NI MyDAQ Bedienungsanleitung

myDAQ

iDaq Component

User guide

July 2016

Rev 03

myDAQ iDaq Component –User Guide

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myDAQ iDaq Component –User Guide

SUMMARY

Overview............................................................................................................................................................................. 5

Introduction........................................................................................................................................................................ 5

Installation .......................................................................................................................................................................... 6

Getting started with myDAQ devices ................................................................................................................................. 7

Adding a myDAQ device to the list of active devices...................................................................................................... 7

myDAQ settings .................................................................................................................................................................. 9

Analog Input settings .................................................................................................................................................... 10

Channel Settings ........................................................................................................................................................... 11

Editing channel properties............................................................................................................................................ 11

myDAQ Digital Multimeter (DMM)............................................................................................................................... 12

Useful links........................................................................................................................................................................ 14

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OVERVIEW

NI myDAQ is a data acquisition device that gives students the ability to measure and

analyze live signals anywhere, anytime. myDAQ for iDaq component allows the acquisition

of analog signals with NI myDAQ boards.

This guide explains how to install and use the myDAQ component.

INTRODUCTION

This component manages acquisition of myDAQ channels. It allows users to acquire audio

signals, general analog input signals and DMM signals.

myDAQ component has the following features:

Acquisition of audio signals.

Acquisition of general analog input signals (ai0 and ai1).

Acquisition of DMM (Digital Multimeter) signals.

Easy-to-use console for the DMM.

Quick setup.

It has seven analog input channels:

oDMM Voltage

oDMM Current

oDMM Resistance

oAudio Left

oAudio Right

oai0

oai1

myDAQ iDaq Component –User Guide

INSTALLATION

myDAQ component is distributed with iDaq and it is installed automatically during iDaq

installation process. To check if this component is installed correctly, run iDaq, open Device

& Sensors tab and click on Configuration button as indicated in figure below.

FIGURE 1–CHECKING INSTALLATION OF MYDAQ COMPONENT

As shown in the following figure, if the installation process of iDaq has been successfully

completed, myDAQ and myDAQcquisition should be in the list of installed components.

FIGURE 2-CHECKING INSTALLATION OF MYDAQ COMPONENT

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GETTING STARTED WITH MYDAQ DEVICES

This section explains how to add, configure and use myDAQ device with iDaq.

ADDING A MYDAQ DEVICE TO THE LIST O F ACTIVE DEVICES

To add a new myDAQ device to the list of active devices, open Device tab from the iDaq

main window end select Add button, as shown in figure below.

FIGURE 3–INSTALLING A NEW MYDAQ IN IDAQ

A new dialog window shows the icons of available devices you can use in iDaq to acquire

signals. The list of icon in your iDaq installation may be different from the image below,

according to the number of components you have installed.

FIGURE 4–DEVICE TYPE SELECTION WINDOW.

myDAQ iDaq Component –User Guide

From Device type selection window, click on myDAQ. As shown in the following window,

myDAQ Selection Window will appear.

FIGURE 5-MYDAQ SELECTION WINDOW

MyDAQ Selection Window contain the following elements:

1. Table of available myDAQ devices. It shows a list of connected myDAQ devices.

2. Refresh button. Use this button to refresh the list of available myDAQ devices.

3. Reset button. Use this button to reset settings of the selected myDAQ device to

default.

To add an existing myDAQ device to the active device list, highlight it and press OK button.

It will be added to the list of active devices and the last-used device settings will be loaded.

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MYDAQ SETTINGS

As shown in the following figure, to define settings of a myDAQ device, click on the myDAQ

device in the active device list.

FIGURE 6–MYDAQ DEVICE EDITOR

Device editor contains the following settings:

1. myDAQ Acquisition settings. Use this button to configure analog input settings.

2. Analog Input Channel Settings button. Use this button to edit channels properties.

3. Voltage Generation Settings. For more details, view DAQ-mx User Manual.

4. Analog Output Channel Settings. For more details, view DAQ-mx User Manual.

5. Description. Click on this field to edit device description.

6. Reboot button. Use this button to reboot myDAQ device. Reboot is required to be

sure that changes made in settings page take effect.

7. Help button. Use this button to open myDAQ user guide (the document you are

reading now).

myDAQ iDaq Component –User Guide

ANALOG INPUT SETTINGS

To configure Analog Input acquisition, click on myDAQ Acquisition button, the following

dialog is shown.

FIGURE 7–MYDAQ ACQUISITION SETTINGS WINDOW

myDAQ Acquisition Settings Window is composed of the following elements:

1. Acquire audio signals. NI myDAQ has two audio channels (left audio channel and

right audio channel) and other two generic analog input channels that cannot be

acquired simultaneously. If Acquire audio signals is enabled, myDAQ will be

configured to acquire audio channels only; hence, ai0 and ai1 will not be acquired.

Vice versa, if Acquire audio signals is disabled, myDAQ will be configured to

acquire ai0 and ai1 channels only.

2. Sampling Rate. You can change the sampling rate used for all channels acquired with

myDAQ. Although DMM signals are acquired with a slow frequency (about 2 Hz), all

the signals will be resampled at the specified sampling rate. In particular, for DMM

signals, myDAQ component performs a 0-order padding in order to obtain the

desired sampling frequency.

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