private void DisplayButton_Click(object sender, EventArgs e)
{
try
{
// 获取单个信息
xPCParameters param = xPCTarget.Application.Parameters;
xPCParameter p = param["SetPoint", "Value"];
Double[] para = p.GetParam();
Console.WriteLine(para[0]);
Console.WriteLine();
xPCSignals signal = xPCTarget.Application.Signals;
xPCSignal s = signal["TankLevel"];
Console.WriteLine(s.GetValue());
Console.WriteLine("display succesfully");
// 获取集合信息
// xPCTarge在运行时才能采样
if (xPCTarget.Application.Status == xPCAppStatus.Running)
{
Console.WriteLine("in1");
xPCScopes scopes = xPCTarget.Application.Scopes;
scopes.RefreshAll();
xPCHostScopeCollection hScopes = scopes.HostScopes;
xPCHostScope sc = hScopes[refSc.ScopeId];
// SCSTATUS.FINISHED是指采样结束，SetAppHostScopes()中设置的采样间隔*采样数=100s，即50s才能获取到采样信息
// xPCHostScope的状态为SCSTATUS.FINISHED是指采样结束
if (sc.Status == SCSTATUS.FINISHED)
{
Console.WriteLine("in2");
xPCDataHostScSignalObject scDataObj = sc.DataTimeObject;
Double[] Time = scDataObj.GetData();
Double[] data1 = sc.Signals["TankLevel"].HostScopeSignalDataObject.GetData();
Double[] data2 = sc.Signals["SetPoint"].HostScopeSignalDataObject.GetData();
Chart.Series[0].ChartType = System.Windows.Forms.DataVisualization.Charting.SeriesChartType.Point;
Chart.Series[1].ChartType = System.Windows.Forms.DataVisualization.Charting.SeriesChartType.Point;
Chart.Series[0].Points.Clear();
Chart.Series[1].Points.Clear();
for (int pointIndex = 0; pointIndex < data1.Length; pointIndex++)
{
Chart.Series[0].Points.AddXY(Time[pointIndex], data1[pointIndex]);
Chart.Series[1].Points.AddXY(Time[pointIndex], data2[pointIndex]);
Console.WriteLine(Time[pointIndex] + " : " + data2[pointIndex]);
}
}
}
}
catch (xPCException ex)
{
Console.WriteLine(ex.Message);
MessageBox.Show(ex.Message);
}
}
private void SetAppHostScopes()
{
try
{
// Initialize scopes.
xPCApplication app = xPCTarget.Application;
if (app.Status == xPCAppStatus.Running)
{
app.Stop();
}
// Refresh all scopes.
xPCScopes scopes = app.Scopes;
scopes.RefreshAll();
// Delete any existing host scopes.
xPCHostScopeCollection hScopes = scopes.HostScopes;
hScopes.Remove();
// Add a host scope to capture data for signal display.
this.refSc = hScopes.Add();
// NumSamples是采样的数量，10000即采样10000次
// application.StopTime = 360;运行360s
// 每次采样间隔0.01s，采样5000次需要50s
this.refSc.DataTimeObject.NumSamples = 5000;
refSc.NumSamples = 5000;
refSc.Signals.Add("SetPoint");
refSc.Signals.Add("TankLevel");
Console.WriteLine("in0");
}
catch (xPCException ex)
{
MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}