/// <summary>
/// Not support by usb-1208
/// </summary>
/// <param name="Chan"></param>
/// <returns></returns>
public float ReadTemperature(int Chan)
{
MccDaq.TempScale MccScale = MccDaq.TempScale.Celsius;
float TempValue = 0.0f;
MccDaq.ThermocoupleOptions Options = MccDaq.ThermocoupleOptions.WaitForNewData;
MccDaq.ErrorInfo ULStat = DaqBoard.TIn(Chan, MccScale, out TempValue, Options);
return(TempValue);
}
private void tmrConvert_Tick(object eventSender, System.EventArgs eventArgs)
{
bool ValidChan;
tmrConvert.Stop();
// Collect the data with Mccdaq.MccBoard.TIn()
// Parameters:
// Chan :the A/D and channel number; starts at 16 if using
// an EXP (calculated by (ADChan + 1) * 16 + EXPChan)
// MccScale :the temperature scale (F, C or K)
// DataValue :the name for the value collected
// ADChan :usually channel 0 for CIO-EXP16
short ADChan = 0; // If using a device with an EXP attached,
// allows access to 16 channels on the EXP board
// increasing this number allows access to upper
// bank on EXP32 and additional EXP boards
MccDaq.TempScale MccScale = MccDaq.TempScale.Celsius;
int Chan = 0;
ValidChan = int.TryParse(txtExpChan.Text, out Chan);
if (ValidChan)
{
if (UsesEXPs > 0)
{
Chan = Chan + (ADChan + 1) * 16;
}
}
float TempValue = 0.0f;
MccDaq.ThermocoupleOptions Options = MccDaq.ThermocoupleOptions.Filter;
MccDaq.ErrorInfo ULStat = DaqBoard.TIn(Chan, MccScale, out TempValue, Options);
if (ULStat.Value == MccDaq.ErrorInfo.ErrorCode.NoErrors)
{
tmrConvert.Start();
}
lblShowData.Text = TempValue.ToString("0") + "°C"; // print the value
}
// This function changes CHANCOUNT, by detecting the actual number of
// working thermocouple inputs connected to the USB-TC board.
public void TC_finder()
{
MccBoard daq = new MccDaq.MccBoard(BoardNum);
MccDaq.ErrorInfo RetVal;
CHANCOUNT = MAX_CHANCOUNT;
float[] temp = new float[MAX_CHANCOUNT];
try
{
for (int i = 0; i < MAX_CHANCOUNT; i++)
{
RetVal = daq.TIn(i, TempScale.Celsius,
out temp[i], ThermocoupleOptions.Filter);
if (RetVal.Value != 0)
{
CHANCOUNT--;
}
}
if (CHANCOUNT <= 0)
{
MessageBox.Show("No thermocouples detected!", " " + "ERROR!");
return;
}
NumThermocouplesBox.Text = " " + CHANCOUNT.ToString();
return;
}
catch
{
MessageBox.Show("Function TC_finder has an error!", " " + "ERROR!");
return;
}
}
// This function updates the GUI's temperature readout and graphs
public void update_gui()
{
while (start_check != 3)
{
float[] TempData = new float[MAX_CHANCOUNT];
MccBoard daq = new MccDaq.MccBoard(BoardNum);
MccDaq.ErrorInfo RetVal;
Update_Temperature update_temp_del = new
Update_Temperature(update_gui_helper);
for (int i = 0; i < MAX_CHANCOUNT; i++)
{
RetVal = daq.TIn(i, TempScale.Celsius,
out TempData[i],
ThermocoupleOptions.Filter);
}
Invoke(update_temp_del, TempData);
Thread.Sleep(500);
}
}
// This function updates the temperature log text file. It returns if
// the number of channels is invalid. Otherwise, it uses a while loop to
// output temperature readings to a .txt file in the same directory as
// the program folder. It shows an error if there is an open channel.
