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復制粘貼代碼到VsCode 或LinqPad 中，執行即可，需要.net8。在我的電腦上實驗成功，歡迎反饋不同型號的結果。
using System.Net.Sockets;
using System.Runtime.CompilerServices;
using System.Security.Cryptography.X509Certificates;

namespace WeintekTest;

class Program
{
    static Weintek weintek=new Weintek("192.168.20.51");

    static void Main(string[] args)
    {
        ClearTool();          
    }

    static void Fun0()
    {
        Console.WriteLine(weintek.GetLB(9047));
        Console.WriteLine(weintek.GetLB(9048));
    }

    static void Fun1()
    {
        Console.WriteLine("Done!");
        Console.Read();

        File.WriteAllText("res.txt","");

        for(int i=9000;i<12900;i++)
        {
            string str=$"{DateTime.Now}:LW{i}:\t"+weintek.GetLW(1, i) + Environment.NewLine;
            File.AppendAllText("res.txt",str);
        }
        
        Console.WriteLine("Done!");
        Console.Read();
    }

    static void ClearTool()
    {
        //Console.WriteLine("如要確認執行請按\"Y\"鍵：");
        //var key=Console.ReadKey();
        //Console.WriteLine();
        //if(key.Key != ConsoleKey.Y)
        {
            //Console.WriteLine("已取消執行!");
            //Console.Read();            
            //return;
        }

        Console.WriteLine("請謹慎操作！");
        Console.WriteLine("觸摸屏將在稍后重啟，請在觸摸屏重啟后手動進入并執行觸摸屏校準！");
        Console.WriteLine("校準完成后，會彈出對話框詢問是否重置密碼，輸入'yes'即可清空內部項目并重置下載密碼！");

        for(int i=10;i>0;i--)
        {
            //倒計時執行
            Console.WriteLine($"倒計時：{i}秒.");
            Thread.Sleep(1000);
        }

        Console.WriteLine("正在更新日期時間...");
        //更新日期時間
        weintek.SetLW(9022, (short)DateTime.Now.Year);//更新年
        weintek.SetLW(9021, (short)DateTime.Now.Month);//更新月
        weintek.SetLW(9020, (short)DateTime.Now.Day);//更新日
        weintek.SetLW(9019, (short)DateTime.Now.Hour);//更新時
        weintek.SetLW(9018, (short)DateTime.Now.Minute);//更新分
        weintek.SetLW(9017, (short)DateTime.Now.Second);//更新秒
        
        Console.WriteLine("正在更改系統設置...");
        weintek.SetLB(9020, true);//顯示系統控制按鈕
        weintek.SetLB(9033, true);//允許上傳
        weintek.SetLB(12364, true);//開啟屏幕校正后恢復出廠設置的選項
        weintek.SetLB(9048, true);//開啟重啟保護
        weintek.SetLB(9047, true);//重啟觸摸屏
        //設定LB寄存器時返回報文實例
        //2024/4/13 10:36:54+_接收內容33：    01-60-00-00-FF-00-00-00-00-00-08-00-01-00-01-00-00-00-01-00-00-00-00-00-00-00-00-00-00-00-00-00-02
        //2024/4/13 10:36:54+_接收內容33：    01-60-00-00-FF-00-00-00-00-00-08-00-01-00-02-00-00-00-01-00-00-00-00-00-00-00-00-00-00-00-00-00-02
        //2024/4/13 10:36:54+_接收內容33：    01-60-00-00-FF-00-00-00-00-00-08-00-01-00-03-00-00-00-01-00-00-00-00-00-00-00-00-00-00-00-00-00-02
        //2024/4/13 10:36:54+_接收內容33：    01-60-00-00-FF-00-00-00-00-00-08-00-01-00-04-00-00-00-01-00-00-00-00-00-00-00-00-00-00-00-00-00-02
        //2024/4/13 10:36:54+_接收內容33：    01-60-00-00-FF-00-00-00-00-00-08-00-01-00-05-00-00-00-01-00-00-00-00-00-00-00-00-00-00-00-00-00-02

        Console.WriteLine("Done!");
        Console.Read();
    }



    public class Weintek
    {
        string _ip;
        int _port=8000;

        int _index=0;
        readonly object lckObj=new object();

        public Weintek(string ip)
        {
            _ip=ip;
            _port=8000;
            
        }

        public Weintek(string ip,int port)
        {
            _ip=ip;
            _port=port;
            
        }

        int GetIndex()
        {
            lock(lckObj)
            {
                return ++_index;
            }
        }

        int GetEasyWatchIndex()
        {
            return 1;
        }

        public bool GetLB(int regAddress)
        {
            //讀LB12364
            //PC發：        01600000ff000000000008000c 00e5 0300000100000000000000000000ff 0403 000001000000
            //HMI回true：    01600000ff0000000000080005 00e5 030000010000000000000000000000000000 0010 0000  //大端
            //HMI回false:   01600000ff0000000000080005 00e5 030000010000000000000000000000000000 0000 0000 //大端

