UM-24847-L
DT9847 Series
User’s Manual
Title Page
Copyright Page
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.
Trademark and Copyright Information
Measurement Computing Corporation, InstaCal, Universal Library, and the Measurement
Computing logo are either trademarks or registered trademarks of Measurement Computing
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information about Measurement Computing trademarks.
Other product and company names mentioned herein are trademarks or trade names of their
respective companies.
© 2019 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.
Radio and Television Interference
This equipment has been tested and found to comply with CISPR EN55022 Class A and
EN61000-6-1 requirements and also with the limits for a Class A digital device, pursuant to
Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against
harmful interference when the equipment is operated in a commercial environment. This
equipment generates, uses, and can radiate radio frequency energy and, if not installed and
used in accordance with the instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is likely to cause harmful
interference, in which case the user will be required to correct the interference at his own
expense.
Changes or modifications to this equipment not expressly approved by Data Translation
could void your authority to operate the equipment under Part 15 of the FCC Rules.
Note: This product was verified to meet FCC requirements under test conditions that
included use of shielded cables and connectors between system components. It is important
that you use shielded cables and connectors to reduce the possibility of causing interference
to radio, television, and other electronic devices.
FCC Page
Canadian Department of Communications Statement
This digital apparatus does not exceed the Class A limits for radio noise emissions from
digital apparatus set out in the Radio Interference Regulations of the Canadian Department of
Communications.
Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites
applicables aux appareils numériques de la class A prescrites dans le Règlement sur le
brouillage radioélectrique édicté par le Ministère des Communications du Canada.
Table of Contents
Table of Contents
About this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Intended Audience. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
How this Manual is Organized . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Conventions Used in this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Related Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Where To Get Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Chapter 1: Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Hardware Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Key Features of the DT9847-1-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Key Features of the DT9847-2-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Key Features of the DT9847-3-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Supported Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Supported Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Getting Started Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Chapter 2: Setting Up and Installing the Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
System Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Applying Power to the Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Attaching Modules to the Computer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Connecting Directly to the USB Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Connecting to an Expansion Hub . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Configuring the DT9847 Series Device Driver. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Chapter 3: Wiring Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Preparing to Wire Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Wiring Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Warm-Up Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Wiring Signals to the Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Connecting Analog Input Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Connecting an Analog Output Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Connecting Digital I/O Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Chapter 4: Verifying the Operation of a Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Select the Device. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Acquire Data from an Analog Output Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Configure the Analog Output Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Configure the Analog Input Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Configure the Recording Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
5
Contents
Configure the Acquisition Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Start the Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Chapter 5: Principles of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Analog Input Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Analog Input Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Input Ranges and Gains. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
IEPE Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Input Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Input Clock Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Configuration Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Analog Input Conversion Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Single-Value Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Single-Values Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Continuous Scan Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Input Triggers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Start Trigger Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Reference Trigger Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Data Format and Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Error Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Analog Output Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Analog Output Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Output Ranges and Gains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Output Resolution. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Output Clocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Output Conversion Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Single-Value Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Waveform Generation Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Continuous Analog Output Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Output Trigger. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Data Format and Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Error Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Digital I/O Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Digital I/O Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Operation Modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Triggering Acquisition on Multiple Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Synchronizing Acquisition on Multiple DT9847 Series Modules . . . . . . . . . . . . . . . . . . . . . 79
Triggering DT9847 and DT9837 Series Modules Using the Sync Bus. . . . . . . . . . . . . . 81
6
Chapter 6: Supported Device Driver Capabilities. . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Data Flow and Operation Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Buffering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Triggered Scan Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Data Encoding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Current and Resistance Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Thermocouple, RTD, and Thermistor Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
IEPE Support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Bridge and Strain Gage Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Start Triggers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Reference Triggers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Clocks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Counter/Timers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Tachometers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Contents
Chapter 7: Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
General Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
If Your Module Needs Factory Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Chapter 8: Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Using the Calibration Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Calibrating the Analog Input Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Warming up the Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Connecting a Precision Voltage Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Using the Auto-Calibration Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Using the Manual Calibration Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Calibrating the Analog Output Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Appendix A: Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Analog Input Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Analog Output Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Digital I/O Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Trigger Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Master Oscillator Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Power, Physical, and Environmental Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Regulatory Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Connector Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
External Power Supply Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
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Contents
Appendix B: Connector Pin Assignments and LED Status Indicators . . . . . . . . . 127
Digital I/O and External Trigger Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
External USB Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
External Power Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
STP15 Screw Terminal Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
LED Status Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Appendix C: Powering OEM Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Powering the DT9847-1-1-OEM Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Powering the DT9847-2-2-OEM or DT9847-3-1-OEM Module . . . . . . . . . . . . . . . . . . . . . . 136
Appendix D: Register-Level Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Writing to the EEPROM Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
8
The first part of this manual describes how to install and set up your DT9847 Series module
and device driver, and verify that your module is working properly.
