frame length not plausible

[rekkel]

hello,

My analyzer says that the
'frame length not plausible"

is this a known problem?

using System;
using System.IO;
using System.ServiceProcess;
using System.Text;
using uPLibrary.Networking.M2Mqtt;
using uPLibrary.Networking.M2Mqtt.Messages;
using IEC60870.SAP;
using IEC60870.Enum;
using IEC60870.IE;
using IEC60870.IE.Base;
using IEC60870.Object;
using System.Timers;

namespace FPL104Service
{
public partial class FPL104Service : ServiceBase
{

    System.Timers.Timer timer = new System.Timers.Timer();

    MqttClient client;
    string clientId;

    string BrokerAddress = "127.0.0.1";
    
    private ServerSAP server;

    private int cnt = 1;

    public FPL104Service()
    {
        InitializeComponent();

 


    }

    protected override void OnStart(string[] args)
    {
        try
        {
            WriteToFile("Start 104 server " + DateTime.Now);
            //104 start en settings
            server = new ServerSAP("127.0.0.1", 2404);
            server.StartListen(10);
            
        }
        catch (Exception e)
        {
            Console.WriteLine(e);
            WriteToFile("Cannot start 104 rtu " + DateTime.Now);
        }


        WriteToFile("Service is started at " + DateTime.Now);
        timer.Elapsed += new ElapsedEventHandler(OnElapsedTime);
        timer.Interval = 5000; //number in milisecinds  
        timer.Enabled = true;

        client = new MqttClient(BrokerAddress);

        // register a callback-function (we have to implement, see below) which is called by the library when a message was received
        client.MqttMsgPublishReceived += client_MqttMsgPublishReceived;

        // use a unique id as client id, each time we start the application
        clientId = Guid.NewGuid().ToString();

        client.Connect(clientId);

        string Topic = "FPL104/Test";

        // subscribe to the topic with QoS 2
        client.Subscribe(new string[] { Topic }, new byte[] { 2 });





        // this code runs when a message was received
        void client_MqttMsgPublishReceived(object sender, MqttMsgPublishEventArgs e)
        {
            string ReceivedMessage = Encoding.UTF8.GetString(e.Message);
            WriteToFile(ReceivedMessage);
            



        }

    }


    protected override void OnStop()
    {
        WriteToFile("Service is stopped at " + DateTime.Now);
        client.Disconnect();

    }

    private void OnElapsedTime(object source, ElapsedEventArgs e)
    {
        WriteToFile("Service is recall at " + DateTime.Now);
        InformationElement ielem_value1;
        if (cnt == 1)
        { 
            ielem_value1 = new IeShortFloat(1);
            
            cnt = 0;
        }
        else
        {
            ielem_value1 = new IeShortFloat(0);
            cnt = 1;
        }
        WriteToFile("Service is recall at " + cnt +" " + DateTime.Now);
        InformationElement ielem_quality1 = new IeQuality(false, false, false, false, false);
        InformationElement[][] ielem1 = new InformationElement[1][] { new InformationElement[2] { ielem_value1, ielem_quality1 } };
        InformationObject[] iobj1 = new InformationObject[1] { new InformationObject(1, ielem1) };
        ASdu asdu2 = new ASdu(TypeId.M_ME_NC_1, false, CauseOfTransmission.SPONTANEOUS, false, false, 1, 1, iobj1);
        //                                                                               common address,  IOA
        server.SendASdu(asdu2);


    }

another question. How do i set the iec time ?

I hope you can help me.

greets Rick