diff --git a/IOB-WIN/IobFanuc.cs b/IOB-WIN/IobFanuc.cs
index 8d4c74ec..e78420fd 100644
--- a/IOB-WIN/IobFanuc.cs
+++ b/IOB-WIN/IobFanuc.cs
@@ -202,30 +202,37 @@ namespace IOB_WIN
     public override void readSemafori()
     {
       base.readSemafori();
-
-      if (verboseLog) lg.Info("inizio read semafori");
-      parentForm.sIN = Semaforo.SV;
-      // leggo SEMAFORI, leggo da Y8 ...leggo 3 bit in Y8..Y10  HARD CODED, rendere parametrico!!!
-      byte[] MemBlock = new byte[4];
-      // Red: Y8.4 | Yellow: Y8.5 | Green Y8.6 | WrkZone Y8.7 | All DoorsClosed: Y10.5
-      int memIndex = 8;
-      inizio = DateTime.Now;
-      FanucMemRW(R, FANUC.MemType.Y, memIndex, ref MemBlock);
-      if (utils.CRB("recTime")) TimingData.addResult(string.Format("R{0}-Y", MemBlock.Length), DateTime.Now.Subtract(inizio).Ticks);
-      // riporto!
-      Buffer.BlockCopy(MemBlock, 0, RawInput, 0, 4);
-      // ora mi leggo 2 byte in area X... HARD CODED, rendere parametrico...
-      MemBlock = new byte[2];
-      // GESTIONE memoria endcycle
-      // la variabile X7.0 (da 1 a 0) oppure la X7.1 (da 0 a 1) indica il CONTAPEZZI --> copio 2 byte!
-      inizio = DateTime.Now;
-      FanucMemRW(R, FANUC.MemType.X, 6, ref MemBlock);
-      if (utils.CRB("recTime")) TimingData.addResult(string.Format("R{0}-X", MemBlockF.Length), DateTime.Now.Subtract(inizio).Ticks);
-      // riporto!
-      Buffer.BlockCopy(MemBlock, 0, RawInput, 4, 2);
-      if (verboseLog) lg.Info(string.Format("RawInput: {0}", utils.binaryForm((int)RawInput[0])));
-      // salvo il solo BYTE dell'input decifrando il semaforo... 
-      decodeToBitmap();
+      try
+      {
+        if (verboseLog) lg.Info("inizio read semafori");
+        parentForm.sIN = Semaforo.SV;
+        // leggo SEMAFORI, leggo da Y8 ...leggo 3 bit in Y8..Y10  HARD CODED, rendere parametrico!!!
+        byte[] MemBlock = new byte[4];
+        // Red: Y8.4 | Yellow: Y8.5 | Green Y8.6 | WrkZone Y8.7 | All DoorsClosed: Y10.5
+        int memIndex = 8;
+        inizio = DateTime.Now;
+        FanucMemRW(R, FANUC.MemType.Y, memIndex, ref MemBlock);
+        if (utils.CRB("recTime")) TimingData.addResult(string.Format("R{0}-Y", MemBlock.Length), DateTime.Now.Subtract(inizio).Ticks);
+        // riporto!
+        Buffer.BlockCopy(MemBlock, 0, RawInput, 0, 4);
+        // ora mi leggo 2 byte in area X... HARD CODED, rendere parametrico...
+        MemBlock = new byte[2];
+        // GESTIONE memoria endcycle
+        // la variabile X7.0 (da 1 a 0) oppure la X7.1 (da 0 a 1) indica il CONTAPEZZI --> copio 2 byte!
+        inizio = DateTime.Now;
+        FanucMemRW(R, FANUC.MemType.X, 6, ref MemBlock);
+        if (utils.CRB("recTime")) TimingData.addResult(string.Format("R{0}-X", MemBlockF.Length), DateTime.Now.Subtract(inizio).Ticks);
+        // riporto!
+        Buffer.BlockCopy(MemBlock, 0, RawInput, 4, 2);
+        if (verboseLog) lg.Info(string.Format("RawInput: {0}", utils.binaryForm((int)RawInput[0])));
+        // salvo il solo BYTE dell'input decifrando il semaforo... 
