diff --git a/IOB-UT-NEXT/ToMapo.cs b/IOB-UT-NEXT/ToMapo.cs
index 0aac33ec..7f3ef95b 100644
--- a/IOB-UT-NEXT/ToMapo.cs
+++ b/IOB-UT-NEXT/ToMapo.cs
@@ -405,12 +405,12 @@ namespace IOB_UT_NEXT
         /// <summary>
         /// Dictionary dei nomi da cercare come "endsWith" a cui applicare la soglia indicata
         /// </summary>
-        public Dictionary<string, int> paramsEndThresh { get; set; } = new Dictionary<string, int>();
+        public Dictionary<string, float> paramsEndThresh { get; set; } = new Dictionary<string, float>();
 
         /// <summary>
         /// Dictionary dei nomi da cercare come "contains" a cui applicare la soglia indicata
         /// </summary>
-        public Dictionary<string, int> paramsContainsThresh { get; set; } = new Dictionary<string, int>();
+        public Dictionary<string, float> paramsContainsThresh { get; set; } = new Dictionary<string, float>();
 
         /// <summary>
         /// Indica se il ping sia un criterio valido x determinare powerON impianto
diff --git a/IOB-WIN-NEXT/Iob/MTConnect.cs b/IOB-WIN-NEXT/Iob/MTConnect.cs
index e280ace0..a4eb03ad 100644
--- a/IOB-WIN-NEXT/Iob/MTConnect.cs
+++ b/IOB-WIN-NEXT/Iob/MTConnect.cs
@@ -525,7 +525,7 @@ namespace IOB_WIN_NEXT.Iob
                         // provo a creare oggetot in memoria...
                         List<machDataItem> elencoDataItems = new List<machDataItem>();
                         int dSamplePeriod = 0;
-                        int threshDBand = 0;
+                        float threshDBand = 0;
                         string uuid = "";
                         var currDataItem = formatDataItem(ref dSamplePeriod, ref threshDBand, ref uuid, newValue);
                         // aggiungo
@@ -622,7 +622,7 @@ namespace IOB_WIN_NEXT.Iob
                     {
                         List<machDataItem> elencoDataItems = new List<machDataItem>();
                         int dSamplePeriod = 0;
-                        int threshDBand = 0;
+                        float threshDBand = 0;
                         string uuid = "";
                         var currDataItem = formatDataItem(ref dSamplePeriod, ref threshDBand, ref uuid, newValue);
                         // aggiungo
@@ -688,7 +688,7 @@ namespace IOB_WIN_NEXT.Iob
             machDataItem currMapoDataItem = null;
             List<machDataItem> elencoDataItems = new List<machDataItem>();
             int dSamplePeriod = 0;
-            int threshDBand = 0;
+            float threshDBand = 0;
             string uuid = "";
             if (document != null)
             {
@@ -1195,7 +1195,7 @@ namespace IOB_WIN_NEXT.Iob
         /// <param name="uuid"></param>
         /// <param name="DISample"></param>
         /// <returns></returns>
-        private MtcDataItemExt formatDataItem(ref int dSamplePeriod, ref int threshDBand, ref string uuid, MTConnectStreams.Sample DISample)
+        private MtcDataItemExt formatDataItem(ref int dSamplePeriod, ref float threshDBand, ref string uuid, MTConnectStreams.Sample DISample)
         {
             // creo il nuovo dataitem da sample...
             MTConnectDevices.DataItem newDataItem = new MTConnectDevices.DataItem()
@@ -1219,7 +1219,7 @@ namespace IOB_WIN_NEXT.Iob
         /// <param name="uuid"></param>
         /// <param name="DIGen"></param>
         /// <returns></returns>
-        private MtcDataItemExt formatDataItem(ref int dSamplePeriod, ref int threshDBand, ref string uuid, MTConnectStreams.DataItem DIGen)
+        private MtcDataItemExt formatDataItem(ref int dSamplePeriod, ref float threshDBand, ref string uuid, MTConnectStreams.DataItem DIGen)
         {
             // creo il nuovo dataitem da sample...
