KUSB-3100
Getting Started Manual
KUSB3100-903-01 Rev. A / January 2005
www.keithley.com
A GREATER MEASURE OF CONFIDENCE
WARRANTY
Keithley Instruments, Inc. warrants this product to be free from defects in material and workmanship for a period of 3 years from
date of shipment.
Keithley Instruments, Inc. warrants the following items for 90 days from the date of shipment: probes, cables, rechargeable batteries,
diskettes, and documentation.
During the warranty period, we will, at our option, either repair or replace any product that proves to be defective.
To exercise this warranty, write or call your local Keithley representative, or contact Keithley headquarters in Cleveland, Ohio.
You will be given prompt assistance and return instructions. Send the product, transportation prepaid, to the indicated service facil
ity. Repairs will be made and the product returned, transportation prepaid. Repaired or replaced products are warranted for the balance of the original warranty period, or at least 90 days.
LIMITATION OF WARRANTY
This warranty does not apply to defects resulting from product modification without Keithley’s express written consent, or misuse
of any product or part. This warranty also does not apply to fuses, software, non-rechargeable batteries, damage from battery leak
age, or problems arising from normal wear or failure to follow instructions.
THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING ANY IMPLIED
WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. THE REMEDIES PROVIDED HEREIN
ARE BUYER’S SOLE AND EXCLUSIVE REMEDIES.
-
-
NEITHER KEITHLEY INSTRUMENTS, INC. NOR ANY OF ITS EMPLOYEES SHALL BE LIABLE FOR ANY DIRECT,
INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OF ITS INSTRU
MENTS AND SOFTWARE EVEN IF KEITHLEY INSTRUMENTS, INC., HAS BEEN ADVISED IN ADVANCE OF THE
POSSIBILITY OF SUCH DAMAGES. SUCH EXCLUDED DAMAGES SHALL INCLUDE, BUT ARE NOT LIMITED TO:
COSTS OF REMOVAL AND INSTALLATION, LOSSES SUSTAINED AS THE RESULT OF INJURY TO ANY PERSON,
OR DAMAGE TO PROPERTY.
A G R E A T E R M E A S U R E O F C O N F I D E N C E
Keithley Instruments, Inc.
-
Corporate Headquarters • 28775 Aurora Road • Cleveland, Ohio 44139
440-248-0400 • Fax: 440-248-6168 • 1-888-KEITHLEY (534-8453) • www.keithley.com
12/04
KUSB-3100
Getting Started Manual
©2005, Keithley Instruments, Inc.
All rights reserved.
First Printing, January 2005
Cleveland, Ohio, U.S.A.
Document Number: KUSB3100-903-01
Rev. A
Manual Print History
The print history shown below lists the printing dates of all Revisions and Addenda created for this manual. The Revision Level letter increases alphabetically as the manual undergoes subsequent updates. Addenda, which are released
between Revisions, contain important change information that the user should incorporate immediately into the manual.
Addenda are numbered sequentially. When a new Revision is created, all Addenda associated with the previous Revision
of the manual are incorporated into the new Revision of the manual. Each new Revision includes a revised copy of this
print history page.
Revision A (Document Number KUSB3100-903-01A) ...................................................................... January 2005
All Keithley product names are trademarks or registered trademarks of Keithley Instruments, Inc.
Other brand and product names are trademarks or registered trademarks of their respective holders.
Safety Precautions
The following safety precautions should be observed before using
this product and any associated instrumentation. Although some in
struments and accessories would normally be used with non-hazardous voltages, there are situations where hazardous conditions
may be present.
This product is intended for use by qualified personnel who recognize shock hazards and are familiar with the safety precautions required to avoid possible injury. Read and follow all installation,
operation, and maintenance information carefully before using the
product. Refer to the manual for complete product specifications.
If the product is used in a manner not specified, the protection provided by the product may be impaired.
The types of product users are:
Responsible body is the individual or group responsible for the use
and maintenance of equipment, for ensuring that the equipment is
operated within its specifications and operating limits, and for en
suring that operators are adequately trained.
Operators use the product for its intended function. They must be
trained in electrical safety procedures and proper use of the instru
ment. They must be protected from electric shock and contact with
hazardous live circuits.
Maintenance personnel perform routine procedures on the product to keep it operating properly, for example, setting the line voltage or replacing consumable materials. Maintenance procedures
are described in the manual. The procedures explicitly state if the
operator may perform them. Otherwise, they should be performed
only by service personnel.
Service personnel are trained to work on live circuits, and perform
safe installations and repairs of products. Only properly trained ser
vice personnel may perform installation and service procedures.
Keithley products are designed for use with electrical signals that
are rated Measurement Category I and Measurement Category II, as
described in the International Electrotechnical Commission (IEC)
Standard IEC 60664. Most measurement, control, and data I/O sig
nals are Measurement Category I and must not be directly connected to mains voltage or to voltage sources with high transient overvoltages. Measurement Category II connections require protection
for high transient over-voltages often associated with local AC
mains connections. Assume all measurement, control, and data I/O
connections are for connection to Category I sources unless other
wise marked or described in the Manual.
Exercise extreme caution when a shock hazard is present. Lethal
voltage may be present on cable connector jacks or test fixtures.