public void update_log()
{
MccBoard daq = new MccDaq.MccBoard(BoardNum);
MccDaq.ErrorInfo RetVal;
string subject = "";
string body = "";
string separator = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" +
"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" +
"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" +
"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
while (log_check == 0)
{
if (log_state == 0)
{
log_state = 1;
string[] text1 = {"Temperature and events log file.", " ",
"Created on " +
date_time.ToString(format),
" ","Temperature read approx. every 5 "+
"seconds in degrees Celsius.", " "," "};
System.IO.File.WriteAllLines(directory, text1);
string text2 = "Time\t\t\t";
for (int i = 0; i < MAX_CHANCOUNT; i++)
{
text2 += String.Format("Ch{0}", i) + "\t\t";
}
using (StreamWriter sw = File.AppendText(directory))
{
sw.WriteLine(text2);
sw.WriteLine(" ");
}
}
if (HeatingStarted && !HeatingStarted_logged)
{
string temp = DateTime.Now.ToString("T") + "\t\t" +
"HEATING STARTED!";
using (StreamWriter sw = File.AppendText(directory))
{
sw.WriteLine(" ");
sw.WriteLine(separator);
sw.WriteLine(" ");
sw.WriteLine(temp);
sw.WriteLine("\t\t\tUser: "******"\t\t\tBatch code: " + BatchCode_copy);
sw.WriteLine("\t\t\tMax. Temperature: " + MaxTemp_copy);
sw.WriteLine("\t\t\tHold Time: " + HoldTime_copy);
sw.WriteLine("\t\t\tCooling method: " + CoolMethod_copy);
sw.WriteLine(" ");
sw.WriteLine(separator);
sw.WriteLine(" ");
}
subject = "Heating has started on " + OvenName_copy +
" oven!";
body = User_copy + ",\n\n" + subject +
"\n\nParameters are: \nBatch Code: " + BatchCode_copy +
"\nMax.Temp: " + MaxTemp_copy +
"\nHold Time: " + HoldTime_copy +
"\nCooling Method: " + CoolMethod_copy +
"\nTime: " + OvenStartTime_copy;
SendEmail(subject, body);
HeatingStarted_logged = true;
}
else if (HeatingStopped && !HeatingStopped_logged)
{
string temp = DateTime.Now.ToString("T") + "\t\t" +
"HEATING STOPPED!";
using (StreamWriter sw = File.AppendText(directory))
{
sw.WriteLine(" ");
sw.WriteLine(separator);
sw.WriteLine(" ");
sw.WriteLine(temp);
sw.WriteLine(" ");
sw.WriteLine(separator);
sw.WriteLine(" ");
}
subject = "Heating has stopped on " + OvenName_copy +
" oven!";
body = User_copy + ",\n\n" + subject;
SendEmail(subject, body);
HeatingStopped_logged = true;
}
else if (MaxTempReached && !MaxTempReached_logged)
{
string temp = DateTime.Now.ToString("T") + "\t\t" +
"MAX. TEMP REACHED!";
using (StreamWriter sw = File.AppendText(directory))
{
sw.WriteLine(" ");
sw.WriteLine(separator);
sw.WriteLine(" ");
sw.WriteLine(temp);
sw.WriteLine(" ");
sw.WriteLine(separator);
sw.WriteLine(" ");
}
subject = "Max. temp reached on " + OvenName_copy +
" oven!";
body = User_copy + ",\n\n" + subject;
SendEmail(subject, body);
MaxTempReached_logged = true;
}
else if (CoolingStarted && !CoolingStarted_logged)
{
string temp = DateTime.Now.ToString("T") + "\t\t" +
"COOLING STARTED!";
using (StreamWriter sw = File.AppendText(directory))
{
sw.WriteLine(" ");
sw.WriteLine(separator);
sw.WriteLine(" ");
sw.WriteLine(temp);
sw.WriteLine(" ");
sw.WriteLine(separator);
sw.WriteLine(" ");
}
subject = "Cooling has started on " + OvenName_copy +
" oven!";
body = User_copy + ",\n\n" + subject;
SendEmail(subject, body);
CoolingStarted_logged = true;
}
else if (IsCriticalError && !IsCriticalError_logged)