The second part of this manual describes the features of the DT9847 Series modules, the
capabilities of the DT9847 Series Device Driver, and how to program the DT9847 module
using the DT-Open Layers for .NET Class Library software. Troubleshooting information is
also provided.
Note: For more information on the class library, refer to the DT-Open Layers for .NET Class
Library User’s Manual. If you are using the DataAcq SDK or a software application to program
your device, refer to the documentation for that software for more information.
Intended Audience
This document is intended for engineers, scientists, technicians, or others responsible for
using and/or programming a DT9847 Series module for data acquisition operations in the
Microsoft® Windows Vista, Windows 7, Windows 8, or Windows 10 operating system. It is
assumed that you have some familiarity with data acquisition principles and that you
understand your application.
About this Manual
How this Manual is Organized
This manual is organized as follows:
• Chapter 1, “Overview,” describes the major features of the DT9847 Series module, as well
as the supported software and accessories for the modules.
• Chapter 2, “Setting Up and Installing the Module,” describes how to install a DT9847
Series module, how to apply power to the module, and how to configure the DT9847
Series Device Driver.
• Chapter 3, “Wiring Signals,” describes how to wire signals to a DT9847 Series module.
• Chapter 4, “Verifying the Operation of a Module,” describes how to verify the operation
of a DT9847 Series module with the QuickDAQ application.
• Chapter 5, “Principles of Operation,” describes all of the features of the DT9847 Series
module and how to access them in your application.
• Chapter 6, “Supported Device Driver Capabilities,” lists the data acquisition subsystems
and the associated features accessible using the DT9847 Series Device Driver.
• Chapter 7, “Troubleshooting,” provides information that you can use to resolve problems
with the DT9847 Series module and DT9847 Series Device Driver, should they occur.
• Chapter 8, “Calibration,” describes how to calibrate the analog I/O circuitry of the
DT9847 module.
9
About this Manual
Conventions Used in this Manual
• Appendix A, “Specifications,” lists the specifications of the DT9847 Series module.
• Appendix B, “Connector Pin Assignments and LED Status Indicators,” lists the pin
assignments of the connectors on the DT9847 Series module, the screw terminal
assignments of the STP15 screw terminal panel, and describes the LED status indicators
on the DT9847 Series module.
• Appendix C, “Powering OEM Modules,” describes how to apply power to OEM modules.
• Appendix D, “Register-Level Programming,” describes how to write to the registers of the
DT9847 Series modules to change the default settings that are defined in the Open Layers
Control Panel programmatically.
• 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 DT9847 Series module:
• QuickDAQ User’s Manual (UM-24774). This manual describes how to create a QuickDAQ
application to acquire and analyze data from a DT-Open Layers data acquisition module.
• DT-Open Layers for .NET User’s Manual (UM-22161). For programmers who are
developing their own application programs using Visual C# or Visual Basic .NET, this
manual describes how to use the DT-Open Layers for .NET Class Library to access the
capabilities of Data Translation data acquisition devices.
• DataAcq SDK User’s Manual (UM-18326). For programmers who are developing their own
application programs using the Microsoft C compiler, this manual describes how to use
the DT-Open Layers DataAcq SDK to access the capabilities of Data Translation data
acquisition devices.
