diff --git a/Thermo.Active.NC/NcAdapter.cs b/Thermo.Active.NC/NcAdapter.cs
index d9ed323a..dbd08eca 100644
--- a/Thermo.Active.NC/NcAdapter.cs
+++ b/Thermo.Active.NC/NcAdapter.cs
@@ -1984,11 +1984,7 @@ namespace Thermo.Active.NC
             // scrivo l'abilitazione dei canali...
             foreach (var item in RiskBoardConfig)
             {
-                // FIXME TODO hard limit a 64... da chiarire
-                if (item.IdBoard < 64)
-                {
-                    newData.Add(item.IdBoard, item.NumChannels > 0 ? 1 : 0);
-                }
+                newData.Add(item.IdBoard, item.NumChannels > 0 ? 1 : 0);
             }
             cmsError = numericalControl.PLC_WWarmerConfBoardEnabl(newData);
             if (cmsError.IsError())
@@ -2005,10 +2001,15 @@ namespace Thermo.Active.NC
                 return cmsError;
 
             // recupero parametro VUMin...
-            ushort VUMin = 1; 
+            ushort VUMin = 1;
             cmsError = numericalControl.PLC_RWarmerConfVUMin(ref VUMin);
             if (cmsError.IsError())
                 return cmsError;
+            // check div0!
+            if (VUMin == 0)
+            {
+                VUMin = 1;
+            }
 
             // processo corrente minima!
             var newFloatTData = new Dictionary<int, double>();