Index: HDDefs.h
===================================================================
diff -u -r3f2cacd7aa2c9d5ec5b7c1217de38dae7270a967 -rc8558c28bdb01b1c09e66c0b38dba9007fc42746
--- HDDefs.h	(.../HDDefs.h)	(revision 3f2cacd7aa2c9d5ec5b7c1217de38dae7270a967)
+++ HDDefs.h	(.../HDDefs.h)	(revision c8558c28bdb01b1c09e66c0b38dba9007fc42746)
@@ -554,7 +554,9 @@
 /// Enumeration of treatment re-circulation sub-mode states.
 enum Treatment_Recirc_States
 {
-    TREATMENT_RECIRC_RECIRC_STATE = 0,                                  ///< Re-circulate state of the treatment re-circulate sub-mode state machine
+    TREATMENT_RECIRC_RECIRC_STATE = 0,                                  ///< Re-circulate Dialysate and Blood state of the treatment re-circulate sub-mode state machine
+    TREATMENT_RECIRC_DIALYSATE_ONLY_STATE,                              ///< Re-circulate Dialysate only state of the treatment re-circulate sub-mode state machine
+    TREATMENT_RECIRC_BLOOD_ONLY_STATE,                                  ///< Re-circulate Blood only state of the treatment re-circulate sub-mode state machine
     TREATMENT_RECIRC_STOPPED_STATE,                                     ///< Stopped state of the treatment re-circulate sub-mode state machine
     NUM_OF_TREATMENT_RECIRC_STATES                                      ///< Number of treatment re-circulate sub-mode states
 };
@@ -721,6 +723,17 @@
 };
 typedef enum HD_Event_List HD_EVENT_ID_T;                               ///< Type for HD event list enumeration
 
+// **** Common Const ****
+
+#if !defined TASK_GENERAL_INTERVAL
+#include "TaskGeneral.h"
+#endif
+/// Maximum time in this mode before blood sitting alarm given (in general task intervals).
+static const U32 MAX_TIME_BLOOD_SITTING = ( ( 5 * SEC_PER_MIN * MS_PER_SECOND ) / TASK_GENERAL_INTERVAL );
+/// Maximum time in this mode before blood sitting warning given (in general task intervals).
+static const U32 WARN_TIME_BLOOD_SITTING = ( ( 4 * SEC_PER_MIN * MS_PER_SECOND ) / TASK_GENERAL_INTERVAL );
+
+
 /**@}*/
 
 #endif