Index: firmware/App/Services/DDInterface.c
===================================================================
diff -u -r959f16a2530e68b517cbb5c12c430d5aef4c5f9d -ra5560a2917aa62bcafd8e6a81041ace723237109
--- firmware/App/Services/DDInterface.c	(.../DDInterface.c)	(revision 959f16a2530e68b517cbb5c12c430d5aef4c5f9d)
+++ firmware/App/Services/DDInterface.c	(.../DDInterface.c)	(revision a5560a2917aa62bcafd8e6a81041ace723237109)
@@ -305,7 +305,9 @@
     dialysateDeliveryCmdSet.acidType       = (U32)acid;
     dialysateDeliveryCmdSet.bicarbType     = (U32)bicarb;
 
+#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
     ddStartCommandSent = TRUE;
 }
 
@@ -324,7 +326,9 @@
     if ( TRUE == dialysateDeliveryCmdSet.start )
     {
         dialysateDeliveryCmdSet.dialRate = qd;
+#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
     {
@@ -347,7 +351,9 @@
     if ( TRUE == dialysateDeliveryCmdSet.start )
     {
         dialysateDeliveryCmdSet.ufRate = quf;
+#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
     {
@@ -371,7 +377,9 @@
     if ( TRUE == dialysateDeliveryCmdSet.start )
     {
         dialysateDeliveryCmdSet.bypassDialyzer = bypass;
+#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
     {
@@ -393,7 +401,9 @@
     memset( &dialysateDeliveryCmdSet, 0, sizeof( DIALYSATE_DELIVERY_REQ_PAYLOAD_T ) );
     dialysateDeliveryCmdSet.start = FALSE;
 
+#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
 }
 
 /*********************************************************************//**