{
string temp = DateTime.Now.ToString("T") + "\t\t" +
"CRITICAL ERROR!";
using (StreamWriter sw = File.AppendText(directory))
{
sw.WriteLine(" ");
sw.WriteLine(separator);
sw.WriteLine(" ");
sw.WriteLine(temp);
sw.WriteLine(" ");
sw.WriteLine(separator);
sw.WriteLine(" ");
}
subject = "Critical error on " + OvenName_copy + " oven!";
body = User_copy + ",\n\n" + subject + "\n" +
CriticalErrorMessage;
SendEmail(subject, body);
IsCriticalError_logged = true;
}
else if (OvenRunDone && !OvenRunDone_logged)
{
string temp = DateTime.Now.ToString("T") + "\t\t" +
"OVEN RUN COMPLETE!";
using (StreamWriter sw = File.AppendText(directory))
{
sw.WriteLine(" ");
sw.WriteLine(separator);
sw.WriteLine(" ");
sw.WriteLine(temp);
sw.WriteLine("\t\t\tUser: "******"\t\t\tBatch code: " + BatchCode_copy);
sw.WriteLine("\t\t\tMax. Temperature: " + MaxTemp_copy);
sw.WriteLine("\t\t\tHold Time: " + HoldTime_copy);
sw.WriteLine("\t\t\tCooling method: " + CoolMethod_copy);
sw.WriteLine(" ");
sw.WriteLine(separator);
sw.WriteLine(" ");
}
subject = "Oven run completed on " + OvenName_copy + " oven!";
body = User_copy + ",\n\n" + subject + "\n";
SendEmail(subject, body);
OvenRunDone_logged = true;
}
string text3 = DateTime.Now.ToString("T") + "\t\t";
for (int i = 0; i < MAX_CHANCOUNT; i++)
{
RetVal = daq.TIn(i, TempScale.Celsius,
out LogData[i], ThermocoupleOptions.Filter);
IsError(this, RetVal, true);
if (RetVal.Value != 0)
text3 += "***\t\t";
else
text3 += LogData[i].ToString() + "\t\t";
}
using (StreamWriter sw = File.AppendText(directory))
{
sw.WriteLine(text3);
}
Thread.Sleep(4800);
}
}
// This function reads and displays the temperature inputs by detecting
// the buttons clicked, by detecting the value of the variable "check".
// It runs a while loop to keep checking for button presses, and using
// Thread.Sleep(), it checks buttons, reads and displays temperatures in
// the selected scale at a set frequency (2 Hz). The loop ends when the
// value of check is set to -1 by clicking the Exit button. Temperatures
// are read using the TInScan function, and an array is passed to the
// update_temp() function to display them using a delegate.
private void temp_reader()
{
while (read_check != -1)
{
int count = 0;
float[] TempData = new float[MAX_CHANCOUNT];
float[] TempData_C = new float[MAX_CHANCOUNT];
MccBoard daq = new MccDaq.MccBoard(BoardNum);
MccDaq.ErrorInfo RetVal;
Update_Temperature update_temp_del = new
Update_Temperature(update_temp);
Update_Warning update_warning_del = new
Update_Warning(update_warning);
Reset_Checkboxes resetcheckboxes_del = new
Reset_Checkboxes(resetcheckboxes);
for (int i = 0; i < MAX_CHANCOUNT; i++)
{
if (((CheckBox)this.Controls["Ch" +
i.ToString("#0") + "Box"]).Enabled == true &&
((CheckBox)this.Controls["Ch" +
i.ToString("#0") + "Box"]).Checked == true)
{
count++;
}
}
if (count == 0)
{
TempData = new float[MAX_CHANCOUNT] {-9999, -9999,
-9999, -9999, -9999, -9999, -9999, -9999};
Array.Copy(TempData, TempData_C, 8);
not_showing_temp = true;
Invoke(update_temp_del, TempData, TempData_C);
}
else
not_showing_temp = false;
if (read_check == 1 && not_showing_temp == false)
{
for (int i = 0; i < MAX_CHANCOUNT; i++)
{
if (((CheckBox)this.Controls["Ch" +
i.ToString("#0") + "Box"]).Checked == true)
{
RetVal = daq.TIn(i, TempScale.Celsius,
out TempData_C[i],
