Measurement Computing USB-3103 User manual

USB-3103
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User's Guide
FA .  MEASUREMENT
  COMPUTING™

USB-3103
USB-based Analog Output
User Guide
Document Revision 3A, March, 2009
© Copyright 2009, Measurement Computing Corporation

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HM USB-3103.doc
Trademark and Copyright Information
Measurement Computing Corporation, InstaCal, Universal Library, and the Measurement Computing logo are
either trademarks or registered trademarks of MeasurementComputing Corporation. Refer to the Copyrights &
Trademarks section on mccdaq.com/legal for more information about Measurement Computing trademarks.
Other product and company namesmentioned herein are trademarks or trade names of their respective
companies.
©2009 MeasurementComputingCorporation. All rights reserved. No part of this publicationmay be
reproduced, stored in a retrieval system, or transmitted, in any form by any means, electronic,mechanical, by
photocopying, recording, or otherwise without the prior written permission of Measurement Computing
Corporation.
Notice
Measurement Computing Corporation does not authorize any Measurement Computing Corporation product for
use in life support systems and/or devices without prior written consent from Measurement Computing
Corporation. Life support devices/systems are devices or systems that, a) are intended for surgical implantation
into the body, or b) support or sustain life and whose failure to perform can be reasonably expected to result in
injury. Measurement Computing Corporation products are not designed with the components required, and are
not subject to the testing required to ensure a level of reliability suitable for the treatment and diagnosis of
people.

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Trademark and Copyright Information
TracerDAQ, Universal Library, Measurement Computing Corporation, and the Measurement Computing logo are either
trademarks or registered trademarks of Measurement Computing Corporation.
Windows, Microsoft, and Visual Studio are either trademarks or registered trademarks of Microsoft Corporation
LabVIEW is a trademark of National Instruments.
CompactFlash is a registered trademark of SanDisk Corporation.
XBee and XBee-PRO are trademarks of MaxStream, Inc.
All other trademarks are the property of their respective owners.
Information furnished by Measurement Computing Corporation is believed to be accurate and reliable. However, no
responsibility is assumed by Measurement Computing Corporation neither for its use; nor for any infringements of patents or
other rights of third parties, which may result from its use. No license is granted by implication or otherwise under any patent or
copyrights of Measurement Computing Corporation.
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form by
any means, electronic, mechanical, by photocopying, recording, or otherwise without the prior written permission of
Measurement Computing Corporation.
Notice
Measurement Computing Corporation does not authorize any Measurement Computing Corporation product for use
in life support systems and/or devices without prior written consent from Measurement Computing Corporation.
Life support devices/systems are devices or systems which, a) are intended for surgical implantation into the body,
or b) support or sustain life and whose failure to perform can be reasonably expected to result in injury.
Measurement Computing Corporation products are not designed with the components required, and are not subject
to the testing required to ensure a level of reliability suitable for the treatment and diagnosis of people.

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Table of Contents
Preface
About this User's Guide.......................................................................................................................7
What you will learn from this user's guide.........................................................................................................7
Conventions in this user's guide........................................................................................................................................ 7
Where to find more information.........................................................................................................................7
Chapter 1
Introducing the USB-3103....................................................................................................................8
Overview: USB-3103 features ...........................................................................................................................8
USB-3103 block diagram...................................................................................................................................9
Software features................................................................................................................................................9
Chapter 2
Installing the USB-3103......................................................................................................................10
What comes with your USB-3103 shipment? ..................................................................................................10
Hardware .........................................................................................................................................................................10
Additional documentation................................................................................................................................................10
Unpacking the USB-3103.................................................................................................................................10
Installing the software ......................................................................................................................................11
Installing the hardware .....................................................................................................................................11
Connecting the USB-3103 to your system.......................................................................................................................11
Calibrating the USB-3103................................................................................................................................12
Chapter 3
Functional Details...............................................................................................................................13
External components ........................................................................................................................................13
USB connector.................................................................................................................................................................13
Status LED.......................................................................................................................................................................13
Power LED ......................................................................................................................................................................13
Screw terminal banks.......................................................................................................................................................14
Analog voltage output terminals (VOUT0 to VOUT7) ...................................................................................................15
Digital I/O terminals (DIO0 to DIO7) .............................................................................................................................15
Digital I/O control terminal (DIO CTL) for pull-up/down configuration........................................................................16
Ground terminals (AGND, DGND).................................................................................................................................16
Synchronous DAC load terminal (SYNCLD)..................................................................................................................16
Counter terminal (CTR)...................................................................................................................................................16
Power terminal (+5V)......................................................................................................................................................16
Synchronizing multiple units............................................................................................................................17
Chapter 4
Specifications......................................................................................................................................18
Analog voltage output ......................................................................................................................................18
Analog output calibration.................................................................................................................................19
Digital input/output ..........................................................................................................................................19
Synchronous DAC Load...................................................................................................................................20
Counter.............................................................................................................................................................20
Memory ............................................................................................................................................................21
Microcontroller.................................................................................................................................................21
Power................................................................................................................................................................21
USB specifications ...........................................................................................................................................21
Environmental ..................................................................................................................................................22

