diff --git a/MTC_Adapter/MTC/baseUtils.cs b/MTC_Adapter/MTC/baseUtils.cs
index 593685d..9c81cca 100644
--- a/MTC_Adapter/MTC/baseUtils.cs
+++ b/MTC_Adapter/MTC/baseUtils.cs
@@ -382,6 +382,8 @@ namespace MTC
     {
       // init valori default...
       windSize = baseUtils.CRI("countWindSize") > 0 ? baseUtils.CRI("countWindSize") : 60;
+      lTime = new List<DateTime>();
+      lVal = new List<int>();
     }
     /// <summary>
     /// Conteggio elementi
diff --git a/MTC_Adapter/MTC_Adapter/AdapterGeneric.cs b/MTC_Adapter/MTC_Adapter/AdapterGeneric.cs
index 4a96c73..8b2d9a0 100644
--- a/MTC_Adapter/MTC_Adapter/AdapterGeneric.cs
+++ b/MTC_Adapter/MTC_Adapter/AdapterGeneric.cs
@@ -2158,6 +2158,8 @@ namespace MTC_Adapter
       }
       parentForm.dataMonitor_2 = sb2.ToString();
 
+      // gestisco lettura dati manutenzione da PLC...
+      getMtzDataFromPlc();
       // gestisco lettura dati status da PLC...
       getStatusDataFromPlc();
       // gestisco lettura dati analogici da PLC...
@@ -3301,8 +3303,6 @@ namespace MTC_Adapter
       // dati da PC
       mClock.Value = string.Format("{0:yyyy-MM-dd} {0:HH:mm:ss}", DateTime.Now);
 
-      // gestisco lettura dati manutenzione da PLC...
-      getMtzDataFromPlc();
       // reload dati da file...
       reloadDataFromFile();
 
diff --git a/MTC_Adapter/MTC_Adapter/AdapterOsai.cs b/MTC_Adapter/MTC_Adapter/AdapterOsai.cs
index a0c1dc7..21b105c 100644
--- a/MTC_Adapter/MTC_Adapter/AdapterOsai.cs
+++ b/MTC_Adapter/MTC_Adapter/AdapterOsai.cs
@@ -637,7 +637,7 @@ namespace MTC_Adapter
         }
         fatto = true;
       }
-      catch
+      catch(Exception exc)
       { }
       return fatto;
     }