Index: firmware/App/Controllers/Valves.c
===================================================================
diff -u -r229341f9eb23fec730cdf9b1f8f3960de2daf384 -re323c2ae230dede86877e33c4e8706555cde0bd5
--- firmware/App/Controllers/Valves.c	(.../Valves.c)	(revision 229341f9eb23fec730cdf9b1f8f3960de2daf384)
+++ firmware/App/Controllers/Valves.c	(.../Valves.c)	(revision e323c2ae230dede86877e33c4e8706555cde0bd5)
@@ -67,6 +67,7 @@
 static BOOL checkValveStateName( DD_VALVES_T valveID, VALVE_STATE_NAMES_T valveStateName );
 static U32 convertValveStateNameToValveState( VALVE_STATE_NAMES_T valveStateName );
 static U32 getValveState( U32 valveID );
+static BOOL getBypassState();
 
 /*********************************************************************//**
  * @brief
@@ -442,6 +443,29 @@
 
 /*********************************************************************//**
  * @brief
+ * The getBypassState function determines if the DD subsystem is in bypass
+ * state by checking if valve D34 is open/energized and valves D35 and D40
+ * are closed/deenergized.
+ * @details \b Inputs: none
+ * @details \b Outputs: bypass state
+ * @return whether if the DD subsystem is in the bypass state
+ *************************************************************************/
+BOOL getBypassState( void )
+{
+    BOOL result = FALSE;
+
+    if ( ( ENERGIZED == getValveState( D34_VALV ) ) &&
+        ( DEENERGIZED == getValveState( D35_VALV ) ) &&
+        ( DEENERGIZED == getValveState( D40_VALV ) ) )
+    {
+        result = TRUE;
+    }
+
+    return result;
+}
+
+/*********************************************************************//**
+ * @brief
  * The publishValvesStates function publishes DD valves states at the set interval.
  * @details \b Inputs: valvesStatesPublicationTimerCounter
  * @details \b Outputs: valvesStatesPublicationTimerCounter
@@ -465,6 +489,8 @@
             data.valvesSensedState[ i ] = (U08)getValveStateName( (DD_VALVES_T)i );
         }
 
+        data.bypassState        = getBypassState();
+
         broadcastData( MSG_ID_DD_VALVES_STATES_DATA, COMM_BUFFER_OUT_CAN_DD_BROADCAST, (U08*)&data, sizeof( DD_VALVES_DATA_T ) );
 
         valvesStatesPublicationTimerCounter = 0;
Index: firmware/App/Controllers/Valves.h
===================================================================
diff -u -r200dfbd12ee14a4dbe5ee1daaece7bfce9e8a104 -re323c2ae230dede86877e33c4e8706555cde0bd5
--- firmware/App/Controllers/Valves.h	(.../Valves.h)	(revision 200dfbd12ee14a4dbe5ee1daaece7bfce9e8a104)
+++ firmware/App/Controllers/Valves.h	(.../Valves.h)	(revision e323c2ae230dede86877e33c4e8706555cde0bd5)
@@ -41,10 +41,11 @@
 /// Valves publish structure
 typedef struct
 {
-    U16 valvesStatus;                             ///< 2 way valves status.
-    U08 valvesBCStatus;                           ///< Balancing chamber valves status.
-    U08 valvesUFStatus;                           ///< Ultrafiltration valves status.
-    U08 valvesSensedState[ DD_NUM_OF_VALVES ];       ///< DD valves sensed states.
+    U16 valvesStatus;                               ///< 2 way valves status.
+    U08 valvesBCStatus;                             ///< Balancing chamber valves status.
+    U08 valvesUFStatus;                             ///< Ultrafiltration valves status.
+    U08 valvesSensedState[ DD_NUM_OF_VALVES ];      ///< DD valves sensed states.
+    BOOL bypassState;                               ///< reports if the DD subsystem is in a bypass state
 } DD_VALVES_DATA_T;
 
 /// Balancing chamber valve states override structure