Index: firmware/App/Services/SystemCommMessages.c
===================================================================
diff -u -r0565c9c592a8b78978157e805269f5900f9636ce -re7e9ea67b63911dc9d8d46166fdd09e102111e3f
--- firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision 0565c9c592a8b78978157e805269f5900f9636ce)
+++ firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision e7e9ea67b63911dc9d8d46166fdd09e102111e3f)
@@ -373,7 +373,6 @@
     return result;
 }
 
-
 // ***********************************************************************
 // **************** Message Handling Helper Functions ********************
 // ***********************************************************************
@@ -3367,37 +3366,6 @@
 }
 
 /*********************************************************************//**
- * @brief
- * The handleFansRPMOverride function handles a request to override a fans RPM value.
- * @details Inputs: none
- * @details Outputs: message handled
- * @param message a pointer to the message to handle
- * @return none
- *************************************************************************/
-void handleFansRPMOverride( MESSAGE_T *message )
-{
-    TEST_OVERRIDE_ARRAY_PAYLOAD_T payload;
-    BOOL result = FALSE;
-
-    // verify payload length
-    if ( sizeof(TEST_OVERRIDE_ARRAY_PAYLOAD_T) == message->hdr.payloadLen )
-    {
-        memcpy( &payload, message->payload, sizeof(TEST_OVERRIDE_ARRAY_PAYLOAD_T) );
-        if ( FALSE == payload.reset )
-        {
-            result = testSetFanRPMOverride( payload.index, payload.state.f32 );
-        }
-        else
-        {
-            result = testResetFanRPMOverride( payload.index );
-        }
-    }
-
-    // respond to request
-    sendTestAckResponseMsg( (MSG_ID_T)message->hdr.msgID, result );
-}
-
-/*********************************************************************//**
 * @brief
 * The handleStopDGRTCClock function handles a request to stop the RTC clock.
 * @details Inputs: none
@@ -3536,10 +3504,41 @@
 
 /*********************************************************************//**
  * @brief
- * The handleTestFansRPMAlarmStartTimeOffsetRequest function handles a
- * request to set the fans RPM alarm start time offset.
+ * The handleFansRPMOverride function handles a request to override a fans RPM value.
  * @details Inputs: none
  * @details Outputs: message handled
+ * @param message a pointer to the message to handle
+ * @return none
+ *************************************************************************/
+void handleFansRPMOverride( MESSAGE_T *message )
+{
+    TEST_OVERRIDE_ARRAY_PAYLOAD_T payload;
+    BOOL result = FALSE;
+
+    // verify payload length
+    if ( sizeof(TEST_OVERRIDE_ARRAY_PAYLOAD_T) == message->hdr.payloadLen )
+    {
+        memcpy( &payload, message->payload, sizeof(TEST_OVERRIDE_ARRAY_PAYLOAD_T) );
+        if ( FALSE == payload.reset )
+        {
+            result = testSetFanRPMOverride( payload.index, payload.state.f32 );
+        }
+        else
+        {
+            result = testResetFanRPMOverride( payload.index );
+        }
+    }
+
+    // respond to request
+    sendTestAckResponseMsg( (MSG_ID_T)message->hdr.msgID, result );
+}
+
+/*********************************************************************//**
+ * @brief
+ * The handleTestFansRPMAlarmStartTimeOverrideRequest function handles a
+ * request to override the fan RPM alarm start time.
+ * @details Inputs: none
+ * @details Outputs: message handled
  * @param message : a pointer to the message to handle
  * @return none
  *************************************************************************/
@@ -3562,7 +3561,6 @@
 }
 
 /*********************************************************************//**
- * @brief
  * The handleTestUsedAcidVolumeMLOverrideRequest function handles a
  * request to override the acid volume.
  * @details Inputs: none
@@ -4436,4 +4434,35 @@
 }
 #endif
 
+/*********************************************************************//**
+ * @brief
+ * The handleTestDGSetDialysateMixingRatios function handles a request
+ * to set the dialysate mixing ratios.
+ * @details Inputs: none
+ * @details Outputs: message handled
+ * @param message a pointer to the message to handle
+ * @return none
+ *************************************************************************/
+void handleTestDGSetDialysateMixingRatios( MESSAGE_T *message )
+{
+    BOOL status     = FALSE;
+    U08* payloadPtr = message->payload;
+
+    if ( message->hdr.payloadLen >= ( 2 * sizeof(F32) ) )
+    {
+        F32 acidMixingRatio   = 0.0F;
+        F32 bicarbMixingRatio = 0.0F;
+
+        memcpy(&acidMixingRatio, payloadPtr, sizeof(F32));
+        payloadPtr += sizeof(F32);
+
+        memcpy(&bicarbMixingRatio, payloadPtr, sizeof(F32));
+
+        status = testSetDialysateMixingRatios( acidMixingRatio, bicarbMixingRatio );
+    }
+
+    // Respond to request
+    sendTestAckResponseMsg( (MSG_ID_T)message->hdr.msgID, status );
+}
+
 /**@}*/