diff --git a/IOB-WIN/IobSiemens.cs b/IOB-WIN/IobSiemens.cs
index 273c290f..d3084841 100644
--- a/IOB-WIN/IobSiemens.cs
+++ b/IOB-WIN/IobSiemens.cs
@@ -366,6 +366,8 @@ namespace IOB_WIN
     {
       if (!connectionOk)
       {
+        // reimporto parametri PLC se necessario...
+        setParamPlc();
         // controllo che il ping sia stato tentato almeno pingTestSec fa...
         if (DateTime.Now.Subtract(lastPING).TotalSeconds > utils.CRI("pingTestSec"))
         {
@@ -409,9 +411,9 @@ namespace IOB_WIN
             }
             catch (Exception exc)
             {
-              lgFatal(string.Format("Errore nella connessione all'adapter SIEMENS: {0}{1}{2}", szStatusConnection, Environment.NewLine, exc));
+              lgFatal(string.Format("Errore in TryConnect adapter SIEMENS: {0}{1}{2}", szStatusConnection, Environment.NewLine, exc));
               connectionOk = false;
-              lgInfo(string.Format("Eccezione in TryConnect, Adapter SIEMENS NON running, pausa di {0} msec prima di ulteriori tentativi di riconnessione", utils.CRI("waitRecMSec")));
+              needRefresh = true;
             }
           }
           else
diff --git a/Jenkinsfile b/Jenkinsfile
index bd5ef7ca..f81c8f3b 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -16,7 +16,7 @@ pipeline {
 
       /* calcolo numero versione... diverso x branch MASTER/DEVELOP */
       script {
-        withEnv(['NEXT_BUILD_NUMBER=323']) {
+        withEnv(['NEXT_BUILD_NUMBER=324']) {
           // env.versionNumber = VersionNumber(versionNumberString : '1.18.${BUILD_DATE_FORMATTED, "yyMM"}.${BUILDS_ALL_TIME}', projectStartDate : '2006-01-01', skipFailedBuilds: true)
           env.versionNumber = VersionNumber(versionNumberString : '1.18.${BUILD_DATE_FORMATTED, "yyMM"}.${BUILDS_ALL_TIME}', projectStartDate : '2006-01-01', skipFailedBuilds: true, overrideBuildsAllTime: '${NEXT_BUILD_NUMBER}')
           env.APP_NAME = 'MAPO-IOB-WIN'