• LV-Link Online Help. This help file describes how to use LV-Link with the LabVIEW
graphical programming language to access the capabilities of Data Translation data
acquisition devices.
• Microsoft Windows 7, Windows 8, or Windows 10 documentation.
10
•USB web site (http://www.usb.org)
Where To Get Help
Should you run into problems installing or using a DT9847 Series module, the Technical
Support Department is available to provide technical assistance. Refer to Chapter 7 for more
information. If you are outside the United States or Canada, call your local distributor, whose
number is listed on our web site www.mccdaq.com.
About this Manual
11
About this Manual
12
1
Overview
Hardware Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Supported Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Supported Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Getting Started Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
13
Chapter 1
Hardware Features
DT9847 Series modules are high-accuracy, dynamic signal acquisition modules for the USB
(Ver. 2.0 or Ver. 1.1) bus. These modules are ideal for acoustic measurements due to their AC
coupling and frequency characteristics. Figure 1 shows the DT9847-3-1 module.
Figure 1: DT9847-3-1 Module
Table 1 lists the major differences between the modules.
Table 1: Major Differences Between the DT9847 Series Modules
Feature DT9847-1-1 DT9847-2-2 DT9847-3-1
Number of Analog Input Channels 1 2 3
Number of Analog Output Channels 1 2 1
Power USB Power
a. Using USB-Y cable.
b. Using a 5 V to 24 V external power supply at 5 W.
a
External Power
b
External Power
b
14
Key Features of the DT9847-1-1
The key features of the DT9847-1-1 module are as follows:
• Simultaneous analog input and waveform analog output operations
• Operates on internal USB power using a USB-Y cable
• Analog input subsystem:
One 24-bit A/D converter
Throughput rate from 1 kSamples/s to 216 kSamples/s
Input range of ±10 V with software-selectable gains of 1 and 10 for an effective input
range of ±10 V and ±1 V
Support for IEPE (Integrated Electronic Piezoelectric) inputs, including use of a 4 mA
current source with 18 V compliance voltage for AC or DC coupling
Supports a start trigger for acquiring pre-trigger samples and a reference trigger for
acquiring post-trigger samples. You can specify the number of post-trigger samples to
acquire before stopping the operation.
For the start trigger, supports a software-programmable trigger source (software,
external digital trigger, or a positive- or negative-going analog threshold trigger. For
the threshold trigger, you can program the threshold value from –10 V to +10 V.
Overview
For the reference trigger, supports an external digital trigger or a positive- or
negative-going analog threshold trigger. You can program the threshold value from
–10 V to +10 V.
• Analog output subsystem:
One 32-bit D/A converter
Single value, waveform, and continuous streaming output
Programmable output rate from 30 kSamples/s to 216 kSamples/s
Output range of ±3 V or ±10 V, software-programmable
Software-programmable trigger source (software trigger or external digital trigger) to
start the analog output operation
• Internal clock source (shared between the analog input and analog output subsystems)
• Four digital input lines and 4 digital output lines
• Sync Bus (RJ45) connector for synchronizing acquisition on up to four DT9847 Series
modules
15
Chapter 1
Key Features of the DT9847-2-2
The key hardware features of the DT9847-2-2 module are as follows:
• Simultaneous analog input and analog output operations (continuous or waveform
mode)
• Operates on external USB power
• Analog input subsystem:
Two, simultaneous 24-bit A/D converters
Throughput rate from 1 kSamples/s to 216 kSamples/s for simultaneous,
high-resolution measurements
Input range of ±10 V with software-selectable gains of 1 and 10 for an effective input
range of ±10 V and ±1 V
Support for IEPE (Integrated Electronic Piezoelectric) inputs, including use of a 4 mA
current source with 18 V compliance voltage for AC or DC coupling
Supports a start trigger for acquiring pre-trigger samples and a reference trigger for
acquiring post-trigger samples. You can specify the number of post-trigger samples to
acquire before stopping the operation.
For the start trigger, supports a software-programmable trigger source (software,
external digital trigger, or a positive- or negative-going analog threshold trigger on
any of the analog input channels). For the threshold trigger, you can program the
threshold value from –10 V to +10 V.
