S7Connect/ConsoleApp1/Program.cs

using System.Runtime.CompilerServices;

namespace ConsoleApp1
{
    internal class Program
    {
        static void Main(string[] args)
        {
            S7.Net.Plc plc = new S7.Net.Plc(S7.Net.CpuType.S71200, "127.0.0.1", 0, 0);
            plc.AutoClearCacheInterval = -1;
            plc.Open();
            plc.Write("DB2.DBX0.7", false);
            plc.Write("DB2.DBX1.1", false);
            plc.Write("DB2.DBX1.2", false);
            plc.Write("DB2.DBX30.2", false);
            var val = plc.ReadFloat("DB2.DBD4");
            //Console.WriteLine(Unsafe.As<uint, Single>(ref val));
            //Console.WriteLine(BitConverter.ToSingle(.Reverse().ToArray()));
            Random random = new Random();
            //while (true)
            {
                plc.Write("DB2.DBD4", (Single)(random.NextDouble() * 10));
                plc.Write("DB2.DBD8", (Single)(random.NextDouble() * 1000));
                plc.Write("DB2.DBD12", (Single)(random.NextDouble() * 100));
                Thread.Sleep(1000);
            }
            plc.Close();
            return;


            List<string> writeaddrs = new List<string>();
            List<string> writeaddrs1 = new List<string>();
            List<string> addrs = new List<string>();
            for(int i=0;i<0x200;i++)
            {
                addrs.Add($"DB{1}.DBX{i / 8}.{i % 8}");
                writeaddrs1.Add($"DB{1}.DBX{i / 8}.{i % 8}");
                addrs.Add($"DB{2}.DBD{i*4}");
                writeaddrs.Add($"DB{2}.DBD{i * 4}");
                addrs.Add($"DB{3}.DBX{i / 8}.{i % 8}");
                writeaddrs1.Add($"DB{3}.DBX{i / 8}.{i % 8}");

            }
            for(int i=0;i<20;i++)
            {
                Task.Run(() => ReadTest(plc,addrs));
                Task.Run(() => WriteTest(plc, writeaddrs));
                Task.Run(() => WriteBoolTest(plc, writeaddrs1));
            }
            Console.Read();
            plc.Close();
            Console.WriteLine("Hello, World!");
        }
        static void ReadTest(S7.Net.Plc plc,List<string> addr)
        {
            while (true)
            {
                addr.ForEach(x => plc.Read(x));
            }
        }
        static void WriteTest(S7.Net.Plc plc,List<string> addr)
        {
            Random random = new Random();
            while(true)
            {
                addr.ForEach(x =>
                {
                    plc.Write(x, (Single)random.NextDouble());
                });
            }
        }
        static void WriteBoolTest(S7.Net.Plc plc, List<string> addr)
        {
            Random random = new Random();
            while (true)
            {
                addr.ForEach(x =>
                {
                    plc.Write(x, random.Next(0,10)>=5);
                });
            }
        }
    }
}