Index: firmware/App/Controllers/DGInterface.c
===================================================================
diff -u -rc4d489831394f0954dfcddf8158baf0da09ad5c8 -rbc8403b288e167f51c9e991c2a07bb455c77c19a
--- firmware/App/Controllers/DGInterface.c	(.../DGInterface.c)	(revision c4d489831394f0954dfcddf8158baf0da09ad5c8)
+++ firmware/App/Controllers/DGInterface.c	(.../DGInterface.c)	(revision bc8403b288e167f51c9e991c2a07bb455c77c19a)
@@ -786,9 +786,31 @@
     }
     else
     {
-        // TODO - s/w fault
+        SET_ALARM_WITH_2_U32_DATA( ALARM_ID_HD_SOFTWARE_FAULT, SW_FAULT_ID_HD_INVALID_RESERVOIR_ID, (U32)resID );
     }
 }
+
+/*********************************************************************//**
+ * @brief
+ * The cmdChangeDGValveSetting function sends a change valve setting command
+ * message to the DG.
+ * @details Inputs: none
+ * @details Outputs: change valve setting command sent to DG.
+ * @param valveSettingID ID of valve setting to change to
+ * @return none
+ *************************************************************************/
+void cmdChangeDGValveSetting( DG_VALVE_SETTING_ID_T valveSettingID )
+{
+    if ( valveSettingID < NUM_OF_VALVE_SETTTINGS )
+    {
+        dgCmdResp[ DG_CMD_VALVE_SETTING ].commandID = DG_CMD_NONE;
+        sendDGChangeValveSettingCommand( (U32)valveSettingID );
+    }
+    else
+    {
+        SET_ALARM_WITH_2_U32_DATA( ALARM_ID_HD_SOFTWARE_FAULT, SW_FAULT_ID_HD_INVALID_VALVE_SETTING_ID, (U32)valveSettingID );
+    }
+}
 
 /*********************************************************************//**
  * @brief