USB-3103 User's Guide
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Mechanical .......................................................................................................................................................22
Main connector and pin out..............................................................................................................................22
Declaration of Conformity..................................................................................................................23

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Preface
About this User’s Guide
What you will learn from this user's guide
This user's guide describes the Measurement Computing CIO-DDA06/Jr/16 data acquisition board
and lists hardware specifications.
Conventions in this user's guide
For more information
Text presented in a box signifies additional information related to the subject matter.
Caution! Shaded caution statements present information to help you avoid injuring yourself and others,
damaging your hardware, or losing your data.
bold text Bold text is used for the names of objects on a screen, such as buttons, text boxes, and check boxes.
italic text Italic text is used for the names of manuals and help topic titles, and to emphasize a word or phrase.
Where to find more information
Additional information about CIO-DDA06/Jr/16 hardware is available on our website at
www.mccdaq.com.You can also contact Measurement Computing Corporation with specific questions.
Knowledgebase: kb.mccdaq.com
Tech support form: www.mccdaq.com/support/support_form.aspx
Email: [e-mail]
Phone: [phone] and follow the instructions for reaching Tech Support
For international customers, contact your local distributor. Refer to the International Distributors section on our
website at www.mccdaq.com/International.

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Chapter 1
Introducing the USB-3103
Overview: USB-3103 features
This user's guide contains all of the information you need to connect the USB-3103 to your computer and to the
signals you want to control. The USB-3103 is part of the Measurement Computing brand of USB-based data
acquisition products.
The USB-3103 is a USB 2.0 full-speed device that is supported under popular Microsoft®Windows®operating
systems. The USB-3103 is fully compatible with both USB 1.1 and USB 2.0 ports.
The USB-3103 provides eight channels of analog voltage output, eight digital I/O connections, and one 32-bit
event counter.
The USB-3103 has two quad (4-channel) 16-bit digital-to-analog converters (DAC). You set the voltage output
range of each DAC channel independently with software for either bipolar or unipolar. The bipolar range is
±10 V, and the unipolar range is 0 to 10 V. The analog outputs may be updated individually or simultaneously.
A bidirectional synchronization connection allows you to simultaneously update the DAC outputs on multiple
devices.
The USB-3103 features eight bidirectional digital I/O connections. You can configure the DIO lines as input or
output in one 8-bit port. All digital pins are floating by default. A screw terminal connection is provided for
pull-up (+5 V) or pull-down (0 volts) configuration.
The 32-bit counter can count TTL pulses.
The USB-3103 is powered by the +5 volt USB supply from your computer. No external power is required. All
I/O connections are made to the screw terminals located along each side of the USB-3103.
Figure 1. USB-3103

USB-3103 User's Guide Introducing the USB-3103
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USB-3103 block diagram
USB-3103 functions are illustrated in the block diagram shown here.
Screw terminal I/O connector
USB
Microcontroller
Screw terminal I/O connector
8
Event Counter
1 channel
(32-bit) 1
DIO
8 channels
8
USB
Full-speed
USB 2.0
Compliant
Interface
SPI D/A 8
4
D/A 4
SYNCLD 1
4-channel
Quad Analog Voltage
Output
8 channels (16-bit)
Figure 2. USB-3103 block diagram
Software features
For information on the features of InstaCal and the other software included with your USB-3103, refer to the
www.mccdaq.com/PDFs/manuals/DAQ-Software-Quick-Start.pdf.
Check www.mccdaq.com/download.htm for the latest software version.

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Chapter 2
Installing the USB-3103
What comes with your USB-3103 shipment?
The following items are shipped with the USB-3103.
Hardware
USB-3103 device
USB cable (2 meter length)
Additional documentation
In addition to this hardware user's guide, you should also receive the Quick Start Guide (available in PDF at
www.mccdaq.com/PDFs/manuals/DAQ-Software-Quick-Start.pdf). This booklet supplies a brief description
of the software you received with your USB-3103 and information regarding installation of that software.
Please read this booklet completely before installing any software or hardware.
Unpacking the USB-3103
As with any electronic device, you should take care while handling to avoid damage from static
electricity. Before removing the USB-3103 from its packaging, ground yourself using a wrist strap or by simply
touching the computer chassis or other grounded object to eliminate any stored static charge.