             MTConnectDevices.DataItem newDataItem = new MTConnectDevices.DataItem()
@@ -1241,7 +1241,7 @@ namespace IOB_WIN_NEXT.Iob
         /// <param name="uuid"></param>
         /// <param name="dataItem"></param>
         /// <returns></returns>
-        private MtcDataItemExt formatDataItem(ref int dSamplePeriod, ref int threshDBand, ref string uuid, MTConnectDevices.DataItem dataItem)
+        private MtcDataItemExt formatDataItem(ref int dSamplePeriod, ref float threshDBand, ref string uuid, MTConnectDevices.DataItem dataItem)
         {
             MtcDataItemExt currDataItem;
             // uuid e parametri secondo categoria...
diff --git a/IOB-WIN-NEXT/IobOpc/OpcUa.cs b/IOB-WIN-NEXT/IobOpc/OpcUa.cs
index 3c7eadf8..4c330408 100644
--- a/IOB-WIN-NEXT/IobOpc/OpcUa.cs
+++ b/IOB-WIN-NEXT/IobOpc/OpcUa.cs
@@ -913,8 +913,11 @@ namespace IOB_WIN_NEXT.IobOpc
                                                 string varDef = item.Value.memAddr.Substring(iPos + 1);
                                                 string convVal = ConvBArr(rByte, varDef, opcUaParams.memDelim);
                                                 // metto in array currData...
-                                                upsertKey(item.Key, convVal);
-                                                accodaFLog($"mMapRead | {item.Key} | {convVal}", qEncodeFLog(item.Key, convVal));
+                                                if (upsertKey(item.Key, convVal))
+                                                {
+                                                    // accodo se variato!
+                                                    accodaFLog($"mMapRead | {item.Key} | {convVal}", qEncodeFLog(item.Key, convVal));
+                                                }
                                             }
                                         }
                                     }
@@ -940,8 +943,11 @@ namespace IOB_WIN_NEXT.IobOpc
                                                 string varDef = item.Value.memAddr.Substring(iPos + 1);
                                                 string convVal = ConvBArr(rByte, varDef, opcUaParams.memDelim);
                                                 // metto in array currData...
-                                                upsertKey(item.Key, convVal);
-                                                accodaFLog($"mMapRead | {item.Key} | {convVal}", qEncodeFLog(item.Key, convVal));
+                                                if (upsertKey(item.Key, convVal))
+                                                {
+                                                    // accodo se variato!
+                                                    accodaFLog($"mMapRead | {item.Key} | {convVal}", qEncodeFLog(item.Key, convVal));
+                                                }
                                             }
                                         }
                                     }
@@ -1475,7 +1481,7 @@ namespace IOB_WIN_NEXT.IobOpc
                         try
                         {
                             int dSamplePeriod = 0;
-                            int threshDBand = 0;
+                            float threshDBand = 0;
                             uuid = "";
                             var currDataItem = formatDataItem(ref dSamplePeriod, ref threshDBand, ref uuid, dataItem);
                             // sistemo valore/periodo
@@ -2149,7 +2155,7 @@ namespace IOB_WIN_NEXT.IobOpc
                     subscribedItems = UA_ref.SubscribeToDataChanges(selectedItemList);
                     // aggiungo come DataItems
                     int dSamplePeriod = 0;
-                    int threshDBand = 0;
+                    float threshDBand = 0;
                     string uuid = "";
                     foreach (var item in subscribedItems)
                     {
@@ -2246,7 +2252,7 @@ namespace IOB_WIN_NEXT.IobOpc
         /// <param name="uuid"></param>
         /// <param name="dataItem"></param>
         /// <returns></returns>
-        private OpcUaDataItemExt formatDataItem(ref int dSamplePeriod, ref int threshDBand, ref string uuid, Opc.Ua.Client.MonitoredItem dataItem)
+        private OpcUaDataItemExt formatDataItem(ref int dSamplePeriod, ref float threshDBand, ref string uuid, Opc.Ua.Client.MonitoredItem dataItem)
         {
             OpcUaDataItemExt currDataItem;
             // calcolo parametri secondo conf UniqueID