For the reference trigger, supports an external digital trigger or a positive- or
negative-going analog threshold trigger on any of the analog input channels. You can
program the threshold value from –10 V to +10 V.
• Analog output subsystem:
Two 32-bit D/A converters
Single value, waveform, and continuous streaming output
Programmable output rate from 30 kSamples/s to 216 kSamples/s
Output range of ±3 V or ±10 V, software programmable
Software-programmable trigger source (software trigger or external digital trigger) to
start the analog output operation
• Internal clock source (shared between the analog input and analog output subsystems)
• Sync Bus (RJ45) connector for synchronizing acquisition on up to four DT9847 Series
modules
• Requires use of an external +5 VDC to +24 VDC power supply
16
Key Features of the DT9847-3-1
The key hardware features of the DT9847-3-1 module are as follows:
• Simultaneous analog input and analog output operations (continuous or waveform
mode)
• Operates on external USB power
• Analog input subsystem:
Three, simultaneous 24-bit A/D converters
Throughput rate from 1 kSamples/s to 216 kSamples/s for simultaneous,
high-resolution measurements
Input range of ±10 V with software-selectable gains of 1 and 10 for an effective input
range of ±10 V and ±1 V
Support for IEPE (Integrated Electronic Piezoelectric) inputs, including use of a 4 mA
current source with 18 V compliance voltage for AC or DC coupling
Supports a start trigger for acquiring pre-trigger samples and a reference trigger for
acquiring post-trigger samples. You can specify the number of post-trigger samples to
acquire before stopping the operation.
Overview
For the start trigger, supports a software-programmable trigger source (software,
external digital trigger, or a positive- or negative-going analog threshold trigger on
any of the analog input channels). For the threshold trigger, you can program the
threshold value from –10 V to +10 V.
For the reference trigger, supports an external digital trigger or a positive- or
negative-going analog threshold trigger on any of the analog input channels. You can
program the threshold value from –10 V to +10 V.
• Analog output subsystem:
One 32-bit D/A converter
Single value, waveform, and continuous streaming output
Programmable output rate from 30 kSamples/s to 216 kSamples/s
Output range of ±3 V or ±10 V, software programmable
Software-programmable trigger source (software trigger or external digital trigger) to
start the analog output operation
• Internal clock source (shared between the analog input and analog output subsystems)
• Sync Bus (RJ45) connector for synchronizing acquisition on up to four DT9847 Series
modules
• Requires use of an external +5 VDC to +24 VDC power supply
17
Chapter 1
Supported Software
The DT Omni installer includes the following software for use with the DT9847 Series
modules:
• DT9847 Series Device Driver – The DT9847 Series Device Driver allows you to use a
DT9847 Series module with any of the supported software packages or utilities.
• DT9847 Series Calibration Utility – This utility, described in Chapter 8 starting on page
105, allows you to calibrate the analog input and analog output circuitry of a DT9847
Series module.
• QuickDAQ Base Version – The base version of QuickDAQ is free-of-charge and allows
you to acquire and analyze data from all Data Translation USB and Ethernet devices,
except the DT9841 Series, DT9817, DT9835, and DT9853/54. Using the base version of
QuickDAQ, you can perform the following functions:
Discover and select your devices.
Configure all input channel settings for the attached sensors.
Load/save multiple hardware configurations.
Generate output stimuli (fixed waveforms, swept sine waves, or noise signals).
On each supported data acquisition device, acquire data from all channels supported
in the input channel list.
Choose to acquire data continuously or for a specified duration.
Choose software or triggered acquisition.
Log acquired data to disk in an .hpf file.
Display acquired data during acquisition in either a digital display using the Channel
Display window or as a waveform in the Channel Plot window.
Choose linear or logarithmic scaling for the horizontal and vertical axes.
View statistics about the acquired data, including the minimum, maximum, and mean
values and the standard deviation in the Statistics window.