The American National Standards Institute (ANSI) states that a
shock hazard exists when voltage levels greater than 30V RMS,
42.4V peak, or 60VDC are present. A good safety practice is to ex-
-
pect that hazardous voltage is present in any unknown circuit
before measuring.
Operators of this product must be protected from electric shock at
all times. The responsible body must ensure that operators are pre
vented access and/or insulated from every connection point. In
some cases, connections must be exposed to potential human con
tact. Product operators in these circumstances must be trained to
protect themselves from the risk of electric shock. If the circuit is
capable of operating at or above 1000 volts, no conductive part of
the circuit may be exposed.
Do not connect switching cards directly to unlimited power circuits.
They are intended to be used with impedance limited sources.
NEVER connect switching cards directly to AC mains. When con
necting sources to switching cards, install protective devices to limit
fault current and voltage to the card.
Before operating an instrument, make sure the line cord is connect-
ed to a properly grounded power receptacle. Inspect the connecting
cables, test leads, and jumpers for possible wear, cracks, or breaks
before each use.
-
When installing equipment where access to the main power cord is
restricted, such as rack mounting, a separate main input power dis
connect device must be provided, in close proximity to the equipment and within easy reach of the operator.
For maximum safety, do not touch the product, test cables, or any
other instruments while power is applied to the circuit under test.
ALWAYS remove power from the entire test system and discharge
any capacitors before: connecting or disconnecting cables or jump
ers, installing or removing switching cards, or making internal
changes, such as installing or removing jumpers.
-
Do not touch any object that could provide a current path to the
common side of the circuit under test or power line (earth) ground.
Always make measurements with dry hands while standing on a
dry, insulated surface capable of withstanding the voltage being
measured.
-
The instrument and accessories must be used in accordance with its
specifications and operating instructions or the safety of the equip
ment may be impaired.
Do not exceed the maximum signal levels of the instruments and ac-
-
cessories, as defined in the specifications and operating information, and as shown on the instrument or test fixture panels, or
switching card.
When fuses are used in a product, replace with same type and rating
for continued protection against fire hazard.
-
-
-
-
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5/03
Chassis connections must only be used as shield connections for
measuring circuits, NOT as safety earth ground connections.
If you are using a test fixture, keep the lid closed while power is applied to the device under test. Safe operation requires the use of a
lid interlock.
If a screw is present, connect it to safety earth ground using the
wire recommended in the user documentation.
The ! symbol on an instrument indicates that the user should refer to the operating instructions located in the manual.
The symbol on an instrument shows that it can source or measure 1000 volts or more, including the combined effect of normal
and common mode voltages. Use standard safety precautions to
avoid personal contact with these voltages.
The symbol indicates a connection terminal to the equipment
frame.
The WARNING heading in a manual explains dangers that might
result in personal injury or death. Always read the associated information very carefully before performing the indicated procedure.
The CAUTION heading in a manual explains hazards that could
damage the instrument. Such damage may invalidate the warranty.
Instrumentation and accessories shall not be connected to humans.
Before performing any maintenance, disconnect the line cord and
all test cables.
To maintain protection from electric shock and fire, replacement
components in mains circuits, including the power transformer, test
leads, and input jacks, must be purchased from Keithley Instruments. Standard fuses, with applicable national safety approvals,
may be used if the rating and type are the same. Other components
that are not safety related may be purchased from other suppliers as
long as they are equivalent to the original component. (Note that se
lected parts should be purchased only through Keithley Instruments
to maintain accuracy and functionality of the product.) If you are
unsure about the applicability of a replacement component, call a
Keithley Instruments office for information.
To clean an instrument, use a damp cloth or mild, water based
cleaner. Clean the exterior of the instrument only. Do not apply
cleaner directly to the instrument or allow liquids to enter or spill on
the instrument. Products that consist of a circuit board with no case
or chassis (e.g., data acquisition board for installation into a com
puter) should never require cleaning if handled according to instructions. If the board becomes contaminated and operation is affected,
the board should be returned to the factory for proper cleaning/ser
vicing.
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Table of Contents
About this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
Intended Audience. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
How this Manual is Organized . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
Conventions Used in this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . x
Related Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x
Where To Get Help. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
Chapter 1: Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Key Hardware Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Getting Started Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Chapter 2: Preparing to Use a Module. . . . . . . . . . . . . . . . . . 5
Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Checking the System Requirements . . . . . . . . . . . . . . . . . . . . . . . . 8
Installing the Software. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Chapter 3: Setting Up and Installing the Module . . . . . . . . 11
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Attaching Modules to the Computer. . . . . . . . . . . . . . . . . . . . . . . 14
Connecting One or Two Modules Directly to the USB
Ports of Your Computer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Connecting Multiple Modules Using an Expansion Hub . . 16
Changing the Name of a Module (Optional) . . . . . . . . . . . . . . . . 18
Chapter 4: Wiring Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Preparing to Wire Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Wiring Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Wiring Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
vii
Contents
Connecting Single-Ended Analog Input Signals . . . . . . . . . . . . . 24
Connecting Analog Output Signals. . . . . . . . . . . . . . . . . . . . . . . . 25
Connecting Digital I/O Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Connecting Counter/Timer Signals . . . . . . . . . . . . . . . . . . . . . . . 28
Connecting Signals for an Event Counting Operation . . . . 28
Connecting Signals for a Frequency Measurement
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Connecting Signals for an Edge-to-Edge Measurement
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Connecting Signals for a Rate Generation Operation . . . . . 34
Chapter 5: Verifying the Operation of a Module . . . . . . . . . 35
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Running the Quick Data Acq Application . . . . . . . . . . . . . . . . . . 38
Performing a Single-Value Analog Input Operation . . . . . . 39
Performing a Single-Value Analog Output Operation . . . . 40
Performing a Continuous Analog Input Operation. . . . . . . 41
Performing a Single-Value Digital Input Operation . . . . . . 42
Performing a Single-Value Digital Output Operation. . . . . 42
Performing a Frequency Measurement Operation. . . . . . . . 43
Performing a Pulse Output Operation. . . . . . . . . . . . . . . . . . 44
viii
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
About this Manual
This manual describes how to install and set up your KUSB-3100
module and device driver, and verify that your module is working
properly.
