/// <summary>
/// Finite state machine to go through the calibration process having 3 states
/// State 0 : Start
/// State 1 : Adjust/set zero
/// State 2 : Do calibration/Write calibration weight to WTX
/// </summary>
private void AdjustmentStateMachine()
{
//Switch depending on the current calibration step described by State
switch (_state)
{
case 0: //start
try
{
_calibrationWeightWithComma = txtCalibrationWeight.Text.Replace(".", ","); // Accept comma and dot
_calibrationWeight = double.Parse(_calibrationWeightWithComma);
txtCalibrationWeight.Enabled = false;
txtInfo.Text = _calibrationWeight.ToString();
}
catch (FormatException)
{
txtInfo.Text = "Wrong format!" + Environment.NewLine + "Accepted format *,***";
break;
}
catch (OverflowException)
{
txtInfo.Text = "Overflow!";
break;
}
txtInfo.Text = "Unload Scale!";
cmdAdjust.Text = "Adjust Zero";
cmdCancel.Text = "<Back";
_state = 1;
break;
case 1: // Adjust/set zero
txtInfo.Text = "Adjusting zero in progess.";
Application.DoEvents();
_wtxDevice.AdjustZeroSignal();
txtInfo.Text = "Zero load measured." + Environment.NewLine + "Put weight on scale.";
cmdAdjust.Text = "Calibrate";
_state = 2;
break;
case 2: // Do calibration/Write calibration weight to WTX
txtInfo.Text = "Calibration in progress.";
Application.DoEvents();
if (_wtxDevice.AdjustNominalSignalWithCalibrationWeight(_calibrationWeight))
{
txtInfo.Text = "Calibration finished succesfully";
}
else
{
txtInfo.Text = "Calibration finished incomplete";
}
cmdAdjust.Text = "Close";
_state = 3;
break;
default: //close window
_state = 0;
Close();
break;
}
}
} // End method Connect()
private static void MenuCases()
{
// This while loop is repeated till the user enters 'e' (=e meaning exit). After the timer interval the register of the device is read out.
// In the while-loop the user can select commands, which are send immediately to the device.
while (_valueExitapplication.KeyChar != 'e')
{
//_isCalibrating = false;
_valueOutputwords = Console.ReadKey();
int valueOutput = Convert.ToInt32(_valueOutputwords.KeyChar);
switch (_valueOutputwords.KeyChar)
{
case '0': _wtxDevice.Tare(); break; // Taring
case '1': _wtxDevice.SetGross(); break; // Gross/Net
case '2': _wtxDevice.Zero(); break; // Zeroing
case '3': _wtxDevice.AdjustZeroSignal(); break; // Adjust zero
case '4': _wtxDevice.AdjustNominalSignal(); break; // Adjust nominal
case '5': _wtxDevice.RecordWeight(); break; // Record Weight
// 'c' for writing on multiple registers, which is necessary for the calibration.
case 'c': // Calculate Calibration
CalculateCalibration();
break;
case 'w': // Calculation with weight
CalibrationWithWeight();
break;
// Change connection from Jetbus to Modbus or from Modbus to Jetbus:
case 'j':
if (_wtxDevice != null) // Necessary to check if the object of BaseWtDevice have been created and a connection exists.
{
_wtxDevice.Connection.Disconnect();
_wtxDevice = null;
}
Thread.Sleep(WAIT_DISCONNECT); // Wait for 2 seconds till the disconnection request is finished.
if (connectiontype == ConnectionType.Modbus)
{
connectiontype = ConnectionType.Jetbus;
}
else
if (connectiontype == ConnectionType.Jetbus)
{
connectiontype = ConnectionType.Modbus;
}
InitializeConnection();
break;
default: break;
} // end switch-case
_valueExitapplication = Console.ReadKey();
if (_valueExitapplication.KeyChar == 'e')
{
break;
}
} // end while
} // end method MenuCases()