更新

COFTester/ViewModels/MainViewModel.cs

@@ -116,9 +116,11 @@ public sealed class MainViewModel : ObservableObject, IDisposable
     private IReadOnlyList<RawSampleRecord> _lastCompletedSamples = Array.Empty<RawSampleRecord>();
     private bool _isShowingHistoricalRun;
     private bool _deviceConnectionFailureLogged;
+    private bool _isInitializingDeviceConnection;
     private bool _isReadingFrame;
     private bool _isPlcCommandBusy;
     private bool _isSyncingRecipeFromPlc;
+    private bool _activeRunStartedByPlc;
     private MachineRuntimeState _machineRuntimeState = MachineRuntimeState.Idle;
     private string _plcCommandSummary = "等待 PLC 控制指令。";
 
@@ -582,6 +584,13 @@ public sealed class MainViewModel : ObservableObject, IDisposable
 
     private async Task InitializeDeviceConnectionAsync()
     {
+        if (_isInitializingDeviceConnection)
+        {
+            return;
+        }
+
+        _isInitializingDeviceConnection = true;
+
         try
         {
             await _deviceConnectionService.ConnectAsync();
@@ -609,6 +618,7 @@ public sealed class MainViewModel : ObservableObject, IDisposable
         }
         catch (Exception ex)
         {
+            _deviceConnectionService.Disconnect();
             DeviceReconnectCount++;
 
             if (!_deviceConnectionFailureLogged)
@@ -629,10 +639,19 @@ public sealed class MainViewModel : ObservableObject, IDisposable
 
             _deviceReconnectTimer.Start();
         }
+        finally
+        {
+            _isInitializingDeviceConnection = false;
+        }
     }
 
     private async void OnDeviceReconnectTimerTick(object? sender, EventArgs e)
     {
+        if (_isInitializingDeviceConnection)
+        {
+            return;
+        }
+
         if (_deviceConnectionService.IsConnected)
         {
             _deviceReconnectTimer.Stop();
@@ -642,13 +661,21 @@ public sealed class MainViewModel : ObservableObject, IDisposable
         await InitializeDeviceConnectionAsync();
     }
 
-    private void StartOrResume()
+    private async void StartOrResume()
     {
         if (!TryValidateStartOrResume())
         {
             return;
         }
 
+        if (_machineRuntimeState == MachineRuntimeState.Paused && _activeRunStartedByPlc)
+        {
+            if (!await ExecutePlcPulseCommandAsync("继续", CoilStart, updateLocalState: false))
+            {
+                return;
+            }
+        }
+
         StartOrResumeCore();
     }
 
@@ -669,7 +696,7 @@ public sealed class MainViewModel : ObservableObject, IDisposable
         return false;
     }
 
-    private void StartOrResumeCore()
+    private void StartOrResumeCore(bool startedByPlc = false)
     {
         var isRecoveringActiveRun = _machineRuntimeState == MachineRuntimeState.Interlocked && HasRecoverableActiveRunContext();
 
@@ -678,6 +705,7 @@ public sealed class MainViewModel : ObservableObject, IDisposable
         {
             _activeRunId = Guid.NewGuid();
             _activeRecipeSnapshot = TestRecipeSnapshot.FromRecipe(Recipe);
+            _activeRunStartedByPlc = startedByPlc;
             _displayedRecipeSnapshot = _activeRecipeSnapshot;
             _isShowingHistoricalRun = false;
             _currentRunSamples.Clear();
@@ -711,12 +739,14 @@ public sealed class MainViewModel : ObservableObject, IDisposable
         }
         else if (isRecoveringActiveRun)
         {
+            _activeRunStartedByPlc |= startedByPlc;
             _isShowingHistoricalRun = false;
             _displayedRecipeSnapshot = _activeRecipeSnapshot;
             AddInfoEvent($"试验通信恢复后继续运行，已保留 {_currentRunSamples.Count} 个采样点。");
         }
         else
         {
+            _activeRunStartedByPlc |= startedByPlc;
             AddInfoEvent("试验继续运行。");
         }
 
