C#中的modbus Tcp協(xié)議的數(shù)據(jù)抓取和使用解析

更新時(shí)間：2022年07月19日 17:19:14 作者：???

這篇文章主要介紹了C#中的modbus Tcp協(xié)議的數(shù)據(jù)抓取和使用解析，具有很好的參考價(jià)值，希望對(duì)大家有所幫助。如有錯(cuò)誤或未考慮完全的地方，望不吝賜教

C# modbus Tcp協(xié)議數(shù)據(jù)抓取和使用

基于Modbus tcp 協(xié)議的數(shù)據(jù)抓取，并解析，源碼使用C#開發(fā)

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.Sockets;
using System.Text;
namespace modbus
{
    class Program
    {
        #region 字節(jié)轉(zhuǎn)換為16進(jìn)制字符
        /// <summary>
        /// 字節(jié)轉(zhuǎn)換為16進(jìn)制字符
        /// </summary>
        /// <param name="data"></param>
        /// <returns></returns>jiang
        static string ByteToHexString(byte[] data)
        {
            string strTemp = "";
            for (int i = 2; i < data.Length; i++)
            {
                string a = Convert.ToString(data[i], 16).PadLeft(2, '0');
                strTemp = strTemp + a;
            }
            return strTemp.Substring(0, 100);
        }
        #endregion
        #region 16進(jìn)制字符轉(zhuǎn)換為字節(jié)
        /// <summary>
        /// 16進(jìn)制字符轉(zhuǎn)換為字節(jié)
        /// </summary>
        /// <param name="hs"></param>
        /// <returns></returns>
        static byte[] HexString(string hs)
        {
            hs = hs.Replace(" ", "");
            string strTemp = "";
            byte[] b = new byte[hs.Length / 2];
            for (int i = 0; i < hs.Length / 2; i++)
            {
                strTemp = hs.Substring(i * 2, 2);
                b[i] = Convert.ToByte(strTemp, 16);
            }
            return b;
        }
        #endregion
        #region 發(fā)送、接收?qǐng)?bào)文并返回報(bào)文
        /// <summary>
        /// 發(fā)送或接受風(fēng)機(jī)指令
        /// </summary>
        /// <param name="sendCodeMeg">指令</param>
        /// <param name="IpAddress">IP地址</param>
        /// <param name="panelIP">面板IP</param>
        /// <returns></returns>
        static string SendPack(string sendCodeMeg, string IpAddress, int port)
        {
            IPAddress ip = IPAddress.Parse(IpAddress);
            Socket clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
            try
            {
                Console.WriteLine("開始發(fā)送數(shù)據(jù)。。。");
                clientSocket.Connect(new IPEndPoint(ip, port)); //配置服務(wù)器ip和端口
                //TcpClient tcpClient = new TcpClient(); 
                Console.WriteLine("服務(wù)器連接成功");
            }
            catch
            {
                Console.WriteLine("連接服務(wù)器失敗\n");
                return null;
            }
            try
            {
                string sendMessage = sendCodeMeg; // "6B 00 00 00 00 06 02 06 05 10 00 01"; //發(fā)送到服務(wù)端的內(nèi)容
                var sendData = HexString(sendMessage);
                string recvStr = null;
                int bytes;
                try
                {
                    Console.WriteLine("發(fā)送報(bào)文：{0}", sendMessage);
                    clientSocket.Send(sendData);//向服務(wù)器發(fā)送數(shù)據(jù) 
                    byte[] recvBytes = new byte[1024];
                    //連接時(shí)長(zhǎng)500ms
                    clientSocket.ReceiveTimeout = 5000;
                    bytes = clientSocket.Receive(recvBytes, recvBytes.Length, 0); //服務(wù)端接受返回信息
                    recvStr += ByteToHexString(recvBytes);
                }
                catch (Exception ex)
                {
                    Console.WriteLine("出現(xiàn)錯(cuò)誤！\n{0}\n\n", ex);
                    recvStr = null;
                }
                if (recvStr != null)
                {
                    Console.WriteLine("獲取成功！\n 獲得數(shù)據(jù):{0}\n\n", recvStr);
                }
                clientSocket.Close();//關(guān)閉連接釋放資源
                                     //Console.ReadLine();
                return recvStr;
            }
            catch
            {
                Console.WriteLine("出現(xiàn)錯(cuò)誤！\n");
                return null;
            }
        }
        #endregion
        //主函數(shù)
        static void Main(string[] args)
        {
            Console.WriteLine("開始！");
            string IP = "10.139.49.61";
            int port = 502;
            int fnu = 4;
            string a = fnu.ToString("x2");
            string sendCodeMeg1 = "02 00 00 00 00 06 01 03 01 10 00 02";
            string sendCodeMeg2 = "03 00 00 00 00 06 01 03 01 0A 00 02";
            string data1 = null;
            string data2 = null;
            for (int num = 0; num < 5; num++)
            {
                Console.WriteLine("第{0}次調(diào)用Get_Fan函數(shù)！\n", num + 1);
                data1 = SendPack(sendCodeMeg1, IP, port);
                if (data1 != null)
                {
                    break;
                }
            }
            for (int num = 0; num < 5; num++)
            {
                Console.WriteLine("第{0}次調(diào)用Get_Fan函數(shù)！\n", num + 1);
                data2 = SendPack(sendCodeMeg2, IP, port);
                if (data2 != null)
                {
                    break;
                }
            }
            Console.WriteLine("結(jié)束");
            Console.ReadKey();
        }
    }
}