ThermocoupleOptions.Filter);
IsError(this,RetVal, true);
}
else
TempData_C[i] = -9999;
}
switch(my_TempScale)
{
case TempScale.Fahrenheit:
for (int i = 0; i < MAX_CHANCOUNT; i++)
{
if (((CheckBox)this.Controls["Ch" +
i.ToString("#0") + "Box"]).Checked == true)
{
RetVal = daq.TIn(i, TempScale.Fahrenheit,
out TempData[i],
ThermocoupleOptions.Filter);
IsError(this,RetVal, true);
}
else
TempData[i] = -9999;
}
break;
case TempScale.Kelvin:
for (int i = 0; i < MAX_CHANCOUNT; i++)
{
if (((CheckBox)this.Controls["Ch" +
i.ToString("#0") + "Box"]).Checked == true)
{
RetVal = daq.TIn(i, TempScale.Kelvin,
out TempData[i],
ThermocoupleOptions.Filter);
IsError(this,RetVal, true);
}
else
TempData[i] = -9999;
}
break;
default:
for (int i = 0; i < MAX_CHANCOUNT; i++)
{
if (((CheckBox)this.Controls["Ch" +
i.ToString("#0") + "Box"]).Checked == true)
{
RetVal = daq.TIn(i, TempScale.Celsius,
out TempData[i],
ThermocoupleOptions.Filter);
IsError(this,RetVal, true);
}
else
TempData[i] = -9999;
}
break;
}
Invoke(update_temp_del, TempData, TempData_C);
Thread.Sleep(500);
}
if ((read_check == 0 && oven_check == 1) ||
(not_showing_temp == true && oven_check == 1))
{
string temp = String.Format("WARNING! Temperature" +
" readings are no longer live during an oven run!\n" +
"Automatically fixing this in {0} seconds...",
(int)(warning_time/2));
Invoke(update_warning_del, temp, 1);
Thread.Sleep(500);
warning_time--;
if (warning_time <= 0)
{
read_check = 1;
Invoke(resetcheckboxes_del);
not_showing_temp = false;
Invoke(update_warning_del, " ", 0);
warning_time = 20;
}
}
// Make sure that the text is grayed out when the Stop TC button
// is in its clicked state.
if (read_check == 0 && oven_check != 1)
{
TempData[0] = 1234;
TempData_C[0] = 1234;
Invoke(update_temp_del, TempData, TempData_C);
Thread.Sleep(500);
}
}
}
// This function changes CHANCOUNT, by detecting the actual number of
// working thermocouple inputs connected to the USB-TC board.
private void TC_finder()
{
MccBoard daq = new MccDaq.MccBoard(BoardNum);
MccDaq.ErrorInfo RetVal;
CHANCOUNT = MAX_CHANCOUNT;
float[] temp = new float[MAX_CHANCOUNT];
try
{
for (int i = 0; i < MAX_CHANCOUNT; i++)
{
RetVal = daq.TIn(i, TempScale.Celsius,
out temp[i], ThermocoupleOptions.Filter);
if (RetVal.Value != 0)
{
CHANCOUNT--;
((CheckBox)this.Controls["Ch" +
i.ToString("#0") + "Box"]).Checked = false;
((CheckBox)this.Controls["Ch" +
i.ToString("#0") + "Box"]).Enabled = false;
}
else
{
((CheckBox)this.Controls["Ch" +
i.ToString("#0") + "Box"]).Checked = true;
((CheckBox)this.Controls["Ch" +
i.ToString("#0") + "Box"]).Enabled = true;
}
}
NumThermocouples.Text = " " + CHANCOUNT.ToString();
return;
}
catch
{
MessageBox.Show("TC_finder has an error!", " " + "ERROR!");
return;
}
}
// This function implements PID control in the oven, by using three
// USB-TC output channels. It calls the functions channel_out() to
// control the heater coils according to the known setup.
private void PID_control()
{
MccBoard daq = new MccDaq.MccBoard(BoardNum);
MccDaq.ErrorInfo RetVal;int count = 0;
float[] PID_LogData = new float[MAX_CHANCOUNT] {0, 0, 0, 0, 0, 0, 0 ,0};;
int PID_max_temp = Convert.ToInt32(MaxTemp.Text);
float current_error = 0; // difference between current and target
// temperatures
float prev_error = PID_max_temp; // the last recorded error;
// initialized to the max temp.
