private void writeBtn_Click(object sender, EventArgs e)
        {
            ushort w1 = 0;
            ushort w2 = 0;

            try
            {
                ulong       u  = ConvertFuncs.StrToULong(longTextBox.Text);
                FloatStruct fs = new FloatStruct();
                fs.ULong = u;
                w1       = fs.Word1;
                w2       = fs.Word2;
            }
            catch
            {
                ErrorMessage(texts[9]);
                return;
            }

            ushort Addr = 0;

            if (!CheckAddr(out Addr))
            {
                ErrorMessage(texts[6]);
                return;
            }

            serialPort.SetDataRTU(Addr, WriteDataRecieved, RequestPriority.Normal, w1, w2);
        }
 private void textBox2_TextChanged(object sender, EventArgs e)
 {
     if ((!longTextBox.Focused) || nowReading)
     {
         return;
     }
     try
     {
         ulong       u  = ConvertFuncs.StrToULong(longTextBox.Text);
         FloatStruct fs = new FloatStruct();
         fs.ULong          = u;
         floatTextBox.Text = fs.Float.ToString();
     }
     catch
     {
     }
 }