Index: firmware/App/Services/DDInterface.c
===================================================================
diff -u -r1b83a4555c4040a45cecfbea45b6570812ab281e -rc34ad5cb83749cca78001409699a1fecf1436b7f
--- firmware/App/Services/DDInterface.c	(.../DDInterface.c)	(revision 1b83a4555c4040a45cecfbea45b6570812ab281e)
+++ firmware/App/Services/DDInterface.c	(.../DDInterface.c)	(revision c34ad5cb83749cca78001409699a1fecf1436b7f)
@@ -461,6 +461,36 @@
 
 /*********************************************************************//**
  * @brief
+ * The cmdChangeDialysateTemperature function sends a generate dialysate
+ * command to the DD with a given new dialysate temperature.
+ * @details \b Inputs: none
+ * @details \b Outputs: dialysateDeliveryCmdSet
+ * @details \b Message \b Sent: Continue generate dialysate command w/ new
+ * dialysate temperature.
+ * @param dialTemp Target dialysate temperature in deg C.
+ * @return none
+ *************************************************************************/
+void cmdChangeDialysateTemperature( F32 dialTemp )
+{
+    if ( TRUE == dialysateDeliveryCmdSet.start )
+    {
+        dialysateDeliveryCmdSet.dialTemp = dialTemp;
+
+#ifndef TEST_UI_ONLY
+        sendMessage( MSG_ID_DD_GEN_DIALYSATE_REQUEST_DATA,
+                     COMM_BUFFER_OUT_CAN_TD_2_DD,
+                     (U08*)(&dialysateDeliveryCmdSet),
+                     sizeof( DIALYSATE_DELIVERY_REQ_PAYLOAD_T ) );
+#endif
+    }
+    else
+    {
+        // TODO - s/w fault?
+    }
+}
+
+/*********************************************************************//**
+ * @brief
  * The cmdBypassDialyzer function sends a generate dialysate command to the DD
  * with a given flag indicating whether dialyzer should be bypassed.
  * @details \b Inputs: none