float time_slice = 1; // any non-zero value, so that we don't have
// a divide-by-zero error
float derivative_component = 0; // error change rate w.r.t time
float integral_component = 0; // total accumulated error
bool fill_n2_check = false;
TC_channel_out(OvenChanStatusEnum.all_off); // start with all oven channels off
air_channel_out(AirChanStatusEnum.air_off); //Start with air switched off
while (oven_check == 1)
{
if (CoolMethod_copy == "1")
{
// Flow high pressure nitrogen for like 10 seconds to fill
// the oven cavity with nitrogen
if (fill_n2_check == false)
{
air_channel_out(AirChanStatusEnum.high_n2);
Thread.Sleep(1000);
count++;
if (count >= 10)
{
fill_n2_check = true;
count = 0;
}
else
continue;
}
// Low pressure N2 trickle begins
air_channel_out(AirChanStatusEnum.low_n2);
}
// CONTROL HERE !!! ///////////// HEATING BEGINS !!! //////////
Heat_Time = DateTime.Now;
if (PID_LogData.Max() <= (0.80 * Convert.ToInt32(MaxTemp.Text)))
{
TC_channel_out(OvenChanStatusEnum.oven_on);
if (HeatingStarted == false) // Reach 80% temp. with
{ // just direct heating
HeatingStarted = true;
HeatingStopped = false;
HeatingStopped_logged = false;
}
}
else if (MaxTempReached == false)
{
// The deivative component is degrees / second error change
// rate. Let's attempt to keep it at error * 0.01 for now
if (derivative_component < current_error * 0.01)
TC_channel_out(OvenChanStatusEnum.oven_on);
else
TC_channel_out(OvenChanStatusEnum.oven_off);
if (current_error <= 0)
{
MaxTempReached = true;
}
}
else
TC_channel_out(OvenChanStatusEnum.oven_off);
///////////////////////////////////////////////////////////////
for (int i = 0; i < MAX_CHANCOUNT; i++)
{
RetVal = daq.TIn(i, TempScale.Celsius,
out PID_LogData[i], ThermocoupleOptions.Filter);
if (RetVal.Value != 0)
PID_LogData[i] = 0;
}
current_error = PID_max_temp - PID_LogData.Max();
time_slice = (float)DateTime.Now.Subtract(Heat_Time).TotalSeconds;
integral_component += current_error;
derivative_component = (prev_error - current_error) /
(time_slice);
prev_error = current_error;
count++;
}
TC_channel_out(OvenChanStatusEnum.oven_off);
}
// This function changes CHANCOUNT, by detecting the actual number of
// working thermocouple inputs connected to the USB-TC board.
private void DetectThermoCoupleInputs()
{
MccBoard daq = new MccDaq.MccBoard(BoardNum);
MccDaq.ErrorInfo RetVal;
CHANCOUNT = MAX_CHANCOUNT;
NUM_WALLCOUNT = 2;
float[] temp = new float[MAX_CHANCOUNT];
try
{
for (int i = 0; i < MAX_CHANCOUNT; i++)
{
RetVal = daq.TIn(i, TempScale.Celsius,
out temp[i], ThermocoupleOptions.Filter);
if (RetVal.Value != 0)
{
CHANCOUNT--;
((CheckBox)this.Controls["Channel" +
i.ToString("#0") + "CheckBox"]).Checked = false;
((CheckBox)this.Controls["Channel" +
i.ToString("#0") + "CheckBox"]).Enabled = false;
if (i == (int)TemperatureVsTimeDataSeriesEnum.Inner ||
i == (int)TemperatureVsTimeDataSeriesEnum.Outer)
{
NUM_WALLCOUNT--;
}
}
else
{
((CheckBox)this.Controls["Channel" +
i.ToString("#0") + "CheckBox"]).Checked = true;
((CheckBox)this.Controls["Channel" +
