private void handleModbusReadRequest(ushort startAdd, ushort nReg, ushort [] rxBuf)
{
int rxReg = -1;
try
{
rxReg = mrAccess.readModbusRegister(startAdd, nReg, rxBuf);
if (rxReg == -1)
{
switch (rxBuf[0])
{
case 1:
lblMBException.Content = "ILLEGAL FUNCTION";
break;
case 2:
lblMBException.Content = "ILLEGAL DATA ADDRESS";
break;
case 3:
lblMBException.Content = "ILLEGAL DATA VALUE";
break;
case 4:
lblMBException.Content = "SLAVE DEVICE FAILURE";
break;
case 6:
lblMBException.Content = "SLAVE DEVICE BUSY";
break;
default:
lblMBException.Content = rxBuf[0].ToString();
break;
}
}
else
{
lblMBException.Content = "Success !";
modbusResponseGrid[] msGrid = new modbusResponseGrid[nReg];
for (int i = 0; i < nReg; i++)
{
msGrid[i] = new modbusResponseGrid();
msGrid[i].regAdd = (startAdd + i).ToString();
msGrid[i].val = rxBuf[i].ToString();
msGrid[i].valHex = utility.U16ToHex(rxBuf[i]);
grdModbus.Items.Add(msGrid[i]);
}
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}
private void txtEnterValDone_KBLostFocus(object sender, KeyboardFocusChangedEventArgs e)
{
if (utility.validateIntegerTextBox(txtVal.Text.ToString()) == false)
{
MessageBox.Show("please enter only 0-9 integer value");
txtVal.Text = "0";
}
else
{
if (txtVal.Text.ToString() != "")
{
ushort val = Convert.ToUInt16(txtVal.Text);
txtValHex.Text = utility.U16ToHex(val).ToString();
}
}
}