANT

USB Cable

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).

RJ45 ControlNet Network Connector

Status Indicators

Node Address Switches

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1784-IN047A-EN-P - November 2008

Install the Cable

Follow these procedures to install the cable.

USB-to-ControlNet Cable 5

ATTENTION

This equipment is sensitive to electrostatic discharge, which can cause
internal damage and affect normal operation. Follow these guidelines when
you handle this equipment:

• Touch a grounded object to discharge potential static.

• Do not touch connectors or pins.

• Store the equipment in appropriate static-safe packaging when not in

use.

Obtain the Device Driver for the Cable

Follow these steps to download and install the device driver for the cable.

IMPORTANT

IMPORTANT

1. Visit http://www.rockwellautomation.com/knowledgebase/.

2. Open tech note ID 55431 and follow the instructions in the tech note

A minimum of RSLinx Classic software, version 2.51, is required for use with
the cable.

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.

to install the driver.

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1784-IN047A-EN-P - November 2008