添加项目文件。

SamplePre.Communication/Communication/ModbusTcpCommunicator.cs

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+using Modbus.Device;
+using S7.Net;
+using SamplePre.Common;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net.Sockets;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SamplePre.Communication.Communication
+{
+
+    public class ModbusTcpCommunicator : ICommunication, IDisposable
+    {
+        IModbusMaster _modbusMaster = null;
+        TcpClient _tcpClient = null;
+        private readonly string _ipAddress;
+        private readonly int _port;
+
+
+        /// <summary>
+        /// 是否连接
+        /// </summary>
+        private bool _isConnected = false;
+
+        /// <summary>
+        /// 是否连接
+        /// </summary>
+        public bool IsConnected
+        {
+            get => _isConnected;
+            set
+            {
+                if (_isConnected != value)
+                {
+                    _isConnected = value;
+                    ConnectionStatusChanged?.Invoke(value);
+                }
+            }
+        }
+
+        /// <summary>
+        /// 连接状态变化事件
+        /// </summary>
+        public event Action<bool> ConnectionStatusChanged;
+
+        /// <summary>
+        /// 构造函数
+        /// </summary>
+        /// <param name="ipAddress">IP地址</param>
+        /// <param name="port">端口号</param>
+        public ModbusTcpCommunicator(string ipAddress, int port=502)
+        {
+
+            try
+            {
+                _ipAddress = ipAddress;
+                _port = port;
+
+                _tcpClient = new TcpClient(ipAddress, port);//Modbus主设备
+
+                _modbusMaster = ModbusIpMaster.CreateIp(_tcpClient);
+                _modbusMaster.Transport.ReadTimeout = 2000;
+                _modbusMaster.Transport.Retries = 3;
+
+                IsConnected = true;
+            }
+            catch (Exception ex)
+            {
+                LoggerHelper.Logger.Error("初始化ModbusTcpCommunicator失败！" + ex.Message);
+              
+            }
+           
+        }
+
+        /// <summary>
+        /// 连接PLC
+        /// </summary>
+        /// <returns>是否连接成功</returns>
+        public bool Connect()
+        {
+            try
+            {
+                if (IsConnected)
+                {
+                    LoggerHelper.Logger.Info("已经处于连接状态!");
+                    return true;
+                }
+
+                // 如果之前的连接对象已释放，创建新的
+                if (_modbusMaster == null)
+                {
+                    _tcpClient = new TcpClient(_ipAddress, _port);//Modbus主设备
+
+                    _modbusMaster = ModbusIpMaster.CreateIp(_tcpClient);
+                    _modbusMaster.Transport.ReadTimeout = 2000; //
+                    _modbusMaster.Transport.Retries = 3;
+
+                    
+                }
+
+              
+               
+                LoggerHelper.Logger.Info("PLC连接成功");
+                IsConnected = true;
+
+                return IsConnected;
+            }
+            catch (Exception ex)
+            {
+
+                LoggerHelper.Logger.Info($"连接PLC失败: {ex.Message}");
+                IsConnected = false;
+
+                return false;
+            }
+        }
+
+        /// <summary>
+        /// 断开连接
+        /// </summary>
+        public void Disconnect()
+        {
+            try
+            {
+                if (IsConnected)
+                {
+                   
+                    _modbusMaster.Dispose();
+                    _tcpClient.Close();
+                   
+                    IsConnected = false;
+                    LoggerHelper.Logger.Info("PLC连接已断开");
+
+                }
+            }
+            catch (Exception ex)
+            {
+                LoggerHelper.Logger.Info($"断开PLC连接失败: {ex.Message}");
+            }
+        }
+
+
+
+        /// <summary>
+        /// 写入数组数据
+        /// </summary>
+        /// <param name="Dbno"></param>
+        /// <param name="start"></param>
+        /// <param name="bytes"></param>
+        /// <returns></returns>
+        public bool WriteArraysBtye<T>(int Dbno, int start, T[] data)
+        {
+
+
+            try
+            {
+                if (!IsConnected && !Connect())
+                {
+                    return false;
+                }
+
+                ushort[] ushorts = data.Cast<ushort>().ToArray();
+
+                _modbusMaster.WriteMultipleRegisters((byte)Dbno, (ushort)start, ushorts);
+               
+
+                return true;
+            }
+            catch (Exception ex)
+            {
+                LoggerHelper.Logger.Info($"写入数组失败: {ex.Message}");
+                return false;
+            }
+
+
+
+
+        }
+
+
+        /// <summary>
+        /// 读取数组
+        /// </summary>
+        /// <returns></returns>
+        public ushort[] ReadArraysShort(int Dbno, int start, int lenth)
+        {
+
+            //try
+            //{
+            //    if (!IsConnected && !Connect())
+            //    {
+            //        return null;
+            //    }
+
+            //    //public object? Read(DataType dataType, int db, int startByteAdr, VarType varType, int varCount, byte bitAdr = 0)
+            //    ushort[] datas = _plc.Read(DataType.DataBlock, Dbno, start, VarType.Word, lenth) as ushort[];
+            //    return datas;
+            //}
+            //catch (Exception ex)
+            //{
+
+            //    LoggerHelper.Logger.Info($"读取数组失败: {ex.Message}");
+            //    return null;
+            //}
+
+            return null;
+
+
+        }
+
+
+        /// <summary>
+        /// 释放资源
+        /// </summary>
+        public void Dispose()
+        {
+            // 释放托管资源
+            Disconnect();
+           
+        }
+
+        public bool WriteSingleData(string address, object value)
+        {
+            throw new NotImplementedException();
+        }
+
+        ~ModbusTcpCommunicator()
+        {
+            Dispose();
+        }
+
+    }
+
+}