Index: leahi_dialin/dd/modules/balancing_chamber.py
===================================================================
diff -u -r20c821bd230fc7689a0275a2918981669ff5cc19 -r039d9f5987f79862f10c026e6ca103d8139be1fa
--- leahi_dialin/dd/modules/balancing_chamber.py	(.../balancing_chamber.py)	(revision 20c821bd230fc7689a0275a2918981669ff5cc19)
+++ leahi_dialin/dd/modules/balancing_chamber.py	(.../balancing_chamber.py)	(revision 039d9f5987f79862f10c026e6ca103d8139be1fa)
@@ -55,6 +55,7 @@
         self.current_bal_chamber_switching_counter = 0          #: The Balancing Chamber's switching counter
         self.is_pressure_stabilized_during_fill = 0             #: Is pressure stabilized during fill or not
         self.bal_chamber_switch_only_state = 0                  #: The Balancing Chamber's switch only state
+        self.is_bal_chamber_switching_active = 0                #: Is Balancing Chamber Switching Active
         self.dd_bal_chamber_timestamp = 0                       #: The timestamp of the last message
 
 
@@ -64,7 +65,7 @@
               "switching_period", "bal_chamber_fill_in_progress",
               "current_bal_chamber_switching_counter",
               "is_pressure_stabilized_during_fill", "bal_chamber_switch_only_state",
-              "dd_bal_chamber_timestamp"])
+              "is_bal_chamber_switching_active", "dd_bal_chamber_timestamp"])
     def _handler_balancing_chamber_sync(self, message, timestamp=0.0):
         """
         Handles published balancing chamber data messages.
@@ -88,6 +89,8 @@
             message['message'][MsgFieldPositions.START_POS_FIELD_7:MsgFieldPositions.END_POS_FIELD_7]))[0]
         self.bal_chamber_switch_only_state = struct.unpack('I', bytearray(
             message['message'][MsgFieldPositions.START_POS_FIELD_8:MsgFieldPositions.END_POS_FIELD_8]))[0]
+        self.is_bal_chamber_switching_active = struct.unpack('I', bytearray(
+            message['message'][MsgFieldPositions.START_POS_FIELD_9:MsgFieldPositions.END_POS_FIELD_9]))[0]
 
         self.dd_bal_chamber_timestamp = timestamp