Index: firmware/App/Services/SystemCommMessages.c
===================================================================
diff -u -r6fc5708ce7e0c87a3447921b4a939e3a00e64cbd -r85c277d3d53a82302fdecdff0a42197298d92585
--- firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision 6fc5708ce7e0c87a3447921b4a939e3a00e64cbd)
+++ firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision 85c277d3d53a82302fdecdff0a42197298d92585)
@@ -4434,4 +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 );
+}
+
 /**@}*/