Keithley KUSB-3160 User Manual
KUSB-3160
User’s Manual
KUSB3160-900-01 Rev. A / January 2005
www.keithley.com
A GR
EATER 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 facility. 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 leakage, 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 INSTRUMENTS 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-3160
User’s Manual
©2005, Keithley Instruments, Inc.
All rights reserved.
First Printing, January 2005
Cleveland, Ohio, U.S.A.
Document Number: KUSB3160-900-01A 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 KUSB3160-900-01A) ...................................................................... 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 instruments 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 ensuring 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 instrument. 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 service 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 signals 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 otherwise 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 prevented access and/or insulated from every connection point. In
some cases, connections must be exposed to potential human contact. 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 connecting 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 connected 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 disconnect 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 jumpers, 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 equipment may be impaired.
Do not exceed the maximum signal levels of the instruments and accessories, 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.
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.
5/03
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 selected 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 computer) 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/servicing.
Table of Contents
About this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
Intended Audience. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
What You Should Learn from this Manual. . . . . . . . . . . . . . . . . . ix
Conventions Used in this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . x
Related Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x
Where To Get Help. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
Chapter 1: Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Key Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Supported Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Chapter 2: Principles of Operation . . . . . . . . . . . . . . . . . . . . 5
Digital I/O Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Interrupts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Operation Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Chapter 3: Supported Device Driver Capabilities. . . . . . . . 15
Chapter 4: Programming Flowcharts. . . . . . . . . . . . . . . . . . 25
Single-Value Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Continuous Digital Input Operations . . . . . . . . . . . . . . . . . . . . . . 29
Chapter 5: Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . 33
General Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Service and Support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
vii
Contents
Appendix A: Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 39
Appendix B: Connector Pin Assignments . . . . . . . . . . . . . 43
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
viii
About this Manual
This manual describes the features of the KUSB-3160 module, the
capabilities of the device driver, and how to program the KUSB-3160
module using DT-Open Layers™ software. Troubleshooting
information is also provided.
Intended Audience
This document is intended for engineers, scientists, technicians, or
others responsible for using and/or programming the KUSB-3160
module for data acquisition operations in the Microsoft® Windows
2000 or Windows XP operating systems. It is assumed that you have
some familiarity with data acquisition principles and that you
understand your application.
What You Should Learn from this Manual
This manual provides detailed information about the features of the
KUSB-3160 module and the capabilities of the device driver. It is
organized as follows:
• Chapter 1, “Overview,” describes the major features of the
modules, as well as the supported software and accessories for
the modules.
• Chapter 2, “Principles of Operation,” describes all of the features
of the modules and how to use them in your application.
• Chapter 3, “Supported Device Driver Capabilities,” lists the data
acquisition subsystems and the associated features accessible
using the device driver.
• Chapter 4, “Programming Flowcharts,” describes the processes
you must follow to program the subsystems on the KUSB-3160
module using DT-Open Layers-compliant software.
ix
About this Manual
Conventions Used in this Manual
• Chapter 5, “Troubleshooting,” provides information that you can
use to resolve problems with the modules and the device driver,
should they occur.
• Appendix A, “Specifications,” lists the specifications of the
module.
• Appendix B, “Connector Pin Assignments,” shows the pin
assignments for the connectors and the screw terminal
assignments for the module.
• An index completes this manual.
The following conventions are used in this manual:
• Notes provide useful information or 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.
Related Information
Refer to the following documents for more information on using the
KUSB-3160 module:
• KUSB-3160 Getting Started Manual. This manual describes the
how to install the KUSB-3160 module and related software.
• 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-3160
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 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Supported Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1
Chapter 1
Key Features
The KUSB-3160 is a low-cost, high-power, digital I/O module for the
Universal Serial Bus (USB). The KUSB-3160 module provides the
following major features:
• USB compatibility;
• 64 configurable digital I/O lines (configurable in banks of eight)
and 32 dedicated digital input lines for nonclocked monitoring or
control.
• Interrupt-on-change on 16 dedicated digital input lines.
• External solid-state relay module support. Digital outputs can
drive sink 12 mA, source 100 kΩ pullup.
• Isolated output common from the USB bus to 500 V peak.
