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Table of Contents
Summary of Contents for Measurement Computing USB-3114
- Page 2 USB-3114 USB-based Analog Output User Guide Document Revision 4A, January, 2011 © Copyright 2011, Measurement Computing Corporation...
- Page 3 Other product and company names mentioned herein are trademarks or trade names of their respective companies. © 2011 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.
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Page 4: Table Of Contents
Overview: USB-3114 features ........................... 7 USB-3114 block diagram ........................... 8 Software features ..............................8 Chapter 2 Installing the USB-3114 ........................9 What comes with your USB-3114 shipment? ....................9 Hardware ..................................9 Additional documentation ..............................10 Unpacking the USB-3114..........................10 Installing the software ............................10 Installing the hardware ............................. - Page 5 USB-3114 User's Guide USB specifications ............................22 Environmental ..............................22 Mechanical ............................... 22 Main connector and pin out ..........................23 Declaration of Conformity ........................24...
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Page 6: Preface
Preface About this User's Guide What you will learn from this user's guide This user's guide describes the Measurement Computing USB-3114 data acquisition device and lists the specifications. Conventions in this user's guide For more information on … Text presented in a box signifies additional information and helpful hints related to the subject matter you are reading. -
Page 7: Introducing The Usb-3114
DAC outputs on multiple devices. The USB-3114 is powered by a 5 volt, 2 amp AC power adapter that is shipped with the board. All I/O connections are made to the screw terminals located along each side of the USB-3114. -
Page 8: Usb-3114 Block Diagram
USB-3114 functions are illustrated in the block diagram shown here. Figure 2. USB-3114 block diagram Software features For information on the features of InstaCal and the other software included with your USB-3114, refer to the Quick Start Guide that shipped with your device. -
Page 9: Installing The Usb-3114
Chapter 2 Installing the USB-3114 What comes with your USB-3114 shipment? The following items are shipped with the USB-3114. Hardware USB-3114 device USB cable (2 meter length) External power supply and cord – 10 watt AC power adapter. MCC part number PS-5V2AEPS. -
Page 10: Additional Documentation
USB-3114, connect the USB adapter cord to the power connector on the USB-3114 device, and plug the AC adapter into a power outlet. The power LED on the device lights up when the USB-3114 is receiving power from the AC power adapter. -
Page 11: Connecting The Usb-3114 To Your System
Connecting the USB-3114 to your system To connect the USB-3114 to your system, turn your computer on, and connect the USB cable to a USB port on your computer or to an external USB hub that is connected to your computer. The USB cable provides power and communication to the USB-3114. -
Page 12: Chapter 3 Functional Details
USB LED The USB LED indicates the communication status of the USB-3114. It uses up to 10 mA of current and cannot be disabled. The table below defines the function of the USB LED. LED Illumination... -
Page 13: Power Led
Screw terminal banks The USB-3114 has two rows of screw terminals—one row on the top edge of the housing, and one row on the bottom edge. Each row has 28 connections. Use 16 AWG to 30 AWG wire gauge when making screw terminal connections. -
Page 14: Analog Voltage Output Terminals (Vout0 To Vout15)
USB-3114 User's Guide Functional Details Figure 5. USB-3114 signal pin out Analog voltage output terminals (VOUT0 to VOUT15) The screw terminal pins labeled are voltage output terminals (see Figure 5). The voltage VOUT0 VOUT15 output range for each channel is software-programmable for either bipolar or unipolar. The bipolar range is ±10 V, and the unipolar range is 0 to 10 V. -
Page 15: Digital I/O Control Terminal (Dio Ctl) For Pull-Up/Down Configuration
Configure as an output (master mode) to send the internal D/A LOAD signal to the SYNCLD pin. You can use the SYNCLD pin to synchronize with a second USB-3114 and simultaneously update the DAC outputs on each device. Refer to Synchronizing multiple units section on page 16. -
Page 16: Synchronizing Multiple Units
DAC outputs of both devices. Do the following. 1. Connect the SYNCLD pin of the master USB-3114 to the SYNCLD pin of the slave USB-3114. 2. Configure the SYNCLD pin on the slave device for input to receive the D/A LOAD signal from the master device. -
Page 17: Mechanical Drawings
USB-3114 User's Guide Functional Details Mechanical drawings Figure 9. Circuit board (top) and housing dimensions... -
Page 18: Chapter 4 Specifications
100 Hz/#ch max., system dependent Note 1: The USB-3114 output voltage level defaults to 0V whenever the output voltage range is reconfigured. The USB-3114 output voltage level will also default to 0V: 1) Whenever the host PC is reset, shut down or suspended... -
Page 19: Analog Output Calibration
(in Calibrated mode only) and the DAC8554 digital to analog converter non-linearities. The USB-3114 voltage outputs should not be kept in a short-circuit condition for longer than the Note 4: specified limit of 100 ms. For those applications that may potentially exceed the 40 mA maximum current limit or the 100 ms short-circuit condition, external current limiting must be used to prevent potential damage to the USB-3114. -
Page 20: Digital Input/Output
USB-3114 User's Guide Specifications Digital input/output Table 6. Digital I/O specifications Digital logic type CMOS Number of I/O Configuration Independently configured for input or output Pull-up/pull-down configuration User configurable (Note 5) All pins floating (default) Digital I/O input loading TTL (default) -
Page 21: Counter
USB-3114 User's Guide Specifications Counter Table 8. CTR I/O specifications Parameter Conditions Specification Pin name Number of channels Resolution 32-bits Counter type Event counter Input type TTL, rising edge triggered Counter/timer read/writes rates Counter read System dependent, 33 to 1000 reads per second. -
Page 22: Usb Specifications
USB-3114 User's Guide Specifications This is the total quiescent current requirement for the USB-3114 which includes up to 10 mA for Note 8: the status LED. This does not include any potential loading of the digital I/O bits, +5V user terminal or the VOUTx outputs. -
Page 23: Main Connector And Pin Out
USB-3114 User's Guide Specifications Main connector and pin out Table 15. Main connector specifications Connector type Screw terminal Wire gauge range 16 AWG to 30 AWG Signal Name Signal Name VOUT0 VOUT1 VOUT2 VOUT3 AGND AGND VOUT4 VOUT5 VOUT6 VOUT7... -
Page 24: Declaration Of Conformity
Norton, MA 02766 Category: Electrical equipment for measurement, control and laboratory use. Measurement Computing Corporation declares under sole responsibility that the product USB-3114 to which this declaration relates is in conformity with the relevant provisions of the following standards or... - Page 25 Measurement Computing Corporation NI Hungary Kft 10 Commerce Way H-4031 Debrecen, Hátar út 1/A, Hungary Norton, Massachusetts 02766 Phone: +36 (52) 515400 (508) 946-5100 Fax: +36 (52) 515414 Fax: (508) 946-9500 http://hungary.ni.com/debrecen E-mail: info@mccdaq.com www.mccdaq.com...
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