incorrect transaction ID

[Zeus]

Hi Mik

I use the code below to access data from server.
The server returns error message
Incorrect format of data received from the server: incorrect transaction ID

static void GetCurrentDataConcurrency()
{
    CnlData[] cnlData;

    for (int i = 0; i < 1000; i++)
    {
        Task.Run(() =>
        {

            if (cnlListID > 0)
            {
                Console.WriteLine("Request data of the list with ID = " + cnlListID);
                cnlData = client.GetCurrentData(ref cnlListID);
            }
            else
            {
                Console.Write("Enter channel number: ");
                int[] cnlNums = new int[] { 101,102 };
                cnlData = client.GetCurrentData(cnlNums, true, out cnlListID);
            }

            if (cnlData == null)
                Console.WriteLine("Error: null received");
            if (cnlData.Length > 0)
                Console.WriteLine("Channel data = " + cnlData[0].Val + " (" + cnlData[0].Stat + ")");
            else
                Console.WriteLine("No data");

            Console.WriteLine("Channel list ID = " + cnlListID);
        });
        Thread.Sleep(10);
    }
}

• This topic was modified 1 year, 2 months ago by Mikhail.

[Mikhail]

Hi,
ScadaClient is class is not thread safe, while you execute client.GetCurrentData in many threads.

[Author]

Posts