更新

ConeCalorimeter/ViewModels/ConeRadiationSettingsViewModel.cs

@@ -1,5 +1,6 @@
 using System.Diagnostics;
 using System.Globalization;
+using System.Threading;
 using System.Windows.Threading;
 using CommunityToolkit.Mvvm.Input;
 using ConeCalorimeter.Models;
@@ -27,6 +28,8 @@ public sealed class ConeRadiationSettingsViewModel : PageViewModel
     private const double HeatTransferInputMinimum = 0;
     private const double HeatTransferReadMinimum = 0.01;
     private const double HeatTransferMaximum = 20000;
+    private const int TargetTemperatureWriteConfirmationAttempts = 3;
+    private const int TargetTemperatureWriteConfirmationDelayMilliseconds = 80;
     private const int ParameterRefreshReleaseDelayMilliseconds = 500;
     private const ushort AlarmCoil = 91;
     private const ushort CirculatingWaterCoil = 49;
@@ -469,14 +472,37 @@ public sealed class ConeRadiationSettingsViewModel : PageViewModel
             return false;
         }
 
-        if (_tcpDeviceConnectionService.TryWriteInt16(TargetTemperatureRegister, (short)scaledValue))
+        var registerValue = (short)scaledValue;
+        if (TryWriteAndConfirmTargetTemperature(registerValue))
         {
+            _parameterRefreshBlockedUntil = DateTime.UtcNow.AddMilliseconds(ParameterRefreshReleaseDelayMilliseconds);
             TargetTemperatureText = value.ToString("0.#", CultureInfo.InvariantCulture);
+            LastAction = "辐射温度设置成功";
             return true;
         }
 
-        LastAction = "设置辐射温度失败";
-        Debug.WriteLine("Cone radiation target temperature write failed.");
+        LastAction = "辐射温度写入未生效";
+        Debug.WriteLine($"Cone radiation target temperature write was not confirmed. Expected raw D{TargetTemperatureRegister}={registerValue}.");
+        return false;
+    }
+
+    private bool TryWriteAndConfirmTargetTemperature(short registerValue)
+    {
+        for (var attempt = 1; attempt <= TargetTemperatureWriteConfirmationAttempts; attempt++)
+        {
+            if (_tcpDeviceConnectionService.TryWriteInt16(TargetTemperatureRegister, registerValue)
+                && _tcpDeviceConnectionService.TryReadInt16(TargetTemperatureRegister, out var readBackValue)
+                && readBackValue == registerValue)
+            {
+                return true;
+            }
+
+            if (attempt < TargetTemperatureWriteConfirmationAttempts)
+            {
+                Thread.Sleep(TargetTemperatureWriteConfirmationDelayMilliseconds);
+            }
+        }
+
         return false;
     }