更新20260518

Models/PlcConfiguration.cs

@@ -5,6 +5,7 @@
         public string IpAddress { get; set; }
         public int Port { get; set; }
         public byte SlaveId { get; set; }
+        public PlcFloatWordOrder FloatWordOrder { get; set; } = PlcFloatWordOrder.LowWordFirst;
 
         // 硬度
         public ushort HardnessMax { get; set; }
@@ -14,7 +15,8 @@
 
         public ushort HardnessSudu { get; set; }
         public ushort HardnessWeiyi { get; set; }
-  
+        public ushort HardnessLimit { get; set; }
+
         public ushort HardnessForward { get; set; }
         public ushort HardnessBack { get; set; }
 
@@ -67,4 +69,10 @@
         public ushort Dissolution1SampleInterval { get; set; }
         public ushort Dissolution2SampleInterval { get; set; }
     }
+
+    public enum PlcFloatWordOrder
+    {
+        LowWordFirst,
+        HighWordFirst
+    }
 }

Services/ModbusTcpPlcService.cs

@@ -15,6 +15,7 @@ namespace TabletTester2025.Services
 
         private readonly PlcConfiguration _config;
         private readonly SemaphoreSlim _connectLock = new(1, 1);
+        private readonly SemaphoreSlim _ioLock = new(1, 1);
         private TcpClient? _tcpClient;
         private IModbusMaster? _master;
 
@@ -149,10 +150,11 @@ namespace TabletTester2025.Services
 
         private async Task<T> ExecuteAsync<T>(Func<IModbusMaster, Task<T>> action)
         {
-            await EnsureConnectedAsync();
+            await _ioLock.WaitAsync();
-
             try
             {
+                await EnsureConnectedAsync();
+
                 if (_master == null)
                     throw new InvalidOperationException("PLC连接未初始化");
 
@@ -163,9 +165,20 @@ namespace TabletTester2025.Services
                 CloseConnection();
                 throw;
             }
+            finally
+            {
+                _ioLock.Release();
+            }
         }
 
-        private static float RegistersToFloat(ushort highWord, ushort lowWord)
+        private float RegistersToFloat(ushort firstRegister, ushort secondRegister)
+        {
+            return _config.FloatWordOrder == PlcFloatWordOrder.HighWordFirst
+                ? WordsToFloat(firstRegister, secondRegister)
+                : WordsToFloat(secondRegister, firstRegister);
+        }
+
+        private static float WordsToFloat(ushort highWord, ushort lowWord)
         {
             byte[] bytes =
             {
@@ -177,14 +190,15 @@ namespace TabletTester2025.Services
             return BitConverter.ToSingle(bytes, 0);
         }
 
-        private static ushort[] FloatToRegisters(float value)
+        private ushort[] FloatToRegisters(float value)
         {
             byte[] bytes = BitConverter.GetBytes(value);
-            return new[]
+            ushort highWord = (ushort)((bytes[3] << 8) | bytes[2]);
-            {
+            ushort lowWord = (ushort)((bytes[1] << 8) | bytes[0]);
-                (ushort)((bytes[3] << 8) | bytes[2]),
+
-                (ushort)((bytes[1] << 8) | bytes[0])
+            return _config.FloatWordOrder == PlcFloatWordOrder.HighWordFirst
-            };
+                ? new[] { highWord, lowWord }
+                : new[] { lowWord, highWord };
         }
 
         private void CloseConnection()
@@ -200,6 +214,7 @@ namespace TabletTester2025.Services
         {
             CloseConnection();
             _connectLock.Dispose();
+            _ioLock.Dispose();
         }
     }
 

ViewModels/MainViewModel.cs

@@ -73,7 +73,7 @@ namespace TabletTester2025.ViewModels
             ShowDataCommand = new AsyncRelayCommand(async () =>
             {
                 // 用你项目里已有的PLC实例（假设叫 _plcClient）
-                var window = new ShowData(_plc);
+                var window = new ShowData(_plc, _plcConfig);
                 window.Owner = Application.Current.MainWindow;
                 window.ShowDialog();
             });

