Index: AlarmMgmt.c
===================================================================
diff -u -rca1d590217b1bfd14f0e0682f88e04de076ff199 -ref31ae5f4eb4f62b8c1b5cdc467507d8d0787640
--- AlarmMgmt.c	(.../AlarmMgmt.c)	(revision ca1d590217b1bfd14f0e0682f88e04de076ff199)
+++ AlarmMgmt.c	(.../AlarmMgmt.c)	(revision ef31ae5f4eb4f62b8c1b5cdc467507d8d0787640)
@@ -403,7 +403,30 @@
    return result;
 }
 
+/*********************************************************************//**
+ * @brief
+ * The getActiveAlarmCount function returns the count of currently active
+ * alarms by iterating the alarmIsActive array directly.
+ * @details \b Inputs: alarmIsActive[]
+ * @details \b Outputs: none
+ * @return Count of alarms currently active.
+ *************************************************************************/
+U32 getActiveAlarmCount( void )
+{
+    U32 count = 0U;
+    ALARM_ID_T alarm;
 
+    for ( alarm = (ALARM_ID_T)1; alarm < NUM_OF_ALARM_IDS; alarm++ )
+    {
+        if ( TRUE == alarmIsActive[ alarm ] )
+        {
+            count++;
+        }
+    }
+
+    return count;
+}
+
 /*************************************************************************
  *                       TEST SUPPORT FUNCTIONS
  *************************************************************************/
Index: AlarmMgmt.h
===================================================================
diff -u -rca1d590217b1bfd14f0e0682f88e04de076ff199 -ref31ae5f4eb4f62b8c1b5cdc467507d8d0787640
--- AlarmMgmt.h	(.../AlarmMgmt.h)	(revision ca1d590217b1bfd14f0e0682f88e04de076ff199)
+++ AlarmMgmt.h	(.../AlarmMgmt.h)	(revision ef31ae5f4eb4f62b8c1b5cdc467507d8d0787640)
@@ -120,6 +120,8 @@
 BOOL isAlarmConditionDetected( ALARM_ID_T alarm );
 BOOL isAlarmRecoverable( ALARM_ID_T alarm );
 
+U32  getActiveAlarmCount( void );
+
 BOOL testAlarmStateOverride( MESSAGE_T *message );
 
 /**@}*/
Index: MessagePayloads.h
===================================================================
diff -u -rf677679e0381ee76e2370d4cd09cf13f9172a5c8 -ref31ae5f4eb4f62b8c1b5cdc467507d8d0787640
--- MessagePayloads.h	(.../MessagePayloads.h)	(revision f677679e0381ee76e2370d4cd09cf13f9172a5c8)
+++ MessagePayloads.h	(.../MessagePayloads.h)	(revision ef31ae5f4eb4f62b8c1b5cdc467507d8d0787640)
@@ -46,6 +46,7 @@
     F32  bicarbConvFactor;                              ///< Conversion factor of bicarbonate.
     U32  sodium;                                        ///< Set sodium being used to make dialysate.
     U32  bicarbonate;                                   ///< Set bicarbonate being used to make dialysate.
+    F32  substitutionRate;                              ///< Set substitution (D92) pump rate (mL/min).
 } DIALYSATE_DELIVERY_REQ_PAYLOAD_T;
 
 /// Payload record structure for requesting pre generate dialysate.