Intended Audience
This document is intended for engineers, scientists, technicians, or
others responsible for installing and setting up a KUSB-3100 module
to perform data acquisition operations. It is assumed that you are
familiar with the requirements of your application. It is also assumed
that you are familiar with the Microsoft
Windows XP.
How this Manual is Organized
This manual is organized as follows:
• Chapter 1, “Overview,” describes the key features of the
KUSB-3100 hardware and software, and provides an overview of
the getting started procedure.
®
Windows® 2000 or
• Chapter 2, “Preparing to Use a Module,” describes how to
unpack the module, check the system requirements, and install
the software using Windows 2000 or Windows XP.
• Chapter 3, “Setting Up and Installing the Module,” describes
how to set up the KUSB-3100 module and configure the device
driver.
ix
About this Manual
Conventions Used in this Manual
• Chapter 4, “Wiring Signals,” describes how to wire signals to the
module.
• Chapter 5, “Verifying the Operation of a Module,” describes how
to verify the operation of the module with the Quick Data Acq
application.
An index completes this manual.
The following conventions are used in this manual:
• Notes provide useful information that requires special emphasis,
cautions provide information to help you avoid losing data or
damaging your equipment, and warnings provide information to
help you avoid catastrophic damage to yourself or your
equipment.
• Items that you select or type are shown in bold.
• Courier font is used to represent source code.
Related Information
Refer to the following documents for more information on using the
KUSB-3100 module:
• KUSB-3100 User’s Manual provided with the module. This
manual describes the features of the KUSB-3100 module and
device driver.
• DataAcq SDK User’s Manual. For programmers who are
developing their own application programs using the Microsoft
C compiler, this manual describes how to use the DT-Open
TM
Layers
access the capabilities of your module.
x
DataAcq SDKTM in Windows 2000 or Windows XP to
• DTx-EZ Getting Started Manual. This manual describes how to use
the ActiveX controls provided in DTx-EZ
capabilities of your module in Microsoft Visual Basic® or Visual
C++®.
• DT-LV Link Getting Started Manual. This manual describes how to
use DT-LV Link
language to access the capabilities of your module.
• Microsoft Windows 2000 or Windows XP documentation.
• USB web site (http://www.usb.org).
Where To Get Help
Should you run into problems installing or using your KUSB-3100
module, please call the Keithley Technical Support Department.
About this Manual
TM
to access the
TM
with the LabVIEW® graphical programming
xi
About this Manual
xii
1
Overview
Key Hardware Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Getting Started Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1
Chapter 1
Key Hardware Features
Table 1 lists the key features of the KUSB-3100 module.
Table 1: Key Features of the KUSB-3100 Module
Analog
Inputs
Analog
Outputs
Resolution
I/O
Range
Sample
Rate
Digital
I/O
Counter/
a
Timer
8 SE
a. This counter/timer channel allows you to perform event counting, frequency
measurement, edge-to-edge measurement, and continuous pulse output (rate generation)
operations.
2
12-bit ±10 V
50 kS/s 8
input,
8
output
1
2
Software
The software for the KUSB-3100 module, which is shipped on the
Keithley CD that is provided with the module, includes the following
software components:
Overview
1
• Device Driver − This software must be installed and loaded
before you can use a KUSB-3100 module with any of the
supported software packages or utilities.
• The Quick Data Acq application − This application provides a
quick way to get your module up and running. Using the Quick
Data Acq application, you can verify the features of the module,
display data on the screen, and save data to disk.
• DataAcq SDK − This DT-Open Layers Software Develop Kit
(SDK) allows programmers to develop application programs for
the KUSB-3100 using the Microsoft C compiler in Windows 2000
or Windows XP.
• DTx-EZ − This software package contains ActiveX controls that
allow Microsoft Visual Basic® or Visual C++® programmers to
access the capabilities of the KUSB-3100 module.
• DT-LV Link − This software package allows LabVIEW®
programmers to access the capabilities of the KUSB-3100 module.
1
1
1
1
1
1
1
1
3
Chapter 1
Getting Started Procedure
The flow diagram shown in Figure 1 illustrates the steps needed to
get started using the KUSB-3100 module. This diagram is repeated in
each chapter; the shaded area in the diagram shows you where you
are in the getting started procedure.
