Omega Products USB-4761 Installation Manual

omega.com

e-mail: [e-mail]

For latest product manuals:

omegamanual.info

User’s Guide

USB-4761

8 Channel Relay/Isolated DI

USB Data Acquisition Module

Shop online at

Servicing North America:

U.S.A.: One Omega Drive, Box 4047

ISO 9001 Certified Stamford, CT 06907-0047

Tel: [phone]
FAX: [phone]
e-mail: [e-mail]

Canada: 976 Bergar

Laval (Quebec) H7L 5A1, Canada
Tel: [phone]
FAX: [phone]
e-mail: [e-mail]

For immediate technical or application assistance:

U.S.A. and Canada: Sales Service: 1-800-826-6342/1-800-TC-OMEGA

®

Customer Service: 1-800-622-2378/1-800-622-BEST

®

Engineering Service: 1-800-872-9436/1-800-USA-WHEN

®

Mexico: En Espan˜ol: [phone]-7803

FAX: ( 001) 203-359-7807
e-mail: [e-mail]
[e-mail]

Servicing Europe:

Czech Republic: Frystatska 184, 733 01 Karviná, Czech Republic

Tel: [phone]
FAX: [phone]
Toll Free: 0800-1-66342
e-mail: [e-mail]

Germany/Austria: Daimlerstrasse 26, D-75392 Deckenpfronn, Germany

Tel: [phone]
FAX: [phone]
Toll Free in Germany: 0800 639 7678
e-mail: [e-mail]

United Kingdom: One Omega Drive, River Bend Technology Centre

ISO 9002 Certified Northbank, Irlam, Manchester

M44 5BD United Kingdom
Tel: [phone]
FAX: [phone]
Toll Free in United Kingdom: 0800-488-488
e-mail: [e-mail]

OMEGAnet®Online Service Internet e-mail

omega.com [e-mail]

It is the policy of OMEGA Engineering, Inc. to comply with all worldwide safety and EMC/EMI
regulations that apply. OMEGA is constantly pursuing certification of its products to the European New
Approach Directives. OMEGA will add the CE mark to every appropriate device upon certification.

The information contained in this document is believed to be correct, but OMEGA accepts no liability for any
errors it contains, and reserves the right to alter specifications without notice.
WARNING: These products are not designed for use in, and should not be used for, human applications.

USB-4761

8-channel Relay / Isolated DI
USB Data Acquisition Module

User Manual

Contents

Chapter 1 Introduction ..................................................... 2

1.1 Features ............................................................................. 2

1.1.1 Robust Protection ........................................................... 3

1.1.2 Wide Input Range ..................... ..................................... 3

1.1.3 Reset Protection for Industrial Applications .................. 3

1.1.4 Plug & Play Function ..................................................... 3

1.2 Applications ...................................................................... 4

1.3 Installation Guide .............................................................. 4

Figure 1.1:Installation Flow Chart ................................. 5

1.4 Software Overview............................................................ 6

1.4.1 Programming Cho ic es for DA& C Module: ................... 6

1.4.2 Device Drivers ............................................................... 6

1.5 Device Driver Programming ............................................. 7

1.5.1 Programming Tools ....................................................... 7

1.5.2 Programming with Device Drivers Function Library .... 8

1.5.3 Troubleshooting Device Drivers Error .......................... 8

Chapter 2 Installation ..................................................... 10

2.1 Unpacking ....................................................................... 10

2.2 Driver Installation ........................................................... 11

Figure 2.1: Software Setup .......................................... 11

2.3 Hardware Installation ...................................................... 12

Figure 2.2:Device Name on the Device Ma n ag e r ... .. ... 1 3

Figure 2. 3:The (!) I ndicates Improper Installation ...... 14

2.4 Device Setup & Configuration ........................................ 14

2.4.1 Setting Up the Device .................................................. 14

Figure 2.4:Device Manager Dialog Box ...................... 15

2.4.2 Configuring the Device ............... . ................................ 15

Figure 2.5:The Device Setting Dialog Box ................. 16

2.5 Device Testing............................ ... ..... ... ...... ..... ...... ...... ... 16

2.5.1 Testing Digital Input Function ..................................... 17

Figure 2.6:Digital Input Tab in Device Test Dialog .... 17

2.5.2 Testing Digital Output Function .................................. 17

Figure 2.7:Digital Output Tab in Device Test Dialog . 18

2.6 Hardware Uninstallation ................................................. 18

Figure 2.8:Unplug or Eject Hardware Dialog .............. 19

Figure 2.9:Stop a Hardware device dialog box ............ 19

Chapter 3 Signal Connections ........................................ 22

3.1 Overview ......................................................................... 22

3.2 I/O Connectors ................................................................ 22

3.2.1 Pin Assignment ............................................................ 22

Figure 3.1:I/O Connector Pin Assignment .................. 23

3.2.2 I/O Connector Signal Description ................................ 24

v Table of Contents

Table 3.1:I/O Connector Signal Description ............... 24

3.2.3 LED Indicator Status Descript ion . .................. ............. 24

Table 3.2:LED Indicator Status Description ................ 24

3.3 Isolated Digital Input Connections.................................. 25

3.3.1 Single-ended Channel Connectio ns ............................. 25

Figure 3.2:Isolated Digital Input Connections ............. 25

3.4 Relay Connections............................ .. ...... ...... ..... ... ...... ... 25

Figure 3.3:Relay Output Channel Connections ........... 25

3.5 Field Wiring Considerations ........................................... 26

Appendix A Specifications ................................................. 28

A.1 Isolated Digital Input....................................................... 28

A.2 Relay Output ................................................................... 28

A.3 General ............................................................................ 29

Appendix B Function Block............................................... 32

USB-4761 User Manual vi

1

2

Introduction

This chapter will provide information
on the features of the
quick start
some brief information on software and
accessories for the USB-4761
Sections include:

• Features

• Applications

• Installation Guide

• Software Overview

• Device Driver Programming

guide for installation, and

DAS module, a

Module.

