National Instruments NI USB-9264 Manuale utente

USER GUIDE AND SPECIFICATIONS

NI USB-9264

16-Channel, ±10 V, 16-Bit Analog Voltage Output Module

This user guide describes how to use the National Instruments USB-9264

and lists the device specifications.

Introduction

The NI USB-9264 consists of two components: an NI 9264 module and an

NI USB-9162 carrier, as shown in Figure 1.

Figure 1. NI USB-9264 Components

NI 9264

NI USB-9162

NI USB-9264

Hi-SPeed USB Carrier

NI USB-9162

Hi-Speed USB Carrier

NI USB-9162

NI USB-9264 User Guide and Specifications 2 ni.com

Dimensions

Figure 2 shows the NI USB-9264 device dimensions.

Figure 2. NI USB-9264 Device Dimensions in Millimeters (Inches)

Safety Guidelines

Operate the NI USB-9264 only as described in this user guide.

Hot Surface This icon denotes that the component may be hot. Touching this component

may result in bodily injury.

Safety Guidelines for Hazardous Voltages

A hazardous voltage is a voltage greater than 42.4 Vpk or 60 VDC to earth

ground. If hazardous voltages are connected to the module, take the

following precautions.

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.

Hi-Speed USB Carrier

NI USB-9162

120.68 mm

(4.751 in.)

118.26 mm

(4.656 in.)

88.12 mm

(3.469 in.)

25.34 mm

(0.998 in.)

©National Instruments Corporation 3 NI USB-9264 User Guide and Specifications

Caution When module terminals are hazardous voltage LIVE (>42.4 Vpk/60 VDC), you

must ensure that devices and circuits connected to the module are properly insulated from

human contact. You must use the NI 9940 connector backshell kit, illustrated in Figure 3,

to ensure that the terminals are not accessible.

Figure 3. NI 9940 Connector Backshell

Related Documentation

Each application software package and driver includes information about

writing applications for taking measurements and controlling measurement

devices. Check ni.com/manuals for the most recent hardware

documentation, and refer to Table for a list of locations for driver and

application software documentation. The following document location

references assume you have NI-DAQmx 8.9 or later, and where applicable,

version 7.1 or later of the NI application software.

NI USB-9264 User Guide and Specifications 4 ni.com

Table 1. Related Documentation

Software Document/Description Location/Topic

NI-DAQmx for Windows DAQ Getting Started Guide—

describes how to install the

NI-DAQmx for Windows

software, your NI-DAQmx

supported DAQ device, and

how to confirm that your

device is operating properly.

Start»All Programs»

National Instruments»

NI-DAQ»DAQ Getting

Started Guide

NI-DAQ Readme—lists which

devices are supported by this

version of NI-DAQmx.

Start»All Programs»

National Instruments»

NI-DAQ»NI-DAQ Readme

NI-DAQmx Help—contains

general information about

measurement concepts, key

NI-DAQmx concepts, and

common applications that

are applicable to all

programming environments.

Start»All Programs»

National Instruments»

NI-DAQ»NI-DAQmx Help

LabVIEW Getting Started with

LabVIEW—describes the

LabVIEW graphical

programming environment and

the basic LabVIEW features

you use to build data

acquisition and instrument

control application.

Start»All Programs»

National Instruments»

LabVIEW»LabVIEW

Manuals or navigate to the

labview\manuals directory

and open

LV_Getting_Started.pdf

LabVIEW Help—provides

information about LabVIEW

programming concepts,

step-by-step instructions for

using LabVIEW, and reference

information about LabVIEW

VIs, functions, palettes,

menus, and tools.

Help»Search the LabVIEW

Help

©National Instruments Corporation 5 NI USB-9264 User Guide and Specifications

LabVIEW Help Topics Specific to NI-DAQmx

Location Description

From the Contents tab,

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.

From the Contents tab,

VI and Function Reference»

Measurement I/O VIs and

Functions

Describes the LabVIEW NI-DAQmx VIs and properties.

From the Contents tab,

Taking Measurements

Contains the conceptual and how-to information you need to

acquire and analyze measurement data in LabVIEW, including

common measurements, measurement fundamentals,

NI-DAQmx key concepts, and device considerations.

LabWindows™/CVI™LabWindows/CVI Help Data

Acquisition book—contains

NI-DAQmx measurement

concepts and step-by-step

instructions about creating a

measurement task using the

DAQ Assistant.

Help»Contents, then select

Using LabWindows/CVI»

Data Acquisition»Taking an

NI-DAQmx Measurement in

LabWindows/CVI

LabWindows/CVI Help

NI-DAQmx Library

book—contains NI-DAQmx

API overviews and function

reference.

LibraryReference»

NI-DAQmx Library

Measurement Studio/

Microsoft Visual Studio .NET

Help/NI Measurement Studio

Help—contains NI-DAQmx

methods and properties.

Measurement Studio»

NI Measurement Studio

Help and select NI-DAQmx

.NET Class Library or

NI-DAQmx Visual C++

Class Library

ANSI C without

NI Application Software

NI-DAQmx Help Start»All Programs»

National Instruments»

NI-DAQ»NI-DAQmx Help

NI-DAQmx C Reference

Help—describes the

NI-DAQmx Library functions.

Start»All Programs»

National Instruments»

NI-DAQ»NI-DAQmx

C Reference Help

Table 1. Related Documentation (Continued)

Software Document/Description Location/Topic

NI USB-9264 User Guide and Specifications 6 ni.com

Device Documentation and Specifications

Check ni.com/manuals for the most recent device and software

documentation. If you do not have Web access, NI-DAQmx includes a

Documentation CD that includes documentation available when

NI-DAQmx released.