Views/ShowData.xaml.cs

@@ -1,37 +1,39 @@
 using Microsoft.Win32;
-using Sunny.UI;
 using System;
 using System.Threading;
 using System.Threading.Tasks;
 using System.Windows;
 using System.Windows.Controls;
 using TabletTester2025.Helpers;
+using TabletTester2025.Models;
 using TabletTester2025.Services;
-using static OfficeOpenXml.ExcelErrorValue;
 
 namespace 片剂四用仪.Views
 {
     public partial class ShowData : Window
     {
         private readonly IPlcService _plc;
-        private CancellationTokenSource _cts;
+        private readonly PlcParamMapping[] _paramMappings;
+        private CancellationTokenSource? _cts;
 
-        public ShowData(IPlcService plc)
+        public ShowData(IPlcService plc, PlcConfiguration plcConfig)
         {
             InitializeComponent();
             _plc = plc;
+            _paramMappings = BuildParamMappings(plcConfig);
             Loaded += ShowData_Loaded;
             Closing += ShowData_Closing;
         }
 
         private async void ShowData_Loaded(object sender, RoutedEventArgs e)
         {
-            _cts = new CancellationTokenSource();
+            var cts = new CancellationTokenSource();
+            _cts = cts;
             BindAllTextBoxWriteEvents();
-            await StartPlcReadLoop(_cts.Token);
+            await StartPlcReadLoop(cts.Token);
         }
 
-        private void ShowData_Closing(object sender, System.ComponentModel.CancelEventArgs e)
+        private void ShowData_Closing(object? sender, System.ComponentModel.CancelEventArgs e)
         {
             _cts?.Cancel();
         }
@@ -135,37 +137,51 @@ namespace 片剂四用仪.Views
         }
 
         // ====================== 地址映射表 ======================
-        private readonly PlcParamMapping[] _paramMappings = new[]
+        private static PlcParamMapping[] BuildParamMappings(PlcConfiguration plcConfig)
         {
-            new PlcParamMapping("txt_HardnessSpeed", 300, PlcParamType.Float),
+            return new[]
-            new PlcParamMapping("txt_HardnessDisplacement", 310, PlcParamType.Float),
+            {
-            new PlcParamMapping("txt_HardnessMotorLimit", 298, PlcParamType.Float),
+                new PlcParamMapping("txt_HardnessSpeed", AddressOrDefault(plcConfig.HardnessSudu, 300), PlcParamType.Float),
-            new PlcParamMapping("txt_HardnessDamageThreshold", 400, PlcParamType.Float),
+                new PlcParamMapping("txt_HardnessDisplacement", AddressOrDefault(plcConfig.HardnessWeiyi, 310), PlcParamType.Float),
-          
+                new PlcParamMapping("txt_HardnessMotorLimit", AddressOrDefault(plcConfig.HardnessLimit, 298), PlcParamType.Float),
+                new PlcParamMapping("txt_HardnessDamageThreshold", AddressOrDefault(plcConfig.HardnessPoSun, 400), PlcParamType.Float),
 
-            new PlcParamMapping("txt_BrittlenessTestTime", 410, PlcParamType.Int),
+                new PlcParamMapping("txt_BrittlenessTestTime", AddressOrDefault(plcConfig.FriabilityTestTime, 410), PlcParamType.Int),
-            new PlcParamMapping("txt_PreBrittlenessMass", 412, PlcParamType.Float),
+                new PlcParamMapping("txt_PreBrittlenessMass", ResolveWeightRegister(plcConfig.FriabilityWeightBefore, plcConfig.WeightBefore, 412), PlcParamType.Float),
-            new PlcParamMapping("txt_PostBrittlenessMass", 414, PlcParamType.Float),
+                new PlcParamMapping("txt_PostBrittlenessMass", ResolveWeightRegister(plcConfig.FriabilityWeightAfter, plcConfig.WeightAfter, 414), PlcParamType.Float),
-            new PlcParamMapping("txt_WeightLossRate", 416, PlcParamType.Int),
+                new PlcParamMapping("txt_WeightLossRate", 416, PlcParamType.Int),
 