Preparing to Use a Module
(see Chapter 2 starting on page 5)
Set Up and Install the Module
(see Chapter 3 starting on page 11)
Wire Signals to the Module
(see Chapter 4 starting on page 19)
Verify the Operation of the Module
(see Chapter 5 starting on page 35)
Figure 1: Getting Started Flow Diagram
4
2
Preparing to Use a
Module
Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Checking the System Requirements . . . . . . . . . . . . . . . . . . . . . . . . 8
Installing the Software. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5
Chapter 2
Prepare to Use a Module
(this chapter)
Set Up and Install the Module
(see Chapter 3 starting on page 11)
Wire Signals to the Module
(see Chapter 4 starting on page 19)
Verify the Operation of the Module
(see Chapter 5 starting on page 35)
6
Unpacking
Open the shipping box and verify that the following items are
present:
• KUSB-3100 module,
•USB cable, and
• Keithley CD.
Preparing to Use a Module
2
2
If an item is missing or damaged, contact Keithley Technical Support.
Once you have unpacked your module, check the system
requirements, as described in the next section.
2
2
2
2
2
2
2
7
Chapter 2
Checking the System Requirements
For reliable operation, your KUSB-3100 module requires the
following:
• Windows 2000 or Windows XP (Professional Edition) operating
system.
For USB Ver. 2.0 support, make sure that you install Service Pack
1 (for Windows XP) or Service Pack 4 (for Windows 2000). In
addition, for some systems, you may have to disable standby
mode. If you are not sure whether you are using USB Ver. 1.1 or
Ver. 2.0, run the Open Layers Control Panel applet, described on
page 13.
• One or more USB ports (Ver. 2.0 or Ver. 1.1). USB Ver. 2.0 is
recommended for optimal performance.
•One CD-ROM drive.
Once you have verified that your system meets the system
requirements, install the software, as described in the next section.
8
Installing the Software
To install the driver software, Data Acq SDK, DTx-EZ, and the Quick
Data Acq software, perform the following steps:
Preparing to Use a Module
2
1. Insert the Keithley CD into your CD-ROM drive.
2. Click Start from the Task Bar, then click Run.
The Run dialog box appears.
3. In the Command Line edit box, enter D:\Setup.Exe.
If your CD-ROM is not in drive D:, enter the letter of the drive where
your CD-ROM is located. The welcome screen appears.
4. Click Install Drivers and SDK.
5. Click Install now!
The installation wizard appears.
6. Click Next.
You are prompted for the destination location.
7. Either change the directory path and/or name using Browse or
accept the default directory, then click Next.
8. Click Next to copy the files.
9. Click Finish.
10. Click Quit Installer.
2
2
2
2
2
2
2
2
9
Chapter 2
10
3
Setting Up and Installing
the Module
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Attaching Modules to the Computer. . . . . . . . . . . . . . . . . . . . . . . 14
Changing the Name of a Module (Optional) . . . . . . . . . . . . . . . . 18
11
Chapter 3
Prepare to Use a Module
(see Chapter 2 starting on page 5)
Set Up and Install the Module
(this chapter)
Wire Signals to the Module
(see Chapter 4 starting on page 19)
Verify the Operation of the Module
(see Chapter 5 starting on page 35)
Note: The KUSB-3100 module is factory-calibrated. You can recalibrate
the module using the instructions in the KUSB-3100 User's Manual.
12
Overview
You can attach a KUSB-3100 module to the host computer in one of
two ways:
• Connect directly to a USB port of the host computer, described on
• Connect to one or more self-powered USB hubs, described on
Setting Up and Installing the Module
page 13. Use this method if one or two modules are sufficient for
your application.
page 16. Use this method if your application requires more than
two modules connected to the host computer.
3
3
3
Note: The KUSB-3100 module is a low-power device (using less
than 200
supply.
mA); therefore, it does not require an external power
3
3
3
3
3
3
13
Chapter 3
Attaching Modules to the Computer
This section describes how to attach a KUSB-3100 module to the host
computer.
Note: Most computers have two USB ports that allow direct
connection to USB devices. If your application requires more than
two KUSB-3100 modules, you can expand the number of USB
devices attached to a single USB port by using expansion hubs. For
more information, refer to page 16.
You can unplug a module, then plug it in again, if you wish, without
causing damage. This process is called hot-swapping. Your
application may take a few seconds to recognize a module once it is
plugged back in.
Connecting One or Two Modules Directly to the USB Ports of Your Computer
14
To connect one or two KUSB-3100 modules directly to the USB ports
of your computer, perform the following steps:
1. Attach one end of the USB cable to the USB port on the module.
2. Attach the other end of the USB cable to one of the USB ports on
the host computer, as shown in Figure 2.
The operating system automatically detects the USB module. If the
module is attached correctly, the LED on the module turns green.
Setting Up and Installing the Module
Host Computer
Figure 2: Attaching the Module to the Host Computer
3. Repeat the steps to attach another KUSB-3100 module to the host
computer, if desired.
USB Ports
USB Cable
KUSB-3100 Modules
3
3
3
3
3
3
3
3
3
15
Chapter 3
Connecting Multiple Modules Using an Expansion Hub
Expansion hubs are powered by their own external power supply.
