Index: DGDefs.h
===================================================================
diff -u -r2087a70ec38459f630a54db5ab385147f395c7e3 -r22e8d7a61a645af4f2c6b7c053ab369b01d7e0aa
--- DGDefs.h	(.../DGDefs.h)	(revision 2087a70ec38459f630a54db5ab385147f395c7e3)
+++ DGDefs.h	(.../DGDefs.h)	(revision 22e8d7a61a645af4f2c6b7c053ab369b01d7e0aa)
@@ -1,14 +1,14 @@
 /**************************************************************************
 *
-* Copyright (c) 2020-2023 Diality Inc. - All Rights Reserved.
+* Copyright (c) 2020-2024 Diality Inc. - All Rights Reserved.
 *
 * THIS CODE MAY NOT BE COPIED OR REPRODUCED IN ANY FORM, IN PART OR IN
 * WHOLE, WITHOUT THE EXPLICIT PERMISSION OF THE COPYRIGHT OWNER.
 *
 * @file    DGDefs.h
 *
-* @author  (last)      Dara Navaei
-* @date    (last)      26-Jun-2023
+* @author  (last)      Michael Garthwaite
+* @date    (last)      09-Oct-2023
 *
 * @author  (original)  Sean Nash
 * @date    (original)  29-May-2020
@@ -174,8 +174,7 @@
 /// Enumeration of fill mode states.
 enum DG_Fill_Mode_States
 {
-    DG_FILL_MODE_STATE_START = 0,                       ///< Start fill mode state
-    DG_FILL_MODE_STATE_TEST_INLET_WATER,                ///< Test inlet water quality state
+    DG_FILL_MODE_STATE_TEST_INLET_WATER = 0,            ///< Test inlet water quality state
     DG_FILL_MODE_STATE_PRIME_CONCENTRATE_LINES,         ///< Prime the acid and bicarb concentrate lines
     DG_FILL_MODE_STATE_FLUSH_BUBBLES,                   ///< Flush the bubbles in the lines state
     DG_FILL_MODE_STATE_TEST_BICARB_CONDUCTIVITY,        ///< Test the conductivity range of the bicarb concentrate state
@@ -300,6 +299,7 @@
     DG_HEAT_DISINFECT_STATE_FLUSH_DRAIN_R1,                     ///< Heat disinfect, flush drain R1 state
     DG_HEAT_DISINFECT_STATE_FILL_WITH_WATER,                    ///< Heat disinfect, fill with water state
     DG_HEAT_DISINFECT_STATE_DISINFECT_R1_TO_R2,                 ///< Heat disinfect, disinfect R1 to R2 state
+    DG_HEAT_DISINFECT_STATE_PREPARE_FOR_HOT_WATER_TRANSITION,   ///< Heat disinfect, prepare for hot water transition
     DG_HEAT_DISINFECT_STATE_FILL_R2_WITH_HOT_WATER,             ///< Heat disinfect, fill R2 with hot water state
     DG_HEAT_DISINFECT_STATE_DISINFECT_R2_TO_R1,                 ///< Heat disinfect, disinfect R2 to R1 state
     DG_HEAT_DISINFECT_STATE_COOL_DOWN_HEATERS,                  ///< Heat disinfect, cool down heaters state
@@ -536,7 +536,7 @@
 /**@}*/
 
 /**
- *  @addtogroup DGCommand
+ *  @addtogroup DGInterface
  *  @{
  */
 
@@ -565,6 +565,7 @@
     DG_CMD_START_RO_PERMEATE_SAMPLE = 19,      ///< Command to request DG to start RO permeate sample mode
     DG_CMD_STOP_RO_PERMEATE_SAMPLE = 20,       ///< Command to request DG to stop RO permeate sample mode
     DG_CMD_STOP_ACTIVE_COOL = 21,              ///< Command to request DG to stop active cool mode
+    DG_CMD_PARK_CONCENTRATE_PUMPS = 22,        ///< Command to request DG to park concentrate pumps
     NUM_OF_DG_COMMANDS                         ///< Number of DG commands
 };
 typedef enum DG_Command DG_COMMAND_T;   ///< Type for DG commands enumeration
@@ -666,6 +667,7 @@
     DG_EVENT_AVG_DIALYSATE_FILL_COND_VALUES,                            ///< DG average dialysate fill conductivity values
     DG_EVENT_RESERVOIR_FILL_VALUES,                                     ///< DG reservoir fill values
     DG_EVENT_OPERATION_STATUS,                                          ///< DG operation status event
+    DG_EVENT_TEMPERATURE_DRIFT,                                         ///< DG temperature drift event
     DG_EVENT_INACTIVE_RESERVOIR_TEMP_REMOVE,                            // TODO remove
     NUM_OF_DG_EVENT_IDS                                                 ///< Total number of DG events
 };