/// <summary>
/// Command code 42: Single discrete control.
/// </summary>
/// <param name="slaveStationNo">Slave Station No</param>
/// <param name="cmmdCode">Command Code</param>
/// <param name="runCode">Running Code</param>
/// <param name="mType">Memory Type</param>
/// <param name="discreteNo">Discrete No</param>
/// <param name="dType">Data Type</param>
public void WriteSingleDiscrete(int slaveStationNo, CommandCode cmmdCode, RunningCode runCode, MemoryType mType, ushort discreteNo, DataType dType)
{
try
{
string frame = this.GetMessageWriteSingleDiscrete(slaveStationNo, cmmdCode, runCode, mType, discreteNo, dType);
objSerialPort.WriteLine(frame);
// Read SerialPort
int sizeOfMessageReceiver = 9;
string buffReceiver = string.Empty;
DateTime startDateTime = DateTime.Now;
do
{
this.CheckBufferReceiver(buffReceiver);
buffReceiver = objSerialPort.ReadExisting();
System.Threading.Thread.Sleep(100);
} while (buffReceiver.Length < sizeOfMessageReceiver && (DateTime.Now.Subtract(startDateTime).TotalMilliseconds < objSerialPort.ReadTimeout));
string errorMsg = this.GetException(buffReceiver);
if (!string.IsNullOrEmpty(errorMsg) || !string.IsNullOrWhiteSpace(errorMsg))
{
throw new Exception(errorMsg);
}
}
catch (Exception ex)
{
throw ex;
}
}
/// <summary>
/// Command code 42: Single discrete control.
/// </summary>
/// <param name="slaveStationNo">Slave Station No</param>
/// <param name="cmmdCode">Command Code</param>
/// <param name="runCode">Running Code</param>
/// <param name="mType">Memory Type</param>
/// <param name="discreteNo">Discrete No</param>
/// <param name="dType">Data Type</param>
/// <returns>string</returns>
public string GetMessageWriteSingleDiscrete(int slaveStationNo, CommandCode cmmdCode, RunningCode runCode, MemoryType mType, ushort discreteNo, DataType dType)
{
string frame = string.Format("{0:X2}", slaveStationNo); // Slave station no.
frame += string.Format("{0:X2}", (byte)cmmdCode); // Command no.
frame += string.Format("{0}", (byte)runCode); // Runiing code.
switch (dType)
{
case DataType.BOOL:
frame += string.Format("{0}{1:X4}", mType, discreteNo); // Discrete No.
break;
default:
throw new InvalidOperationException("Data type is invalid");
}
frame += CheckSum(frame);
return(Convert.ToChar(STX) + frame + Convert.ToChar(EXT));
}