Theoretically, you can connect up to five expansion hubs to a USB
port on the host computer. However, the practical number of
KUSB-3100 modules that you can connect to a single USB port
depends on the throughput you want to achieve. Each of the hubs
supports up to four modules.
Note: The bandwidth of the USB Ver. 1.1 bus is 12 Mbits/second;
the bandwidth of the USB Ver. 2.0 bus is 480 Mbits/second.
Particularly if you are using the USB Ver. 2.0 bus, you may be limited
in the number of modules that you can connect to a single USB port.
To connect multiple KUSB-3100 modules to an expansion hub,
perform the following steps:
16
1. Attach one end of the USB cable to the module and the other end
of the USB cable to an expansion hub.
2. Connect the power supply for the expansion hub to an external
power supply.
3. Connect the expansion hub to the USB port on the host computer
using another USB cable.
The operating system automatically detects the USB device. If the
module is attached correctly, the LED on the module turns green.
Setting Up and Installing the Module
4. Repeat these steps until you have attached the number of
expansion hubs (up to five) and modules (up to four per hub)
that you require. Refer to Figure 3.
The operating system automatically detects the USB devices as they are
installed.
3
3
Host Computer
KUSB-3100 Module
USB Cables
USB Cable
Power Supply
for Hub
KUSB-3100 Module
USB Cables
Figure 3: Attaching Multiple KUSB-3100 Modules
Using Expansion Hubs
KUSB-3100 Module
USB Cable
Expansion Hubs
KUSB-3100 Module
Power Supply
for Hub
3
3
3
3
3
3
3
17
Chapter 3
Changing the Name of a Module (Optional)
To change the name of a KUSB-3100 module, configure the device
driver by performing the following steps:
1. From the Windows Start menu, select Settings|Control Panel.
2. From the Control Panel, double-click Open Layers Control
Panel.
The Data Acquisition Control Panel dialog box appears.
3. If you want to rename the module, click the KUSB-3100 module
that you want to rename, then click Edit Name.
4. Enter a new name for the module, then click OK. The name is
used to identify the module in all subsequent applications.
5. When you are finished configuring the module, click Close.
6. Repeat steps 3 to 5 for the other modules that you want to
configure.
7. Close the Data Acquisition Control Panel dialog box.
18
Continue with the instructions on wiring in Chapter 4 starting on
page 19.
4
Wiring Signals
Preparing to Wire Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Connecting Single-Ended Analog Input Signals . . . . . . . . . . . . . 24
Connecting Analog Output Signals. . . . . . . . . . . . . . . . . . . . . . . . 25
Connecting Digital I/O Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Connecting Counter/Timer Signals . . . . . . . . . . . . . . . . . . . . . . . 28
19
Chapter 4
Preparing to Use a Module
(see Chapter 2 starting on page 5)
Set Up and Install the Module
(see Chapter 3 starting on page 11)
Wire Signals
(this chapter)
Verify the Operation of the Module
(see Chapter 5 starting on page 35)
20
Preparing to Wire Signals
Note: To avoid electrostatic sensitivity, it is recommended that you
unplug your KUSB-3100 module from the computer before wiring
signals.
This section provides recommendations and information about
wiring signals to a KUSB-3100 module.
Wiring Recommendations
Keep the following recommendations in mind when wiring signals to
an ECONseries module:
• Use individually shielded twisted-pair wire (size 16 to 26 AWG)
in highly noisy electrical environments.
• Separate power and signal lines by using physically different
wiring paths or conduits.
Wiring Signals
4
4
4
4
4
• To avoid noise, do not locate the box and cabling next to sources
that produce high electromagnetic fields, such as large electric
motors, power lines, solenoids, and electric arcs, unless the
signals are enclosed in a mumetal shield.
• Prevent electrostatic discharge to the I/O while the box is
operational.
• Connect all unused analog input channels to analog ground.
4
4
4
4
21
Chapter 4
Wiring Method
You wire signals to the KUSB-3100 module using the screw terminals
on the module.
modules.
Table 2: KUSB-3100 Screw Terminal Assignments
Table 2 lists the screw terminal assignments for the
Screw
Terminal
20 USB +5 V Out 40 Ext Trig In
19 Ground 39 Ext Clock In
18 Counter 0 In 38 Ground
17 Counter 0 Out 37 Digital Output 7
16 Counter 0 Gate 36 Digital Output 6
15 Ground 35 Digital Output 5
14 DAC 1 34 Digital Output 4
13 DAC 1 Return 33 Digital Output 3
12 DAC 0 32 Digital Output 2
11 DAC 0 Return 31 Digital Output 1
10 2.5 V Reference 30 Digital Output 0
9 Analog Ground 29 Ground
8 Analog Input CH7 High 28 Digital Input 7
7 Analog Input CH6 High 27 Digital Input 6
Signal
Screw
Terminal
Signal
22
6 Analog Input CH5 High 26 Digital Input 5
5 Analog Input CH4 High 25 Digital Input 4
4 Analog Input CH3 High 24 Digital Input 3
Table 2: KUSB-3100 Screw Terminal Assignments (cont.)
Wiring Signals
Screw
Terminal
3 Analog Input CH2 High 23 Digital Input 2
2 Analog Input CH1 High 22 Digital Input 1
1 Analog Input CH0 High 21 Digital Input 0
Signal
Screw
Terminal
Signal
4
4
4
4
4
4
4
4
4
23
Chapter 4
Connecting Single-Ended Analog Input Signals
The KUSB-3100 module supports 8 single-ended analog input
channels.
signals (channels 0 and 1, in this case) to the screw terminals of the
module.