i.ToString("#0") + "CheckBox"]).Enabled = true;
}
}
NumThermocouplesDetectedTextBox.Text = " " + CHANCOUNT.ToString();
return;
}
catch(Exception e)
{
MessageBox.Show(
String.Format(
"ThermoCouple_Finder has encountered an unexpected error!{0}" +
"Error Message: {1}{0}" +
"Error Source: {2}{0}" +
"Stack Trace: {3}{0}",
Environment.NewLine,
e.Message,
e.Source,
e.StackTrace)
, " " + "ERROR!");
return;
}
}
private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
{
MccDaq.ErrorInfo RetVal;
int BoardNum = 0;
//locate the USB-TC
BoardNum = GetBoardNum(DEVICE);
if (BoardNum == -1)
{
MessageBox.Show("No USB-{0} detected!", DEVICE);
return; //exit program
}
else
{
MccBoard daq = new MccDaq.MccBoard(BoardNum);
float setTemp = (float)Convert.ToDouble(desiredTemp.Text);
bool targetTemp = false;
int allSamples = 0;
float[] tempData = new float[NUM_CHANNELS];
Stopwatch stopWatch = new Stopwatch();
stopWatch.Start();
string[] filePath = new string[NUM_CHANNELS];
StringBuilder[] fileString = new StringBuilder[NUM_CHANNELS];
for (int j = 0; j < NUM_CHANNELS; j++)
{
string fileDateTime = string.Format("_{0:yyyy-MM-dd_hh-mm}",
DateTime.Now);
filePath[j] = "Channel" + j + fileDateTime + ".csv";
fileString[j] = new StringBuilder();
fileString[j].AppendLine(string.Format("Channel{0}", j));
fileString[j].AppendLine(string.Format("Time,Elapsed Time,Temperature (C)"));
}
while (temp_Read == true && targetTemp == false)
{
for (int j = 0; j < NUM_CHANNELS; j++)
{
RetVal = daq.TIn(j, TempScale.Celsius, out tempData[j], ThermocoupleOptions.Filter);
IsError(RetVal);
// Get the elapsed time as a TimeSpan value.
TimeSpan ts = stopWatch.Elapsed;
string elapsedTime = String.Format("{0:00}:{1:00}:{2:00}.{3:00}",
ts.Hours, ts.Minutes, ts.Seconds,
ts.Milliseconds / 10);
fileString[j].AppendLine(string.Format("{0},{1},{2}", DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fff"), elapsedTime, tempData[j].ToString("0.000").PadLeft(10)));
Console.WriteLine("The temperature is on channel {0}" + " is: {1} " + "at elasped time {2} current time {3} ", j, tempData[j].ToString("0.000").PadLeft(10), elapsedTime, DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fff"));
}
for (int j = 0; j < NUM_CHANNELS; j++)
{
if ((float)tempData[j] >= setTemp)
{
allSamples++;
}
}
this.Invoke((MethodInvoker)delegate()
{
this.textBox1.Text = tempData[0].ToString("0.000");
this.textBox2.Text = tempData[1].ToString("0.000");
this.textBox3.Text = tempData[2].ToString("0.000");
this.textBox4.Text = tempData[3].ToString("0.000");
this.textBox5.Text = tempData[4].ToString("0.000");
this.textBox6.Text = tempData[5].ToString("0.000");
this.textBox7.Text = tempData[6].ToString("0.000");
this.textBox8.Text = tempData[7].ToString("0.000");
});
if (allSamples == NUM_CHANNELS)
{
targetTemp = true;
this.Invoke((MethodInvoker)delegate()
{
this.start_button.Enabled = true;
this.desiredTemp.Enabled = true;
this.stop_button.Enabled = false;
});
}
else
{
allSamples = 0;
}
//System.Threading.Thread.Sleep(0); //max rate is 2Hz or 500mS per read.
