private void read32_Click(object sender, EventArgs e)
{
var thisMbo = MBLst[3];
var plcRequest = new PlcRequest(false, true);
plcRequest.requestBytes = new List <byte>(thisMbo.readCmndMsg);
Read32BitMessage(plcRequest);
}
private void readInFloat_Click(object sender, EventArgs e)
{
var thisMob = MBLst[4];
var plcRequst = new PlcRequest(true, true);
plcRequst.requestBytes = new List <byte>(thisMob.readCmndMsg);
Read32BitMessage(plcRequst);
}
public void ReadFloatMessage()
{
var thisMbo = MBLst[1];
var plcRequest = new PlcRequest(true, false);
plcRequest.requestBytes = new List <byte>(thisMbo.readCmndMsg);
Read32BitMessage(plcRequest);
}
public void Read16BitMessage()
{
var thisMbo = MBLst[2];
var plcRequest = new PlcRequest(false, false);
plcRequest.requestBytes = new List <byte>(thisMbo.readCmndMsg);
SerialComms.sendMessage(plcRequest);
}
public void sendMessage(PlcRequest plcRequest)
{
if (_serialPort != null)
{
if (!_serialPort.IsOpen)
{
checkConns();
}
List <byte> requestBytes = plcRequest.requestBytes;
if (requestBytes.Count > 0)
{
byte[] bytesToSend = new byte[requestBytes.Count + 2]; // the 2 is for the CRC we'll add at the end
String sMessageSent = "";
UInt16 crc16 = 0xFFFF;
for (int i = 0; i < requestBytes.Count; i++)
{
Byte byteFromArray = (Byte)requestBytes[i];
bytesToSend[i] = byteFromArray;
crc16 = CalculateCRC(byteFromArray, crc16);
sMessageSent += bytesToSend[i].ToString("X").PadLeft(2, '0') + " ";
}
bytesToSend[bytesToSend.Count() - 2] = (Byte)(crc16 % 0x100);
sMessageSent += bytesToSend[bytesToSend.Count() - 2].ToString("X").PadLeft(2, '0') + " ";
bytesToSend[bytesToSend.Count() - 1] = (Byte)(crc16 / 0x100);
sMessageSent += bytesToSend[bytesToSend.Count() - 1].ToString("X").PadLeft(2, '0') + " ";
form.messageSent.Text = sMessageSent;
try
{
reqType = new ReqType(plcRequest.isFloat, plcRequest.isSigned);
_serialPort.Write(bytesToSend, 0, bytesToSend.Length);
}
catch
{
}
}
}
}
public void Read32BitMessage(PlcRequest plcRequest)
{
SerialComms.sendMessage(plcRequest);
}