public ReadedParams ReadParams()
{
try
{
Modbus.READ_INPUT_REGS_RESP resp = _modbus.ReadInputRegisters(0, 4);
return(new ReadedParams()
{
F = resp.GetInpRegsFLOAT(0),
U = resp.GetInpRegsFLOAT(2)
});
}
catch (TimeoutException)
{
return(null);
}
}
private void backgroundReader_DoWork(object sender, DoWorkEventArgs e)
{
ReaderParams param = (ReaderParams)e.Argument;
SerialPort port = null;
try
{
port = new SerialPort(param.Port, param.Baudrate, Parity.None, 8, StopBits.One);
port.WriteTimeout = port.ReadTimeout = 250;
port.Open();
Modbus modbus = new Modbus(port, param.ModbusID);
modbus.WriteSingleRegister(34, 123);
modbus.WriteSingleRegister(35, (ushort)(param.Type == AnalogSensorType.TypeAnalog ? 0 : 1));
while (!backgroundReader.CancellationPending)
{
try
{
Modbus.READ_INPUT_REGS_RESP resp = modbus.ReadInputRegisters(0, 6);
float val = 0.0f;
if (param.Type == AnalogSensorType.TypeAnalog)
{
val = resp.GetInpRegsFLOAT(2);
}
else
{
val = resp.GetInpRegsFLOAT(0);
}
float curr = resp.GetInpRegsFLOAT(4) * 1000;
Invoke(new Action <string>(a => lbValue.Text = a), string.Format("{0:0.00}", val));
Invoke(new Action <string>(a => lbCurrent.Text = a), ((int)(curr)).ToString());
connectStatus = ConnectionStatus.ConnectionOn;
Thread.Sleep(400);
}
catch (TimeoutException)
{
//выходим
/*e.Result = new ReaderResult()
* {
* Status = ReaderResult.ReaderStatus.ReaderError,
* Message = currentTranslation.modbusNoAnswerError
* };
*
* return;*/
Invoke(new Action <string>(a => lbValue.Text = a), string.Format("{0:0.00}", 0.0f));
Invoke(new Action <string>(a => lbCurrent.Text = a), "0");
connectStatus = ConnectionStatus.ConnectionOff;
}
catch (Modbus.ModbusException ex)
{
string message = ex.Message;
switch (ex.Reason)
{
case Modbus.ModbusException.ExceptionReason.IllegalAddrException:
case Modbus.ModbusException.ExceptionReason.IllegalFuncException:
case Modbus.ModbusException.ExceptionReason.IllegalValueException:
message = currentTranslation.modbusIllegalError;
break;
case Modbus.ModbusException.ExceptionReason.CRCException:
message = currentTranslation.modbusCRCError;
break;
case Modbus.ModbusException.ExceptionReason.IDException:
message = currentTranslation.modbusHostIDError;
break;
case Modbus.ModbusException.ExceptionReason.LengthException:
message = currentTranslation.modbusBufferLenError;
break;
case Modbus.ModbusException.ExceptionReason.UnknownException:
message = currentTranslation.modbusUnknownError;
break;
}
e.Result = new ReaderResult()
{
Status = ReaderResult.ReaderStatus.ReaderError,
Message = message
};
return;
}
}
e.Result = new ReaderResult()
{
Status = ReaderResult.ReaderStatus.ReaderCancel
};
return;
}
catch (Exception ex)
{
e.Result = new ReaderResult()
{
Status = ReaderResult.ReaderStatus.ReaderError,
Message = ex.Message
};
return;
}
finally
{
if (port != null)
{
if (port.IsOpen)
{
port.Close();
}
}
}
}
