Contents

About This Manual

Conventions ...................................................................................................................

xiii

Related Documentation..................................................................................................

xiv

NI-DAQmx for Windows................................................................................

xiv

LabVIEW ........................................................................................................

xiv

LabWindows™/CVI™....................................................................................

xv

Measurement Studio........................................................................................

xv

ANSI C without NI Application Software ......................................................

xv

.NET Languages without NI Application Software ........................................

xvi

Device Documentation and Specifications......................................................

xvi

Training Courses .............................................................................................

xvi

Technical Support on the Web ........................................................................

xvi

Chapter 1

Getting Started

Installing NI-DAQmx ....................................................................................................

1-2

Installing Other Software...............................................................................................

1-2

Installing the Hardware..................................................................................................

1-3

Device Pinouts ...............................................................................................................

1-3

Device Specifications ....................................................................................................

1-3

Device Accessories ........................................................................................................

1-3

Chapter 2

DAQ System Overview

DAQ Hardware ..............................................................................................................

2-1

DAQ-STC2......................................................................................................

2-2

Calibration Circuitry........................................................................................

2-2

Signal Conditioning .......................................................................................................

2-3

Sensors and Transducers .................................................................................

2-3

Programming Devices in Software ................................................................................

2-4

Chapter 3

Connector Information

I/O Connector Signal Descriptions ................................................................................

3-1

+5 V Power

....................................................................................................................

3-2

+5

V Power as an Output ................................................................................

3-2

+5

V Power as an Input ...................................................................................

3-3

© National Instruments Corporation

v

NI USB-621x User Manual