diff --git a/MP.MONO.UI/Components/ParamPlot.razor b/MP.MONO.UI/Components/ParamPlot.razor
index 4db4a56..d26a4d1 100644
--- a/MP.MONO.UI/Components/ParamPlot.razor
+++ b/MP.MONO.UI/Components/ParamPlot.razor
@@ -30,16 +30,8 @@
                 <input class="form-control" @bind="@maxRecord" />
                 <span class="input-group-text small">Sample Sec Time</span>
                 <input class="form-control" @bind="@sampleSecMin" />
-
             }
-
         </div>
-        @*@if (showParam)
-            {
-            <div>
-            <b>Num Val</b> <input @bind="@maxRecord" />  <b>Sample sec time</b> <input @bind="@sampleSecMin" />
-            </div>
-            }*@
     </div>
 </div>
 <div class="d-flex">
diff --git a/MP.MONO.UI/Components/ParamPlot.razor.cs b/MP.MONO.UI/Components/ParamPlot.razor.cs
index 8bb43a5..4006a25 100644
--- a/MP.MONO.UI/Components/ParamPlot.razor.cs
+++ b/MP.MONO.UI/Components/ParamPlot.razor.cs
@@ -17,8 +17,14 @@ namespace MP.MONO.UI.Components
         #region Protected Fields
 
         protected DateTime lastRec = DateTime.Now.AddMinutes(-1);
-        protected List<chartJsData.chartJsTSerie> LevelVal = new List<chartJsData.chartJsTSerie>();
-        protected int sampleSecMin = 1;
+
+        protected Dictionary<string, List<chartJsData.chartJsTSerie>> plotData = new Dictionary<string, List<chartJsData.chartJsTSerie>>();
+
+        protected List<chartJsData.chartJsTSerie> LevelVal
+        {
+            get => plotData[SelectedParam] ?? new List<chartJsData.chartJsTSerie>();
+        }
+        protected double sampleSecMin = 1;
 
         #endregion Protected Fields
 
@@ -28,13 +34,6 @@ namespace MP.MONO.UI.Components
 
         #endregion Private Properties
 
-        //protected string cssSel(string ParamName)
-        //{
-        //    string answ = ParamName == SelVal ? "fa-solid fa-chevron-right" : "";
-        //    return answ;
-
-        //}
-
         #region Protected Properties
 
         protected string _selParam { get; set; } = "";
@@ -43,6 +42,10 @@ namespace MP.MONO.UI.Components
 
         protected string? MinVal { get; set; } = null;
 
+        protected Dictionary<string, string> listMinVal = new Dictionary<string, string>();
+        protected Dictionary<string, string> listMaxVal = new Dictionary<string, string>();
+
+
         #endregion Protected Properties
 
         #region Public Properties
@@ -61,8 +64,11 @@ namespace MP.MONO.UI.Components
                 {
                     // salvo
                     _selParam = value;
-                    // resetto TimeSerie
-                    LevelVal = new List<chartJsData.chartJsTSerie>();
+                    // cerco se ho in dictionary...
+                    if (!plotData.ContainsKey(value))
+                    {
+                        plotData.Add(value, new List<chartJsData.chartJsTSerie>());
+                    }
                 }
             }
         }
@@ -86,6 +92,36 @@ namespace MP.MONO.UI.Components
                         // prendo SOLO il dato della TS richiesta
                         if (ListRecords != null)
                         {
+                            // accodo in blocco tutti i valori...
+                            foreach (var item in ListRecords)
+                            {
+                                // cerco se ci sono min/max del valore indicato...
+                                if (!listMinVal.ContainsKey(item.Title))
+                                {
+                                    listMinVal.Add(item.Title, $"{item.MinVal:N0}");
+                                }
+                                if (!listMaxVal.ContainsKey(item.Title))
+                                {
+                                    listMaxVal.Add(item.Title, $"{item.MaxVal:N0}");
+                                }
+                                // verifico dictionary se mancasse...
+                                if (!plotData.ContainsKey(item.Title))
+                                {
+                                    plotData.Add(item.Title, new List<chartJsData.chartJsTSerie>());
+                                }
+                                // ora accodo il valore
+
+                                if (plotData.ContainsKey(item.Title))
+                                {
+                                    plotData[item.Title].Add(new chartJsData.chartJsTSerie() { x = adesso, y = item.ValueNum });
+                                    // verifico limite visualizzazione
+                                    if (plotData[item.Title].Count > maxRecord)
+                                    {
+                                        plotData[item.Title].RemoveRange(0, plotData[item.Title].Count - maxRecord);
+                                    }
+                                }
+                            }
+#if false
                             var newData = ListRecords.Where(x => x.Title == SelectedParam).FirstOrDefault();
                             // lo accodo
                             if (newData != null)
@@ -100,7 +136,8 @@ namespace MP.MONO.UI.Components
                                 {
                                     LevelVal.RemoveRange(0, LevelVal.Count - maxRecord);
                                 }
-                            }
+                            } 
+#endif
                         }
                     }
                     catch