private void reconnect()
{
if (Properties.Settings.Default.CommPort != "")
{
try
{
if (mm != null)
{
mm.Disconnect();
}
}
catch (Exception) { }
try
{
mm = new ModbusMasterSerial(ModbusSerialType.RTU, Properties.Settings.Default.CommPort, 19200, 8, Parity.None, StopBits.One, Handshake.None);
setCommPortMenu(Properties.Settings.Default.CommPort);
mm.RxTimeout = 500;
mm.Connect();
commStatus.Text = "COMM OK";
}
catch (Exception) {
commStatus.Text = "COMM ERR";
}
}
}
/// <summary>
/// When the application closes, save settings and close serial port.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void FormModbus_FormClosed(object sender, FormClosedEventArgs e)
{
// Close the Modbus device.
_mbMaster?.Disconnect();
// Update application settings from the form.
Properties.Settings.Default.Port = comboBoxSerialPort.Text;
Properties.Settings.Default.BaudRate = Convert.ToUInt16(comboBoxBaudRate.Text);
Properties.Settings.Default.StopBits = Convert.ToUInt16(comboBoxStopBits.Text);
Properties.Settings.Default.Parity = comboBoxParity.Text;
Properties.Settings.Default.Mode = comboBoxMode.Text;
Properties.Settings.Default.Address = Convert.ToUInt16(textBoxDeviceAddressDecimal.Text);
// Store the current values of the application settings properties.
// If this call is omitted, then the settings will not be saved after the program quits.
Properties.Settings.Default.Save();
}