添加项目文件。

SamplePre.Communication/Communication/S7PlcCommunicator.cs

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+
+using S7.Net;
+using S7.Net.Types;
+using SamplePre.Common;
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net;
+using System.Runtime.InteropServices;
+using System.Text;
+using System.Threading.Tasks;
+namespace SamplePre.Communication
+{
+    public class S7PlcCommunicator : ICommunication, IDisposable
+    {
+        public Plc _plc;
+        private readonly string _ipAddress;
+        private readonly int _rack;
+        private readonly int _slot;
+        private readonly CpuType _cpuType;
+
+        /// <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="cpuType">PLC型号</param>
+        /// <param name="ipAddress">IP地址</param>
+        /// <param name="rack">机架号</param>
+        /// <param name="slot">插槽号</param>
+        public S7PlcCommunicator(CpuType cpuType, string ipAddress, int rack = 0, int slot = 1)
+        {
+            _cpuType = cpuType;
+            _ipAddress = ipAddress;
+            _rack = rack;
+            _slot = slot;
+            _plc = new Plc(cpuType, ipAddress, (short)rack, (short)slot);
+        }
+
+        /// <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 (_plc == null)
+                {
+                    _plc = new Plc(_cpuType, _ipAddress, (short)_rack, (short)_slot);
+                }
+
+                _plc.Open();
+                bool connected = _plc.IsConnected;             
+                LoggerHelper.Logger.Info(connected ? "PLC连接成功" : "PLC连接失败");
+                IsConnected = connected;
+            
+                return connected;
+            }
+            catch (Exception ex)
+            {
+                
+                LoggerHelper.Logger.Info($"连接PLC失败: {ex.Message}");
+                IsConnected = false;
+               
+                return false;
+            }
+        }
+
+        /// <summary>
+        /// 断开连接
+        /// </summary>
+        public void Disconnect()
+        {
+            try
+            {
+                if (IsConnected)
+                {
+                    _plc.Close();
+                    IsConnected = false;
+                    LoggerHelper.Logger.Info("PLC连接已断开");
+                   
+                }
+            }
+            catch (Exception ex)
+            {
+                LoggerHelper.Logger.Info($"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[] bytes)
+        {
+
+            try
+            {
+                if (!IsConnected && !Connect())
+                {
+                    return false;
+                }
+
+                byte[] data = bytes.Cast<byte>().ToArray();
+
+
+                _plc.WriteBytes(DataType.DataBlock, Dbno, start, data);
+
+                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;
+            }
+
+
+            
+
+        }
+
+
+        /// <summary>
+        /// 写入数据
+        /// </summary>
+        /// <param name="address">地址（如"M0.0", "DB1.DBW2"）</param>
+        /// <param name="value">要写入的值</param>
+        /// <returns>是否写入成功</returns>
+        public bool WriteSingleData(string address, object value)
+        {
+            try
+            {
+                if (!IsConnected && !Connect())
+                {
+                    return false;
+                }
+
+                _plc.Write(address, value);
+                Console.WriteLine($"写入 {address} 成功: {value}");
+                return true;
+            }
+            catch (Exception ex)
+            {
+                Console.WriteLine($"写入 {address} 失败: {ex.Message}");
+                return false;
+            }
+        }
+
+
+        /// <summary>
+        /// 释放资源
+        /// </summary>
+        public void Dispose()
+        {
+            // 释放托管资源
+            Disconnect();
+            //_plc?.Dispose();
+            _plc = null;
+        }
+
+        ~S7PlcCommunicator()
+        {
+            Dispose();
+        }
+
+    }
+
+   
+}