diff --git a/CMS_CORE_Library/S7Net/Nc_S7Net.cs b/CMS_CORE_Library/S7Net/Nc_S7Net.cs
index d482692..fe96f44 100644
--- a/CMS_CORE_Library/S7Net/Nc_S7Net.cs
+++ b/CMS_CORE_Library/S7Net/Nc_S7Net.cs
@@ -2108,7 +2108,9 @@ namespace CMS_CORE_Library.S7Net
             int memIndex = 0;
             int packSize = 20;
 
-            bool writeSingle = newParameters.Count < 30;
+            // 2020.08.07
+            // limite a 5 parametri x scrivere tutto (era 30)
+            bool writeSingle = newParameters.Count < 5;
 
             // leggo da PLC a array di byte di appoggio...
             libraryError = MEM_RWByteList(R, 0, PARAMETER_DATA.MemType, PARAMETER_DATA.Address, PARAMETER_DATA.SubAddress, 0, PARAMETER_DATA.Size, ref currMem);