Index: MsgDefs.h
===================================================================
diff -u -r4d9b18196318f64f83b9849bc288c6b80b3d6ba1 -rce693023746e072e8e56adb22e33dcd9024b5159
--- MsgDefs.h	(.../MsgDefs.h)	(revision 4d9b18196318f64f83b9849bc288c6b80b3d6ba1)
+++ MsgDefs.h	(.../MsgDefs.h)	(revision ce693023746e072e8e56adb22e33dcd9024b5159)
@@ -217,15 +217,15 @@
     MSG_ID_HD_DG_SERVICE_RECORD_REQUEST = 0xB9,                         ///< HD request DG service record
     MSG_ID_HD_UI_CONFIRMATION_REQUEST = 0xBA,                           ///< HD request UI confirmation
     MSG_ID_UI_CONFIRMATION_RESULT_RESPONSE = 0xBB,                      ///< UI confirmation result response
-    MSG_ID_MSG_AVAILABLE_1 = 0xBC,                                      ///< Message available for use
+    MSG_ID_UI_SET_DG_RO_MODE = 0xBC,                                    ///< UI set DG RO mode
     MSG_ID_DG_CPLD_STATUS_DATA = 0xBD,                                  ///< DG CPLD Status
     MSG_ID_HD_BATTERY_MANAGEMENT_DATA = 0xBE,                           ///< HD battery management logging data
     MSG_ID_HD_BATTERY_STATUS_DATA = 0xBF,                               ///< HD battery status logging data
     MSG_ID_DG_CHEM_DISINFECT_FLUSH_DATA = 0xC0,                         ///< DG chemical disinfect flush logging data
     MSG_ID_DG_CHEM_DISINFECT_FLUSH_TIME_DATA = 0xC1,                    ///< DG broadcast of chemical disinfect flush mode time data
     MSG_ID_DG_START_STOP_CHEM_DISINFECT_FLUSH = 0xC2,                   ///< DG start/stop chemical disinfect flush
-    MSG_ID_MSG_AVAILABLE_5 = 0xC3,                                      ///< Message available for use
-    MSG_ID_MSG_AVAILABLE_6 = 0xC4,                                      ///< Message available for use
+    MSG_ID_DG_RO_ONLY_MODE_STATUS_REQUEST = 0xC3,                       ///< DG RO only mode status request
+    MSG_ID_DG_RO_ONLY_MODE_STATUS_RESPONSE = 0xC4,                      ///< DG RO only mode status response
     MSG_ID_DG_HEAT_DISINFECT_ACTIVE_COOL_DATA = 0xC5,                   ///< DG heat disinfect active cool data broadcast
     MSG_ID_DG_START_STOP_HEAT_DISINFECT_ACTIVE_COOL = 0xC6,             ///< DG heat disinfect active cool start/stop command
     MSG_ID_HD_AIR_PUMP_DATA = 0xC7,                                     ///< HD air pump data publish
@@ -551,6 +551,9 @@
     REQUEST_REJECT_REASON_DG_INCOMPATIBLE = 51,                         ///< DG firmware version is not compatible with HD firmware
     REQUEST_REJECT_REASON_HEPARIN_PRESTOP_WITH_NO_DISPENSE = 52,        ///< Heparin settings are zero but pre-stop setting is non-zero
     REQUEST_REJECT_REASON_DIALYZER_REPRIME_IN_PROGRESS = 53,            ///< Saline bolus is not allowed during dialyzer reprime
+    REQUEST_REJECT_REASON_DG_RO_ONLY_MODE_DG_BUSY = 54,                 ///< DG RO only mode DG is busy
+    REQUEST_REJECT_REASON_DG_RO_ONLY_MODE_INVALID_PARAMETER = 55,       ///< DG RO only mode invalid parameter
+    REQUEST_REJECT_REASON_DG_RO_ONLY_MODE_INVALID_PAYLOAD_LENGTH = 56,  ///< DG RO only mode invalid payload length
     NUM_OF_REQUEST_REJECT_REASONS                                       ///< Number of settings change reject codes
 };
 typedef enum Request_Reject_Reasons REQUEST_REJECT_REASON_CODE_T;       ///< Type for settings change rejection reason codes enumeration