Omega Products USB-4718 Installation Manual

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User’s Guide

USB-4718

8 Channel Thermocouple Input

USB Data Acquisition Module

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USB-4718

8-Channel Thermocouple
Input Data Acquisition Module

User Manual

Contents

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

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

1.2 Applications ...................................................................... 3

1.3 Installation Guide .............................................................. 3

Figure 1.1:Installation Flow Chart ................................. 4

1.4 Software Overview............................................................ 5

1.4.1 Programming Cho ic es for DA& C Module: ................... 5

1.4.2 Device Drivers ............................................................... 5

1.5 Device Driver Programming Roadmap ............................. 6

1.5.1 Programming Tools ....................................................... 6

1.5.2 Programming with Device Drivers Function Library .... 7

1.5.3 Troubleshooting Device Drivers Error .......................... 7

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

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

2.2 Driver Installation ........................................................... 10

Figure 2.1:Automation Software Setup Screen ........... 11

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

Figure 2 .2:Device M an ager Screen ................. ............ 1 3

Figure 2.3:USB-4718 Device Speed ............................ 14

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

2.4.1 Setting Up the Device .............................................. .... 15

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 Analog Input Function .................................... 17

Figure 2.6:Analog Input Tab/Device Test Dialog ....... 17

2.5.2 Testing Analog Output Function ................................. 17

Figure 2.7:Analog Output Function Not Supported .... 17

2.5.3 Testing Digital Input Function ..................................... 18

Figure 2.8:Digital Input Tab/Device Test Dialog ........ 18

2.5.4 Testing Digital Output Function .................................. 18

Figure 2.9:Digital Output Tab/Device Test Dialog ..... 18

2.5.5 Testing Counter Function ............................................ 19

Figure 2.10:Counter Tab Testing Unsupported ........... 19

2.6 Hardware Uninstallation ................................................. 19

Figure 2.11:Unplug or Eject Hardware Dialog ............ 20

Figure 2.12:Stop a Hardware device dialog box .......... 20

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

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

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

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

v Table of Contents

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

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

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 Analog Input Connections............................................... 25

Figure 3.2:Single-Ended Input Ch a n nel Connection ... 25

3.4 Isolated Digital Input Connections.................................. 25

Figure 3.3:Analog Output Chann e l Connections ......... 26

3.5 Isolated Digital Output Connections ............................... 26

3.5.1 External Trigger Source Connection ........................... 26

3.6 Field Wiring Considerations ........................................... 27

Appendix A Specifications ................................................. 30

A.1 Analog Input.................................................................... 30

A.2 Accuracy for Thermocouple: .......................................... 31

A.3 Isolated Digital Input....................................................... 31

A.4 Isolated Digital Output .................................................... 32

A.5 General ............................................................................ 32

Table A.1:Analog Input ............................................... 30

Table A.2:Accuracy for Thermocouple ....................... 31

Table A.3:Isolated Digital Input .................................. 31

Table A.4:Isolated Digital Output ............................... 32

Table A.5:General ........................................................ 32

Appendix B Function Block............................................... 34

Appendix C Firmware Download Utility ......................... 36

Figure C.1:Install Firmware Downloa d Utili ty Sc ree n 36

Figure C.2:USB Download Utility .............................. 37

Figure C.3:Firmw a re Selection ........................... ......... 37

Figure C.4:Firmware Down loa d C o mpleted. ............... 38

Appendix D Analog Input Calibration ............................. 43

Calibration................................................ 44

D.1 Voltage Input

Figure D.1:USB-4718 Device Setting window .......... 45

Figure D.2:USB-4718 Calibration Wizard 46

Figure D.3:Zero range calibration complete. ............... 46

Figure D.4:Full range calibration ................... ............. 47

Figure D.5: Calibration Complete ............................ ... 47

D.2 Voltage Input Calibration................................................ 48

Figure D.6:Select the current input range setting ........ 48

USB-4718 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-4718
Sections include:

• Features

• Applications

• Installation Guide

• Software Overview

• Device Driver

• Programming Roadmap

DAS module, a

guide for installation, and

Module.

Chapter 1 Introduction

USB-4718 offers 8 thermocouple inputs with 16-bit resolution, up to

0.1% input range accuracy, or 4~20 mA inputs. Reliable and rugged
enough

for industrial applications, yet inexpensive enough for home
projects, USB-4718
capability to

is

the perfect way to add measurement and control

any USB capable computer. The USB-4718 is fully USB
plug and play and easy to use. It obtains all required power from the USB
port, so no external

power connection is ever required.

1.1 Features

USB-4718 has the most requested measurement & control functions:

• 8 differential thermocouple input channels

• 16 bits resolution

• Software configurable for thermocouple, low level voltage or

current inputs.

• Wiring burned-out detectable function (Thermo mode)

• 2,500 Vdc isolation

• Watchdog Timer

• Supports 0~20 & 4~20mA current inputs.

• Bus-powered

• Device status LED indicator

• Removable on-module wiring terminal

• USB 2.0 Support

• Hot swappable

Note: For detailed specifications of USB-4718, please

refer

to Appendix A, Specifications.

