| 1234567891011121314151617181920212223242526272829303132333435363738394041 | using System.Collections.Generic;using PLC.Siemens.Protocol.Common;using PLC.Siemens.Protocol.Negotiate;using PLC.Siemens.O;namespace PLC.Siemens.ProtocolHandle{    public class NegotiateHandle : IPacketHandle    {        public ushort PduRequest { get; set; }        public IList<NegotiateRequest> Requests { get; set; }        public IList<NegotiateResponse> Responses { get; set; }        public ResultCode ResultCode { get; set; }        public NegotiateHandle()        {            ResultCode = ResultCode.Unknown;            PduRequest = 480;            Requests = new List<NegotiateRequest>();            Responses = new List<NegotiateResponse>();        }        public void Handle(IIsoSender sender)        {            var negotiateRequest = new NegotiateRequest();            negotiateRequest.PduRequestLength = PduRequest;            Requests.Add(negotiateRequest);            var response = sender.IsoSend<NegotiateRequest, NegotiateResponse>(negotiateRequest);            if (response == null)            {                ResultCode = ResultCode.PduConfirmFault;                return;            }            ResultCode = response.Header.Error;            if(ResultCode==ResultCode.OK)                Responses.Add(response);        }            }}
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