Index: suite_leahi/tst_main_treatment/test.py
===================================================================
diff -u -r535c5a49b6d814e8531fa43fc816f0658d1bafef -rbb0ea45aa227631363b51145e918c5f1d446918e
--- suite_leahi/tst_main_treatment/test.py	(.../test.py)	(revision 535c5a49b6d814e8531fa43fc816f0658d1bafef)
+++ suite_leahi/tst_main_treatment/test.py	(.../test.py)	(revision bb0ea45aa227631363b51145e918c5f1d446918e)
@@ -26,7 +26,8 @@
 from configuration                import utility, config
 from leahi_dialin.common.td_defs  import TDOpModes,TDTreatmentStates
 from leahi_dialin.common.ui_defs  import TXStates
-from leahi_dialin.common.msg_defs import MsgIds, MsgFieldPositions
+from leahi_dialin.common.msg_ids    import MsgIds
+from leahi_dialin.common.constants  import MSG_HEADER_SIZE
 from leahi_dialin.utils           import conversions
 from leahi_dialin.protocols       import CAN
 
@@ -59,7 +60,7 @@
     @return: None
     """
     message = message["message"]
-    index = MsgFieldPositions.START_POS_FIELD_1
+    index = MSG_HEADER_SIZE
 
     state, index = conversions.bytearray_to_integer(message, index)
     global newTreatmentDuration