diff --git a/MTC_Adapter/MTC_Adapter/AdapterOsai.cs b/MTC_Adapter/MTC_Adapter/AdapterOsai.cs
index c6f48e2..d9a5033 100644
--- a/MTC_Adapter/MTC_Adapter/AdapterOsai.cs
+++ b/MTC_Adapter/MTC_Adapter/AdapterOsai.cs
@@ -795,7 +795,7 @@ namespace MTC_Adapter
                             try
                             {
                                 // aggiorno vettore allarmi x intero!
-                                Buffer.BlockCopy(MemBlock, i, AlarmFlags, i, MemBlock.Length);
+                                Buffer.BlockCopy(MemBlock, 0, AlarmFlags, i, MemBlock.Length);
                             }
                             catch (Exception exc)
                             {