C# modbus tcp讀寫數(shù)據(jù)

1.引用-添加引用-HslCommunication.dll

2.ModBus組件所有的功能類都在 HslCommunication.ModBus命名空間，所以再使用之前先添加

using HslCommunication.ModBus;
using HslCommunication;

3.在使用讀寫功能之前必須先進(jìn)行實(shí)例化：

private ModbusTcpNet busTcpClient = new ModbusTcpNet("192.168.3.45", 502, 0x01);   // 站號(hào)1

上面的實(shí)例化指定了服務(wù)器的IP地址，端口號(hào)（一般都是502），以及自己的站號(hào)，允許設(shè)置為0-255，后面的兩個(gè)參數(shù)有默認(rèn)值，在實(shí)例化的時(shí)候可以省略。

private ModbusTcpNet busTcpClient = new ModbusTcpNet("192.168.3.45");   // 端口號(hào)502，站號(hào)1

模擬器模擬的是西門子PLC 有四種類型
地址以0開頭的是可讀可寫線圈
地址以1開頭的是只讀線圈
地址以4開頭的是可讀可寫寄存器(string/float/int/ushort/short等都可以放在這里面)
地址以3開頭的是只讀寄存器
我們讀取的時(shí)候只看后四位0001，就是1，但是庫(kù)里面是從0開始讀的，所以對(duì)應(yīng)的就要減一

5.讀取寄存器的一個(gè)值

        private void button1_Click(object sender, EventArgs e)
        {
		    bool coil100 = busTcpClient.ReadCoil("0").Content;   // 讀取線圈1的通斷
		    int int100 = busTcpClient.ReadInt32("0").Content;      // 讀取寄存器1-2的int值
		    float float100 = busTcpClient.ReadFloat("0").Content; // 讀取寄存器1-2的float值
		    double double100 = busTcpClient.ReadDouble("0").Content; // 讀取寄存器1-3的double值
        }

6.讀取寄存器的一組值（一組線圈）（一組float值）

        private void button3_Click(object sender, EventArgs e)
        {
            //讀取地址為0，長(zhǎng)度為3的線圈數(shù)量
            OperateResult<bool[]> read = busTcpClient.ReadCoil("0", 3);
            if (read.IsSuccess)
            {
                for (int i = 0; i < read.Content.Length; i++)
                {
                    Console.WriteLine(read.Content[i]);
                }
            }
            else
            {
                MessageBox.Show(read.ToMessageShowString());
            }
			
           	//讀取(一組)寄存器數(shù)據(jù)
            OperateResult<float[]> result = busTcpClient.ReadFloat("0", 4);
            if (result.IsSuccess)
            {
                //Console.WriteLine(result.Content[0]);
                //Console.WriteLine(result.Content[1]);
                //Console.WriteLine(result.Content[2]);
                for (int i = 0; i < result.Content.Length; i++)
                {
                    Console.WriteLine(result.Content[i]);
                }
            }
            else
            {
                MessageBox.Show(result.ToMessageShowString());
            }
        }

7.寫入一個(gè)(線圈)（寄存器）

        private void button2_Click(object sender, EventArgs e)
        {
		    busTcpClient.WriteCoil("0", true);// 寫入線圈1為通
		    busTcpClient.Write("0", 123.456);// 寫入寄存器1-2為123.456
        }

8.批量寫入一組(線圈)（寄存器）

        private void button9_Click(object sender, EventArgs e)
        {
            //寫入一組線圈
            bool[] value = new bool[] { true, true, false, true, false };
            busTcpClient.WriteCoil("0", value);
        }
        private void button10_Click(object sender, EventArgs e)
        {
            //寫入一組寄存器
            float[] value = new float[] {1.1F, 1.2F, 1.3F, 1.4F, 1.5F };
            busTcpClient.Write("0", value);
        }