public static extern uint SetChannel(
short handle,
Channel channel,
short enabled,
CouplingType couplingType,
Range range,
float analogueOffset);
/// <summary>Assigns default values to project variables.</summary>
public void SetDefaults()
{
this.Title = "";
this.Rptflag = false;
for (int i = 0; i < (int)ObjectTypes.MAX_OBJECTS; i++)
{
this.Nobjects[i] = 0;
}
this.Unitsflag = UnitSystemType.US;
this.Flowflag = FlowUnitsType.GPM;
this.Statflag = TstatType.SERIES;
this.DefRtol = 0.001;
this.DefAtol = 0.01;
this.Solver = SolverType.EUL;
this.Coupling = CouplingType.NO_COUPLING;
this.AreaUnits = AreaUnitsType.FT2;
this.RateUnits = RateUnitsType.DAYS;
this.Qstep = 300;
this.Rstep = 3600;
this.Rstart = 0;
this.Dur = 0;
this.Node = null;
this.Link = null;
this.Tank = null;
this.D = null;
this.Q = null;
this.H = null;
this.Species = null;
this.Term = null;
this.Const = null;
this.Pattern = null;
}
private void StartAcquisitionBtn_Click(object sender, EventArgs e)
{
try
{
_log.Info("Starts to Data acquisition.");
string deviceDescription = DeviceIDtextBox.Text;
waveformAiCtrl.SelectedDevice = new DeviceInformation(deviceDescription);
if (BioFailed(errorCode))
{
throw new Exception();
}
string DAQinputrange = InputrangecomboBox.Text;
string DAQaisignaltype = ConnecttypecomboBox.Text;
string DAQCoupletype = CoupletypecomboBox.Text;
convertClkRate = int.Parse(SamplingTextbox.Text);
int sectionLength = int.Parse(DataLengthtextBox.Text);
int startChannel = int.Parse(ChanneltextBox.Text);
int Freqrange = int.Parse(FreqrangetextBox.Text);
int Minxlength = int.Parse(FreqMintextBox.Text);
int Maxxlength = int.Parse(FreqMaxtextBox.Text);
lowcutoff = int.Parse(Lowcutoffbox.Text);
highcutoff = int.Parse(highcutoffbox.Text);
//Load parameter
Conversion conversion = waveformAiCtrl.Conversion;
conversion.ChannelStart = startChannel;
conversion.ChannelCount = channelCount;
conversion.ClockRate = convertClkRate;
Record record = waveformAiCtrl.Record;
record.SectionCount = sectionCount;// 'streaming' mode.
record.SectionLength = sectionLength;
//initial Draw parameter
DrawClass DC = DrawClass.GetInstance();
DC.Sampling = convertClkRate;
DrawFFTChart DFC = DrawFFTChart.GetInstance();
DFC.DataLength = sectionLength;
DFC.Freqrange = Freqrange;
DFC.FreqMax = Maxxlength;
DFC.FreqMin = Minxlength;
DFC.Sampling = convertClkRate;
DrawMaxChart DMC = DrawMaxChart.GetInstance();
DMC.DataLength = sectionLength;
DMC.Freqrange = Freqrange;
DMC.FreqMax = Maxxlength;
DMC.FreqMin = Minxlength;
DMC.Sampling = convertClkRate;
try
{
_log.Info("Load DAQ parameter");
//mapping inputrange - 5 to 5 V // -10 to 10 V // -1 to 1 V // 4 to 20 mA
switch (DAQinputrange)
{
case "-1 to 1 V":
inputrange = ValueRange.V_Neg1To1;
break;
case "-1.25 to 1.25 V":
inputrange = ValueRange.V_Neg1pt25To1pt25;
break;
case "-5 to 5 V":
inputrange = ValueRange.V_Neg5To5;
break;
case "-10 to 10 V":
inputrange = ValueRange.V_Neg10To10;
break;
case "4 to 20 mA":
inputrange = ValueRange.mA_4To20;
break;
default:
break;
}
//mapping DAQ Signal Type // Differential // SingleEnded
switch (DAQaisignaltype)
{
case "Differential":
aisignaltype = AiSignalType.Differential;
break;
case "PsuedoDifferential":
aisignaltype = AiSignalType.PseudoDifferential;
break;
case "SingleEnded":
aisignaltype = AiSignalType.SingleEnded;
break;
default:
break;
}
switch (DAQCoupletype)
{
case "ACCouple":
coupletype = CouplingType.ACCoupling;
break;
case "DCCouple":
coupletype = CouplingType.DCCoupling;
break;
default:
break;
}
foreach (AnalogInputChannel ai in waveformAiCtrl.Channels)
{
if (DAQCoupletype != "None")
{
try
{
ai.CouplingType = coupletype;
}
catch (Exception ex)
{
MessageBox.Show("This DAQ do not support AC/DC Couple" + ex);
}
}
ai.ValueRange = inputrange;
ai.SignalType = aisignaltype;
if (IEPEcheckbox.Checked == true)
{
ai.IepeType = IepeType.IEPE4mA;
}
}
}
catch (Exception err)
{
_log.Error("Faile to Load DAQ parameter message is---" + err.Message);
}
// prepare the Streaming AI.
errorCode = waveformAiCtrl.Prepare();
if (BioFailed(errorCode))
{
throw new Exception();
}
// The operation has been started
// We can get samples via event handlers.
errorCode = waveformAiCtrl.Start();
if (BioFailed(errorCode))
{
throw new Exception();
}
// The device is acquiring data.
// Stop the operation if it is running.
SamplingTextbox.Enabled = false;
DataLengthtextBox.Enabled = false;
ChanneltextBox.Enabled = false;
FreqrangetextBox.Enabled = false;
DeviceIDtextBox.Enabled = false;
FreqMintextBox.Enabled = false;
FreqMaxtextBox.Enabled = false;
StartAcquisitionBtn.Enabled = false;
StopAcquisitionBtn.Enabled = true;
acquisitionstatus.Text = "Status : Start reading";
acquisitionbar.Style = System.Windows.Forms.ProgressBarStyle.Marquee;
_log.Info("Start Data Collection");
}
catch (Exception err)
{
errorCode = waveformAiCtrl.Stop();
if (BioFailed(errorCode))
{
throw new Exception();
}
waveformAiCtrl.Dispose();
SamplingTextbox.Enabled = true;
DataLengthtextBox.Enabled = true;
ChanneltextBox.Enabled = true;
FreqrangetextBox.Enabled = true;
DeviceIDtextBox.Enabled = true;
FreqMintextBox.Enabled = true;
FreqMaxtextBox.Enabled = true;
StartAcquisitionBtn.Enabled = true;
StopAcquisitionBtn.Enabled = false;
acquisitionstatus.Text = "Status : Stop";
acquisitionbar.Style = System.Windows.Forms.ProgressBarStyle.Blocks;
_log.Error("Start acquisition failed---" + err.Message);
// If something wrong in this execution, print the error code on screen for tracking.
string errStr = BioFailed(errorCode) ? " Some error occurred. And the last error code is " + errorCode.ToString()
: err.Message;
MessageBox.Show(errStr);
}
}