Export time data to a .csv or .txt file; you can open the recorded data in Microsoft
Excel® for further analysis.
Read a previously recorded .hpf data file.
Customize many aspects of the acquisition, display, and recording functions to suit
your needs, including the acquisition duration, sampling frequency, trigger settings,
filter type, and temperature units to use.
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• QuickDAQ FFT Analysis Option – When enabled with a purchased license key, the
QuickDAQ FFT Analysis option includes all the features of the QuickDAQ Base version
plus basic FFT analysis features, including the following:
The ability to switch between the Data Logger time-based interface and the FFT
Analyzer block/average-based interface.
Supports software, freerun, or triggered acquisition with accept and reject controls for
impact testing applications.
Allows you to perform single-channel FFT (Fast Fourier Transform) operations,
including AutoSpectrum, Spectrum, and Power Spectral Density, on the acquired
analog input data. You can configure a number of parameters for the FFT, including
the FFT size, windowing type, averaging type, integration type, and so on.
Allows you to display frequency-domain data as amplitude or phase.
Supports dB or linear scaling with RMS (root mean squared), peak, and peak-to-peak
scaling options
Supports linear or exponential averaging with RMS, vector, and peak hold averaging
options.
Supports windowed time channels.
Overview
Supports the following response window types: Hanning, Hamming, Bartlett,
Blackman, Blackman Harris, and Flat top.
Supports the ability to lock the waveform output to the analysis frame time.
Allows you to configure and view dynamic performance statistics, including the input
below full-scale (IBF), total harmonic distortion (THD), spurious free dynamic range
(SFDR), signal-to-noise and distortion ratio (SINAD), signal-to-noise ratio (SNR), and
the effective number of bits (ENOB), for selected time-domain channels in the Statistics
window.
Supports digital IIR (infinite impulse response) filters.
• QuickDAQ Advanced FFT Analysis Option – When enabled with a purchased software
license, the QuickDAQ Advanced FFT Analysis option includes all the features of the
QuickDAQ Base version with the FFT Analysis option plus advanced FFT analysis
features, including the following:
Allows you to designate a channel as a Reference or Response channel.
Allows you to perform two-channel FFT analysis functions, including Frequency
Response Functions (Inertance, Mobility, Compliance, Apparent Mass, Impedance,
Dynamic Stiffness, or custom FRF) with H1, H2, or H3 estimator types,
Cross-Spectrum, Cross Power Spectral Density, Coherence, and Coherent Output
Power.
Supports the Exponential response window type.
Supports the following reference window types: Hanning, Hamming, Bartlett,
Blackman, Blackman Harris, FlatTop, Exponential, Force, and Cosine Taper windows.
Supports real, imaginary, and Nyquist display functions.
Allows you to save data in the .uff file format.
19
Chapter 1
• Quick DataAcq application –The Quick DataAcq application provides a quick way to get
up and running using a DT9847 Series module. Using this application, you can verify key
features of the modules, display data on the screen, and save data to disk. (Note that this
application does not support configuring AC/DC coupling or the excitation current
source for IEPE inputs.)
• DT-Open Layers for .NET Class Library – Use this class library if you want to use Visual
C# or Visual Basic for .NET to develop your own application software for a DT9847 Series
module using Visual Studio 2003-2012; the class library complies with the DT-Open
Layers standard.
• DataAcq SDK – Use the Data Acq SDK if you want to use Visual Studio 6.0 and Microsoft
C or C++ to develop your own application software for a DT9847 Series module using
Windows Vista, Windows 7, or Windows 8; the DataAcq SDK complies with the DT-Open
Layers standard.
• DAQ Adaptor for MATLAB – A link to the DAQ Adaptor for MATLAB is included from
the DT Omni installer. Data Translation’s DAQ Adaptor provides an interface between
the MATLAB Data Acquisition (DAQ) subsystem from The MathWorks and Data
Translation’s DT-Open Layers architecture.
• LV-Link – A link to LV-Link is included from the DT Omni installer. Use LV-Link if you
want to use the LabVIEW graphical programming language to access the capabilities of
the DT9847 Series module.