2
Supported Software
The following software is available for use with the KUSB-3160
module:
• Device Driver − This software is provided on the CD shipped
with the module. The device driver allows you to use a
KUSB-3160 module with any of the supported software packages
or utilities. Refer to the KUSB-3160 Getting Started Manual for
more information on loading and configuring the device driver.
• Quick Data Acq application − This application provides a quick
way to get a KUSB-3160 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-3160 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-3160 module.
• DT-LV Link − This software package allows LabVIEW®
programmers to access the capabilities of the KUSB-3160 module.
Overview
1
1
1
1
1
1
1
1
1
3
Chapter 1
Accessories
The following accessories are provided for the KUSB-3160 module:
• KUSB-STP100 − a 100 mm x 160 mm screw terminal panel that
connects to the KUSB-3160 module using the KUSB-CABDIO
cable. This screw terminal panel allows you to connect all of the
input and output connections that are supported by a KUSB-3160
module. LEDs on up to 64 of the outputs light when the outputs
are low. Note that the LEDs are not provided for the dedicated
digital input lines.
• KUSB-CABDIO − a 1-meter, 100-conductor cable that connects
the KUSB-STP100 screw terminal panel to the KUSB-3160
module.
4
2
Principles of Operation
Digital I/O Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Interrupts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Operation Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5
Chapter 2
Pins 50 and 100
Figure 1 shows a block diagram of the KUSB-3160 module. Note that
bold entries indicate signals you can access.
Pins 1 to 64
Lines 0 to 63
Pins 49 and 99
Isolated
Common
+5 V
In/Out
Controller and
Digital Filters
Pins 64 to 96
Lines 63 to 95
High-Speed
Isolated Data Path
Microcontroller
64 Digital I/O WIth 100 kΩ Pull-Ups to +5V_I
WIth Back EMF Protection
32 Digital Inputs WIth 100 kΩ Pull-Ups to +5V_I
WIth Back EMF Protection
Isolated Power
500 V Isolation Barrier
Power Control
DC to DC
USB Interface
+5 V D + D - GND
Figure 1: Block Diagram of the KUSB-3160 Module
6
Principles of Operation
This chapter describes the following features of the digital I/O
subsystem:
• Digital I/O lines, described on page 8;
• Resolution, described on page 10;
2
• Interrupts, described on page 13, and
• Operation modes, described on page 14.
2
2
2
2
2
2
2
2
7
Chapter 2
Digital I/O Lines
The KUSB-3160 module supports 64 shared digital I/O lines. These
lines are organized as eight digital banks (banks 0 to 7)), each
containing eight digital I/O lines (lines 0 to 7).
The KUSB-3160 module also supports 32 dedicated digital input
lines. These lines are organized as four banks (banks 8 to 11), each
containing eight digital input lines (lines 0 to 7).
You access the digital inputs through the digital input (DIN)
subsystem and the digital outputs through the digital output (DOUT)
subsystem.
The inputs are pulled up to +5 V through a 100 kΩ resistor. You can
choose to debounce the inputs using the Open Layers Control Panel.
When debounce is selected, a debounce delay of 5 ms occurs before a
change is passed through the digital filter on the module. When
debounce is not selected (the default configuration), a delay of less
than 1 ms occurs. Refer to the KUSB-3160 Getting Started Manual for
more information.
Outputs are open collectors with a 100 kΩ resistor connected to the
internal isolated +5 V. All outputs are diode-protected for back EMF
voltages typically seen when driving relays. The output stage latches
are normally powered by the module. However, you can externally
power the +5 V output so that the digital outputs retain their current
values when the module is powered down.
Note: +5 V output is available only when one of the subsystems is
activated, which, in turn, activates power to the module.
The KUSB-3160 provides enough current to drive only one LED per
output line on the KUSB-STP100 screw terminal panel at a time. An
LED turns on when the output is low.
8
Principles of Operation
You can specify the digital input lines to read in a single-value digital
I/O or continuous operation. You can specify the digital output lines
to write to in a single-value digital I/O operation. Refer to page 14 for
more information on digital I/O operation modes.
2
Note: Continuous digital input operations are supported by digital
input banks 10 and 11 only. Therefore, in continuous mode, the
resolution is always 16 bits.
The number of digital I/O lines that are read or written to depend on
the resolution that is specified, as described in the next section.
2
2
2
2
2
2
2
2
9
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