National-instruments Measure Data Acquisition Manuel d'utilisateur télécharger pdf (Page 16)

Configuring an Analog Input Task

From the Analog Input Configuration dialog box, you can specify all

the parameters for an analog input operation. In the following steps,

you create a simple analog input task. Refer to Chapter 4, Analog Input

Reference, for more detailed information about the different options for

analog input.

1. The Analog Input Scan List at the top of the dialog box is where

you specify the input channels on your DAQ device from which

you would like to acquire data. For each input channel you add to

the scan list, you must specify a high and low voltage limit for the

signals that you read. Measure puts default values for your device

in the high and low limit fields. Measure uses these limits to

configure the gain settings on your DAQ device for maximum

measurement accuracy.

Type

in the Channel field and click on the Add>> button to

place the channel into your scan list.

2. In the Scan Information section of the dialog box, you specify how

many scans of your channel list are to be acquired. A scan is a

single measurement from each channel in your scan list. In this

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National-instruments Measure Data Acquisition Manuel d'utilisateur Page 16