Index: firmware/App/Services/SystemComm.c
===================================================================
diff -u -r0968c8cabe4a8185a5fc28870c6475c3d581561f -r0565c9c592a8b78978157e805269f5900f9636ce
--- firmware/App/Services/SystemComm.c	(.../SystemComm.c)	(revision 0968c8cabe4a8185a5fc28870c6475c3d581561f)
+++ firmware/App/Services/SystemComm.c	(.../SystemComm.c)	(revision 0565c9c592a8b78978157e805269f5900f9636ce)
@@ -824,52 +824,52 @@
             handleSetDialysateTemperatureCmd( message );
             break;
 
-        case MSG_ID_REQUEST_FW_VERSIONS:
+        case MSG_ID_FW_VERSIONS_REQUEST:
             handleFWVersionCmd( message );
             handleDGSerialNumberRequest();
             break;
 
-        case MSG_ID_DG_SWITCH_RESERVOIR_CMD:
+        case MSG_ID_DG_SWITCH_RESERVOIR_CMD_REQUEST:
             handleSwitchReservoirCmd( message );
             break;
 
-        case MSG_ID_DG_CHANGE_VALVE_SETTING_CMD:
+        case MSG_ID_DG_CHANGE_VALVE_SETTING_CMD_REQUEST:
             handleChangeValveSettingCmd( message );
             break;
 
-        case MSG_ID_DG_FILL_CMD:
+        case MSG_ID_DG_FILL_CMD_REQUEST:
             handleFillCmd( message );
             break;
 
-        case MSG_ID_DG_DRAIN_CMD:
+        case MSG_ID_DG_DRAIN_CMD_REQUEST:
             handleDrainCmd( message );
             break;
 
         case MSG_ID_HD_OP_MODE_DATA:
             handleSetHDOperationMode( message );
             break;
 
-        case MSG_ID_STARTING_STOPPING_TREATMENT_CMD:
+        case MSG_ID_STARTING_STOPPING_TREATMENT_CMD_REQUEST:
             handleStartStopTreatmentMsg( message );
             break;
 
-        case MSG_ID_DG_SAMPLE_WATER_CMD:
+        case MSG_ID_DG_SAMPLE_WATER_CMD_REQUEST:
             handleSampleWaterCmd( message );
             break;
 
-        case MSG_ID_HD_START_STOP_TRIMMER_HEATER_CMD:
+        case MSG_ID_HD_START_STOP_TRIMMER_HEATER_CMD_REQUEST:
             handleHDStartStopTrimmerHeaterCmd( message );
             break;
 
         case MSG_ID_DG_START_STOP_TRIMMER_HEATER_CMD:
             handleDGStartStopTrimmerHeater( message );
             break;
 
-        case MSG_ID_DG_START_STOP_FLUSH_CMD:
+        case MSG_ID_DG_START_STOP_FLUSH_CMD_REQUEST:
             handleStartStopDGFlush( message );
             break;
 
-        case MSG_ID_DG_START_STOP_HEAT_DISINFECT_CMD:
+        case MSG_ID_DG_START_STOP_HEAT_DISINFECT_CMD_REQUEST:
             handleStartStopDGHeatDisinfect( message );
             break;
 
@@ -889,35 +889,39 @@
             handleDGPOSTResultRequest( message );
             break;
 
-        case MSG_ID_HD_REQUEST_DG_SERVICE_RECORD:
+        case MSG_ID_HD_DG_SERVICE_RECORD_REQUEST:
             handleDGServiceScheduleRequest( message );
             break;
 
-        case MSG_ID_HD_REQUEST_DG_CONCENTRATE_MIXING_RATIOS:
+        case MSG_ID_HD_DG_CONCENTRATE_MIXING_RATIOS_REQUEST:
             handleDGSendConcentrateMixingRatios( message );
             break;
 
         case MSG_ID_HD_REQUEST_DG_USAGE_INFO:
             handleHDRequestDGUsageInfo( message );
             break;
 
-        case MSG_ID_HD_REQUEST_DG_SERVICE_MODE:
+        case MSG_ID_HD_DG_SERVICE_MODE_REQUEST:
             handleServiceModeRequest( message );
             break;
 
-        case MSG_ID_DG_SET_SERVICE_TIME:
+        case MSG_ID_HD_DG_USAGE_INFO_REQUEST:
+            handleHDRequestDGUsageInfo( message );
+            break;
+
+        case MSG_ID_DG_SET_SERVICE_TIME_REQUEST:
             handleSetDGServiceTime( message );
             break;
 
         case MSG_ID_DG_START_STOP_HEAT_DISINFECT_ACTIVE_COOL:
             handleStartStopDGHeatDisinfectActiveCool( message );
             break;
 
-        case MSG_ID_REQUEST_CPLD_STATUS:
+        case MSG_ID_CPLD_STATUS_REQUEST:
             handleCpldStatusRequest( message );
             break;
 
-        case MSG_ID_HD_REQUEST_DG_ALARMS:
+        case MSG_ID_HD_DG_ALARMS_REQUEST:
             handleResendAllAlarmsCommand( message );
             break;