diff --git a/AppData/ComLib.cs b/AppData/ComLib.cs
index e1c2e1d..af1a26c 100644
--- a/AppData/ComLib.cs
+++ b/AppData/ComLib.cs
@@ -66,6 +66,7 @@ namespace AppData
         public static string redProdMachClock = "NKC:PROD:MACH:CLOCK";
         public static string redProdMachList = "NKC:PROD:MACH:LIST";
         public static string redProdMachStateData = "NKC:PROD:MACH:STATE";
+        public static string redProdMachStateLive = "NKC:PROD:MACH:LIVE";
         public static string redProdReq = "NKC:SERV:BUNKS";
         public static string redProdStatDec = "NKC:PROD:MACH:STATDEC";
 
@@ -487,6 +488,29 @@ namespace AppData
             return currData;
         }
 
+        public static bool setMachLiveStatus(string machine, bool isLive)
+        {
+            string redKey = $"{redProdMachStateLive}:{machine}";
+            string redVal = $"{isLive}";
+            // salvo x 90 sec
+            bool done = memLayer.ML.setRSV(redKey, redVal, 90);
+            return done;
+        }
+
+        public static bool getMachLiveStatus(string machine)
+        {
+            bool isLive = false;
+            /// cerco in redis...
+            string redKey = $"{redProdMachStateLive}:{machine}";
+            string redVal = memLayer.ML.getRSV(redKey);
+            if (!string.IsNullOrEmpty(redVal))
+            {
+                bool.TryParse(redVal, out isLive);
+            }
+            return isLive;
+        }
+
+
         /// <summary>
         /// Salvo in Redis il SUCCESSIVO bunk da lavorare
         /// </summary>
@@ -1914,7 +1938,6 @@ namespace AppData
         public static List<MachineStatData> prodMachStateDataGet()
         {
             List<MachineStatData> answ = new List<MachineStatData>();
-
             string redVal = memLayer.ML.getRSV(redProdMachStateData);
             if (!string.IsNullOrEmpty(redVal))
             {
@@ -1986,11 +2009,11 @@ namespace AppData
                         memLayer.ML.setRSV(clockDriftKey, $"{driftSec}");
                         break;
 
-                    //case "01":
-                    //    // x ora lo ignoro ma so che ora la macchina è ALIVE...
-                    //    break;
-
                     case "01":
+                        // savo status alive
+                        ComLib.setMachLiveStatus(updateRecords.Machine, true);
+                        break;
+
                     default:
                         DLMan.taStatLog.insert(item.DtRecord.AddMilliseconds(driftSec), updateRecords.Machine, item.Station, item.Code, item.Payload, 0);
                         break;
diff --git a/NKC_WF/WebUserControls/cmp_MachSem.ascx b/NKC_WF/WebUserControls/cmp_MachSem.ascx
index 850a829..2c5cd82 100644
--- a/NKC_WF/WebUserControls/cmp_MachSem.ascx
+++ b/NKC_WF/WebUserControls/cmp_MachSem.ascx
@@ -11,7 +11,6 @@
 <asp:HiddenField runat="server" ID="hfCss01" Value="secondary" />
 <asp:HiddenField runat="server" ID="hfCss02" Value="secondary" />
 <asp:HiddenField runat="server" ID="hfCss03" Value="secondary" />
-<asp:HiddenField runat="server" ID="hfLive" Value="false" />
 
