private bool ConnectPLCUdp(ref string reStr)
{
try
{
lock (lockObj)
{
if (string.IsNullOrEmpty(this.connStr))
{
reStr = "PLC通信地址为空!";
return(false);
}
//this.connStr = plcAddr;
string[] splitStr = new string[] { ",", ";", ":", "-", "|" };
string[] strArray = this.connStr.Split(splitStr, StringSplitOptions.RemoveEmptyEntries);
if (strArray.Count() < 2)
{
isConnected = false;
}
string remoteIP = strArray[0];
int remotePort = int.Parse(strArray[1]);
if (udpClient == null)
{
udpClient = new UdpClient(9898);
}
this.udpRemotePoint = new IPEndPoint(IPAddress.Parse(remoteIP), remotePort);
UdpState udpReceiveState = new UdpState();
udpReceiveState.ipEndPoint = this.udpRemotePoint;
udpReceiveState.udpClient = udpClient;
udpClient.BeginReceive(UdpRecvCallback, udpReceiveState);
//if(udpRecvThread == null)
//{
// udpRecvThread = new Thread(UdpRecvProc);
// udpRecvThread.IsBackground = true;
// exitUdpRecv = false;
//}
//if (this.udpRecvThread.ThreadState == (ThreadState.Background | ThreadState.Unstarted))
//{
// udpRecvThread.Start();
//}
//pauseUdpRecv = false;
reStr = "PLC连接成功";
isConnected = true;
this.netFailTimes = 0; //读写失败次数清零
return(true);
}
}
catch (Exception ex)
{
reStr = ex.ToString();
return(false);
}
}
private void UdpRecvCallback(IAsyncResult iar)
{
UdpState udpState = iar.AsyncState as UdpState;
if (iar.IsCompleted)
{
Byte[] recBytes = udpState.udpClient.EndReceive(iar, ref udpState.ipEndPoint);
if (recBytes != null && recBytes.Count() > 0)
{
OnRecComplete(recBytes);
}
}
udpClient.BeginReceive(UdpRecvCallback, udpState);
}
public bool Connect(string ip, int port, ref string reStr)
{
try
{
lock (lockObj)
{
if (string.IsNullOrEmpty(ip))
{
reStr = "PLC通信地址为空!";
return(false);
}
if (this.udpClientEnabled == false)
{
this.udpClientEnabled = true;
this.LocalPort = GetLocalPort();
udpClient = new UdpClient(this.LocalPort);
currUsePort.Add(this.LocalPort);
this.udpRemotePoint = new IPEndPoint(IPAddress.Parse(ip), port);
udpReceiveState = new UdpState();
udpReceiveState.ipEndPoint = this.udpRemotePoint;
udpReceiveState.udpClient = udpClient;
}
this.ServerIP = ip;
this.ServerPort = port;
udpClient.BeginReceive(UdpRecvCallback, udpReceiveState);
reStr = "PLC连接成功";
this.isConected = true;
return(true);
}
}
catch (Exception ex)
{
reStr = ex.ToString();
this.isConected = false;
this.udpClientEnabled = false;
currUsePort.Remove(this.LocalPort);
return(false);
}
}
private void UdpRecvCallback(IAsyncResult iar)
{
try
{
UdpState udpState = iar.AsyncState as UdpState;
if (iar.IsCompleted)
{
Byte[] recBytes = udpState.udpClient.EndReceive(iar, ref udpState.ipEndPoint);
if (recBytes != null && recBytes.Count() > 0)
{
for (int i = 0; i < recBytes.Count(); i++)
{
if (recBytes[i] == '{')
{
this.recvStr = "";
this.recvPhase = 1;
continue;
}
else if (recBytes[i] == '}')
{
this.recvPhase = 2;
break;
}
if (this.recvPhase == 1)
{
this.recBuffer.Add(recBytes[i]);
}
}
// this.recBuffer.AddRange(recBytes);
if (this.recvPhase == 2)
{
Encoding gb2312 = Encoding.GetEncoding("GB2312");
this.recvStr = gb2312.GetString(this.recBuffer.ToArray()).Trim();
//Console.WriteLine("收到{0}数据：{1}", connStr, recvStr);
}
}
}
udpClient.BeginReceive(UdpRecvCallback, udpState);
}
catch (Exception ex)
{
isConnected = false;
Console.WriteLine("{0}数据通信异常，{1}", this.DevID, ex.ToString());
}
}
private void UdpRecvCallback(IAsyncResult iar)
{
UdpState udpState = iar.AsyncState as UdpState;
if (iar.IsCompleted)
{
Byte[] recBytes = udpState.udpClient.EndReceive(iar, ref udpState.ipEndPoint);
if (recBytes != null && recBytes.Count() > 0)
{
this.recBuffer.AddRange(recBytes);
//Console.Write("Recv:");
//for(int i=0;i<recBytes.Count();i++)
//{
// Console.Write("{0}", recBytes[i].ToString("X2"));
//}
//Console.WriteLine("");
}
}
udpClient.BeginReceive(UdpRecvCallback, udpState);
}
private void UdpRecvCallback(IAsyncResult iar)
{
try
{
UdpState udpState = iar.AsyncState as UdpState;
if (iar.IsCompleted)
{
Byte[] recBytes = udpState.udpClient.EndReceive(iar, ref udpState.ipEndPoint);
if (recBytes != null && recBytes.Count() > 0)
{
OnRecComplete(recBytes);
}
}
udpClient.BeginReceive(UdpRecvCallback, udpState);
}
catch (Exception ex)
{
Console.WriteLine("SUdpClient类UdpRecvCallback错误：" + ex.StackTrace.ToString());
}
}
public bool Connect(ref string reStr)
{
try
{
lock (lockObj)
{
if (string.IsNullOrEmpty(this.connStr))
{
reStr = "PLC通信地址为空!";
return(false);
}
//this.connStr = plcAddr;
string[] splitStr = new string[] { ",", ";", ":", "-", "|" };
string[] strArray = this.connStr.Split(splitStr, StringSplitOptions.RemoveEmptyEntries);
if (strArray.Count() < 2)
{
isConnected = false;
}
string remoteIP = strArray[0];
int remotePort = int.Parse(strArray[1]);
if (udpClient == null)
{
udpClient = new UdpClient(LocalPort);
}
this.udpRemotePoint = new IPEndPoint(IPAddress.Parse(remoteIP), remotePort);
UdpState udpReceiveState = new UdpState();
udpReceiveState.ipEndPoint = this.udpRemotePoint;
udpReceiveState.udpClient = udpClient;
udpClient.BeginReceive(UdpRecvCallback, udpReceiveState);
return(true);
}
}
catch (Exception ex)
{
reStr = ex.ToString();
return(false);
}
}