Figure 4 shows how to connect single-ended voltage input
-
source 1
V
-
Vsource 0
Signal Source
Analog Ground
+
Analog In 1 High
+
Analog In 0 High
9
2
1
KUSB-3100 Module
Figure 4: Connecting Single-Ended Inputs
24
Connecting Analog Output Signals
The KUSB-3100 module supports two analog output channels (DAC0
and DAC1).
signal (DAC0, in this case) to the KUSB-3100 module.
Figure 5 shows how to connect an analog output voltage
Wiring Signals
4
4
DAC0
Load
Figure 5: Connecting Analog Outputs to a Screw Terminal Panel
DAC0 Return
12
11
KUSB-3100 Module
4
4
4
4
4
4
4
25
Chapter 4
Connecting Digital I/O Signals
The KUSB-3100 module supports eight, fixed digital input lines and
eight, fixed digital output lines.
digital input signals (lines 0 and 1, in this case) to the screw terminals
of a KUSB-3100 module.
Figure 6 shows how to connect
29
22
21
KUSB-3100 Module
Ground
Digital Input 1
Digital Input 0
Figure 6: Connecting Digital Inputs
TTL Inputs
26
Wiring Signals
Figure 7 shows how to connect digital output signals (line 0, in this
case) to the screw terminals of aKUSB-3100 module.
4
38
30
KUSB-3100 Module
Figure 7: Connecting Digital Outputs
Ground
Out = LED On
Digital Output 0
500 Ω
4
+
5 V
-
4
4
4
4
4
4
4
27
Chapter 4
Connecting Counter/Timer Signals
The KUSB-3100 module provides one counter/timer channel that you
can use to perform the following operations:
• Event counting,
• Frequency measurement,
• Edge-to-edge measurement, and
• Continuous pulse output (rate generation).
This section describes how to connect counter/timer signals for these
operation modes. Refer to the KUSB-3100 User’s Manual for more
information about using the counter/timers.
Connecting Signals for an Event Counting Operation
Figure 8 shows how to connect counter/timer signals to the screw
terminals on the KUSB-3100 module to perform an event counting
operation using an external gate.
28
In this example, the counter counts the number of rising edges that
occur on the Counter 0 In signal when the Counter 0 Gate signal is in
the active state (as specified by software). Refer to the KUSB-3100
User’s Manual for more information.
Wiring Signals
Ground
Signal
Source
Counter 0 In
External
Gating
Switch
Figure 8: Connecting Counter/Timer Signals for an Event Counting
Operation Using an External Gate
Figure 9 shows how to connect counter/timer signals to the screw
terminals on the KUSB-3100 module to perform an event counting
operation without using a gate (also called a software gate). The
counter counts the number of rising edges that occur on the Counter
0 In signal.
Counter
0 Gate
Ground
19
18
16
KUSB-3100 Module
4
4
4
4
4
4
4
4
4
29
Chapter 4
Signal
Source
KUSB-3100 Module
Ground
19
Counter 0 In
18
Figure 9: Connecting Counter/Timer Signals for an Event Counting
Operation Without Using a Gate
Connecting Signals for a Frequency Measurement Operation
One way to measure frequency is to use the same wiring as a
standard event counting application that does not use a gate (see
Figure 9 on page 30), then use the Windows timer to determine the
duration over which to count the number of pulses connected to the
Counter 0 In signal. The frequency of the Counter 0 In signal is the
number of counts divided by the duration of the Windows timer.
If you need more accuracy than the Windows timer can provide, you
can connect a pulse of a known duration to the Counter 0 Gate signal,
as shown in
signal is the number of counts divided by the period of the signal
connected to the Counter 0 Gate input.
Figure 10. In this case, the frequency of the Counter 0 In
30
Signal
Source
Ground
Counter 0 In
(Number of pulses counted
during gate period)
Wiring Signals
4
KUSB-3100 Module
19
4
18
Counter 0 Gate
Known Signal
Source
Figure 10: Connecting Counter/Timer Signals for a Frequency Measurement
Operation Using an External Pulse
(Determines period
for count)
16
4
4
4
4
4
4
4
31
Chapter 4
Connecting Signals for an Edge-to-Edge Measurement Operation
Figure 11 shows how to connect counter/timer signals to the
KUSB-3100 module to perform an edge-to-edge measurement
operation on one signal sources. The counter measures the number of
counts between the start edge (in this case, a rising edge on the
Counter 0 Gate signal) and the stop edge (in this case, another rising
edge on the Counter 0 Gate signal).
You specify the start edge and the stop edge in software. Refer to the
KUSB-3100 User’s Manual for more information.
