USER GUIDE AND SPECIFICATIONS
NI USB-9472
8-Channel, 24 V Logic, Sourcing Digital Output Device
This user guide describes how to use the National Instruments
NI USB-9472 and lists the device specifications. In this user guide, the
NI USB-9472 with screw terminal and the NI USB-9472 with D-SUB are
referred to inclusively as the NI USB-9472.
Introduction
The NI USB-9472 data acquisition device provides a USB interface for
eight channels of digital outputs with integrated signal conditioning. The
NI USB-9472 consists of two components: an NI 9472 module and an
NI USB-9162 carrier, as shown in Figure 1.
NI 9472
NI USB-9162
Hi-SP
N
I U
eed USB Carrier
SB-9162
Figure 1. NI USB-9472 Components
N
I U
S
B-9162
NI USB-9472
Hi-Speed USB Carrier
Dimensions
140.23 mm
(5.521 in.)
137.82 mm
(5.426 in.)
Figures 2 and 3 show the NI USB-9472 device dimensions.
Hi-Speed USB Carrier
NI USB-9162
120.68 mm
(4.751 in.)
118.26 mm
(4.656 in.)
125.76 mm
(4.951 in.)
123.38 mm
120.68 mm
(4.857 in.)
(4.751 in.)
118.26 mm
88.12 mm
(3.469 in.)
25.34 mm
25.34
(0.998 in.)
(0.998)
Figure 2. NI USB-9472 (Screw Terminal) Device in Millimeters (Inches)
Hi-Speed USB Carrier
NI USB-9162
(4.656 in.)
88.12 mm
(3.469 in.)
25.34 mm
(0.998 in.)
Figure 3. NI USB-9472 (D-SUB) Device in Millimeters (Inches)
NI USB-9472 User Guide and Specifications 2 ni.com
Safety Guidelines
Operate the NI USB-9472 only as described in these operating instructions.
Note Although the NI 9472 module may have more stringent certification standards than
the NI USB-9472, when used with the NI USB-9162 carrier, the combined system may be
limited. Refer to the Specifications section for more details.
Hot Surface This icon denotes that the component may be hot. Touching this component
may result in bodily injury.
Caution Do not disconnect I/O-side wires or connectors unless power has been switched
off or the area is known to be nonhazardous.
Caution Do not remove modules unless power has been switched off or the area is known
to be nonhazardous.
Caution The NI USB-9472 is not certified for use in hazardous locations.
Safety Guidelines for Hazardous Voltages
If hazardous voltages are connected to the module, take the following
precautions. A hazardous voltage is a voltage greater than 42.4 V
60 VDC to earth ground.
or
pk
Caution Ensure that hazardous voltage wiring is performed only by qualified personnel
adhering to local electrical standards.
Caution Do not mix hazardous voltage circuits and human-accessible circuits on the same
module.
Caution Make sure that devices and circuits connected to the module are properly
insulated from human contact.
Caution When module terminals are live with hazardous voltages, make sure that the
terminals are not accessible by using the high voltage screw terminal backshell. Refer to
the Connecting Devices to the NI USB-9472 section for more information.
© National Instruments Corporation 3 NI USB-9472 User Guide and Specifications
Related Documentation
Each application software package and driver includes information about
writing applications for taking measurements and controlling measurement
devices. The following references to documents assume you have
NI-DAQmx 8.7 or later, and where applicable, version 7.1 or later of the
NI application software.
NI-DAQmx for Windows
The DAQ Getting Started Guide describes how to install your NI-DAQmx
for Windows software, your NI-DAQmx-supported DAQ device, and how
to confirm that your device is operating properly. Select Start»All
Programs»National Instruments»NI-DAQ»DAQ Getting Started
Guide.
The NI-DAQ Readme lists which devices are supported by this version of
NI-DAQ. Select Start»All Programs»National Instruments»NI-DAQ»
NI-DAQ Readme.
The NI-DAQmx Help contains general information about measurement
concepts, key NI-DAQmx concepts, and common applications that are
applicable to all programming environments. Select Start»All
Programs»National Instruments»NI-DAQ»NI-DAQmx Help.
LabVIEW
If you are a new user, use the Getting Started with LabVIEW manual to
familiarize yourself with the LabVIEW graphical programming
environment and the basic LabVIEW features you use to build data
acquisition and instrument control applications. Open the Getting Started
with LabVIEW manual by selecting Start»All Programs»National
Instruments»LabVIEW»LabVIEW Manuals or by navigating to the
labview\manuals directory and opening LV_Getting_Started.pdf.