            //讀LB9047
            //PC發：        01600000ff000000000008000c 00fb 0300000200000000000000000000ff 3502 000001000000

            //讀LB9048
            //PC發：        01600000ff000000000008000c 00fe 0300000300000000000000000000ff 3502 000001000000

            try
            {
                bool ret=false;
                string sendHeader="01600000ff000000000008000c";
                string sendConstStr1 = "0300000100000000000000000000ff";
                string sendConstStr2 = "000001000000";

                string receiveHeader="01600000ff0000000000080005";

                var sendStr = sendHeader;
                sendStr += GetIndex().ToString("x4");
                sendStr += sendConstStr1;
                sendStr += GetLBAddress(regAddress).Substring(0,4);
    
                sendStr += sendConstStr2;
                
                var receiveData = Send(sendStr);
                var receiveStr = BitConverter.ToString(receiveData).Replace("-","").ToLower();
                if(receiveStr.Length> receiveHeader.Length &&
                    receiveStr.StartsWith(receiveHeader) &&
                    string.Compare(sendStr.Substring(sendHeader.Length,4),receiveStr.Substring(receiveHeader.Length,4))==0)
                {
                    var dat=ToLittleEndian(Convert.ToUInt16(receiveStr.Substring(66,4),16));
                    var temp =(Convert.ToUInt16(Math.Pow(2,regAddress % 0x10)));
                    ret = (dat & temp) > 0;
                    return ret;
                }

                return ret;
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
                return false;
            }
        }


        /// <summary>
        /// 設置觸摸屏的LB寄存器（系統寄存器的值）
        /// </summary>
        /// <param name="ip">觸摸屏的地址</param>
        /// <param name="port">鏈接端口號,默認值為8000</param>
        /// <param name="index">報文序號，返回報文的序號和發送報文序號相同</param>
        /// <param name="regAddress">LB寄存器地址</param>
        /// <param name="Value">設定值</param>
        public bool SetLB(int regAddress, bool Value)
        {
        //設定LB寄存器時返回報文實例
        //2024/4/13 10:36:54+_接收內容33：    01-60-00-00-FF-00-00-00-00-00-08-00-01-00-01-00-00-00-01-00-00-00-00-00-00-00-00-00-00-00-00-00-02
        //2024/4/13 10:36:54+_接收內容33：    01-60-00-00-FF-00-00-00-00-00-08-00-01-00-02-00-00-00-01-00-00-00-00-00-00-00-00-00-00-00-00-00-02
        //2024/4/13 10:36:54+_接收內容33：    01-60-00-00-FF-00-00-00-00-00-08-00-01-00-03-00-00-00-01-00-00-00-00-00-00-00-00-00-00-00-00-00-02
        //2024/4/13 10:36:54+_接收內容33：    01-60-00-00-FF-00-00-00-00-00-08-00-01-00-04-00-00-00-01-00-00-00-00-00-00-00-00-00-00-00-00-00-02
        //2024/4/13 10:36:54+_接收內容33：    01-60-00-00-FF-00-00-00-00-00-08-00-01-00-05-00-00-00-01-00-00-00-00-00-00-00-00-00-00-00-00-00-02
            try
            {
                string sendHeader="01600000ff000000000008000c";
                string sendConstStr = "0000000100000000000000020000ff";//前面的01是EasyWatch序號，排第一個的為01，第二個的為02，在此處無關緊要

                string receiveHeader="01600000FF0000000000080001";

                var sendStr = sendHeader;
                sendStr += GetIndex().ToString("x4");
                sendStr += sendConstStr;
                sendStr += GetLBAddress(regAddress);
                sendStr += Value ? "ff" : "00";
                sendStr += "0000";
                
                var receiveData = Send(sendStr);
                var receiveStr = BitConverter.ToString(receiveData).Replace("-","").ToLower();
                if(receiveStr.Length> receiveHeader.Length && receiveStr.StartsWith(receiveHeader))
                {
                    return true;
                }

                return false;
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
                return false;
            }
        }        

        static string GetLBAddress(int addr)
        {
            string ret = "";
            string str = addr.ToString("X5");
            ret += str.Substring(2, 2);
            ret += str.Substring(0, 2);
            ret += "00000";
            ret += str.Substring(4, 1);
            return ret;
        }

        public Int16 GetLW(int regAddress)
        {
            return GetLW(regAddress,1);
        }

        /// <summary>
        /// 讀取LW寄存器的值
        /// </summary>
        /// <param name="ip">觸摸屏IP地址</param>
        /// <param name="port">端口</param>
        /// <param name="index">包序號</param>
        /// <param name="regAddress">LW寄存器地址</param>
        /// <param name="count">寄存器個數，當前只支持1個寄存器</param>
        /// <returns>返回值</returns>
        public Int16 GetLW(int regAddress, int count)
        {
            //讀LW9009
            //PC發：    01600000ff000000000008000c00be0300003600000000000000000008ff3123000001000000
            //HMI回：   01600000ff000000000008000500be03000036000000000000000000000000000040400000