KUSB-3100 Module
Digital Ground
Signal Source
Counter 0 Gate
In this example, the software
returns the number of counts
between the two rising edges
Figure 11: Connecting Counter/Timer Signals for an
Edge-to-Edge Measurement Operation
19
16
32
Wiring Signals
You can use edge-to-edge measurement to measure the following
characteristics of a signal:
• Pulse width – The amount of time that a signal pulse is in a high
or a low state, or the amount of time between a rising edge and a
falling edge or between a falling edge and a rising edge. You can
calculate the pulse width as follows:
− Pulse width = Number of counts/24 MHz
• Period – The time between two occurrences of the same edge
(rising edge to rising edge, or falling edge to falling edge). You
can calculate the period as follows:
− Period = 1/Frequency
4
4
4
− Period = Number of counts/24 MHz
• Frequency – The number of periods per second. You can calculate
the frequency as follows:
− Frequency = 24 MHz/Number of Counts
4
4
4
4
4
4
33
Chapter 4
Connecting Signals for a Rate Generation Operation
Figure 12 shows how to connect counter/timer signals to the screw
terminals of a KUSB-3100 module to perform a rate generation
(continuous pulse output) operation; in this example, an external gate
is used.
Heater
Controller
Ground
Counter 0 Out
External
Gating
Switch
Counter 0
Gate
Ground
KUSB-3100 Module
19
17
16
Figure 12: Connecting Counter/Timer Signals for a Rate Generation
Operation Using an External Gate
34
5
Verifying the Operation of a
Module
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Running the Quick Data Acq Application . . . . . . . . . . . . . . . . . . 38
35
Chapter 5
Prepare to Use a Module
(see Chapter 2 starting on page 5)
Set Up and Install the Module
(see Chapter 3 starting on page 11)
Wire Signals to the Module
(see Chapter 4 starting on page 19)
Verify the Operation of the Module
(this chapter)
36
Overview
Quick Data Acq allows you to perform the following operations:
• Acquire data from a single analog input channel or digital input
• Acquire data continuously from one or more analog input
Verifying the Operation of a Module
5
port;
5
channels using an oscilloscope, strip chart, or Fast Fourier
Transform (FFT) view;
• Measure the frequency of events (using the Windows system
timer);
• Output data from a single analog output channel or digital
output port;
• Output pulses continuously; and
• Save the input data to disk.
Quick Data Acq is installed automatically when you install the driver
software, described on
page 9.
5
5
5
5
5
5
5
37
Chapter 5
Running the Quick Data Acq Application
To run the Quick Data Acq application, perform the following steps:
1. If you have not already done so, power up your computer and
any attached peripherals.
2. Select Quick Data Acq from the Keithley Instruments\Quick
Data Acq program group.
Note: The Quick Data Acq application allows you to verify basic
operations on the module; however, it may not support all of the
module’s features.
For information on each of the features provided, use the online help
for the Quick Data Acq application by pressing F1 from any view or
selecting the Help menu.
For detailed information on the supported features of the module,
refer to the KUSB-3100 User’s Manual.
38
Verifying the Operation of a Module
Performing a Single-Value Analog Input Operation
To verify that the module can read a single analog input value,
perform the following steps:
1. Connect a voltage source, such as a function generator, to analog
input channel 0 (single-ended mode) on the module. Refer to
page 24 for an example of how to connect a single-ended analog
input.
2. Click the Acquisition menu.
3. Click Single Analog Input.
4. Select the appropriate module from the Board list box.
5. In the Channel list box, select analog input channel 0.
6. In the Range list box, select the range for the channel (±10 V,
±5
V, ±2.5 V, or ±1.25 V). The default is ±10 V.
7. Select Single-ended.
8. Click Get to acquire a single value from analog input channel 0.
The value is displayed on the screen in both text and graphical form.
5
5
5
5
5
5
5
5
5
39
Chapter 5
Performing a Single-Value Analog Output Operation
To verify that the module can output a single analog output value,
perform the following steps:
1. Connect an oscilloscope or voltmeter to DAC 0 on the module.
Refer to page 25 for an example of how to connect analog output
signals.
2. Click the Control menu.
3. Click Single Analog Output.
4. Select the appropriate module from the Board list box.
5. In the Channel list box, select analog output channel 0.
6. In the Range list box, select the output range of DAC 0.
The default is ±10 V.
7. Enter an output value, or use the slider to select a value to output
from DAC0.
8. Click Send to output a single value from DAC 0.
The value that is output is displayed on the screen in both text and
graphical form.
40
Verifying the Operation of a Module
Performing a Continuous Analog Input Operation
To verify that the module can perform a continuous analog input
operation, perform the following steps:
1. Connect known voltage sources, such as the outputs of a function
generator, to analog input channels 0 and 1 on the module (using
the single-ended configuration). Refer to page 24 for an example
of how to connect a single-ended analog input.
2. Click the Acquisition menu.
3. For this example, click Scope.
4. Select the appropriate module from the Board list box.
5. In the Sec/Div list box, select the number of seconds per division
(.1 to .00001) for the display.
6. In the Channels list box, select analog input channel 1, then click
Add to add the channel to the channel list.
Note that, by default, channel 0 is included in the channel list.
7. Click Config from the Toolbar.
8. From the Config menu, select ChannelType, then select
Single-ended.
9. From the Config menu, select Range, then select Bipolar.
This is the default configuration.
5
5
5
5
5
5
10. From the Scope view, double-click the input range of the channel
to change the input range of the module (±10 V, ±5 V, ±2.5 V, or
±1.25
V). The default is ±10 V.
The display changes to reflect the selected range for all the analog input
channels on the module.