Training Courses

If you need more help getting started developing an application with

NI products, NI offers training courses. To enroll in a course or obtain

a detailed course outline, refer to ni.com/training.

Technical Support on the Web

For additional support, refer to ni.com/support or zone.ni.com.

.NET Languages without

NI Application Software*

NI-DAQmx .NET

Help—contains conceptual

topics for using NI-DAQmx

with Visual C# and Visual

Basic .NET.

Start»All 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

Visual Studio .NET

Help—contains conceptual

topics for using NI-DAQmx

with Visual C# and Visual

Basic .NET.

Help»Contents. Select

Measurement Studio from

the Filtered By drop-down list

and follow the location

instructions for the NI-DAQmx

.NET Help.

* 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.

Table 1. Related Documentation (Continued)

Software Document/Description Location/Topic

©National Instruments Corporation 7 NI USB-9264 User Guide and Specifications

Installing the Software

Software support for the NI USB-9264 for Windows Vista/XP is provided

by NI-DAQmx. The DAQ Getting Started Guide, which you can download

at ni.com/manuals, offers NI-DAQmx users step-by-step instructions

for installing software and hardware, configuring channels and tasks, and

getting started developing an application.

Installing Other Software

If you are using other software, refer to the installation instructions that

accompany your software.

Example Programs

The NI-DAQmx media contains example programs that you can use to get

started programming with the NI USB-9264. Refer to the NI-DAQmx for

USB Devices Getting Started Guide that shipped with your device, and

is also accessible from Start»All Programs»National Instruments»

NI-DAQ, for more information.

Mounting the NI USB-9264 to a Panel

Threaded inserts are located in the NI USB-9162 for mounting it to a panel.

Mount the NI USB-9162 before inserting the NI 9264. Refer to Figure 4 for

dimensions.

Figure 4. Module Mounting Dimensions In Millimeters (Inches)

72.2 mm

(2.84 in.)

85.7 mm

(3.37 in.)

76.1 mm

(3.00 in.)

Threaded Insert

M3 x 0.5

8.5 mm (0.34 in.) Max Depth

NI USB-9264 User Guide and Specifications 8 ni.com

Installing the NI USB-9264 Device

Before installing the device, you must install the software you plan to use

with the device. Refer to the Installing the Software section of this guide

and the documentation included with the software for more information.

Installing the NI 9264 Module into the NI USB-9162 Carrier

The NI 9264 module and NI USB-9162 carrier are packaged separately.

Refer to Figure 5, while completing the following assembly steps:

1. Make sure that no signals are connected to the NI 9264 module and the

USB cable is not attached to the USB-9162 carrier.

2. Remove the protective cover from the 15-pin D-SUB connector.

3. Align the I/O module with the carrier, as shown in Figure 5.

Figure 5. Module Installation

4. Squeeze the latches and insert the NI 9264 module into the

NI USB-9162 carrier.

5. Press firmly on the connector side of the NI 9264 module until the

latches lock the module into place, as shown in Figure 6.

Figure 6. Locking Module into Place

©National Instruments Corporation 9 NI USB-9264 User Guide and Specifications

Connecting the NI USB-9264 to a Computer

Plug one end of the USB cable into the NI USB-9264 and the other end into

an available USB port on the computer. Refer to the NI-DAQmx for USB

Devices Getting Started Guide that shipped with your device, and is also

accessible from Start»All Programs»National Instruments»NI-DAQ,

for more information.

LED Indicator

The NI USB-9264 device has a green LED next to the USB connector. The

LED indicator indicates device status, as listed in Table 2. When the device

is connected to a USB port, the LED blinks steadily to indicate that the

device is initialized and is receiving power from the connection.

If the LED is not blinking, it may mean that the device is not initialized or

the computer is in standby mode. In order for the device to be recognized,

the device must be connected to a computer that has NI-DAQmx installed

on it. If your device is not blinking, make sure your computer has the latest

version of NI-DAQmx installed on it, and the computer is not in standby

mode.

Table 2. LED State/Device Status

LED State Device Status

Not lit Device not connected or in suspend.

On, not blinking Device connected, but no module installed.

Single-blink Operating normally.

Double-blink Operating normally.

Quadruple-blink Device error. Refer to ni.com/support.

NI USB-9264 User Guide and Specifications 10 ni.com

Wiring the NI USB-9264 Device

The NI USB-9264 has a 36-terminal detachable spring-terminal connector

that provides connections for 16 analog output channels.

Caution A high voltage screw terminal backshell must be installed when using hazardous

voltages (>42.4 Vpk, 60 VDC).

Figure 7. NI USB-9264 Terminal Assignments

Each channel of the NI USB-9264 has a terminal to which you can connect

the positive lead of a load. Each channel also has a common terminal,

COM, and there are four additional COM terminals at the bottom of the

connector. All of the COM terminals are internally connected to the

isolated ground reference of the module. When connecting a load to the

NI USB-9264, connect the positive lead of the load to the AO terminal, and

the ground of the load to a COM terminal. Refer to Figure 8 for an

illustration of connecting a load to the NI USB-9264.

Figure 8. Connecting a Load to the NI USB-9264

AO0

AO1

AO2

AO3

AO4

AO5

AO6

AO7

AO8

AO9

AO10

AO11

AO12

AO13

AO14

AO15

COM

Load

NI USB-9264

Indice

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