diff --git a/CMS_CORE_Library/NcThermo.cs b/CMS_CORE_Library/NcThermo.cs
index ec8ff52..f01dbc4 100644
--- a/CMS_CORE_Library/NcThermo.cs
+++ b/CMS_CORE_Library/NcThermo.cs
@@ -634,6 +634,12 @@ namespace CMS_CORE_Library
         /// <returns></returns>
         public abstract CmsError PLC_WRecipeParam(ThermoModels.RecipeParam updtParam);
         /// <summary>
+        /// Confirm/Cancel recipe modifications
+        /// </summary>
+        /// <param name="confirmUpdate">true: HMI --> PLC, false: PLC --> HMI</param>
+        /// <returns></returns>
+        public abstract CmsError PLC_WRecipeEdit(bool confirmUpdate);
+        /// <summary>
         /// Get current Modules Block list
         /// </summary>
         /// <param name="onlyRT">updates only RT parameters (false = update all)</param>
diff --git a/CMS_CORE_Library/S7Net/Nc_S7Net.cs b/CMS_CORE_Library/S7Net/Nc_S7Net.cs
index 22591f2..71bf528 100644
--- a/CMS_CORE_Library/S7Net/Nc_S7Net.cs
+++ b/CMS_CORE_Library/S7Net/Nc_S7Net.cs
@@ -1853,6 +1853,33 @@ namespace CMS_CORE_Library.S7Net
 
             return NO_ERROR;
         }
+        /// <summary>
+        /// Confirm/Cancel recipe modifications
+        /// </summary>
+        /// <param name="confirmUpdate">true: HMI --> PLC, false: PLC --> HMI</param>
+        /// <returns></returns>
+        public override CmsError PLC_WRecipeEdit(bool confirmUpdate)
+        {
+            // se update --> scrivo strobe comando update...
+            if (confirmUpdate)
+            {
+                // Call confirm update
+                CmsError cmsError = PLC_WStrobe(PARAMETER_EDIT_ACK, PARAMETER_EDIT_STROBE, 2);
+                if (cmsError.IsError())
+                    return cmsError;
+            }
+            // altrimenti mando strobe comando cancel...
+            else
+            {
+                // Call cancel update
+                CmsError cmsError = PLC_WStrobe(PARAMETER_EDIT_ACK, PARAMETER_EDIT_STROBE, 3);
+                if (cmsError.IsError())
+                    return cmsError;
+            }
+
+            return NO_ERROR;
+        }
+
         /// <summary>
         /// Get current Modules Block list
         /// </summary>
@@ -1946,7 +1973,7 @@ namespace CMS_CORE_Library.S7Net
                 MoldTemp = S7.Net.Types.Double.FromByteArray(currMem.Skip(34).Take(4).ToArray()),
                 VacuumReadVal = S7.Net.Types.Double.FromByteArray(currMem.Skip(38).Take(4).ToArray()),
                 MouldEnergyOUT = S7.Net.Types.Double.FromByteArray(currMem.Skip(42).Take(4).ToArray()),
-                MouldEnergyIN= S7.Net.Types.Double.FromByteArray(currMem.Skip(46).Take(4).ToArray())
+                MouldEnergyIN = S7.Net.Types.Double.FromByteArray(currMem.Skip(46).Take(4).ToArray())
             };
 
             return NO_ERROR;
@@ -2808,18 +2835,56 @@ namespace CMS_CORE_Library.S7Net
             return NO_ERROR;
         }
 
-        //Read-Write a Byte-Value-List inside the NC. In writing-mode the field "Number" is not required
+        /// <summary>
+        /// Read-Write a SINGLE Byte inside the NC. In writing-mode the field "Number" is not required
+        /// </summary>
+        /// <param name="bWrite"></param>
+        /// <param name="Process"></param>
+        /// <param name="MemType"></param>
+        /// <param name="MemTable"></param>
+        /// <param name="MemIndex"></param>
+        /// <param name="MemByte"></param>
+        /// <param name="Value"></param>
+        /// <returns></returns>
         public override CmsError MEM_RWByte(bool bWrite, int Process, MEMORY_TYPE MemType, int MemTable, int MemIndex, int MemByte, ref byte Value)
         {
-            List<byte> ListValue = new List<byte>() { Value };
-
-            //uses the List method with one-element list
-            CmsError cmsError = MEM_RWByteList(bWrite, Process, MemType, MemTable, MemIndex, MemByte, 1, ref ListValue);
+            //Check if the NC is Connected
+            CmsError cmsError = CheckConnection();
             if (cmsError.IsError())
                 return cmsError;
-            if (ListValue.Count > 0)
+
+            if (MemType != MEMORY_TYPE.Siemens_DB)
             {
-                Value = ListValue.First();
+                return INCORRECT_PARAMETERS_ERROR;
+            }
+
+            cmsError = null;
+
+            if (bWrite)
+            {
+                // try/catch
+                try
+                {
+                    byte[] DB_Byte = new byte[1];
+                    DB_Byte[0] = Value;
+                    currPLC.WriteBytes(DataType.DataBlock, MemTable, MemIndex, DB_Byte);
+                }
+                catch
+                {
+                    return PLC_MEM_CONF_ERROR;
+                }
+            }
+            else
+            {
+                try
+                {
+                    var memByteRead = currPLC.ReadBytes(DataType.DataBlock, MemTable, MemIndex, 1);
+                    Value = memByteRead[0];
+                }
+                catch
+                {
+                    return PLC_MEM_CONF_ERROR;
+                }
             }
 
             return NO_ERROR;
@@ -4391,6 +4456,10 @@ namespace CMS_CORE_Library.S7Net
         internal static MEMORY_CELL PARAMETER_DATA = new MEMORY_CELL(MEMORY_TYPE.Siemens_DB, 600, 20, 8000);
         internal static MEMORY_CELL PARAMETER_RT_DATA = new MEMORY_CELL(MEMORY_TYPE.Siemens_DB, 601, 8, 3200);
 
+        // recipe edit confirmation/cancel strobe/ack
+        internal static MEMORY_CELL PARAMETER_EDIT_ACK = new MEMORY_CELL(MEMORY_TYPE.Siemens_DB, TABLE, 0, 2);
+        internal static MEMORY_CELL PARAMETER_EDIT_STROBE = new MEMORY_CELL(MEMORY_TYPE.Siemens_DB, TABLE, 2, 2);
+
         // aree Moduli
         internal static MEMORY_CELL MODULE_DATA = new MEMORY_CELL(MEMORY_TYPE.Siemens_DB, 602, 18, 2304);
         internal static MEMORY_CELL MODULE_RT_DATA = new MEMORY_CELL(MEMORY_TYPE.Siemens_DB, 603, 12, 1536);
@@ -4418,6 +4487,7 @@ namespace CMS_CORE_Library.S7Net
         internal static MEMORY_CELL MACHINE_GAUGE_DATA = new MEMORY_CELL(MEMORY_TYPE.Siemens_DB, 605, 6, 16);
 
 
+
         internal static MEMORY_CELL NC_WATCHDOG = new MEMORY_CELL(MEMORY_TYPE.Siemens_DB, TABLE, 0, 1);
         internal static MEMORY_CELL ACTIVE_WATCHDOG = new MEMORY_CELL(MEMORY_TYPE.Siemens_DB, TABLE, 2, 1);