public override async Task <bool> ConnectAsync()
        {
            _connectTryCount++;
            ProtocalLinker = _port == 0 ? new SiemensTcpProtocalLinker(_ip) : new SiemensTcpProtocalLinker(_ip, _port);
            if (!await ProtocalLinker.ConnectAsync())
            {
                return(false);
            }
            _connectTryCount = 0;
            var inputStruct = new CreateReferenceSiemensInputStruct(_tdpuSize, _taspSrc, _tsapDst);

            return
                (await await
                 ForceSendReceiveAsync(this[typeof(CreateReferenceSiemensProtocal)], inputStruct)
                 .ContinueWith(async answer =>
            {
                if (!ProtocalLinker.IsConnected)
                {
                    return false;
                }
                var inputStruct2 = new EstablishAssociationSiemensInputStruct(0x0101, _maxCalling,
                                                                              _maxCalled,
                                                                              _maxPdu);
                var outputStruct2 =
                    (EstablishAssociationSiemensOutputStruct)
                    await
                    SendReceiveAsync(this[typeof(EstablishAssociationSiemensProtocal)],
                                     inputStruct2);
                return outputStruct2 != null;
            }));
        }
 /// <summary>
 ///     连接
 /// </summary>
 /// <returns>是否连接成功</returns>
 public override async Task <bool> ConnectAsync()
 {
     return(await ProtocalLinker.ConnectAsync());
 }
 /// <summary>
 ///     连接
 /// </summary>
 /// <returns>是否连接成功</returns>
 public override bool Connect()
 {
     return(ProtocalLinker.Connect());
 }