mes-client/PLCDataReader/PublicMethod/ModBusTCPClient.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.Sockets;
using System.Text;

namespace UAS_PLCDataReader.PublicMethod
{
    class ModBusTCPClient
    {
        private Socket socket;

        private IPEndPoint serverFullAddr;//完整终端地址

        private bool isOpen = false;

        private bool receiveData;

        private Dictionary<string, string> returnvalue = new Dictionary<string, string>();

        public bool IsOpen
        {
            get
            {
                return isOpen;
            }

            set
            {
                isOpen = value;
            }
        }

        public string IP
        {
            get
            {
                return iP;
            }

            set
            {
                iP = value;
            }
        }

        public string Port
        {
            get
            {
                return port;
            }

            set
            {
                port = value;
            }
        }

        public bool ReceiveData
        {
            get
            {
                return receiveData;
            }

            set
            {
                receiveData = value;
            }
        }

        public Dictionary<string, string> Returnvalue
        {
            get
            {
                return returnvalue;
            }

            set
            {
                returnvalue = value;
            }
        }

        private string iP;

        private string port;

        public ModBusTCPClient(string IP, int Port)
        {
            socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
            serverFullAddr = new IPEndPoint(IPAddress.Parse(IP), Port);//设置IP，端口
            try
            {
                socket.Connect(serverFullAddr);
            }
            catch (Exception)
            {

            }
        }

        public void Send(string Command)
        {
            Command = Command.Replace(" ", "");
            byte[] arr = new byte[Command.Length / 2];
            for (int i = 0; i < Command.Length / 2; i++)
            {
                arr[i] = (byte)Convert.ToInt32(Command.Substring(i * 2, 2), 16);
            }
            socket.Send(arr);
            byte[] receive = new byte[1024 * 1024];
            int length = socket.Receive(receive);
            Console.WriteLine(BaseUtil.ByteToHexadecimalString(receive, length));
            if (!returnvalue.ContainsKey(socket.RemoteEndPoint.ToString()))
            {
                returnvalue.Add(socket.RemoteEndPoint.ToString(), BaseUtil.ByteToHexadecimalString(receive, length));
            }
        }
    }
}