--- a/ProjectController.py	Tue Apr 04 11:34:31 2017 +0300
+++ b/ProjectController.py	Wed Apr 05 14:17:02 2017 +0300
@@ -1777,6 +1777,7 @@
                         self.AppFrame.CloseObsoleteDebugTabs()
                         self.AppFrame.RefreshPouInstanceVariablesPanel()
                     self.logger.write(_("Transfer completed successfully.\n"))
+                    self.AppFrame.LogViewer.ResetLogCounters();
                 else:
                     self.logger.write_error(_("Transfer failed\n"))
                 self.HidePLCProgress()                    

--- a/controls/LogViewer.py	Tue Apr 04 11:34:31 2017 +0300
+++ b/controls/LogViewer.py	Wed Apr 05 14:17:02 2017 +0300
@@ -379,7 +379,7 @@
         self.ScrollTimer.Stop()
 
     def ResetLogMessages(self):
-        self.previous_log_count = [None]*LogLevelsCount
+        self.ResetLogCounters()
         self.OldestMessages = []
         self.LogMessages = []
         self.LogMessagesTimestamp = numpy.array([])
@@ -401,6 +401,9 @@
                 return LogMessage(tv_sec, tv_nsec, level, self.LevelIcons[level], msg)
         return None
 
+    def ResetLogCounters(self):
+        self.previous_log_count = [None]*LogLevelsCount
+    
     def SetLogCounters(self, log_count):
         new_messages = []
         for level, count, prev in zip(xrange(LogLevelsCount), log_count, self.previous_log_count):