}
for (int j = 0; j < NUM_CHANNELS; j++)
{
File.WriteAllText(filePath[j].ToString(), fileString[j].ToString());
}
}
}
// Logging function
public void update_log()
{
MccBoard daq = new MccDaq.MccBoard(BoardNum);
MccDaq.ErrorInfo RetVal;
float[] LogData = new float[NumSamples];
System.TimeSpan TimeSpan = new System.TimeSpan();
int interval = (int)(float.Parse(LogIntervalBox.Text)*1000);
string text1 = "Time (in hours),";
for (int i = 1; i <= NumSamples; i++)
{
text1 += this.Controls["NameBox" + i].Text + ",";
text1 += this.Controls["NameBox" + i].Text + " Frozen?";
if (i < NumSamples)
{
text1 += ",";
}
}
using (StreamWriter sw = File.AppendText(directory))
{
sw.WriteLine(text1);
}
while (start_check != 0)
{
TimeSpan = DateTime.Now.Subtract(Start_Time);
string text2 = TimeSpan.TotalHours.ToString() + ",";
for (int i = 0; i < NumSamples; i++)
{
RetVal = daq.TIn(i, TempScale.Celsius,
out LogData[i], ThermocoupleOptions.Filter);
text2 += LogData[i].ToString() + ",";
if (SamplesStates[i] == 0)
{
text2 += "-";
}
else if (SamplesStates[i] == 1)
{
text2 += "No";
}
else
{
text2 += "Yes";
}
if (i < NumSamples - 1)
{
text2 += ",";
}
}
using (StreamWriter sw = File.AppendText(directory))
{
sw.WriteLine(text2);
}
Thread.Sleep(interval);
}
}
// This function updates the GUI's temperature readout and graphs
public void update_gui()
{
while (start_check != 3)
{
float[] TempData = new float[MAX_CHANCOUNT];
MccBoard daq = new MccDaq.MccBoard(BoardNum);
MccDaq.ErrorInfo RetVal;
Update_Temperature update_temp_del = new
Update_Temperature(update_gui_helper);
for (int i = 0; i < MAX_CHANCOUNT; i++)
{
RetVal = daq.TIn(i, TempScale.Celsius,
out TempData[i],
ThermocoupleOptions.Filter);
}
Invoke(update_temp_del, TempData);
Thread.Sleep(500);
}
}
// This function changes CHANCOUNT, by detecting the actual number of
// working thermocouple inputs connected to the USB-TC board.
public void TC_finder()
{
MccBoard daq = new MccDaq.MccBoard(BoardNum);
MccDaq.ErrorInfo RetVal;
CHANCOUNT = MAX_CHANCOUNT;
float[] temp = new float[MAX_CHANCOUNT];
try
{
for (int i = 0; i < MAX_CHANCOUNT; i++)
{
RetVal = daq.TIn(i, TempScale.Celsius,
out temp[i], ThermocoupleOptions.Filter);
if (RetVal.Value != 0)
{
CHANCOUNT--;
}
}
if (CHANCOUNT <= 0)
{
MessageBox.Show("No thermocouples detected!", " " + "ERROR!");
return;
}
NumThermocouplesBox.Text = " " + CHANCOUNT.ToString();
return;
}
catch
{
MessageBox.Show("Function TC_finder has an error!", " " + "ERROR!");
return;
}
}
// Logging function
public void update_log()
{
MccBoard daq = new MccDaq.MccBoard(BoardNum);
MccDaq.ErrorInfo RetVal;
float[] LogData = new float[NumSamples];
System.TimeSpan TimeSpan = new System.TimeSpan();
int interval = (int)(float.Parse(LogIntervalBox.Text) * 1000);
string text1 = "Time (in hours),";
for (int i = 1; i <= NumSamples; i++)
{
text1 += this.Controls["NameBox" + i].Text + ",";
text1 += this.Controls["NameBox" + i].Text + " Frozen?";
if (i < NumSamples)
{
text1 += ",";
}
}
using (StreamWriter sw = File.AppendText(directory))
{
sw.WriteLine(text1);
}
while (start_check != 0)
{
TimeSpan = DateTime.Now.Subtract(Start_Time);
string text2 = TimeSpan.TotalHours.ToString() + ",";
for (int i = 0; i < NumSamples; i++)
{
RetVal = daq.TIn(i, TempScale.Celsius,
out LogData[i], ThermocoupleOptions.Filter);
text2 += LogData[i].ToString() + ",";
if (SamplesStates[i] == 0)
{
text2 += "-";
}
else if (SamplesStates[i] == 1)
{
text2 += "No";
}
else
{
text2 += "Yes";
}
if (i < NumSamples - 1)
{
text2 += ",";
}
}
using (StreamWriter sw = File.AppendText(directory))
{
sw.WriteLine(text2);
}
Thread.Sleep(interval);
}
}