Refer to the web site www.mccdaq.com for information about selecting the right software
package for your needs.
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Supported Accessories
The following optional accessories are available for the DT9847 Series:
• STP15 screw terminal panel – A screw terminal panel that accepts digital input signals
and an external trigger input signal and provides connections for digital output signals.
The 15-pin, 2-meter, EP337 cable is included with the STP15 screw terminal panel. The
EP337 cable allows you to attach the STP15 screw terminal panel to the Digital I/O and
External Trigger connector on a DT9847 Series module.
Figure 3 shows the STP15 and EP337 cable.
Overview
Figure 2: STP15 Screw Terminal Panel and EP337 Cable
21
Chapter 1
• EP386 panel – The EP388 panel, shown in Figure 3, contains four RJ45 connectors that are
wired in parallel, making it useful when attaching up to four DT9847 Series modules
together using the Sync Bus connector. Refer to page 79 for more information on using
this panel.
Figure 3: EP386 Panel
• BNC DIN Rail Kit – The BNC DIN Rail Kit, shown in Figure 4, allows you to mount USB
modules that are packaged in metal boxes in a DIN rail. The kit includes mounting clips,
screws, and instructions. The rail is not included.
22
Figure 4: BNC DIN Rail Kit
Getting Started Procedure
Set Up and Install the Module
(see Chapter 2 starting on page 27)
Wire Signals
(see Chapter 3 starting on page 37)
Verify the Operation of the Module
(see Chapter 4 starting on page 47)
The flow diagram shown in Figure 5 illustrates the steps needed to get started using a DT9847
Series module. This diagram is repeated in each Getting Started chapter; the shaded area in
the diagram shows you where you are in the getting started procedure.
Figure 5: Getting Started Flow Diagram
Overview
23
Chapter 1
24
Part 1: Getting Started
2
Setting Up and Installing the Module
Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
System Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Applying Power to the Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Attaching Modules to the Computer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Configuring the DT9847 Series Device Driver. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
27
Chapter 2
Set Up and Install the Module
(this chapter)
Wire Signals
(see Chapter 3 starting on page 37)
Verify the Operation of the Module
(see Chapter 4 starting on page 47)
28
Unpacking
Open the shipping box and verify that the following items are present:
• DT9847-1-1, DT9847-1-1-OEM, DT9847-2-2, DT9847-2-2-OEM, DT9847-3-1, or
DT9847-3-1-OEM module
• If you ordered a DT9847-1-1 or DT98471-1-OEM module, the EP399 USB-Y cable is
included. Optionally, you can use a +5 V external power supply (not included) to power
the DT9847-1-1-OEM module.
• If you ordered a DT9847-2-2 or DT9847-3-1 module, the EP365 USB cable and EP394 +5 V
external power supply are included.
• If you ordered a DT9847-2-2-OEM or DT9847-3-1-OEM module, the EP365 USB cable is
included. To power the module, you must use a 5 V to 24 V external power supply (not
included).
Setting Up and Installing the Module
CAUTION:
Ensure that the maximum voltage of the external supply is +5 V
±0.30 V. @ 600 mA. Higher voltages will destroy the DT9847-1-1-OEM
module.
If an item is missing or damaged, contact Data Translation. If you are in the United States, call
the Customer Service Department at (508) 956-5100. An application engineer will guide you
through the appropriate steps for replacing missing or damaged items. If you are located
outside the United States, call your local distributor (see www.mccdaq.com for more
information).
Note: The DT9847 Series modules are factory-calibrated. If you decide that you want to
recalibrate the analog input or analog output circuitry, refer to the instructions in Chapter 8.
29
Chapter 2
System Requirements
For reliable operation, ensure that your computer meets the following system requirements:
• Processor: Pentium 4/M or equivalent
•RAM: 1 GB
• Screen Resolution: 1024 x 768 pixels
• Operating System: Windows 10, Windows 8, Windows 7, Windows Vista (32- and 64-bit)
• Disk Space: 4 GB
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