public CalibrationForm(ActiveLoadDevice activeLoadDevice)
{
InitializeComponent();
this.activeLoadDevice = activeLoadDevice;
Calibration = activeLoadDevice.Calibration;
// current calibration data
if (Calibration.Current != null)
{
// copy current values to form
nuSetpointCurrent1.Value = (decimal)Calibration.Current.DeviceCurrentSetpoint[0];
nuSetpointCurrent2.Value = (decimal)Calibration.Current.DeviceCurrentSetpoint[1];
nuRealCurrent1.Value = (decimal)Calibration.Current.ActualCurrent[0];
nuRealCurrent2.Value = (decimal)Calibration.Current.ActualCurrent[1];
nuDeviceCurrent1.Value = (decimal)Calibration.Current.DeviceMeasuredCurrent[0];
nuDeviceCurrent2.Value = (decimal)Calibration.Current.DeviceMeasuredCurrent[1];
}
else
{
// default values
nuSetpointCurrent1.Value = (decimal)0.1;
nuSetpointCurrent2.Value = (decimal)1.0;
nuRealCurrent1.Value = nuSetpointCurrent1.Value;
nuRealCurrent2.Value = nuSetpointCurrent2.Value;
nuDeviceCurrent1.Value = nuSetpointCurrent1.Value;
nuDeviceCurrent2.Value = nuSetpointCurrent2.Value;
}
btApplyCurrent1.Enabled = true;
btApplyCurrent2.Enabled = false;
btReadCurrent1.Enabled = false;
btReadCurrent2.Enabled = false;
btRealCurrent1.Enabled = false;
btRealCurrent2.Enabled = false;
// voltage calibration data
if (Calibration.Voltage != null)
{
// copy current values to form
nuDeviceVoltage1.Value = (decimal)Calibration.Voltage.DeviceMeasuredVoltage[0];
nuDeviceVoltage2.Value = (decimal)Calibration.Voltage.DeviceMeasuredVoltage[1];
nuRealVoltage1.Value = (decimal)Calibration.Voltage.ActualVoltage[0];
nuRealVoltage2.Value = (decimal)Calibration.Voltage.ActualVoltage[1];
}
else
{
// default values
nuDeviceVoltage1.Value = 10;
nuDeviceVoltage2.Value = 30;
nuRealVoltage1.Value = nuDeviceVoltage1.Value;
nuRealVoltage2.Value = nuDeviceVoltage2.Value;
}
}
public static GraphForm GetForm(ActiveLoadDevice activeLoadDevice)
{
if (inst == null || inst.IsDisposed)
{
inst = new GraphForm(activeLoadDevice);
}
// set (new) active load device instance
inst.ActiveLoadDevice = activeLoadDevice;
return(inst);
}
private GraphForm(ActiveLoadDevice activeLoadDevice)
{
InitializeComponent();
this.ActiveLoadDevice = activeLoadDevice;
// fill interval combo box
cbInterval.DisplayMember = "Name";
cbInterval.ValueMember = "Value";
List <ComboBoxItem <int> > listIntervals = new List <ComboBoxItem <int> >();
listIntervals.Add(new ComboBoxItem <int>(100));
listIntervals.Add(new ComboBoxItem <int>(250));
listIntervals.Add(new ComboBoxItem <int>(500));
listIntervals.Add(new ComboBoxItem <int>(1000));
listIntervals.Add(new ComboBoxItem <int>(5000));
listIntervals.Add(new ComboBoxItem <int>(10000));
foreach (var item in listIntervals)
{
item.Name = item.Value + " ms";
}
cbInterval.DataSource = listIntervals;
// fill samples combo box
cbSamples.DisplayMember = "Name";
cbSamples.ValueMember = "Value";
List <ComboBoxItem <int> > listSamples = new List <ComboBoxItem <int> >();
listSamples.Add(new ComboBoxItem <int>(10));
listSamples.Add(new ComboBoxItem <int>(25));
listSamples.Add(new ComboBoxItem <int>(50));
listSamples.Add(new ComboBoxItem <int>(500));
listSamples.Add(new ComboBoxItem <int>(1000));
foreach (var item in listSamples)
{
item.Name = item.Value + " samples";
}
cbSamples.DataSource = listSamples;
}
private async void btAutoProbe_Click(object sender, EventArgs e)
{
// cancel running refresh task
if (ctsRefreshTask != null)
{
ctsRefreshTask.Cancel();
}
// close device
if (activeLoadDevice != null)
{
activeLoadDevice.Close();
connected = false;
btConnect.Text = "Connect";
}
// try to find all Active Load devices
activeLoadDevice = new ActiveLoadDevice();
btAutoProbe.Enabled = false;
string[] comPorts = await activeLoadDevice.FindDevicesAsync();
btAutoProbe.Enabled = true;
cbDevices.Items.Clear();
foreach (string comPort in comPorts)
{
cbDevices.Items.Add(comPort);
}
// select first device
if (cbDevices.Items.Count > 0)
{
cbDevices.SelectedIndex = 0;
}
}
private async void btConnect_Click(object sender, EventArgs e)
{
if (!connected)
{
if (cbDevices.SelectedIndex < 0)
{
MessageBox.Show("Connect a device and select it in the dropdown list.", "Device selection", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
// close device as a precaution (if it is open for some reason)
if (activeLoadDevice != null)
{
activeLoadDevice.Close();
}
// try to open specified device
activeLoadDevice = new ActiveLoadDevice(cbDevices.Text);
ctsRefreshTask = new CancellationTokenSource();
try
{
await activeLoadDevice.OpenAsync();
connected = true;
}
catch (UnexpectedResponseException)
{
MessageBox.Show("Device is probably not an Active Load device", "Unexpected response", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
catch (TimeoutException)
{
MessageBox.Show("Device is probably not an Active Load device", "Timeout", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString(), "Exception", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
// close device again if not successful above
if (!connected)
{
activeLoadDevice.Close();
}
}
else
{
// cancel running refresh task
if (ctsRefreshTask != null)
{
ctsRefreshTask.Cancel();
}
connected = false;
}
// update button text
if (connected)
{
btConnect.Text = "Disconnect";
gbProcessImage.Text = "Active load device (version: " + activeLoadDevice.Identity.Version + ")";
if (!activeLoadDevice.IsCalibrated)
{
MessageBox.Show("Device is not fully calibrated. Measurements and setpoints may be inaccurate. Consider calibration of device!", "Device calibration", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
// save COM port
Properties.Settings.Default.LastComPort = activeLoadDevice.PortName;
Properties.Settings.Default.Save();
calibrateToolStripMenuItem.Enabled = true;
showgraphToolStripMenuItem.Enabled = true;
// start asynchronous polling loop task
try
{
await RefreshProcessImageAsync();
}
catch
{
}
// polling task cancelled or error
btConnect.Text = "Connect";
// connection lost, disconnect and close device
if (activeLoadDevice != null)
{
activeLoadDevice.Close();
}
calibrateToolStripMenuItem.Enabled = false;
showgraphToolStripMenuItem.Enabled = false;
connected = false;
// close graph form if open
Form graphForm = Application.OpenForms["GraphForm"];
if (graphForm != null)
{
graphForm.Close();
}
}
else
{
btConnect.Text = "Connect";
}
}
