Index: leahi_dialin/td/treatment_delivery.py
===================================================================
diff -u -rc5bfcf84ed942ca5841bf9de155aa0f495b4d28d -rb9e9c4477d1083db8d96beafd98ae6cd96ea432f
--- leahi_dialin/td/treatment_delivery.py	(.../treatment_delivery.py)	(revision c5bfcf84ed942ca5841bf9de155aa0f495b4d28d)
+++ leahi_dialin/td/treatment_delivery.py	(.../treatment_delivery.py)	(revision b9e9c4477d1083db8d96beafd98ae6cd96ea432f)
@@ -100,6 +100,9 @@
             self.can_interface.register_receiving_publication_function(DenaliChannels.ui_to_td_ch_id,
                                                                        self.msg_id_ui_version_info_response,
                                                                        self._handler_ui_version_response_sync)
+            # Dialin will send a login message during construction. This is for the leahi subsystems to start
+            # publishing CAN data when there is no UI connected as the UI typically does this job.
+            self.cmd_log_in_to_td()
 
         # create properties
         self.td_op_mode_timestamp = 0.0