// Function code changed event
public void SelectindechangedfunctionCode(object sender, EventArgs e)
{
_functionCode = comboBoxFunctionCode.SelectedItem.ToString().Split(' ')[0];
switch (comboBoxFunctionCode.SelectedIndex)
{
case 0:
_datatype = "LED";
groupBoxDatatype.Enabled = false;
groupBoxFormat.Enabled = false;
buttonWriteMultiRegister.Enabled = true;
buttonWriteMultiRegister.Enabled = true;
break;
case 1:
_functionCode = "2";
_datatype = "LED";
groupBoxDatatype.Enabled = false;
groupBoxFormat.Enabled = false;
buttonWriteMultiRegister.Enabled = false;
break;
case 2:
groupBoxDatatype.Enabled = true;
groupBoxFormat.Enabled = true;
if (_datatype.Equals("LED"))
{
_datatype = "Float";
groupBoxDatatype.Enabled = true;
comboBoxFormat.SelectedIndex = 1;
}
buttonWriteMultiRegister.Enabled = true;
break;
case 3:
groupBoxDatatype.Enabled = true;
groupBoxFormat.Enabled = true;
buttonWriteMultiRegister.Enabled = false;
if (_datatype.Equals("LED"))
{
_datatype = "Float";
comboBoxDatatype.SelectedIndex = 4;
comboBoxFormat.SelectedIndex = 1;
}
break;
}
formBaseDataTable.changeFunctionCode(_functionCode);
formBaseDataTable.changeDataType(_datatype);
formBaseDataTable.UpdateData();
}
public bool receivedData(byte[] recBuf)
{
try
{
ushort receivedStartAddress, receivedTotalRegister, receivedFunctionCode;
int temp, receiveFrameSize = 0, recBufFunctionCode = 0;
var result = checkError(recBuf);
if (result)
{
return(false); //if exception is received.
}
temp = tcpBaseDataTable.baseTotalRegister;
recBufFunctionCode = (int)recBuf[7];
//comparing send and receive function code
if (recBufFunctionCode > 4 && recBufFunctionCode == tcpBaseDataTable.baseWriteFunctionCode)
{
receiveFrameSize = 3;
}
else if (recBufFunctionCode < 5 && recBufFunctionCode == int.Parse(tcpBaseDataTable.baseFunctionCode))
{
if (tcpBaseDataTable.baseFunctionCode.Contains("1") || tcpBaseDataTable.baseFunctionCode.Contains("2"))
{
receiveFrameSize = temp / 8;
if (temp % 8 != 0)
{
receiveFrameSize += 1;
}
}
else if (tcpBaseDataTable.baseFunctionCode.Contains("3") || tcpBaseDataTable.baseFunctionCode.Contains("4"))
{
receiveFrameSize = temp * 2;
}
}
else
{
f.AppendLog("Exception: Requested Function code does note match with received function code.");
return(false);
}
receiveFrameSize += 9;
if (receiveFrameSize != recBuf.Length)
{
f.AppendLog("Incomplete Data");
return(false);
}
receivedFunctionCode = recBuf[7]; //this is wrong
receivedStartAddress = (ushort)tcpBaseDataTable.baseStartAddress;
receivedTotalRegister = (ushort)tcpBaseDataTable.baseTotalRegister;
//if ((receivedStartAddress < tcpBaseDataTable.baseStartAddress) || (receivedStartAddress > (tcpBaseDataTable.baseStartAddress + tcpBaseDataTable.baseTotalRegister)))
//{
// MessageBox.Show(pa)
//}
//var controls = f.panel1.Controls.OfType<TextBox>().AsEnumerable<TextBox>();
//IEnumerable<TextBox> textBoxes =
// from control in controls
// where ((int.Parse(control.Name) > receivedStartAddress) && (int.Parse(control.Name) <= (receivedStartAddress + receivedTotalRegister)))
// select control;
switch (receivedFunctionCode)
{
case 1:
readMultipleCoilStatus(recBuf);
break;
case 2:
readMultipleCoilStatus(recBuf);
break;
case 3:
readMultipleRegister(recBuf);
break;
case 4:
readMultipleRegister(recBuf);
break;
case 5:
//MessageBox.Show("Write Single Coil");
break;
case 6:
//MessageBox.Show("Write Single Register");
break;
case 15:
//MessageBox.Show("Write Multi Coil");
break;
case 16:
//MessageBox.Show("Write Multi Register");
break;
//default:
// sendByte = new byte[9];
// Array.Copy(recBuf, 0, sendByte, 0, 7);
// sendByte[7] = 131;
// sendByte[8] = (byte)1;
// break
}
tcpBaseDataTable.UpdateData();
}
catch (Exception e)
{
MessageBox.Show("Exception while receiving data");
return(false); // not received correct data .
}
return(true);
}
public bool ReceivedData(byte[] recBuf)
{
try
{
ushort receivedStartAddress, receivedTotalRegister, receivedFunctionCode;
int temp, receiveFrameSize = 0, recBufFunctionCode = 0;;
var result = CheckError(recBuf);
if (result)
{
return(false); //if exception is received.
}
temp = serialBaseDataTable.baseTotalRegister;
recBufFunctionCode = (int)recBuf[1];
// Checking received bytes frame size
if (recBufFunctionCode > 4 && recBufFunctionCode == serialBaseDataTable.baseWriteFunctionCode)
{
receiveFrameSize = 3;
}
else if (recBufFunctionCode < 5 && recBufFunctionCode == int.Parse(serialBaseDataTable.baseFunctionCode))
{
if (serialBaseDataTable.baseFunctionCode.Equals("01") || serialBaseDataTable.baseFunctionCode.Equals("02"))
{
receiveFrameSize = temp / 8;
if (temp % 8 != 0)
{
receiveFrameSize += 1;
}
}
else if (serialBaseDataTable.baseFunctionCode.Equals("03") || serialBaseDataTable.baseFunctionCode.Equals("04"))
{
receiveFrameSize = temp * 2;
}
else
{
f.AppendLog("Exception: Requested Function code does note match with received function code.");
return(false);
}
}
receiveFrameSize += 5;
if (receiveFrameSize != recBuf.Length)
{
f.AppendLog("Incomplete Data");
return(false);
}
receivedFunctionCode = recBuf[1]; //this is wrong
receivedStartAddress = (ushort)serialBaseDataTable.baseStartAddress;
receivedTotalRegister = (ushort)serialBaseDataTable.baseTotalRegister;
switch (receivedFunctionCode)
{
case 1:
ReadMultipleCoilStatus(recBuf);
break;
case 2:
ReadMultipleCoilStatus(recBuf);
break;
case 3:
ReadMultipleRegister(recBuf);
break;
case 4:
ReadMultipleRegister(recBuf);
break;
case 5:
break;
case 6:
break;
case 15:
break;
case 16:
break;
}
serialBaseDataTable.UpdateData();
}
catch (Exception e)
{
f.AppendLog("Exception while receiving data");
return(false); // not received correct data .
}
return(true);
}