Use the LabVIEW Help, available by selecting Help»Search the
LabVIEW Help in LabVIEW, to access information about LabVIEW
programming concepts, step-by-step instructions for using LabVIEW, and
reference information about LabVIEW VIs, functions, palettes, menus, and
tools. Refer to the following locations on the Contents tab of the LabVIEW
Help for information about NI-DAQmx:
• Getting Started»Getting Started with DAQ—Includes overview
information and a tutorial to learn how to take an NI-DAQmx
measurement in LabVIEW using the DAQ Assistant.
• VI and Function Reference»Measurement I/O VIs and
Functions—Describes the LabVIEW NI-DAQmx VIs and properties.
NI USB-9472 User Guide and Specifications 4 ni.com
• Taking Measurements—Contains the conceptual and how-to
LabWindows/CVI
The Data Acquisition book of the LabWindows/CVI Help contains
measurement concepts for NI-DAQmx. This book also contains Taking an
NI-DAQmx Measurement in LabWindows/CVI, which includes
step-by-step instructions about creating a measurement task using the DAQ
Assistant. In LabWindows
Using LabWindows/CVI»Data Acquisition.
The NI-DAQmx Library book of the LabWindows/CVI Help contains API
overviews and function reference for NI-DAQmx. Select Library
Reference»NI-DAQmx Library in the LabWindows/CVI Help.
Measurement Studio
If you program your NI-DAQmx-supported device in Measurement Studio
using Visual C++, Visual C#, or Visual Basic .NET, you can interactively
create channels and tasks by launching the DAQ Assistant from MAX or
from within Visual Studio .NET. You can generate the configuration code
based on your task or channel in Measurement Studio. Refer to the DAQ
Assistant Help for additional information about generating code. You also
can create channels and tasks, and write your own applications in your
ADE using the NI-DAQmx API.
information you need to acquire and analyze measurement data in
LabVIEW, including common measurements, measurement
fundamentals, NI-DAQmx key concepts, and device considerations.
™
/CVI™, select Help»Contents, then select
For help with NI-DAQmx methods and properties, refer to the NI-DAQmx
.NET Class Library or the NI-DAQmx Visual C++ Class Library included
in the NI Measurement Studio Help. For general help with programming in
Measurement Studio, refer to the NI Measurement Studio Help, which is
fully integrated with the Microsoft Visual Studio .NET help. To view
this help file in Visual Studio. NET, select Measurement Studio»
NI Measurement Studio Help.
To create an application in Visual C++, Visual C#, or Visual Basic .NET,
follow these general steps:
1. In Visual Studio .NET, select File»New»Project to launch the New
Project dialog box.
2. Find the Measurement Studio folder for the language you want to
create a program in.
3. Choose a project type. You add DAQ tasks as a part of this step.
© National Instruments Corporation 5 NI USB-9472 User Guide and Specifications
ANSI C without NI Application Software
The NI-DAQmx Help contains API overviews and general information
about measurement concepts. Select Start»All Programs»National
Instruments»NI-DAQ»NI-DAQmx Help.
The NI-DAQmx C Reference Help describes the NI-DAQmx Library
functions, which you can use with National Instruments data acquisition
devices to develop instrumentation, acquisition, and control applications.
Select Start»All Programs»NationalInstruments»NI-DAQ»
NI-DAQmx C Reference Help.
.NET Languages without NI Application Software
With the Microsoft .NET Framework version 1.1 or later, you can use
NI-DAQmx to create applications using Visual C# and Visual Basic
.NET without Measurement Studio. You need Microsoft Visual Studio
.NET 2003 or Microsoft Visual Studio 2005 for the API documentation to
be installed.
The installed documentation contains the NI-DAQmx API overview,
measurement tasks and concepts, and function reference. This help is fully
integrated into the Visual Studio .NET documentation. To view the
NI-DAQmx .NET documentation, go to Start»Programs»National
Instruments»NI-DAQ»NI-DAQmx .NET Reference Help. Expand
NI Measurement Studio Help»NI Measurement Studio .NET Class
Library»Reference to view the function reference. Expand
NI Measurement Studio Help»NI Measurement Studio .NET Class
Library»Using the Measurement Studio .NET Class Libraries to view
conceptual topics for using NI-DAQmx with Visual C# and Visual
Basic .NET.
To get to the same help topics from within Visual Studio, go to
Help»Contents. Select Measurement Studio from the Filtered By
drop-down list and follow the previous instructions.
Device Documentation and Specifications
NI-DAQmx includes the Device Document Browser, which contains
online documentation for supported DAQ, SCXI, and switch devices, such
as help files describing device pinouts, features, and operation, and PDF
files of the printed device documents. You can find, view, and/or print the
documents for each device using the Device Document Browser at any
time by inserting the CD. After installing the Device Document Browser,
device documents are accessible from Start»All Programs»National
Instruments»NI-DAQ»Browse Device Documentation.
Note You can download these documents at ni.com/manuals.
NI USB-9472 User Guide and Specifications 6 ni.com
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