Chapter 1 Introduction

Thank you for buying the USB-4761 data acquisition module.
4761 is

a powerful data acquisition (DAS) module for the USB port. It
features a unique
acquisition and control.

circuit design and complete functions for data

1.1 Features

USB-4761 has the most requested measurement & control functions:

• 8 relay output (Form C) and 8 isolated digital input channels

• LED indicators to show activated relays

• High-voltage isolation on input channels (2,500 VDC)

• High ESD protection (2,000 VDC)

• Wide input range (5 ~ 30 VDC)

• Interrupt handling capability

• Bus-powered

• Wiring terminal on Modules

Note:

Yo u ca n inst al l up to sixteen USB-4761’s to a

system
BoardID

because of the restriction of device

Note:

The power output of an USB port is 500 mA,

while the USB-4761 requires 400mA (Max.).
means that if an USB hub is u sed, it will need an
external power supply
USB-4761 device.

USB-4761 User Manual 2

to support more than one

The

USB-

This

1.1.1 Robust Protection

The USB-4761 digital input channels feature a robust isolation protection
for industrial,
withstands voltage up to
any incidental
protection, the USB-4761 can
(Electrostatic Discharge) protection.

lab and machinery automation applicat i ons. It durably

2,500 VDC, preventing your host system from

harms. If connected to an external input source with surge

offer up to a maximum of 2,000 VDC ESD

1.1.2 Wide Input Range

The USB-4761 has a wide range of input voltage from 5 to 30 VDC, and it

suitable for most industrial applications with 12 and 24 V

is
age.

input volt-

DC

1.1.3 Reset Protection for Industrial Applications

When the system has undergone a hot reset (i.e. without turning off the
system power), USB-4761
nel, or

return to its default configuration as open status, depending on its
onboard jumper setting. This function protects the system
operations during unexpected system

can either retain outputs values of each chan-

resets.

from wrong

1.1.4 Plug & Play Function

USB-4761 is a portable Plug-&-Play device that fully complies with the
USB 1.1/2.0 specification. During module installation, all bus-related
configurations such as
taken care of
set any jumpers

by the Plug-&-Play function. You have virtually no need to

Note: For detailed specifications of USB-4761, please

refer

base I/O address and interrupts are conveniently

or

DIP switches.

to Appendix A, Specifications.

3 Chapter 1

1.2 Applications

• Industrial On/Off control

• Switch status sensing

• Digital I/O contr ol

• Industrial and lab automation

• SMT/PCB machinery

• Semi-conductor machinery

• PC-based Industrial Machinery

• Testing & Measurement

• Laboratory & Education

• External relay driving

1.3 Installation Guide

Before you install your USB-4761 module, please make sure you have
the following necessary

• USB-4761 DAS Module

• Shielded USB 2.0 cable (1.8 m)

• Driver software DLL drivers (included in the companion

CD-ROM)

• Personal computer or workstation with a USB port (running Windows

2000, or XP)

After you have the necessary components and maybe some accessories
for enhanced

operation of your USB DAS module, you can then begin the
installation procedure. Figure
flow chart
tion procedures.

to give a broad picture of the software and hardware installa-

USB-4761 User Manual 4

components:

1.1 on the next page provides a concise

Figure 1.1: Installation Flow Chart

5 Chapter 1

1.4 Software Overview

OMEGA offers a rich set of DLL drivers, third-party driver support and
application software
module:

• Device Drivers (on the companion CD-ROM)

1.4.1 Programming Choices for DA&C Module:

You may use the application software like the Device Drivers. On the
other hand, advanced
programming
to its laborious and time-consuming

1.4.2 Device Drivers

The Device Drivers software is included on the companion CD-ROM.

Device Drivers features a complete I/O function library to help boost

The
your application performance. The Device Drivers for Windows
works seamlessly with development tools such as Visual C++, Visual
Basic.

USB-4761 User Manual 6

to help fully exploit the functions of your USB-4761

users are allowed to use register- level

as another option, although this is not recommended due

nature.

2000/XP

1.5 Device Driver Programming

This section will provide a roadmap to demonstrate how to build an appli­cation

from scratch using the Device Drivers with your favorite
development
instructions on
development tool will be given
a rich

1.5.1 Programming Tools

Programmers can develop application programs with the following devel­opment tools:

• Visual C++

• Visual Basic
For instructions on how to begin programming in each development tool,

a

Tutorial Chapter in the Device Drivers Manual is included for your
reference. Please
Device
look at the example source code provided for each programming tool,
since they

The Device Drivers Manual can be found on the companion CD-ROM.
Alternatively, if
system, The
Start button:

Start/Programs/Omega USB-4700 Series/Device Driver’s Manual

The example source code can be found under the corresponding installa-

folder such as the default installation path:

tion

C:/Program Files/Omega/USB-4700/Examples

For information about using other function groups or other development
tools, please refer to

Device Drivers

Drivers Manual.

tools such as Vi sual C++, Visual Basic. The step-by-step

how to build your own applications using each

in the Device Drivers Manual. Moreover,

set of example source code is also given for your reference.

refer to the corresponding sections in this chapter on the

Drivers Manual to begin your programming efforts. You can also

can get you very well oriented.

you have already installed the Device Drivers on your

Device Drivers Manual can be readily accessed through the

Creating Windows 2000/XP Applications with

chapter and the Function Overview

chapter in the Device

7 Chapter 1