public int ConnectPLC()
{
if (IsConnected)
{
return(-1);
}
//PLC连不上时临时使用
IPEndPoint iep = new IPEndPoint(IPAddress.Parse(IpAddress), TcpPort);
cliSocket = TimeOutSocket.Connect(iep, 1000);
if (cliSocket != null)
{
mFds.rfd = OpenSocket(102, IpAddress);
if (mFds.rfd <= 0)
{
return(mFds.rfd); //FD一般是不可能为0的，0、1、2、3、4等估计早被操作系统或者其他程序占用了
}
mFds.wfd = mFds.rfd;
mDI = new DaveInterface(mFds, "Test", 0, Protocols.ISOTCP, ProfiBusSpeed.Speed187k);
mDI.Timeout = 1;
mConn = new DaveConnection(mDI, 0, PlcRack, PlcSlot);
int rc = mConn.ConnectPLC();
if (rc == 0)
{
IsConnected = true;
return(rc);
}
return(rc);
}
return(-1);
}
/// <summary>
/// 连接PLC
/// </summary>
/// <returns></returns>
public int ConnectPLC()
{
if (IsConnected)
{
return(0);
}
IPEndPoint ipe = new IPEndPoint(IPAddress.Parse(IpAddress), TcpPort);
TimeOutSocket timeOut = new TimeOutSocket();
cliSocket = timeOut.Connect(ipe, 300);
if (cliSocket != null)
{
mFds.rfd = API.OpenSocket(TcpPort, IpAddress);
if (mFds.rfd <= 0)
{
//FD一般是不可能为0的，0、1、2、3、4等估计早被操作系统或者其他程序占用了
return(mFds.rfd);
}
mFds.wfd = mFds.rfd;
mDI = new DaveInterface(mFds, "PLC_1", 0, PLCEnum.Protocols.ISOTCP, PLCEnum.ProfiBusSpeed.Speed187k);
mDI.Timeout = 1;
mConn = new DaveConnection(mDI, 0, PlcRack, PlcSlot);
int rc = mConn.ConnectPL();
if (rc == 0)
{
IsConnected = true;
return(rc);
}
return(rc);
}
return(-1);
}
public void DisConnectPLC()
{
if (!IsConnected)
{
return;
}
if (mConn != null)
{
mConn.DisconnectPLC();
mConn.Dispose();
}
if (mDI != null)
{
mDI.Dispose();
}
API.CloseSocket(mFds.rfd);
mConn = null;
mDI = null;
IsConnected = false;
}