private void btnMbSend_Click(object sender, EventArgs e)
{
var sd = ModBus.HexStrToHexByte(txtMbData.Text.Trim());//开
_serverSocket.Send(sd, sd.Length, 0);
ShowMsg("已发送：" + txtMbData.Text.Trim());
}
private static string WriteRead(string hexdata, Socket serverSocket)
{
byte[] recByte = new byte[1024];
var sd = ModBus.HexStrToHexByte(hexdata);//开
serverSocket.Send(sd, sd.Length, 0);
int bytes = serverSocket.Receive(recByte, recByte.Length, 0);
var rcvbt1 = new byte[bytes];
Array.Copy(recByte, 0, rcvbt1, 0, bytes);
var rst = ModBus.HexByteToHexStr(rcvbt1);
var s = rst.Replace("7777772E7573722E636E", "");
if (s == "")//排除第一个空
{
bytes = serverSocket.Receive(recByte, recByte.Length, 0);
rcvbt1 = new byte[bytes];
Array.Copy(recByte, 0, rcvbt1, 0, bytes);
rst = ModBus.HexByteToHexStr(rcvbt1);
s = rst.Replace("7777772E7573722E636E", "");
}
return(s);
}