Index: leahi_dialin/common/msg_ids.py
===================================================================
diff -u -r6283fb6eb17b325b4e9c7947ac07a7b2e84c378d -ref2941249089bf9eeb6f771112ce13a4a1f39a36
--- leahi_dialin/common/msg_ids.py	(.../msg_ids.py)	(revision 6283fb6eb17b325b4e9c7947ac07a7b2e84c378d)
+++ leahi_dialin/common/msg_ids.py	(.../msg_ids.py)	(revision ef2941249089bf9eeb6f771112ce13a4a1f39a36)
@@ -131,6 +131,7 @@
     MSG_ID_TD_DATE_AND_TIME_RESPONSE = 0x6D
     MSG_ID_DD_DATE_AND_TIME_REQUEST = 0x6E
     MSG_ID_DD_DATE_AND_TIME_RESPONSE = 0x6F
+    MSG_ID_DD_DRY_BICART_DATA = 0x70
     MSG_ID_FP_RO_REJECTION_RATIO_DATA = 0x71
     MSG_ID_UI_PRESSURE_LIMITS_CHANGE_REQUEST = 0x72
     MSG_ID_TD_PRESSURE_LIMITS_CHANGE_RESPONSE = 0x73
@@ -180,9 +181,9 @@
     MSG_ID_TD_ISOLATED_UF_CONFIRM_RESPONSE = 0xA0
     MSG_ID_UI_ADJUST_START_TREATMENT_REQUEST = 0xA1
     MSG_ID_TD_ADJUST_START_TREATMENT_RESPONSE = 0xA2
-    
+
     MSG_ID_DD_PISTON_PUMP_CONTROL_DATA = 0xF0
-    
+
     MSG_ID_TD_TESTER_LOGIN_REQUEST = 0x8000
     MSG_ID_TD_SOFTWARE_RESET_REQUEST = 0x8001
     MSG_ID_TD_SEND_TEST_CONFIGURATION = 0x8002
@@ -341,6 +342,12 @@
     MSG_ID_DD_RINSE_PUMP_PWM_PERCENT_OVERRIDE_REQUEST = 0xA054
     MSG_ID_DD_RINSE_PUMP_TURN_ON_OFF_REQUEST = 0xA055
     MSG_ID_DD_SET_CONDUCTIVITY_MODEL_REQUEST = 0xA056
+    MSG_ID_DD_DRY_BICART_DATA_PUBLISH_INTERVAL_OVERRIDE_REQUEST = 0xA057
+    MSG_ID_DD_DRY_BICART_FILL_CYCLE_MAX_OVERRIDE_REQUEST = 0xA058
+    MSG_ID_DD_DRY_BICART_FILL_REQUEST_OVERRIDE_REQUEST = 0xA059
+    MSG_ID_DD_BICARB_CHAMBER_FILL_REQUEST_OVERRIDE_REQUEST = 0xA05A
+    MSG_ID_DD_BICART_DRAIN_REQUEST_OVERRIDE_REQUEST = 0xA05B
+    MSG_ID_DD_BICART_CARTRIDGE_SELECT_OVERRIDE_REQUEST = 0xA05C
 
     # Placeholder messages
     MSG_ID_DD_ALARM_STATE_OVERRIDE_REQUEST = 0xAF03
Index: leahi_dialin/dd/dialysate_delivery.py
===================================================================
diff -u -rf66c019100e98b49cd94fa0a69951a1a7c952da0 -ref2941249089bf9eeb6f771112ce13a4a1f39a36
--- leahi_dialin/dd/dialysate_delivery.py	(.../dialysate_delivery.py)	(revision f66c019100e98b49cd94fa0a69951a1a7c952da0)
+++ leahi_dialin/dd/dialysate_delivery.py	(.../dialysate_delivery.py)	(revision ef2941249089bf9eeb6f771112ce13a4a1f39a36)
@@ -100,6 +100,16 @@
             self.can_interface.register_receiving_publication_function(channel_id,
                                                                        self.msg_id_dd_debug_event,
                                                                        self._handler_dd_debug_event_sync)
+            # For current builds and setups without UI, there are no CAN messages sent on the bus to let the
+            # subsystems know there are other nodes and start publishing. Dialin will send a plain ACK to the CANbus over
+            # the dd channel to start publishing.
+            message = DenaliMessage.build_message(
+                channel_id=DenaliChannels.dialin_to_dd_ch_id,
+                message_id=MsgIds.MSG_ID_ACK_MESSAGE_THAT_REQUIRES_ACK.value,
+                payload=bytearray(),
+                seq=0)
+            if message is not None:
+                self.can_interface.send(message, 0, is_ack=True)
 
         # create properties
         self.dd_op_mode_timestamp = 0.0
Index: leahi_dialin/dd/modules/valves.py
===================================================================
diff -u -r2bfa4ffb03efe85b31affb7b60dea4e33d368777 -ref2941249089bf9eeb6f771112ce13a4a1f39a36
--- leahi_dialin/dd/modules/valves.py	(.../valves.py)	(revision 2bfa4ffb03efe85b31affb7b60dea4e33d368777)
+++ leahi_dialin/dd/modules/valves.py	(.../valves.py)	(revision ef2941249089bf9eeb6f771112ce13a4a1f39a36)
@@ -63,6 +63,7 @@
             self.can_interface.register_receiving_publication_function(channel_id, self.msg_id_dd_valves_states_data, self._handler_valves_sync)
 
         self.valve_states_all = 0x00000000
+
         self.d14_valv = {"id": dd_enum_repository.DDValveNames.D14_VALV.value, "state": DEENERGIZED}
         self.d52_valv = {"id": dd_enum_repository.DDValveNames.D52_VALV.value, "state": DEENERGIZED}
         self.d8_valv = {"id": dd_enum_repository.DDValveNames.D8_VALV.value, "state": DEENERGIZED}