11. In the Trigger box, select Auto to acquire data continuously from
the specified channels or Manual to acquire a burst of data from
the specified channels.
5
5
5
41
Chapter 5
12. Click Start from the Toolbar to start the continuous analog input
operation.
The values acquired from each channel are displayed in a unique color
on the oscilloscope view.
13. Click Stop from the Toolbar to stop the operation.
Performing a Single-Value Digital Input Operation
To verify that the module can read a single digital input value,
perform the following steps:
1. Connect a digital input to digital input line 0 of port A on the
module. Refer to page 26 for an example of how to connect a
digital input.
2. Click the Acquisition menu.
3. Click Digital Input.
4. Select the appropriate module from the Board list box.
5. Select digital input port A by clicking Port A.
42
6. Click Get.
The value of each digital input line in port A is displayed on the screen
in both text and graphical form.
Performing a Single-Value Digital Output Operation
To verify that the module can output a single digital output value,
perform the following steps:
1. Connect a digital output to digital output line 0 of digital output
port A on the module. Refer to page 26 for an example of how to
connect a digital output.
2. Click the Control menu.
3. Click Digital Output.
4. Select the appropriate module from the Board list box.
Verifying the Operation of a Module
5. Select digital output port A by clicking Port A.
6. Click the appropriate bits to select the type of signal to write from
the digital output lines. If the bit is selected, a high-level signal is
output from the digital output line; if the bit is not selected, a
low-level signal is output from the digital output line.
Optionally, you can enter an output value in the Hex text box.
7. Click Send.
The value of each digital output line of digital output port A is output
and displayed on the screen in both text and graphical form.
Performing a Frequency Measurement Operation
To verify that the module can perform a frequency measurement
operation (using the Windows timer), perform the following steps:
1. Wire an external clock source to counter/timer 0 on the module.
Refer to page 30 for an example of how to connect an external
clock.
2. Click the Acquisition menu.
3. Click Frequency Counter.
4. Select the appropriate module from the Board list box.
5
5
5
5
5
5
5. In the Count Duration text box, enter the number of seconds
during which events will be counted.
6. Click Start to start the frequency measurement operation.
The operation automatically stops after the number of seconds you
specified has elapsed, and the frequency is displayed on the screen.
If you want to stop the frequency measurement operation when it is
in progress, click Stop.
5
5
5
43
Chapter 5
Performing a Pulse Output Operation
To verify that the module can perform a pulse output operation,
perform the following steps:
1. Connect a scope to counter/timer 0 on the module. Refer to page
34 for an example of how to connect a scope (a pulse output) to
counter/timer 0.
2. Click the Control menu.
3. Click Pulse Generator.
4. Select the appropriate module from the Board list box.
5. Select Continuous to output a continuous pulse stream.
6. Click Start to generate the pulse(s).
The results are displayed both in text and graphical form.
7. Click Stop to stop a continuous pulse output operation.
44
Index
A
analog input operations 24
analog inputs 39, 41
analog output operations 25
analog outputs 40
applet, Open Layers Control Panel 8
application wiring
analog inputs 24
analog outputs 25
digital inputs and outputs 26
edge-to-edge measurement 32
event counting 28
frequency measurement 30
period measurement 32
pulse output 34
attaching the module to the computer
13, 14
C
cables, USB 14, 16
changing the name of a module 18
configuring the device driver 18
connecting signals
analog inputs 24
analog outputs 25
digital inputs and outputs 26
edge-to-edge measurement 32
event counting 28
frequency measurement 30
period measurement 32
pulse output 34
connecting to the host computer 14
using an expansion hub 16
Control Panel applet 8
conventions used x
counter/timers
connecting edge-to-edge signals 32
connecting event counting signals 28
connecting frequency measurement
signals
connecting pulse output signals 34
30
D
DataAcq SDK 3
device driver 3
configuring 18
digital inputs 26, 42
digital outputs 26, 42
DT-LV Link 3
DTx-EZ 3
E
edge-to-edge measurement, wiring 32
event counting, wiring 28
F
frequency measurement 30, 33, 43
H
hot-swapping 14
45
Index
L
LEDs 14, 16
O
Open Layers Control Panel applet 8
output pulses 34, 44
P
period measurement 32, 33
preparing to wire signals 21
pulse outputs 34, 44
pulse width 33
Q
Quick Data Acq 3
running 38
R
recommendations for wiring 21
related documents x
requirements 8
running the Quick Data Acq
application
38
W
wiring signals
analog inputs 24
analog outputs 25
digital inputs and outputs 26
edge-to-edge measurement 32
event counting 28
frequency measurement 30
methods 22
period measurement 32
preparing 21
pulse output 34
recommendations 21
S
software supported 3
system requirements 8
U
unpacking 7
USB cable 14, 16
46
All Keithley trademarks and trade names are the property of Keithley Instruments, Inc.
Specifications are subject to change without notice.
All other trademarks and trade names are the property of their respective companies.
A GREATER MEASUR E OF CONFIDENCE
Keithley Instruments, Inc.
Corporate Headquarters • 28775 Aurora Road • Cleveland, Ohio 44139 • 440-248-0400 • Fax: 440-248-6168 • 1-888-KEITHLEY (534-8453) • www.keithley.com
12/04
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