Index: sources/canbus/messageglobals.h
===================================================================
diff -u -r56eea041fb0995182b3d3ea0c0ac19e4933a2d3d -rbb8f39a014644c70b832dd2a784f62fa9f6b6106
--- sources/canbus/messageglobals.h	(.../messageglobals.h)	(revision 56eea041fb0995182b3d3ea0c0ac19e4933a2d3d)
+++ sources/canbus/messageglobals.h	(.../messageglobals.h)	(revision bb8f39a014644c70b832dd2a784f62fa9f6b6106)
@@ -31,14 +31,20 @@
 #define SEQUENCE_MAX    INT16_MAX
 
 /*!
+ * \brief   FrameCount
+ * \details The maximum unsigned integer value to be used as the frame count
+ */
+typedef quint64 FrameCount;
+
+/*!
  * \brief   Payload Length
  * \details List of each ActionID required data (in byte) length in the message.
  *          So the data collector has to collect this amount of bytes as payload of a message.
  */
 const QHash<Gui::GuiActionType ,quint8> payloadLen {
     {Gui::GuiActionType::PowerOff           ,   1     },
     {Gui::GuiActionType::PowerOffBroadcast  ,   0     },
-    {Gui::GuiActionType::KeepAlive          ,   0     },
+    {Gui::GuiActionType::KeepAlive          , 255     }, // 0 => 255 to be able to run a multi-frame test.
     {Gui::GuiActionType::BloodFlow          ,   7 * 4 }, // 7 parameters each 4bytes
     {Gui::GuiActionType::DialysateInletFlow ,   7 * 4 }, // 7 parameters each 4bytes
     {Gui::GuiActionType::DialysateOutletFlow,   7 * 4 }, // 7 parameters each 4bytes
@@ -82,7 +88,9 @@
  * \details The Valid Can Bus MessageID of each frame
  */
 enum Can_Id : quint16 {
-    eChlid_NONE     = 0x000,
+    eChlid_LOWEST   = 0x7FF,
+    eChlid_NONE     = 0x7FF,
+
     // Broadcasts
     //// Alarm
     eChlid_HD_Alarm = 0x001, ///< HD alarm broadcast