diff --git a/CMS_CORE_Library/S7Net/Nc_S7Net.cs b/CMS_CORE_Library/S7Net/Nc_S7Net.cs
index 7389d8c..39fa7b1 100644
--- a/CMS_CORE_Library/S7Net/Nc_S7Net.cs
+++ b/CMS_CORE_Library/S7Net/Nc_S7Net.cs
@@ -3084,7 +3084,7 @@ namespace CMS_CORE_Library.S7Net
         public override CmsError PLC_RWarmerConfVUMin(ref ushort VUmin)
         {
             // leggo da 513.0 --> default 210
-            VUmin = 210;
+            VUmin = 230;
             List<byte> currMem = new List<byte>();
 
             // read actual data on memory...