diff --git a/IOB-WIN/AdapterForm.cs b/IOB-WIN/AdapterForm.cs
index bd35b0b5..bb046f56 100644
--- a/IOB-WIN/AdapterForm.cs
+++ b/IOB-WIN/AdapterForm.cs
@@ -281,7 +281,7 @@ namespace IOB_WIN
         }
         else
         {
-          displayTaskAndLog("Server OFFLINE");
+          displayTaskAndLog("AdapterForm: Server OFFLINE");
         }
       }
       catch (Exception exc)
@@ -820,7 +820,7 @@ namespace IOB_WIN
     /// Visualizzazione stato di comunicazione attiva con PLC:
     /// 0 = NO PING
     /// 1 = PING OK
-    /// 2 = MP/IO OK
+    /// 2 = IOB enabled
     /// </summary>
     public int commSrvActive
     {
diff --git a/IOB-WIN/App.config b/IOB-WIN/App.config
index 1ae3d120..7b873f19 100644
--- a/IOB-WIN/App.config
+++ b/IOB-WIN/App.config
@@ -37,7 +37,7 @@
     <add key="pauseSendMSec" value="1000" />
     <!--gestione invio dati in blocchi Json-->
     <add key="minJsonData" value="2" />
-    <add key="maxJsonData" value="10" />
+    <add key="maxJsonData" value="50" />
     <add key="sendDataByThread" value="false" />
     <!--Modalità DEMO: DemoOUT indica che NON invia davvero al server e DemoIN che simula e NON legge da PLC-->
     <add key="DemoIn" value="false" />
diff --git a/IOB-WIN/IobGeneric.cs b/IOB-WIN/IobGeneric.cs
index 8c2b73ea..3791a27a 100644
--- a/IOB-WIN/IobGeneric.cs
+++ b/IOB-WIN/IobGeneric.cs
@@ -782,6 +782,7 @@ namespace IOB_WIN
     public virtual void startAdapter(bool resetQueue)
     {
       lgInfo("Starting adapter...");
+      maxJsonData = utils.CRI("maxJsonData");
       parentForm.commPlcActive = false;
       adpRunning = true;
       dtAvvioAdp = DateTime.Now;
@@ -2161,13 +2162,13 @@ namespace IOB_WIN
                 // se ORA sono online riporto...
                 if (answ)
                 {
-                  lgInfo("SERVER ONLINE");
+                  lgInfo("SERVER ONLINE in checkServerAlive");
                   parentForm.commSrvActive = 1;
                   dtVetoPing = DateTime.Now.AddMilliseconds(baseUtils.nextPauseSendMSec);
                 }
                 else
                 {
-                  lgInfo("SERVER OFFLINE");
+                  lgInfo("SERVER OFFLINE in checkServerAlive");
                   parentForm.commSrvActive = 0;
                 }
                 // salvo nuovo status...
diff --git a/IOB-WIN/MainForm.cs b/IOB-WIN/MainForm.cs
index 8201fce9..e6a35e7d 100644
--- a/IOB-WIN/MainForm.cs
+++ b/IOB-WIN/MainForm.cs
@@ -488,7 +488,7 @@ namespace IOB_WIN
                 }
                 else
                 {
-                  lgInfo("SERVER OFFLINE");
+                  lgInfo("SERVER OFFLINE in MainForm:testServer");
                 }
                 // salvo nuovo status...
                 utils.MPIO_Online = answ;
diff --git a/Jenkinsfile b/Jenkinsfile
index 9d39edb1..330ebdbb 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -16,7 +16,7 @@ pipeline {
 
       /* calcolo numero versione... diverso x branch MASTER/DEVELOP */
       script {
-        withEnv(['NEXT_BUILD_NUMBER=490']) {
+        withEnv(['NEXT_BUILD_NUMBER=491']) {
           // env.versionNumber = VersionNumber(versionNumberString : '2.3.${BUILD_DATE_FORMATTED, "yyMM"}.${BUILDS_ALL_TIME}', projectStartDate : '2006-01-01', skipFailedBuilds: true)
           env.versionNumber = VersionNumber(versionNumberString : '2.3.${BUILD_DATE_FORMATTED, "yyMM"}.${BUILDS_ALL_TIME}', projectStartDate : '2006-01-01', skipFailedBuilds: true, overrideBuildsAllTime: '${NEXT_BUILD_NUMBER}')
           env.APP_NAME = 'MAPO-IOB-WIN'