National Instruments 374318A-01 用户手册

© National Instruments Corporation

[C#]

// This stops the scan

private void button2_Click(object sender, System.EventArgs e)

{

aiScan1.Stop();

}

5.

Double-click the 

AIScan

 component to open the code window.

6.

Add the following lines of code to the 

DataReady

 event of the 

aiScan1

 component to copy the analog data to an array.

[VB.NET]

Private Sub AiScan1_DataReady(ByVal sender As Object, ByVal e As System.Even-
tArgs) Handles AiScan1.DataReady 

WaveformGraph1.PlotY(AiScan.GetSingleChannelValues(), 0, 1.0 / 

AiScan1.ActualRate)

[C#]

private void aiScan1_DataReady(object sender, System.EventArgs e) 

{ 

waveformGraph1.PlotY(AiScan.GetSingleChannelValues(), 0, 

1.0/aiScan1.ActualRate); 

}

7.

Add the following lines of code to the 

ErrorOccurred

 event of the 

aiScan1

 component to display a message box if an error occurs.

[VB.NET]

Private Sub AiScan1_ErrorOccurred(ByVal sender As Object, ByVal e As 

MccDaq.ScanComponents.ErrorOccurredEventArgs) Handles AiScan1.ErrorOccurred

AiScan1.Stop()

MessageBox.Show(AiScan1.Status, "AI Scan Error")

End Sub

[C#]

private void aiScan1_ErrorOccurred(object sender, 

MccDaq.ScanComponents.ErrorOccurredEventArgs e)

{

aiScan1.Stop();

MessageBox.Show(aiScan1.Status, "AI Scan Error");

}