Index: sources/canbus/messageglobals.h
===================================================================
diff -u -r426208cdb707400759bdc663b871ece9d1208aed -r4836b003eb45d7f8cb98ea4c7999d068f0beb0d2
--- sources/canbus/messageglobals.h	(.../messageglobals.h)	(revision 426208cdb707400759bdc663b871ece9d1208aed)
+++ sources/canbus/messageglobals.h	(.../messageglobals.h)	(revision 4836b003eb45d7f8cb98ea4c7999d068f0beb0d2)
@@ -30,14 +30,19 @@
 typedef Types::S16      Sequence_Bytes;
 #define SEQUENCE_MAX    INT16_MAX
 
+// stl
+#include <stdint.h>
+#define FrameCount_MAX UINT64_MAX
+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::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
@@ -81,12 +86,15 @@
  * \details The Valid Can Bus MessageID of each frame
  */
 enum Can_Id : quint16 {
+    eChlid_LOWEST   = 0x7FF,
+
     eChlid_NONE     = 0x000,
     // Broadcasts
     //// Alarm
     eChlid_HD_Alarm = 0x001, ///< HD alarm broadcast
     eChlid_DG_Alarm = 0x002, ///< DG alarm broadcast
     eChlid_UI_Alarm = 0x004, ///< UI alarm broadcast [Out]
+
     //// Sync
     eChlid_HD_Sync  = 0x040, ///< HD sync  broadcast
     eChlid_DG_Sync  = 0x080, ///< DG sync  broadcast