Index: firmware/App/Controllers/DGInterface.c
===================================================================
diff -u -r8a18b5d1fb4598c6b7facb3e7e233252941eaded -r7c8ec681f8c5dc44674893b5c3924a6203f2c8d0
--- firmware/App/Controllers/DGInterface.c	(.../DGInterface.c)	(revision 8a18b5d1fb4598c6b7facb3e7e233252941eaded)
+++ firmware/App/Controllers/DGInterface.c	(.../DGInterface.c)	(revision 7c8ec681f8c5dc44674893b5c3924a6203f2c8d0)
@@ -62,6 +62,8 @@
 
 // DG sensor data
 static F32 dgPressures[ NUM_OF_DG_PRESSURE_SENSORS ];           ///< Latest pressures reported by the DG.
+static F32 dgDialysateTemp = 0.0;                               ///< Dialysate temperature reported by the DG.
+static F32 dgRedundantDialysateTemp = 0.0;                      ///< Redundant dialysate temperature reported by the DG.
 static F32 dgPrimaryTempSet = 0.0;                              ///< Primary heater target temperature commanded.
 static F32 dgPrimaryTemp = 0.0;                                 ///< Latest RO water temperature reported by the DG.
 static F32 dgTrimmerTempSet = 0.0;                              ///< Trimmer heater target temperature commanded.
@@ -389,6 +391,23 @@
 
 /*********************************************************************//**
  * @brief
+ * The setDialysateTemperatureReadings function sets the latest dialysate \n
+ * temperatures reported by the DG.
+ * @details
+ * Inputs : none
+ * Outputs : dgDialysateTemp, dgRedundantDialysateTemp
+ * @param temp1 : dialysate temperature reported by DG.
+ * @param temp2 : redundant dialysate temperature reported by DG.
+ * @return none
+ *************************************************************************/
+void setDialysateTemperatureReadings( F32 temp1, F32 temp2 )
+{
+    dgDialysateTemp = temp1;
+    dgRedundantDialysateTemp = temp2;
+}
+
+/*********************************************************************//**
+ * @brief
  * The setDGDialysateTemperatures function sets the latest temperature data \n
  * reported by the DG.
  * @details
Index: firmware/App/Controllers/DGInterface.h
===================================================================
diff -u -r8a18b5d1fb4598c6b7facb3e7e233252941eaded -r7c8ec681f8c5dc44674893b5c3924a6203f2c8d0
--- firmware/App/Controllers/DGInterface.h	(.../DGInterface.h)	(revision 8a18b5d1fb4598c6b7facb3e7e233252941eaded)
+++ firmware/App/Controllers/DGInterface.h	(.../DGInterface.h)	(revision 7c8ec681f8c5dc44674893b5c3924a6203f2c8d0)
@@ -67,6 +67,7 @@
 U32 getDGDrainPumpRPMSetPt( void );
 
 void setDGOpMode( U32 opMode, U32 subMode );
+void setDialysateTemperatureReadings( F32 temp1, F32 temp2 );
 void setDGDialysateTemperatures( F32 primaryHtrTemp, F32 trimmerHtrTemp );
 void setDGReservoirsData( DG_RESERVOIR_ID_T resID, U32 fillVol, U32 drainVol );
 void setDGPressures( F32 roIn, F32 roOut, F32 drainIn, F32 drainOut );
Index: firmware/App/Services/SystemComm.c
===================================================================
diff -u -ra60ec05d359c0d3f014015e9080b6dbcef0fea28 -r7c8ec681f8c5dc44674893b5c3924a6203f2c8d0
--- firmware/App/Services/SystemComm.c	(.../SystemComm.c)	(revision a60ec05d359c0d3f014015e9080b6dbcef0fea28)
+++ firmware/App/Services/SystemComm.c	(.../SystemComm.c)	(revision 7c8ec681f8c5dc44674893b5c3924a6203f2c8d0)
@@ -1106,6 +1106,10 @@
             handleFWVersionRequest( message );
             break;
 