            //PC發：    01600000ff000000000008000c00bc0300003600000000000000000008ff3123000001000000
            //HMI回：    01600000ff000000000008000500bc03000036000000000000000000000000000040400000
            try
            {
                UInt16 ret = 0;
                string sendHeader = "01600000ff000000000008000c";
                string sendRegConstStr = "0300003600000000000000000008ff";

                string receiveHeader = "01600000ff0000000000080005";

                string sendStr = sendHeader;
                sendStr += GetIndex().ToString("x4");
                sendStr += sendRegConstStr;
                sendStr += ToLittleEndian((UInt16)regAddress).ToString("x4");
                sendStr += "0000";
                sendStr += ToLittleEndian((UInt16)count).ToString("x4");
                sendStr += "0000";

                var receiveData = Send(sendStr);
                var receiveStr = BitConverter.ToString(receiveData).Replace("-", "").ToLower();

                if (receiveStr.Length > receiveHeader.Length && //長度無無異常
                    receiveStr.StartsWith(receiveHeader) && //接收頭校驗成功
                    string.Compare(sendStr.Substring(sendHeader.Length, 4), receiveStr.Substring(receiveHeader.Length, 4)) == 0 //包序號校驗成功
                )
                {
                    var s1 = receiveStr.Substring(66, 4);
                    ret = Convert.ToUInt16(s1, 16);
                    return (Int16)ToLittleEndian(ret);
                }
                return -1;

            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
                return -1;
            }
        }

        public bool SetLW(int regAddress, Int16 value)
        {
            //寫LW9022=2024    （0xE807）|9022=0x3e23
            //PC發：    01600000ff000000000008000e 00d9 0300005100000000000000010008ff 3e23 0000 0100 e807 0000
            //HMI回：        01600000ff0000000000080001 00d9 030000510000000000000000000000000001
            //              01600000ff00000000000800010001030000510000000000000000000000000001
            try
            {
                string sendHeader = "01600000ff000000000008000e";
                string sendRegConstStr = "0300005100000000000000010008ff";
                
                string receiveHeader = "01600000ff0000000000080001";

                string sendStr = sendHeader;
                sendStr += GetIndex().ToString("x4");
                sendStr += sendRegConstStr;
                sendStr += ToLittleEndian((UInt16)regAddress).ToString("x4");
                sendStr += "0000";
                sendStr += ToLittleEndian(1).ToString("x4");
                sendStr += ToLittleEndian((UInt16)value).ToString("x4");
                sendStr += "0000";

                var receiveData = Send(sendStr);
                var receiveStr = BitConverter.ToString(receiveData).Replace("-", "").ToLower();

                if (receiveStr.Length > receiveHeader.Length && //長度無無異常
                    receiveStr.StartsWith(receiveHeader) && //接收頭校驗成功
                    string.Compare(sendStr.Substring(sendHeader.Length, 4), receiveStr.Substring(receiveHeader.Length, 4)) == 0 //包序號校驗成功
                )
                {
                    return true;
                }
                return false;

            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
                return false;
            }
        }

        byte[] Send(string str)
        {
            try
            {
                using (var client = new TcpClient())
                {
                    client.Connect(_ip, _port);
                    var s = client.GetStream();
                    var sendData = HexStringToByteArray(str);
                    s.Write(sendData);

                    byte[] buffer = new byte[1024];
                    int n = s.Read(buffer);
                    byte[] receiveData = new byte[n];
                    Array.Copy(buffer, receiveData, n);
                    //Console.WriteLine($"{DateTime.Now.ToString()}+_接收內容{receiveData.Length}：\t" + BitConverter.ToString(receiveData));
                    return receiveData;
                }
            }catch(Exception ex)
            {
                Console.WriteLine(ex.Message);
                return null;
            }
        }

        /// <summary>
        /// 十六進制字符串轉字節數組
        /// </summary>
        /// <param name="str">要轉換的字符串</param>
        /// <returns></returns>
        static byte[] HexStringToByteArray(string str)
        {
            return Enumerable.Range(0, str.Length).Where(x => (x % 2) == 0).Select(y => (byte)Convert.ToByte(str.Substring(y, 2), 16)).ToArray();
        }

        /// <summary>
        /// 大端轉小端和小端轉大端的操作是相同的，共用同一個即可
        /// </summary>
        /// <param name="dat">要轉換的內容</param>
        /// <returns></returns>
        static UInt16 ToLittleEndian(UInt16 dat)
        {
            return BitConverter.ToUInt16(BitConverter.GetBytes(dat).Reverse().ToArray());
        }

        /// <summary>
        /// 大端轉小端和小端轉大端的操作是相同的，共用同一個即可
        /// </summary>
        /// <param name="dat">要轉換的內容</param>
        /// <returns></returns>
        static UInt32 ToLittleEndian(UInt32 dat)
        {
            return BitConverter.ToUInt32(BitConverter.GetBytes(dat).Reverse().ToArray());
        }
    }
}