public bool CheckDMMError(Ag34450 dmm)
{
dmm.System2.WriteString("SYST:ERR?");
string errStr = dmm.System2.ReadString();
if (errStr.Contains("No error")) //If no error, then return
{
return(true);
}
//If there is an error, read out all of the errors and return them in an exception
else
{
Application.Current.Dispatcher.Invoke(() => MessageBox.Show(errStr));
string errStr2 = "";
do
{
dmm.System2.WriteString("SYST:ERR?");
errStr2 = dmm.System2.ReadString();
if (!errStr2.Contains("No error"))
{
errStr = errStr + "\n" + errStr2;
}
} while (!errStr2.Contains("No error"));
throw new Exception("Exception: Encountered system error(s)\n" + errStr);
}
}
public double Measure()
{
Ag34450 dmm = new Ag34450();
double reading = 0;
try
{
dmm.Initialize("USB0::0x2A8D::0xB318::MY59150006::0::INSTR", false, true);
//dmm.Initialize("GPIB::23", false, true,"simulate = true");
dmm.Status.Clear();
dmm.Status.Preset();
dmm.DCVoltage.AutoRangeEnabled = true;
dmm.DCVoltage.ConfigureAuto();
dmm.Trigger.Delay = 0.01;
reading = dmm.Measurement.Read(2000);
if (CheckDMMError(dmm))
{
return(reading);
}
}
catch (Exception e)
{
System.Windows.Application.Current.Dispatcher.Invoke(() => MessageBox.Show("Error occured: " + e.Message));
}
try { dmm.Close(); }
catch { }
try { System.Runtime.InteropServices.Marshal.ReleaseComObject(dmm); }
catch { }
return(reading);
}