+        case MSG_ID_DG_TEMPERATURE_DATA:
+            handleDGTemperatureData( message );
+            break;
+
         case MSG_ID_RO_PUMP_DATA:
             handleROPumpData( message );
             break;
Index: firmware/App/Services/SystemCommMessages.c
===================================================================
diff -u -r8a18b5d1fb4598c6b7facb3e7e233252941eaded -r7c8ec681f8c5dc44674893b5c3924a6203f2c8d0
--- firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision 8a18b5d1fb4598c6b7facb3e7e233252941eaded)
+++ firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision 7c8ec681f8c5dc44674893b5c3924a6203f2c8d0)
@@ -119,7 +119,7 @@
 
 typedef struct
 {
-    DG_RESERVOIR_ID_T resID;
+    U32 resID;
     U32 setFillToVolumeMl;
     U32 setDrainToVolumeMl;
 } DG_RESERVOIRS_DATA_PAYLOAD_T;
@@ -130,6 +130,22 @@
     U32 adjustType;
 } UF_SETTINGS_CHANGE_CONFIRMATION_PAYLOAD_T;
 
+typedef struct
+{
+    F32 TPi;
+    F32 TPo;
+    F32 TD1;
+    F32 TD2;
+    F32 TRo;
+    F32 TDi;
+    F32 HtrPrimThermo;
+    F32 HtrTrimThermo;
+    F32 HtrPrimColdJunc;
+    F32 HtrTrimColdJunc;
+    F32 HtrPrimInternal;
+    F32 HtrTrimInternal;
+} DG_TEMPERATURES_T;
+
 #pragma pack(pop)
 
 // ********** private data **********
@@ -1256,10 +1272,34 @@
         result = setNewLoadCellReadings( payload.res1PrimaryLoadCell, payload.res1BackupLoadCell, payload.res2PrimaryLoadCell, payload.res2BackupLoadCell );
     }
     // TODO - what to do if invalid payload length?
+    // TODO - how to know if DG stops sending these?
 }
 
 /*************************************************************************
  * @brief
+ * The handleDGTemperatureData function handles a temperature readings \n
+ * broadcast message from the DG.
+ * @details
+ * Inputs : none
+ * Outputs : message handled
+ * @param message : a pointer to the message to handle
+ * @return none
+ *************************************************************************/
+void handleDGTemperatureData( MESSAGE_T *message )
+{
+    if ( message->hdr.payloadLen == sizeof(DG_TEMPERATURES_T) )
+    {
+        DG_TEMPERATURES_T payload;
+
+        memcpy( &payload, message->payload, sizeof(DG_TEMPERATURES_T) );
+        setDialysateTemperatureReadings( payload.TDi, payload.TRo );
+    }
+    // TODO - what to do if invalid payload length?
+    // TODO - how to know if DG stops sending these?
+}
+
+/*************************************************************************
+ * @brief
  * The handleROPumpData function handles an RO pump data broadcast \n
  * message from the DG.
  * @details
@@ -1341,7 +1381,7 @@
          DG_RESERVOIRS_DATA_PAYLOAD_T payload;
 
          memcpy( &payload, message->payload, sizeof(DG_RESERVOIRS_DATA_PAYLOAD_T) );
-         setDGReservoirsData( payload.resID, payload.setFillToVolumeMl, payload.setDrainToVolumeMl );
+         setDGReservoirsData( (DG_RESERVOIR_ID_T)payload.resID, payload.setFillToVolumeMl, payload.setDrainToVolumeMl );
      }
      // TODO - what to do if invalid payload length?
 }
Index: firmware/App/Services/SystemCommMessages.h
===================================================================
diff -u -r477515fb4a6518b538fd218a1638ba2958e82d1c -r7c8ec681f8c5dc44674893b5c3924a6203f2c8d0
--- firmware/App/Services/SystemCommMessages.h	(.../SystemCommMessages.h)	(revision 477515fb4a6518b538fd218a1638ba2958e82d1c)
+++ firmware/App/Services/SystemCommMessages.h	(.../SystemCommMessages.h)	(revision 7c8ec681f8c5dc44674893b5c3924a6203f2c8d0)
@@ -45,6 +45,9 @@
 // MSG_ID_LOAD_CELL_READINGS
 void handleLoadCellReadingsFromDG( MESSAGE_T *message );
 
+// MSG_ID_DG_TEMPERATURE_DATA:
+void handleDGTemperatureData( MESSAGE_T *message );
+
 // MSG_ID_RO_PUMP_DATA:
 void handleROPumpData( MESSAGE_T *message );