Index: MsgDefs.h
===================================================================
diff -u -r1a54a8e6eb11c320ec6c279c22b42dc3f68869ee -r805452c7318a13c6cb6bbcd6b50f47781ecf4f7a
--- MsgDefs.h	(.../MsgDefs.h)	(revision 1a54a8e6eb11c320ec6c279c22b42dc3f68869ee)
+++ MsgDefs.h	(.../MsgDefs.h)	(revision 805452c7318a13c6cb6bbcd6b50f47781ecf4f7a)
@@ -109,6 +109,7 @@
     MSG_ID_DIAL_OUT_PUMP_MEAS_SPEED_OVERRIDE = 0x8023,                  ///< Dialysate outlet pump measured motor speed override request.
     MSG_ID_DIAL_OUT_PUMP_MEAS_ROTOR_SPEED_OVERRIDE = 0x8024,            ///< Dialysate outlet pump measured rotor speed override request.
     MSG_ID_DIAL_OUT_LOAD_CELL_WEIGHT_OVERRIDE = 0x8025,                 ///< Load cell measured weight override request.
+    MSG_ID_HD_SAFETY_SHUTDOWN_OVERRIDE = 0x8026,                        ///< HD safety shutdown override request.
 
     MSG_ID_FIRST_DG_TESTER_MESSAGE = 0xA000,                            ///< First DG test message ID.
     MSG_ID_DG_TESTER_LOGIN_REQUEST = MSG_ID_FIRST_DG_TESTER_MESSAGE,    ///< DG tester log-in.
@@ -127,9 +128,10 @@
     MSG_ID_VALVE_STATE_OVERRIDE = 0xA00E,                               ///< Valve state override request.
     MSG_ID_VALVES_STATES_PUBLISH_INTERVAL_OVERRIDE = 0xA00F,            ///< Valve data broadcast interval override request.
     MSG_ID_TEMPERATURE_SENSORS_VALUE_OVERRIDE = 0xA010,                 ///< Temperature sensor override request.
-    MSG_ID_START_STOP_PRIMARY_HEATER = 0xA020,                          ///< Start/stop primary heaters
-    MSG_ID_TEMPERATURE_SENSORS_PUBLISH_INTERVAL_OVERRIDE = 0xA030,      ///< Temperature sensors data publish override
-    MSG_ID_HEATERS_PUBLISH_INTERVAL_ORVERRIDE = 0xA040,                 ///< Heaters data publish override
+    MSG_ID_START_STOP_PRIMARY_HEATER = 0xA011,                          ///< Start/stop primary heaters
+    MSG_ID_TEMPERATURE_SENSORS_PUBLISH_INTERVAL_OVERRIDE = 0xA012,      ///< Temperature sensors data publish override
+    MSG_ID_HEATERS_PUBLISH_INTERVAL_ORVERRIDE = 0xA013,                 ///< Heaters data publish override
+    MSG_ID_DG_SAFETY_SHUTDOWN_OVERRIDE = 0xA014,                        ///< DG safety shutdown override request.
     END_OF_MSG_IDS                                                      ///< # of system message IDs.
 };
 /// Type for message IDs enumeration.