private void btnWriteRegisters_Click(object sender, EventArgs e)
{
if (!ModbusTool.bConnect)
{
MessageBox.Show("请先打开串口!");
return;
}
txtWrong.Text = "";
try
{
String str = txtWrite.Text.ToString();
String data = str.Replace(" ", "");
if (data.Length % 4 != 0)
{
data = "000" + data;
}
int dataCount = data.Length / 4;
int[] arr = new int[dataCount];
ushort[] uArr = new ushort[dataCount];
for (int i = dataCount; i > 0; i--)
{
uArr[dataCount - i] = (Convert.ToUInt16(data.Substring(data.Length - 4 * i, 4), 16));
}
//for (int i = 0; i < dataCount; i++)
//{
// Buffer.BlockCopy(arr, 4 * i, uArr, 4 * i, 4);
//}
//List<ushort> listData = new List<ushort>();
ushort startAddress;
try
{
startAddress = Convert.ToUInt16(txtStartAddr.Text, 16);
}
catch (Exception)
{
MessageBox.Show("请输入正确的起始地址！");
return;
}
ModbusTool.WriteMultipleRegisters(startAddress, uArr);
}
catch (Exception ex)
{
string str = ex.Message;
txtWrong.Text = ex.ToString();
}
}
//发送一行数据，一行内容中包括地址和数据，如果不选择“第一列为地址”，则地址也作为数据发送
private int SendLine(int nLineId, bool bModbus, bool bWithAddress, bool bHex)
{
string address = ltStrAddress[nLineId - 1].Replace(" ", "");
String str = "";
String data = "";
if (ltStr.Count >= nLineId)
{
str = ltStr[nLineId - 1].Replace(" ", "");
}
if (bWithAddress)
{
data = str;
}
else
{
data = address + str; //如果不选择“第一列为地址”，则地址也作为数据发送
}
if (bModbus)
{
if (data.Length % 2 != 0)
{
data = "0" + data;
}
if (data.Length % 4 != 0) //发送以字为单位，即ushort
{
data = "00" + data;
}
int dataCount = (data.Length) / 2;
ushort[] uArr = new ushort[dataCount / 2];
string subStr;
for (int i = 0; i < dataCount / 2; i++)
{
subStr = data.Substring(4 * i, 4);
uArr[i] = Convert.ToUInt16(subStr, 16);
}
ushort startAddress = 0;
if (bWithAddress)
{
try
{
startAddress = Convert.ToUInt16(address, 16);
}
catch (Exception)
{
return(2);
}
}
else
{
startAddress = RegisterAddress;
}
ModbusTool.WriteMultipleRegisters(startAddress, uArr);
if (txtSend.Text.Length > 1000000)
{
txtSend.Text = "";
}
if (bShowSend)
{
if (bWithAddress)
{
data = address + "," + data;
}
txtSend.AppendText(data + "\r\n");
txtSend.ScrollToCaret();
}
}
else //如果不是Modbus才考虑是否16进制发送
{
if (!bHex) //ASCII码发送Excel中内容
{
if (data.Length > 0)
{
ModbusTool.serialPort.Write(data);
if (txtSend.Text.Length > 1000000)
{
txtSend.Text = "";
}
if (bShowSend)
{
txtSend.AppendText(data + "\r\n");
txtSend.ScrollToCaret();
}
}
}
else
{
byte[] arr = null;
try
{
arr = StrToHexByte(data);
}
catch (Exception)
{
return(1);
}
if (data.Length > 0)
{
ModbusTool.SendAny(arr, 0, arr.Length);
if (txtSend.Text.Length > 1000000)
{
txtSend.Text = "";
}
if (bShowSend)
{
txtSend.AppendText(data + "\r\n");
txtSend.ScrollToCaret();
}
}
}
}
return(0);
}