+        decodeToBitmap();
+      }
+      catch (Exception exc)
+      {
+        lg.Error(string.Format("Eccezione in readSemafori:{0}{1}", Environment.NewLine, exc));
+        connectionOk = false;
+      }
     }
     /// <summary>
     /// Effettua decodifica aree memoria alla bitmap usata x MAPO
@@ -299,6 +306,7 @@ namespace IOB_WIN
       catch (Exception exc)
       {
         lg.Error(string.Format("Eccezione in recupero PRG NAME MAIN:{0}{1}", Environment.NewLine, exc));
+        connectionOk = false;
       }
       return prgName;
     }
@@ -335,6 +343,7 @@ namespace IOB_WIN
       catch (Exception exc)
       {
         lg.Error(exc, "Errore in getSysInfo");
+        connectionOk = false;
       }
       return outVal;
     }
@@ -395,6 +404,7 @@ namespace IOB_WIN
         catch (Exception exc)
         {
           lg.Error(exc, "Errore in contapezzi FANUC");
+          connectionOk = false;
         }
       }
     }
@@ -429,6 +439,7 @@ namespace IOB_WIN
         catch (Exception exc)
         {
           lg.Error(exc, "Errore in process Mode G43");
+          connectionOk = false;
         }
       }
     }
diff --git a/IOB-WIN/IobGeneric.cs b/IOB-WIN/IobGeneric.cs
index f46eecbe..4de6124e 100644
--- a/IOB-WIN/IobGeneric.cs
+++ b/IOB-WIN/IobGeneric.cs
@@ -1410,7 +1410,14 @@ namespace IOB_WIN
       string currPrgName = "";
       if (!DemoIn)
       {
-        currPrgName = getPrgName();
+        if (connectionOk)
+        {
+          currPrgName = getPrgName();
+        }
+        else
+        {
+          lg.Error("Errore connessione mancante x getPrgName");
+        }
       }
       else
       {
@@ -1437,7 +1444,14 @@ namespace IOB_WIN
         Dictionary<string, string> currSysInfo = new Dictionary<string, string>();
         if (!DemoIn)
         {
-          currSysInfo = getSysInfo();
+          if (connectionOk)
+          {
+            currSysInfo = getSysInfo();
+          }
+          else
+          {
+            lg.Error("Errore connessione mancante x getSysInfo");
+          }
         }
         else
         {
@@ -1520,7 +1534,14 @@ namespace IOB_WIN
         Dictionary<string, string> currDynData = new Dictionary<string, string>();
         if (!DemoIn)
         {
-          currDynData = getDynData();
+          if (connectionOk)
+          {
+            currDynData = getDynData();
+          }
+          else
+          {
+            lg.Error("Errore connessione mancante x getDynData");
+          }
         }
         else
         {
@@ -1553,7 +1574,15 @@ namespace IOB_WIN
         Dictionary<string, string> currOverride = new Dictionary<string, string>();
         if (!DemoIn)
         {
-          currOverride = getOverrides();
+
+          if (connectionOk)
+          {
+            currOverride = getOverrides();
+          }
+          else
+          {
+            lg.Error("Errore connessione mancante x getOverrides");
+          }
         }
         else
         {
diff --git a/Jenkinsfile b/Jenkinsfile
index f55fa44a..d5acca84 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -14,7 +14,7 @@ pipeline {
 
       /* calcolo numero versione... diverso x branch MASTER/DEVELOP */
       script {
-        withEnv(['NEXT_BUILD_NUMBER=207']) {
+        withEnv(['NEXT_BUILD_NUMBER=208']) {
           // env.versionNumber = VersionNumber(versionNumberString : '1.17.${BUILD_DATE_FORMATTED, "yyMM"}.${BUILDS_ALL_TIME}', projectStartDate : '2006-01-01', skipFailedBuilds: true)
           env.versionNumber = VersionNumber(versionNumberString : '1.17.${BUILD_DATE_FORMATTED, "yyMM"}.${BUILDS_ALL_TIME}', projectStartDate : '2006-01-01', skipFailedBuilds: true, overrideBuildsAllTime: '${NEXT_BUILD_NUMBER}')
           env.APP_NAME = 'MAPO-IOB-WIN'