版本更改

CapMachine.Wpf/Services/PPCService.cs

@@ -24,6 +24,7 @@ namespace CapMachine.Wpf.Services
         /// 计算扫描 Task
         /// </summary>
         private static Task CalcTask { get; set; }
+        private static int _scanLoopStarted;
         public ConfigService ConfigService { get; }
 
         private IEventAggregator _EventAggregator { get; set; }
@@ -266,6 +267,11 @@ namespace CapMachine.Wpf.Services
         /// </summary>
         private void RtScanDeviceStart()
         {
+            if (System.Threading.Interlocked.CompareExchange(ref _scanLoopStarted, 1, 0) != 0)
+            {
+                return;
+            }
+
             CalcTask = Task.Run(async () =>
             {
                 while (RtCalcEnable)
@@ -332,7 +338,7 @@ namespace CapMachine.Wpf.Services
             }
             else if (_superheatSubcoolCalculator.TryCalculateSuperheatK(InhPressTag.EngPvValue, InhTempTag.EngPvValue, out var superheatValue, out var superheatErr))
             {
-                Superheat.EngPvValue = superheatValue;
+                Superheat.EngPvValue =Math.Abs(superheatValue) ;
                 updated = true;
             }
             else
@@ -348,7 +354,7 @@ namespace CapMachine.Wpf.Services
             }
             else if (_superheatSubcoolCalculator.TryCalculateSubcoolK(TxvFrPressTag.EngPvValue, TxvFrTempTag.EngPvValue, out var subcoolValue, out var subcoolErr))
             {
-                Subcool.EngPvValue = subcoolValue;
+                Subcool.EngPvValue = Math.Abs(subcoolValue);
                 updated = true;
             }
             else