 <div class="row" runat="server" id="divSelect">
     <asp:DropDownList runat="server" ID="ddlMachine" CssClass="form-control" AutoPostBack="True" OnSelectedIndexChanged="ddlMachine_SelectedIndexChanged">
@@ -26,7 +25,7 @@
         <asp:Timer ID="timerLoad" runat="server" Interval="2000" OnTick="timerLoad_Tick"></asp:Timer>
         <div class="row small py-0" runat="server" id="divRuntime">
             <div class="col-2 pr-0">
-                <asp:LinkButton runat="server" ID="lbtReset" class="btn btn-info btn-block text-center" OnClick="lbtReset_Click"><i class="fa fa-refresh" aria-hidden="true"></i>&nbsp;<%: hfMachine.Value %> <i class="fa fa-check-circle text-success" aria-hidden="true" runat="server" visible='<%: isLive %>'></i> <i class="fa fa-times-circle text-danger" aria-hidden="true" runat="server" visible='<%: !isLive %>'></i></asp:LinkButton>
+                <asp:LinkButton runat="server" ID="lbtReset" class="btn btn-info btn-block text-center" OnClick="lbtReset_Click"><i class="fa fa-refresh" aria-hidden="true"></i>&nbsp;<%: hfMachine.Value %>&nbsp;<i class="fa fa-link text-success" aria-hidden="true" runat="server" id="icnLiveOk"></i> <i class="fa fa-chain-broken text-danger" aria-hidden="true" runat="server" id="icnLiveKo"></i></asp:LinkButton>
             </div>
             <div class="col-10">
                 <div class="d-flex text-center">
diff --git a/NKC_WF/WebUserControls/cmp_MachSem.ascx.cs b/NKC_WF/WebUserControls/cmp_MachSem.ascx.cs
index 86cb5f6..52d854c 100644
--- a/NKC_WF/WebUserControls/cmp_MachSem.ascx.cs
+++ b/NKC_WF/WebUserControls/cmp_MachSem.ascx.cs
@@ -122,17 +122,6 @@ namespace NKC_WF.WebUserControls
 
         #region Public Methods
 
-        public bool isLive
-        {
-            get
-            {
-                bool answ = false;
-                bool.TryParse(hfLive.Value, out answ);
-                return answ;
-            }
-        }
-
-
         public void doUpdate()
         {
             // verifico status delle 3 parti e mostro relativo semaforo...
@@ -174,8 +163,16 @@ namespace NKC_WF.WebUserControls
                 hfStat03.Value = state03.Descript;
             }
 
-            DS_App.StatusDecodeRow liveState = getState(currState, "LINE");
-            hfLive.Value = $"{liveState != null}";
+            icnLiveOk.Visible = false;
+            icnLiveKo.Visible = false;
+            if (ComLib.getMachLiveStatus(currMachine))
+            {
+                icnLiveOk.Visible = true;
+            }
+            else
+            {
+                icnLiveKo.Visible = true;
+            }
         }
 
         #endregion Public Methods
diff --git a/NKC_WF/WebUserControls/cmp_MachSem.ascx.designer.cs b/NKC_WF/WebUserControls/cmp_MachSem.ascx.designer.cs
index b02de89..64a23e9 100644
--- a/NKC_WF/WebUserControls/cmp_MachSem.ascx.designer.cs
+++ b/NKC_WF/WebUserControls/cmp_MachSem.ascx.designer.cs
@@ -113,15 +113,6 @@ namespace NKC_WF.WebUserControls
         /// </remarks>
         protected global::System.Web.UI.WebControls.HiddenField hfCss03;
 
-        /// <summary>
-        /// Controllo hfLive.
-        /// </summary>
-        /// <remarks>
-        /// Campo generato automaticamente.
-        /// Per la modifica, spostare la dichiarazione di campo dal file di progettazione al file code-behind.
-        /// </remarks>
-        protected global::System.Web.UI.WebControls.HiddenField hfLive;
-
         /// <summary>
         /// Controllo divSelect.
         /// </summary>
@@ -175,5 +166,23 @@ namespace NKC_WF.WebUserControls
         /// Per la modifica, spostare la dichiarazione di campo dal file di progettazione al file code-behind.
         /// </remarks>
         protected global::System.Web.UI.WebControls.LinkButton lbtReset;
+
+        /// <summary>
+        /// Controllo icnLiveOk.
+        /// </summary>
+        /// <remarks>
+        /// Campo generato automaticamente.
+        /// Per la modifica, spostare la dichiarazione di campo dal file di progettazione al file code-behind.
+        /// </remarks>
+        protected global::System.Web.UI.HtmlControls.HtmlGenericControl icnLiveOk;
+
+        /// <summary>
+        /// Controllo icnLiveKo.
+        /// </summary>
+        /// <remarks>
+        /// Campo generato automaticamente.
+        /// Per la modifica, spostare la dichiarazione di campo dal file di progettazione al file code-behind.
+        /// </remarks>
+        protected global::System.Web.UI.HtmlControls.HtmlGenericControl icnLiveKo;
     }
 }