Index: leahi_dialin/dd/modules/balancing_chamber.py
===================================================================
diff -u -rec8a2600b9e8cf6fe7e02c200a1c24221ca86863 -r0e852e50782a638367a1139f8c56cd8d722ba648
--- leahi_dialin/dd/modules/balancing_chamber.py	(.../balancing_chamber.py)	(revision ec8a2600b9e8cf6fe7e02c200a1c24221ca86863)
+++ leahi_dialin/dd/modules/balancing_chamber.py	(.../balancing_chamber.py)	(revision 0e852e50782a638367a1139f8c56cd8d722ba648)
@@ -81,7 +81,7 @@
         self.switching_period = struct.unpack('I', bytearray(
             message['message'][MsgFieldPositions.START_POS_FIELD_4:MsgFieldPositions.END_POS_FIELD_4]))[0]
         self.bal_chamber_fill_in_progress = struct.unpack('I', bytearray(
-            message['message'][MsgFieldPositions.START_POS_FIELD_5:MsgFieldPositions.END_POS_FIELD_6]))[0]
+            message['message'][MsgFieldPositions.START_POS_FIELD_5:MsgFieldPositions.END_POS_FIELD_5]))[0]
         self.current_bal_chamber_switching_counter = struct.unpack('I', bytearray(
             message['message'][MsgFieldPositions.START_POS_FIELD_6:MsgFieldPositions.END_POS_FIELD_6]))[0]
         self.is_pressure_stabilized_during_fill = struct.unpack('I', bytearray(