Index: firmware/App/Controllers/DialInFlow.c
===================================================================
diff -u -rd0f8958c30ff294da7e5088b89226f0ac30f3a36 -rc29d60cd59d549a617ed077248f5d19dfec74e76
--- firmware/App/Controllers/DialInFlow.c	(.../DialInFlow.c)	(revision d0f8958c30ff294da7e5088b89226f0ac30f3a36)
+++ firmware/App/Controllers/DialInFlow.c	(.../DialInFlow.c)	(revision c29d60cd59d549a617ed077248f5d19dfec74e76)
@@ -1097,6 +1097,7 @@
     if ( ++dialInFlowDataPublicationTimerCounter >= getU32OverrideValue( &dialInFlowDataPublishInterval ) )
     {
         DIALIN_PUMP_STATUS_PAYLOAD_T payload;
+        HD_OP_MODE_T opMode = getCurrentOperationMode();
 
         payload.setPoint = targetDialInFlowRate;
         payload.measFlow = getMeasuredDialInFlowRate();
@@ -1106,6 +1107,14 @@
         payload.measMCCurr = getMeasuredDialInPumpMCCurrent();
         payload.pwmDC = dialInPumpPWMDutyCyclePctSet * FRACTION_TO_PERCENT_FACTOR;
         payload.rotorCount = getDialInPumpRotorCount();
+        if ( ( MODE_PRET == opMode ) || ( MODE_TREA == opMode ) || ( MODE_POST == opMode ) )
+        {   // prescribed flow only available in treatment modes
+            payload.presFlow = getTreatmentParameterS32( TREATMENT_PARAM_DIALYSATE_FLOW );
+        }
+        else
+        {
+            payload.presFlow = 0.0F;
+        }
         broadcastData( MSG_ID_DIALYSATE_FLOW_DATA, COMM_BUFFER_OUT_CAN_HD_BROADCAST, (U08*)&payload, sizeof( DIALIN_PUMP_STATUS_PAYLOAD_T ) );
         dialInFlowDataPublicationTimerCounter = 0;
     }