Index: dialin/common/hd_defs.py
===================================================================
diff -u -r17d1bd89072f51a9151d548ffd485a0daac7c59e -r2976d64bc36da24b20e3db5c6a98bd97e45f82c4
--- dialin/common/hd_defs.py	(.../hd_defs.py)	(revision 17d1bd89072f51a9151d548ffd485a0daac7c59e)
+++ dialin/common/hd_defs.py	(.../hd_defs.py)	(revision 2976d64bc36da24b20e3db5c6a98bd97e45f82c4)
@@ -342,14 +342,12 @@
     HD_EVENT_SERVICE_UPDATE                                 =  9    # HD new service record has been updated
     HD_EVENT_USAGE_INFO_UPDATE                              = 10    # HD new usage information has been updated
     HD_EVENT_SW_CONFIG_UPDATE                               = 11    # HD new software configuration has been updated
-    HD_EVENT_BUTTON                                         = 12    # HD button pressed/released
-    HD_EVENT_SAFETY_LINE                                    = 13    # HD safety line pulled/released
-    HD_EVENT_RSRVR_1_LOAD_CELL_START_VALUES                 = 14    # HD reservoir 1 load cells start values
-    HD_EVENT_RSRVR_1_LOAD_CELL_END_VALUES                   = 15    # HD reservoir 2 load cells end values
-    HD_EVENT_RSRVR_2_LOAD_CELL_START_VALUES                 = 16    # HD reservoir 2 load cells start values
-    HD_EVENT_RSRVR_2_LOAD_CELL_END_VALUES                   = 17    # HD reservoir 2 load cells end values
-    HD_EVENT_SUB_STATE_CHANGE                               = 18    # HD Op sub-state change event
-    NUM_OF_EVENT_IDS                                        = 19    # Total number of HD events
+    HD_EVENT_RSRVR_1_LOAD_CELL_START_VALUES                 = 12    # HD reservoir 1 load cells start values
+    HD_EVENT_RSRVR_1_LOAD_CELL_END_VALUES                   = 13    # HD reservoir 2 load cells end values
+    HD_EVENT_RSRVR_2_LOAD_CELL_START_VALUES                 = 14    # HD reservoir 2 load cells start values
+    HD_EVENT_RSRVR_2_LOAD_CELL_END_VALUES                   = 15    # HD reservoir 2 load cells end values
+    HD_EVENT_SUB_STATE_CHANGE                               = 16    # HD Op sub-state change event
+    NUM_OF_EVENT_IDS                                        = 17    # Total number of HD events
 
 
 @unique