ПЛК 304 и SysSockAccept

[CSharp]

При попытке подключиться вылетает иключение в контролле.

CASE status OF

    INIT:

        ServerSocket := SysSockCreate(SOCKET_AF_INET, SOCKET_STREAM, SOCKET_IPPROTO_TCP, ADR(resultSysSockCreate));

        Addres.sin_family := SOCKET_AF_INET;
        Addres.sin_addr.ulAddr := SOCKET_INADDR_ANY;
        Addres.sin_port := SysSockHtons(usHost:= 1000);    
            
        IF resultSysSockCreate = Errors.ERR_OK  THEN
        
            IF SysSockIoctl(hSocket:= ServerSocket, diCommand:= SOCKET_FIONBIO, pdiParameter:= ADR(mode)) = Errors.ERR_OK THEN
            
                status := CONNECT;
            
            END_IF
                        
        END_IF
        
    CONNECT:

        IF SysSockBind(ServerSocket, ADR(Addres), SIZEOF(Addres)) = Errors.ERR_OK THEN

            status := LISTEN;

        END_IF

    LISTEN:

        IF SysSockListen(ServerSocket, 1) = Errors.ERR_OK THEN
                        
            ConnectSocket := SysSockAccept(ServerSocket, ADR(Addres), SIZEOF(Addres), ADR(result));

        END_IF

        IF ConnectSocket <> -1 THEN

            status := WORK;

        END_IF

    WORK: