diff --git a/Thermo.Active.Core/ThreadsFunctions.cs b/Thermo.Active.Core/ThreadsFunctions.cs
index 3e7f0ca2..3bba3582 100644
--- a/Thermo.Active.Core/ThreadsFunctions.cs
+++ b/Thermo.Active.Core/ThreadsFunctions.cs
@@ -763,6 +763,18 @@ public static class ThreadsFunctions
                     };
 
                     MessageServices.Current.Publish(SEND_THERMO_RECIPE_CHANGED, null, message);
+
+                    // verifico se dal PLC è segnalato che i setpointHMI sono invalidati, nel qual caso INVIO
+                    bool setpointHmiInvalidated = false;
+                    libraryError = ncAdapter.checkSetpointInvalidated(out setpointHmiInvalidated);
+                    if (setpointHmiInvalidated)
+                    {
+                        // pubblico booleana dei setpointHMI invalidati
+                        MessageServices.Current.Publish(SEND_THERMO_RECIPE_SETPOINTHMI_CHANGED, null, setpointHmiInvalidated);
+                        // ora gestisco l'ack della richiesta
+                        libraryError = ncAdapter.doAckSetpointInvalidated();
+                    }
+
                 }
                 else
                     RestoreConnection();
diff --git a/Thermo.Active.Model/Constants.cs b/Thermo.Active.Model/Constants.cs
index 85cd6b0b..686c8649 100644
--- a/Thermo.Active.Model/Constants.cs
+++ b/Thermo.Active.Model/Constants.cs
@@ -327,6 +327,7 @@ namespace Thermo.Active.Model
         public const string SEND_THERMO_RECIPE_FULL = "SEND_THERMO_RECIPE_FULL";
         public const string SEND_THERMO_RECIPE_OVERWIEW = "SEND_THERMO_RECIPE_OVERWIEW";
         public const string SEND_THERMO_RECIPE_CHANGED = "SEND_THERMO_RECIPE_CHANGED";
+        public const string SEND_THERMO_RECIPE_SETPOINTHMI_CHANGED = "SEND_THERMO_RECIPE_SETPOINTHMI_CHANGED";
         public const string SEND_THERMO_MODULE_DATA = "SEND_THERMO_MODULE_DATA";
         public const string SEND_THERMO_WARMERS_DATA = "SEND_THERMO_WARMERS_DATA";
         public const string SEND_THERMO_AREA_DATA = "SEND_THERMO_AREA_DATA";
diff --git a/Thermo.Active.NC/NcAdapter.cs b/Thermo.Active.NC/NcAdapter.cs
index 8cfd783d..7f4778e4 100644
--- a/Thermo.Active.NC/NcAdapter.cs
+++ b/Thermo.Active.NC/NcAdapter.cs
@@ -272,7 +272,7 @@ namespace Thermo.Active.NC
                 return answ;
             }
         }
-        private static bool ThermoParamHmiInvalidated
+        private static bool ThermoSetpointHmiInvalidated
         {
             get
             {
@@ -1358,7 +1358,19 @@ namespace Thermo.Active.NC
         }
 
 
-        public CmsError WriteM154Ack(int processId)
+        public CmsError checkSetpointInvalidated(out bool setpointHmiInvalidated)
+        {
+            setpointHmiInvalidated = ThermoSetpointHmiInvalidated;
+            return NO_ERROR;
+        }
+
+        public CmsError doAckSetpointInvalidated()
+        {
+            numericalControl.PLC_WAckSetpointInvalidated();
+            return NO_ERROR;
+        }
+
+            public CmsError WriteM154Ack(int processId)
         {
             return numericalControl.PLC_W154ManageAck(processId);
         }
diff --git a/Thermo.Active/Listeners/ListenersHandler.cs b/Thermo.Active/Listeners/ListenersHandler.cs
index 69fd6509..ec75eaa5 100644
--- a/Thermo.Active/Listeners/ListenersHandler.cs
+++ b/Thermo.Active/Listeners/ListenersHandler.cs
@@ -100,6 +100,10 @@ namespace Thermo.Active.Listeners
             {
                 SignalRListener.SendThermoRecipeChangedData(a);
             }));
+            infos.Add(MessageServices.Current.Subscribe(SEND_THERMO_RECIPE_SETPOINTHMI_CHANGED, (a, b) =>
+            {
+                SignalRListener.SendThermoSetpointHmiInvalidated(a);
+            }));
             infos.Add(MessageServices.Current.Subscribe(SEND_THERMO_MODULE_DATA, (a, b) =>
             {
                 SignalRListener.SendThermoModulesData(a);
diff --git a/Thermo.Active/Listeners/SignalR/SignalRListener.cs b/Thermo.Active/Listeners/SignalR/SignalRListener.cs
index 54119fbc..330a6e7a 100644
--- a/Thermo.Active/Listeners/SignalR/SignalRListener.cs
+++ b/Thermo.Active/Listeners/SignalR/SignalRListener.cs
@@ -299,6 +299,21 @@ namespace Thermo.Active.Listeners.SignalR
                 context.Clients.Group("ncData").recipeChangedData(currMessage);
             }
         }
+
+        public static void SendThermoSetpointHmiInvalidated(object message)
+        {
+            bool currMessage = false;
+            bool.TryParse(message.ToString(), out currMessage);
+            if (lastSetpointHmiInvalid == null || currMessage != lastSetpointHmiInvalid)
+            {
+                // salvo update
+                lastSetpointHmiInvalid = currMessage;
+                var context = GlobalHost.ConnectionManager.GetHubContext<NcHub>();
+                context.Clients.Group("ncData").setpointHmiInvalid(currMessage);
+            }
+        }
+
+
         public static void SendThermoModulesData(object modules)
         {
             Dictionary<int, DTOModulesBlock> currModules = modules as Dictionary<int, DTOModulesBlock>;
@@ -477,7 +492,7 @@ namespace Thermo.Active.Listeners.SignalR
             if (diffAxisData.Count > 0)
             {
                 // salvo update CLONANDO
-                LastAxisInfoData= currInfoAxes.Keys.ToDictionary(_ => _, _ => currInfoAxes[_].Clone());
+                LastAxisInfoData = currInfoAxes.Keys.ToDictionary(_ => _, _ => currInfoAxes[_].Clone());
                 var context = GlobalHost.ConnectionManager.GetHubContext<NcHub>();
                 context.Clients.Group("ncData").axisInfo(diffAxisData);
             }
@@ -549,6 +564,7 @@ namespace Thermo.Active.Listeners.SignalR
             // Send THERMO Recipe data
             group.recipeFullData(LastRecipeFullData);
             group.recipeOverData(LastRecipeOverData);
+            group.setpointHmiInvalid();
             // Send THERMO Modules data
             group.modulesData(LastModulesData);
             // Send THERMO Warmers data
diff --git a/Thermo.Active/Listeners/SignalRStaticObjects.cs b/Thermo.Active/Listeners/SignalRStaticObjects.cs
index 3ed9fb28..df07bf23 100644
--- a/Thermo.Active/Listeners/SignalRStaticObjects.cs
+++ b/Thermo.Active/Listeners/SignalRStaticObjects.cs
@@ -35,6 +35,7 @@ namespace Thermo.Active.Listeners
         // Oggetti specifici per THERMO (1° definizione)
         public static Dictionary<string, DTORecipeParam> LastRecipeFullData = new Dictionary<string, DTORecipeParam>();
         public static Dictionary<RecipeSection, RecipeCatStatus> LastRecipeOverData = new Dictionary<RecipeSection, RecipeCatStatus>();
+        public static bool? lastSetpointHmiInvalid = null;
         public static bool? recipeHasChanged = null;
         public static Dictionary<int, DTOModulesBlock> LastModulesData = new Dictionary<int, DTOModulesBlock>();
         public static Dictionary<int, DTOWarmers> LastWarmersData = new Dictionary<int, DTOWarmers>();