Index: leahi_dialin/td/treatment_delivery.py
===================================================================
diff -u -rbd45f04f6e4f66ec2b121f496bc8db20ca00a6b8 -r0c1da102269169d5b63f91e146488b20eaa883a7
--- leahi_dialin/td/treatment_delivery.py	(.../treatment_delivery.py)	(revision bd45f04f6e4f66ec2b121f496bc8db20ca00a6b8)
+++ leahi_dialin/td/treatment_delivery.py	(.../treatment_delivery.py)	(revision 0c1da102269169d5b63f91e146488b20eaa883a7)
@@ -23,6 +23,7 @@
 from .modules.buttons import TDButtons
 from .modules.pressure_sensors import TDPressureSensors
 from .modules.switches import TDSwitches
+from .modules.treatment import TDTreatment
 from .modules.valves import TDValves
 from .modules.voltages import TDVoltages
 
@@ -122,6 +123,7 @@
         self.buttons = TDButtons(self.can_interface, self.logger)
         self.pressure_sensors = TDPressureSensors(self.can_interface, self.logger)
         self.switches = TDSwitches(self.can_interface, self.logger)
+        self.treatment = TDTreatment(self.can_interface, self.logger)
         self.valves = TDValves(self.can_interface, self.logger)
         self.voltages = TDVoltages(self.can_interface, self.logger)
 
@@ -267,7 +269,7 @@
         payload = integer_to_bytearray(new_mode)
 
         message = DenaliMessage.build_message(channel_id=DenaliChannels.dialin_to_td_ch_id,
-                                              message_id=MsgIds.MSG_ID_TD_SET_OP_MODE_REQUEST.value,
+                                              message_id=MsgIds.MSG_ID_TD_OP_MODE_OVERRIDE_REQUEST.value,
                                               payload=payload)
 
         self.logger.debug("Requesting TD mode change to " + str(new_mode))
@@ -318,5 +320,48 @@
         self.logger.debug("Sending an UI version request to the TD.")
         self.can_interface.send(message, 0)
 
+    def cmd_op_mode_broadcast_interval_override(self, ms: int, reset: int = NO_RESET) -> int:
+        """
+        Constructs and sends the measured op mode broadcast interval override command
+        Constraints:
+            Must be logged into TD.
+            Given interval must be non-zero and a multiple of the TD general task interval (50 ms).
 
+        @param ms:  integer - interval (in ms) to override with
+        @param reset:  integer - 1 to reset a previous override, 0 to override
+        @return: 1 if successful, zero otherwise
+        """
 
+        if not check_broadcast_interval_override_ms(ms):
+            return False
+
+        rst = integer_to_bytearray(reset)
+        mis = integer_to_bytearray(ms)
+        payload = rst + mis
+
+        message = DenaliMessage.build_message(channel_id=DenaliChannels.dialin_to_td_ch_id,
+                                              message_id=MsgIds.MSG_ID_TD_OP_MODE_PUBLISH_INTERVAL_OVERRIDE_REQUEST.value,
+                                              payload=payload)
+
+        self.logger.debug("override op mode broadcast interval")
+
+        # Send message
+        received_message = self.can_interface.send(message)
+
+        # If there is content...
+        if received_message is not None:
+            # self.logger.debug(received_message)
+            if reset == RESET:
+                str_res = "reset back to normal: "
+            else:
+                str_res = str(ms) + " ms: "
+            self.logger.debug("Blood flow broadcast interval overridden to " + str_res +
+                              str(received_message['message'][DenaliMessage.PAYLOAD_START_INDEX]))
+            # response payload is OK or not OK
+            return received_message['message'][DenaliMessage.PAYLOAD_START_INDEX]
+        else:
+            self.logger.debug("Timeout!!!!")
+            return False
+
+
+