private void CheckPortOpen()
{
if (_hPort == 0)
{
throw ExceptionSafetyController.Create(ErrorCodeSafetyController.SerialPortOpenError, _ErrorMessage);
}
}
public void ClosePort()
{
try
{
if (_hPort != 0)
{
serialPort.Close();
_hPort = 0;
}
}
catch (Win32Exception)
{ throw ExceptionSafetyController.Create(ErrorCodeSafetyController.INTERNAL_ERR, _ErrorMessage); }
}
// Methods -------------------------------------------------------------
public void OpenPort(String port, int baud, int parity, int dataBits, int stopBits)
{
_port = port;
try
{
if (_hPort == 0)
{
if (serialPort == null)
{
serialPort = new SerialPort(port, baud);
serialPort.Encoding = System.Text.Encoding.GetEncoding(437);
serialPort.ReadTimeout = Rfid_TimeOut;
serialPort.DataBits = dataBits;
serialPort.StopBits = StopBits.One;
serialPort.Parity = Parity.Even;
serialPort.NewLine = "\r";
serialPort.DtrEnable = true;
serialPort.DataReceived += new System.IO.Ports.SerialDataReceivedEventHandler(this.serialPort_DataReceived);
}
if (!serialPort.IsOpen)
{
serialPort.Open();
if (serialPort.IsOpen)
{
/*Clear Serial Port Buffer*/
serialPort.DiscardInBuffer();
serialPort.DiscardOutBuffer();
_hPort = 1;
}
}
}
//////
CheckPortOpen();
}
catch (Win32Exception)
{ throw ExceptionSafetyController.Create(ErrorCodeSafetyController.INTERNAL_ERR, _ErrorMessage); }
}
public static ExceptionSafetyController Create(ErrorCodeSafetyController errorCode, string message)
{
string errorMessage = "";
Severity severity = Severity.None;
switch (errorCode)
{
case ErrorCodeSafetyController.Unknown:
errorMessage = "Unknown error.";
severity = Severity.Error;
break;
case ErrorCodeSafetyController.MEMORY_ERR:
errorMessage = "Memory error. The internal data structures couldn't be allocated.";
severity = Severity.Error;
break;
case ErrorCodeSafetyController.RANGE_ERR:
errorMessage = "Parameter out of range error.";
severity = Severity.Error;
break;
case ErrorCodeSafetyController.NOT_FOUND:
errorMessage = "Station code not found error.";
severity = Severity.Error;
break;
case ErrorCodeSafetyController.NOT_NEXT:
errorMessage = "Station is out of sequence error.";
severity = Severity.Error;
break;
case ErrorCodeSafetyController.CHECKSUM_ERR:
errorMessage = "Check sum error found on received data from Safety Controller.";
severity = Severity.Error;
break;
case ErrorCodeSafetyController.WRITECOUNT_ERR:
errorMessage = "The maximum number of write cycles has been reached on the RFID chip for the tray at the " + message + ".";
severity = Severity.Error;
break;
//case ErrorCodeSafetyController.INVALID_ID:
// break;
case ErrorCodeSafetyController.WRITE_VERIFY_ERR:
errorMessage = "Read after write failure.";
severity = Severity.Error;
break;
case ErrorCodeSafetyController.TIMEOUT_ERR:
errorMessage = "No data was received error.";
severity = Severity.Error;
break;
case ErrorCodeSafetyController.ASYNC_BUSY:
errorMessage = "An asynchronous operation is already running.";
severity = Severity.Error;
break;
case ErrorCodeSafetyController.ASYNC_FAIL:
errorMessage = "The asynchronous operation failed.";
severity = Severity.Error;
break;
case ErrorCodeSafetyController.NO_DATA:
errorMessage = " Data carrier missing.";
severity = Severity.Error;
break;
case ErrorCodeSafetyController.INTERNAL_ERR:
errorMessage = "DLL internal error.";
severity = Severity.Error;
break;
case ErrorCodeSafetyController.SerialPortError:
errorMessage = "ErrorCodeSafetyController on port " + message + ". Check that all cables are connected and the port is not being used by another application.";
break;
case ErrorCodeSafetyController.SerialPortOpenError:
errorMessage = "ErrorCodeSafetyController opening port " + message + ". Check that it is not being used by another application.";
break;
case ErrorCodeSafetyController.WRITEPROTECT_ERR:
errorMessage = "RFID Write Protect Error.";
break;
default:
errorMessage = "Omron internal error reading/writing the RFID tag on the tray at the " + message + ".";
severity = Severity.Error;
break;
}
ExceptionSafetyController ex = new ExceptionSafetyController(errorMessage);
ex.severity = severity;
ex._errorCode = errorCode;
return(ex);
}
