public async Task Open()
{
if (Status == ModbusServerStatus.Initialled)
{
try
{
Status = ModbusServerStatus.Opening;
string aqs = SerialDevice.GetDeviceSelector(portName);
var dis = await DeviceInformation.FindAllAsync(aqs);
serialPort = await SerialDevice.FromIdAsync(dis[0].Id);
serialPort.WriteTimeout = TimeSpan.FromMilliseconds(WRITE_TIMEOUT);
serialPort.ReadTimeout = TimeSpan.FromMilliseconds(READ_TIMEOUT);
serialPort.BaudRate = BAUD_RATE;
serialPort.Parity = SERIAL_PARITY;
serialPort.StopBits = SERIAL_STOP_BIT_COUNT;
serialPort.DataBits = DATA_BITS;
serialPort.Handshake = SERIAL_HANDSHAKE;
readCancellationTokenSource = new CancellationTokenSource();
listen(1024);
Status = ModbusServerStatus.Opened;
}
catch (Exception ex)
{
throw ex;
}
}
}
public void Close()
{
if (serialPort != null)
{
serialPort.Dispose();
}
serialPort = null;
Status = ModbusServerStatus.None;
}
public ModbusServer(string portName)
{
this.portName = portName;
Status = ModbusServerStatus.Initialled;
}
public void Cancel()
{
if (readCancellationTokenSource != null)
{
if (!readCancellationTokenSource.IsCancellationRequested)
{
readCancellationTokenSource.Cancel();
}
}
Status = ModbusServerStatus.Closed;
}
