public TcDaqStorage()
{
// Storage length = 10 minutes DAQ gathering length
length = (int)TcComm.ReadInt(tagDaqLength, ETcRunTime.RT1) / 2 * 5 * 60 * 10;
values = new float[length];
fValueList = new List <float>(length / 2 / 30);
dValueList = new List <double>(length / 2 / 30);
}
private void DoThreadWork()
{
float[] tcValues = null;
float[] tcNewValues = null;
int tcLength = TcComm.ReadInt(tagDaqLength, ETcRunTime.RT1) / 2;
while (threadTerminated == false)
{
// Is a half of DAQ storage full?
if (TcComm.ReadBool(tagDaqActive, ETcRunTime.RT1) == true)
{
int tcIndex = TcComm.ReadInt(tagDaqIndex, ETcRunTime.RT1);
int tcStart = (tcIndex < tcLength) ? tcLength : 0;
// Read DAQ storage values from TwinCAT
tcValues = TcComm.ReadRealArray(tagDaqValues, tcLength * 2, ETcRunTime.RT1);
//Copy into newValues array
tcNewValues = new float[tcLength];
Array.Copy(tcValues, tcStart, tcNewValues, 0, tcLength);
// Reset DAQ half full flag
TcComm.WriteBool(tagDaqActive, false, ETcRunTime.RT1);
lock (dataLock)
{
Array.Copy(tcValues, tcStart, values, index, tcLength);
index = (index + tcLength) % length;
}
diState = (UInt16)GetFloatValue(ETcRealTags.DI_24_None);
doState = (UInt16)GetFloatValue(ETcRealTags.DO_25_None);
errorCode = (int)GetFloatValue(ETcRealTags.ID_27_ErrorCode);
try
{
OnDaqAvailable(new DaqEventArgs(tcNewValues));
}
catch (Exception ex)
{
Debug.Print(ex.ToString());
}
}
Thread.Sleep(1);
}
}