-            new PlcParamMapping("txt_DisintegrationSpeed", 330, PlcParamType.Float),
+                new PlcParamMapping("txt_DisintegrationSpeed", AddressOrDefault(plcConfig.DisintegrationSpeed, 330), PlcParamType.Float),
-            new PlcParamMapping("txt_DisintegrationTime", 420, PlcParamType.Int),
+                new PlcParamMapping("txt_DisintegrationTime", AddressOrDefault(plcConfig.DisintegrationTime, 420), PlcParamType.Int),
 
-            new PlcParamMapping("txt_DissolutionTime", 430, PlcParamType.Int),
+                new PlcParamMapping("txt_DissolutionTime", AddressOrDefault(plcConfig.Dissolution1Time, 430), PlcParamType.Int),
-            new PlcParamMapping("txt_Dissolution2Time", 440, PlcParamType.Int),
+                new PlcParamMapping("txt_Dissolution2Time", AddressOrDefault(plcConfig.Dissolution2Time, 440), PlcParamType.Int),
-            new PlcParamMapping("txt_Dissolution1SamplingInterval", 432, PlcParamType.Float),
+                new PlcParamMapping("txt_Dissolution1SamplingInterval", AddressOrDefault(plcConfig.Dissolution1SampleInterval, 432), PlcParamType.Float),
-            new PlcParamMapping("txt_Dissolution2SamplingInterval", 442, PlcParamType.Float),
+                new PlcParamMapping("txt_Dissolution2SamplingInterval", AddressOrDefault(plcConfig.Dissolution2SampleInterval, 442), PlcParamType.Float),
 
-           
+                new PlcParamMapping("txt_ForceCoefficient", 1320, PlcParamType.Float),
-            new PlcParamMapping("txt_ForceCoefficient", 1320, PlcParamType.Float),
+                new PlcParamMapping("txt_ForceProtection", 1322, PlcParamType.Float),
-            new PlcParamMapping("txt_ForceProtection", 1322, PlcParamType.Float),
-         
-            new PlcParamMapping("txt_TemperatureDisplay", 1430, PlcParamType.Float),
 
-            new PlcParamMapping("txt_MaxForceCollect", 72, PlcParamType.Float),//读取
+                new PlcParamMapping("txt_TemperatureDisplay", AddressOrDefault(plcConfig.DisintegrationTemp, 1430), PlcParamType.Float),
-            new PlcParamMapping("txt_ForceDisplay", 1314, PlcParamType.Float),//读取
+
-            new PlcParamMapping("txt_TemperatureCoefficient", 1428, PlcParamType.Float),//读取
+                new PlcParamMapping("txt_MaxForceCollect", AddressOrDefault(plcConfig.HardnessMax, 72), PlcParamType.Float),
-        };
+                new PlcParamMapping("txt_ForceDisplay", AddressOrDefault(plcConfig.HardnessShishilizhi, 1314), PlcParamType.Float),
+                new PlcParamMapping("txt_TemperatureCoefficient", 1428, PlcParamType.Float),
+            };
+        }
+
+        private static ushort AddressOrDefault(ushort configuredAddress, ushort fallbackAddress)
+        {
+            return configuredAddress != 0 ? configuredAddress : fallbackAddress;
+        }
+
+        private static ushort ResolveWeightRegister(ushort primaryAddress, ushort compatibleAddress, ushort fallbackAddress)
+        {
+            if (primaryAddress != 0)
+                return primaryAddress;
+
+            return AddressOrDefault(compatibleAddress, fallbackAddress);
+        }
     }
 
     internal class PlcParamMapping

appsettings.json

@@ -7,6 +7,7 @@
     "IpAddress": "192.168.1.10",
     "Port": 502,
     "SlaveId": 1,
+    "FloatWordOrder": "LowWordFirst", // 三菱D寄存器REAL：低字在前，避免参数写入后PLC显示NaN
     //"HardnessValue": 72,
     "HardnessStartCoil": 70, //硬度工位1启动测试M70