@@ -728,8 +758,16 @@ public sealed class MainViewModel : ObservableObject, IDisposable
         RaiseStatusProperties();
     }
 
-    private void Pause()
+    private async void Pause()
     {
+        if (_activeRunStartedByPlc)
+        {
+            if (!await ExecutePlcPulseCommandAsync("暂停", CoilStop, updateLocalState: false))
+            {
+                return;
+            }
+        }
+
         _timer.Stop();
         _machineRuntimeState = MachineRuntimeState.Paused;
         MachineState = "暂停";
@@ -783,7 +821,7 @@ public sealed class MainViewModel : ObservableObject, IDisposable
 
         if (await ExecutePlcPulseCommandAsync("启动", CoilStart, updateLocalState: false))
         {
-            StartOrResumeCore();
+            StartOrResumeCore(startedByPlc: true);
         }
     }
 
@@ -932,6 +970,7 @@ public sealed class MainViewModel : ObservableObject, IDisposable
         _lastCompletedRecipeSnapshot = _activeRecipeSnapshot ?? TestRecipeSnapshot.FromRecipe(Recipe);
         _lastCompletedSamples = _currentRunSamples.ToArray();
         PersistLastCompletedRun();
+        ResetActiveRunContext();
         SelectedRunRecord = record;
         NextRunIndex++;
         UpdateDerivedValues();
@@ -1280,6 +1319,7 @@ public sealed class MainViewModel : ObservableObject, IDisposable
     {
         _activeRunId = Guid.Empty;
         _activeRecipeSnapshot = null;
+        _activeRunStartedByPlc = false;
         _currentRunSamples.Clear();
     }
 
@@ -1357,12 +1397,19 @@ public sealed class MainViewModel : ObservableObject, IDisposable
         try
         {
             var master = _deviceConnectionService.Master;
-            Recipe.SledMassGrams = await ReadFloatHoldingRegisterAsync(master, RegisterSledMassGrams);
-            Recipe.LiftSpeedMmPerMin = await ReadFloatHoldingRegisterAsync(master, RegisterLiftSpeed);
-            Recipe.LiftDisplacementMm = await ReadFloatHoldingRegisterAsync(master, RegisterLiftDisplacement);
-            Recipe.SpeedMmPerMin = await ReadFloatHoldingRegisterAsync(master, RegisterHorizontalSpeed);
-            Recipe.TravelMm = await ReadFloatHoldingRegisterAsync(master, RegisterHorizontalDisplacement);
-            Recipe.ReplicateCount = Math.Clamp((int)Math.Round(await ReadFloatHoldingRegisterAsync(master, RegisterReplicateCount)), 0, 1);
+            var sledMassGrams = await ReadFloatHoldingRegisterAsync(master, RegisterSledMassGrams);
+            var liftSpeedMmPerMin = await ReadFloatHoldingRegisterAsync(master, RegisterLiftSpeed);
+            var liftDisplacementMm = await ReadFloatHoldingRegisterAsync(master, RegisterLiftDisplacement);
+            var speedMmPerMin = await ReadFloatHoldingRegisterAsync(master, RegisterHorizontalSpeed);
+            var travelMm = await ReadFloatHoldingRegisterAsync(master, RegisterHorizontalDisplacement);
+            var replicateCount = Math.Clamp((int)Math.Round(await ReadFloatHoldingRegisterAsync(master, RegisterReplicateCount)), 0, 1);
+
+            Recipe.SledMassGrams = sledMassGrams;
+            Recipe.LiftSpeedMmPerMin = liftSpeedMmPerMin;
+            Recipe.LiftDisplacementMm = liftDisplacementMm;
+            Recipe.SpeedMmPerMin = speedMmPerMin;
+            Recipe.TravelMm = travelMm;
+            Recipe.ReplicateCount = replicateCount;
         }
         finally
         {