C# & S7300 ile C# Ethernet Haberleşmesi

Using System;
class test {
    static libnodave.daveOSserialType fds;
    static libnodave.daveInterface di;
    static libnodave.daveConnection dc;
    static int localMPI=0;
    static int plcMPI=2;
    public static int Main (string[] args)
    {
    int i,a=0,j,res,b=0,c=0;
    float d=0;

        fds.rfd=libnodave.setPort(args[0],"38400",'O');
    fds.wfd=fds.rfd;
        if (fds.rfd>0) { 
        di =new libnodave.daveInterface(fds, "IF1", localMPI, libnodave.daveProtoMPI, libnodave.daveSpeed187k);
            di.setTimeout(1000000);
        res=di.initAdapter();
        if(res==0) {
        dc = new libnodave.daveConnection(di,plcMPI, 0, 0);
        if (0==dc.connectPLC()) {
            res=dc.readBytes(libnodave.daveFlags, 0, 0, 16, null);
            if (res==0) {
                a=dc.getS32();    
                b=dc.getS32();
                c=dc.getS32();
            d=dc.getFloat();
            Console.WriteLine("FD0: " + a);
            Console.WriteLine("FD4: " + b);
            Console.WriteLine("FD8: " + c);
            Console.WriteLine("FD12: " + d);
            } else 
            Console.WriteLine("error "+res+" "+libnodave.daveStrerror(res));
        }
        dc.disconnectPLC();
        }        
        di.disconnectAdapter();
        libnodave.closePort(fds.rfd);
    } else {
        Console.WriteLine("Couldn't open serial port "+args[0]);
        return -1;
    }    
    return 0;
    }
}