Index: firmware/App/Controllers/DGInterface.c
===================================================================
diff -u -rffaf9f13166d7a9beb4252fad804c488f870aaaa -r1281328075355359a89df86bb3f31a2e2e580b8b
--- firmware/App/Controllers/DGInterface.c	(.../DGInterface.c)	(revision ffaf9f13166d7a9beb4252fad804c488f870aaaa)
+++ firmware/App/Controllers/DGInterface.c	(.../DGInterface.c)	(revision 1281328075355359a89df86bb3f31a2e2e580b8b)
@@ -99,11 +99,6 @@
 static DG_RESERVOIR_ID_T dgActiveReservoir = DG_RESERVOIR_2;                ///< Latest active reservoir reported by the DG.
 static DG_RESERVOIR_ID_T dgActiveReservoirSet = DG_RESERVOIR_2;             ///< Active reservoir commanded.
 
-static U32 dgReservoirFillVolumeTarget = 0;                                 ///< Latest fill-to volume reported by the DG.
-static U32 dgReservoirFillVolumeTargetSet = 0;                              ///< Fill-to volume commanded.
-static U32 dgReservoirDrainVolumeTarget = 0;                                ///< Latest drain-to volume reported by the DG.
-static U32 dgReservoirDrainVolumeTargetSet = 0;                             ///< Drain-to volume commanded.
-
 static DG_DISINFECT_UI_STATES_T disinfectsStatus;                           ///< DG disinfects status.
 static DG_MIXING_RATIOS_T dgMixingRatios;                                   ///< DG mixing ratios.
 static HEATERS_DATA_T dgHeatersData;                                        ///< DG heaters data.
@@ -135,8 +130,6 @@
     dgTrimmerTempCheckTimerCtr      = 0;
     dgActiveReservoirSet            = DG_RESERVOIR_2;
     dgActiveReservoir               = DG_RESERVOIR_2;
-    dgReservoirFillVolumeTargetSet  = 0;
-    dgReservoirDrainVolumeTargetSet = 0;
     dgDialysateTemp                 = 0.0F;
     dgCurrentOpMode                 = DG_MODE_INIT;
     dgSubMode                       = 0;
@@ -468,7 +461,7 @@
  * The getDialysateTemperature function gets the latest dialysate temperature.
  * @details Inputs: dgDialysateTemp
  * @details Outputs: none
- * @return the current dialysate temperature
+ * @return the latest dialysate temperature
  *************************************************************************/
 F32 getDialysateTemperature( void )
 {
@@ -477,6 +470,19 @@
 
 /*********************************************************************//**
  * @brief
+ * The getRedundantDialysateTemperature function gets the latest redundant
+ * dialysate temperature.
+ * @details Inputs: dgRedundantDialysateTemp
+ * @details Outputs: none
+ * @return the latest redundant dialysate temperature
+ *************************************************************************/
+F32 getRedundantDialysateTemperature( void )
+{
+    return dgRedundantDialysateTemp;
+}
+
+/*********************************************************************//**
+ * @brief
  * The getHeatDisinfectTemperatureSensorValue function gets the latest
  * heat disinfect temperature sensor value.
  * @details Inputs: dgDialysateTemp
@@ -597,8 +603,7 @@
  * The setDGReservoirsData function sets the latest reservoir data
  * reported by the DG.
  * @details Inputs: none
- * @details Outputs: dgActiveReservoir, dgReservoirFillVolumeTarget,
- * dgReservoirDrainVolumeTarget, dgReservoirsDataFreshFlag
+ * @details Outputs: dgActiveReservoir, dgReservoirsDataFreshFlag
  * @param resID ID of active reservoir
  * @param fillVol Reservoir fill to volume reported by DG
  * @param drainVol Reservoir drain to volume reported by DG
@@ -609,8 +614,6 @@
     if ( resID < NUM_OF_DG_RESERVOIRS )
     {
         dgActiveReservoir = resID;
-        dgReservoirFillVolumeTarget = fillVol;
-        dgReservoirDrainVolumeTarget = drainVol;
     }
     else
     {
@@ -908,7 +911,6 @@
 void cmdStartDGFill( U32 fillToVolMl, F32 targetFlowLPM )
 {
     dgCmdResp[ DG_CMD_START_FILL ].commandID = DG_CMD_NONE;
-    dgReservoirFillVolumeTargetSet = fillToVolMl;
 
     sendDGFillCommand( DG_CMD_START, fillToVolMl, targetFlowLPM );
 }
@@ -923,7 +925,6 @@
 void cmdStopDGFill( void )
 {
     dgCmdResp[ DG_CMD_STOP_FILL ].commandID = DG_CMD_NONE;
-    dgReservoirFillVolumeTargetSet = 0;
 
     sendDGFillCommand( DG_CMD_STOP, 0, 0 );
 }
@@ -947,7 +948,6 @@
     payload.tareLoadCells                     = tareLoadCell;
     payload.rinseConcentrateLines             = rinse;
     payload.cmd                               = start;
-    dgReservoirDrainVolumeTargetSet           = drainToVolMl;
 
     sendDGDrainCommand( &payload );
 }