1.2 Applications

• Temperature measurement

• Industrial ON/OFF control

• Industrial and Lab. automation

USB-4718 User Manual 2

1.3 Installation Guide

Before you install your USB-4718 module, please make sure you have
the following necessary

• USB-4718 DAS Module

• Shielded USB 2.0 cable (1.8 m)

• Driver software DLL drivers (included in the companion

CD-ROM)

.

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-

components:

1.1 on the next page provides a concise

3 Chapter 1

Figure 1.1: Installation Flow Chart

USB-4718 User Manual 4

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)

to help fully exploit the functions of your USB-4718

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

as another option, although this is not recommended due

users are allowed to use register- level

nature.

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
works seamlessly with development tools such as Visual C++, Visual
Basic

Device Drivers for Windows 2000/XP

5 Chapter 1

1.5 Device Driver Programming Roadmap

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 is included in the Device Drivers Manual 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

Pr o g r a m F i l e s /Omega/USB-4700/Examples

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

Device Drivers

Drivers Manual.

USB-4718 User Manual 6

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

1.5.2 Programming with Device Drivers Function Library

The

Device Drivers offer a rich function library that can be utilized in
various application programs.
APIs that
Basic.

support many development tools, such as Vi sual C++, Visual

This function library consists of numerous

1.5.3 Troubleshooting Device Drivers Error

Driver functions will return a status code when they are called to perform a
certain task for the application. When a function returns a
zero, it

means the function has failed to perform its designated function.
To troubleshoot the Device
DRV_GetErrorMessage function to return the error message.
Alternatively,
in the Device
IDs and the Error

you can refer to the Device Drivers Error Codes Appendix

Drivers Manual for a detailed listing of Error Codes, Error

Messages.

Drivers error, you can pass the error code to

7 Chapter 1

code that is not

USB-4718 User Manual 8

2

2

Installation

This chapter has a package item check­list,

proper instructions about unpack­ing and step-by-step procedures
both

driver and USB installation..

Sections include:

• Unpacking

• Driver Installation

• Hardware Installation

• Device Setup & Configuration

• Device T e sting

• Hardware Uninstallation

for

Chapter 2 Installation

2.1 Unpacking

After receiving your USB-4718 package, please inspect its contents first.
The

package should contain the following items:

• USB-4718 Module

• Shielded USB 2.0 Cable (1.8 m)

• Companion CD-ROM (DLL driver included)

The USB-4718 Module harbors certain electronic components vulnerable
to

electrostatic discharge (ESD). ESD could easily damage the integrated

circuits and certain components
paid attent ion to.

bag, you should take followi ng precautions
damage:

• Touch the metal part of your computer chassis with your hand to dis-

• Make contact between the antistatic bag and ground before op ening the

static electricity accumulated on your body. One can also use a

charge
grounding strap.

bag.

if preventive measures are not carefully

Before removing the module from the antistatic plast ic

After taking out the module, you should first:

Inspect the module for any possible signs of external damage (loose or
damaged components,
notify

our service department or our local sales representative immedi-

ately. Avoid using

• Avoid physical contact with materials that could hold static
electricity such

USB-4718 User Manual 10

etc.). If the module is visibly damaged, please

a damaged module with your system.

as

plastic, vinyl and Styrofoam.

to ward off possible ESD

2.2 Driver Installation

We recommend you install the software driver before you install the
USB-4718 module into your system, since
installation process.

The 32-bit DLL driver Setup program for the USB-4718 module is
included
package. Please

on

the companion CD-ROM that is shipped with your module

follow the steps below to install the driver software:

Step 1:

Insert the companion CD-ROM into your CD-ROM drive.

Step 2:

The Setup program will be launched automatically if you have the

auto-play

function enabled on your system.

.

Note:

If the auto-play f un ction is not enabled on your

computer, use Windows
command to execute Setu p .e xe
CD-ROM.

Step3:

Click Continue

, and select the Installation

11 Chapter 2

this will guarantee a smooth

Explorer or Windows Run

on the companion

option

Step4:

Select the specific device and then just follow the installation
instructions step by step to complete your device
setup.

driver installation and

For further information on driver-related issues, an online version of the
Device Drivers Manual is

Start/Programs/Omega USB-4700 series/Device Driver’s

available by accessing the following path:

Manual

2.3 Hardware Installation

Note: Make sure you have insta lle d th e so ftware driver

before you install
Section 2.2 Driver Installation )

the module (please refer to

After the DLL driver installation is completed, you can now go on to
install

the USB-4718 module in any USB port that supports the USB

1.1/2.0 standard,
computer’s user manual or
Please follow

on

your computer. It is suggested that you refer to the

related documentation if you have any doubts.

the steps below to install the module on your system.

Step 1: Touch the metal part on the surface of your computer to neutralize

the static electricity that

might be in your body.

Step 2: Plug your USB module into the selected USB port. Hold the mod-

ule only by its edges
force

must be avoided; otherwise the module might get damaged.

Plug the module firmly into place. Use of excessive

Note:

In case you installed the module without installing

the DLL driver first,
nize your
reboot, and

module as an “unknown d evice” after

Windows 2000/XP will recog-

will prompt you to provide necessary
driver. You sho uld ignore the prompt ing me ssages
(just click the Cancel butto n ) an d se t up the drive r
according to the steps described
Driver Installation.

in Section 2.2

USB-4718 User Manual 12