Index: AlarmDefs.h
===================================================================
diff -u -ra939fd0358c96b2bbd880705518b5f40be104888 -rc14a9f333a93e3add3003fa3c566edc321e27d04
--- AlarmDefs.h	(.../AlarmDefs.h)	(revision a939fd0358c96b2bbd880705518b5f40be104888)
+++ AlarmDefs.h	(.../AlarmDefs.h)	(revision c14a9f333a93e3add3003fa3c566edc321e27d04)
@@ -156,6 +156,7 @@
     ALARM_ID_PRIME_COMPLETED_MEDIUM_PRIORITY = 118,                 ///< HD prime completed medium priority alarm
     ALARM_ID_PRIME_COMPLETED_HIGH_PRIORITY = 119,                   ///< HD prime completed high priority alarm
     ALARM_ID_PRIME_OUT_OF_TIME = 120,                               ///< HD prime out of time alarm
+    ALARM_ID_DG_COMMAND_INVALID_PARAMETER_FAULT = 121,              ///< HD requests DG command with invalid parameter fault
     NUM_OF_ALARM_IDS                                                ///< Total number of alarms
 };
 typedef enum Alarm_List ALARM_ID_T;                                 ///< Type for alarm list enumeration
@@ -367,6 +368,7 @@
     { ALARM_PRIORITY_MEDIUM,   4,   ALM_ESC_30_MIN, ALARM_ID_PRIME_COMPLETED_HIGH_PRIORITY,       FALSE, FALSE, FALSE, FALSE, TRUE , TRUE , FALSE, FALSE, FALSE }, // ALARM_ID_PRIME_COMPLETED_MEDIUM_PRIORITY
     { ALARM_PRIORITY_HIGH,     4,   0,              ALARM_ID_NO_ALARM,                            FALSE, FALSE, TRUE,  FALSE, TRUE , TRUE , FALSE, FALSE, FALSE }, // ALARM_ID_PRIME_COMPLETED_HIGH_PRIORITY
     { ALARM_PRIORITY_LOW,      4,   0,              ALARM_ID_NO_ALARM,                            FALSE, TRUE , TRUE , FALSE, TRUE , TRUE , TRUE , FALSE, FALSE }, // ALARM_ID_PRIME_OUT_OF_TIME
+    { ALARM_PRIORITY_LOW,      4,   0,              ALARM_ID_NO_ALARM,                            TRUE , TRUE , TRUE , TRUE , TRUE , TRUE , TRUE , TRUE , FALSE }, // ALARM_ID_DG_COMMAND_INVALID_PARAMETER_FAULT
     // Priority              Rank  Escalate In      Escalate To                                   Fault  Stops  ClrIm  NoClr  NoRes  NoRin  NoEnd  NoNew  UsrAck
 };
 
Index: DGDefs.h
===================================================================
diff -u -r1ea146115c041879f1ef9b07013fa5c550eff68c -rc14a9f333a93e3add3003fa3c566edc321e27d04
--- DGDefs.h	(.../DGDefs.h)	(revision 1ea146115c041879f1ef9b07013fa5c550eff68c)
+++ DGDefs.h	(.../DGDefs.h)	(revision c14a9f333a93e3add3003fa3c566edc321e27d04)
@@ -263,13 +263,14 @@
 /// Enumeration of available DG commands.
 enum DG_Command
 {
-    DG_CMD_SWITCH_RESERVOIR = 0,        ///< Command to request DG switch reservoirs
-    DG_CMD_START_DRAIN = 1,             ///< Command to request DG to start drain
-    DG_CMD_STOP_DRAIN = 2,              ///< Command to request DG to stop drain
-    DG_CMD_START_FILL = 3,              ///< Command to request DG to start fill
-    DG_CMD_STOP_FILL = 4,               ///< Command to request DG to stop fill
-    DG_CMD_START_TRIMMER_HEATER = 5,    ///< Command to request DG to start trimmer heater
-    DG_CMD_STOP_TRIMMER_HEATER = 6,     ///< Command to request DG to stop trimmer heater
+    DG_CMD_NONE = 0,                    ///< Not a command
+    DG_CMD_SWITCH_RESERVOIR = 1,        ///< Command to request DG switch reservoirs
+    DG_CMD_START_DRAIN = 2,             ///< Command to request DG to start drain
+    DG_CMD_STOP_DRAIN = 3,              ///< Command to request DG to stop drain
+    DG_CMD_START_FILL = 4,              ///< Command to request DG to start fill
+    DG_CMD_STOP_FILL = 5,               ///< Command to request DG to stop fill
+    DG_CMD_START_TRIMMER_HEATER = 6,    ///< Command to request DG to start trimmer heater
+    DG_CMD_STOP_TRIMMER_HEATER = 7,     ///< Command to request DG to stop trimmer heater
     NUM_OF_DG_COMMANDS                  ///< Number of DG commands
 };
 typedef enum DG_Command DG_COMMAND_T;   ///< Type for DG commands enumeration
Index: HDDefs.h
===================================================================
diff -u -r1ea146115c041879f1ef9b07013fa5c550eff68c -rc14a9f333a93e3add3003fa3c566edc321e27d04
--- HDDefs.h	(.../HDDefs.h)	(revision 1ea146115c041879f1ef9b07013fa5c550eff68c)
+++ HDDefs.h	(.../HDDefs.h)	(revision c14a9f333a93e3add3003fa3c566edc321e27d04)
@@ -157,6 +157,7 @@
     HD_PRIME_RESERVOIR_TWO_FILL_COMPLETE_STATE,                             ///< Wait for reservoir 2 fill complete
     HD_PRIME_DIALYSATE_BYPASS_STATE,                                        ///< Dialysate bypass fluid path state
     HD_PRIME_WET_SELF_TESTS_STATE,                                          ///< Perform wet self-tests after priming complete
+    HD_PRIME_PAUSE,                                                         ///< Prime pause state, waits to be resumed
     NUM_OF_HD_PRIME_STATES                                                  ///< Number of prime sub-mode states
 };
 typedef enum HD_Pre_Treatment_Prime_States HD_PRE_TREATMENT_PRIME_STATE_T;  ///< Type for HD pre-treatment prime sub-mode states enumeration