Index: dialin/common/msg_ids.py
===================================================================
diff -u -r5b791b3c7d1d2498dbe52c4573225a56afffe2fb -rb16ecd5943dacb9a00bcfb0b78ac3ee5d3c2db7c
--- dialin/common/msg_ids.py	(.../msg_ids.py)	(revision 5b791b3c7d1d2498dbe52c4573225a56afffe2fb)
+++ dialin/common/msg_ids.py	(.../msg_ids.py)	(revision b16ecd5943dacb9a00bcfb0b78ac3ee5d3c2db7c)
@@ -306,7 +306,7 @@
     MSG_ID_HD_POST_TREATMENT_DATA_PUBLISH_INTERVAL_OVERRIDE = 0x8075
     MSG_ID_HD_BLOCK_MESSAGE_TRANSMISSION = 0x8076
     MSG_ID_HD_SYRINGE_PUMP_FORCE_SENSOR_DAC_CALIBRATE = 0x8077
-
+    MSG_ID_HD_STOP_RTC_CLOCK = 0x8078
     MSG_ID_DG_TESTER_LOGIN_REQUEST = 0XA000
     MSG_ID_DG_ALARM_STATE_OVERRIDE = 0XA001
     MSG_ID_DG_WATCHDOG_TASK_CHECKIN_OVERRIDE = 0XA002
@@ -372,6 +372,7 @@
     MSG_ID_DG_FLUSH_PUBLISH_INTERVAL_OVERRIDE = 0XA041
     MSG_ID_FILTER_FLUSH_TIME_PERIOD_OVERRIDE = 0XA042
     MSG_ID_DG_FANS_RPM_OVERRIDE = 0xA043
+    MSG_ID_DG_STOP_RTC_CLOCK = 0xA045
     MSG_ID_HD_DEBUG_EVENT = 0XFFF1
     MSG_ID_DG_DEBUG_EVENT = 0XFFF2
     MSG_ID_ACK_MESSAGE_THAT_REQUIRES_ACK = 0XFFFF
Index: dialin/dg/dialysate_generator.py
===================================================================
diff -u -r19ed99efea69f85cf5ea175a39555dfaa8e493e0 -rb16ecd5943dacb9a00bcfb0b78ac3ee5d3c2db7c
--- dialin/dg/dialysate_generator.py	(.../dialysate_generator.py)	(revision 19ed99efea69f85cf5ea175a39555dfaa8e493e0)
+++ dialin/dg/dialysate_generator.py	(.../dialysate_generator.py)	(revision b16ecd5943dacb9a00bcfb0b78ac3ee5d3c2db7c)
@@ -68,7 +68,7 @@
     DG_OP_MODE_INIT_POST = 2
     DG_OP_MODE_STANDBY = 3
     DG_OP_MODE_STANDBY_SOLO = 4
-    DG_OP_MODE_RECIRCULATE = 5
+    DG_OP_MODE_GEN_IDLE = 5
     DG_OP_MODE_FILL = 6
     DG_OP_MODE_DRAIN = 7
     DG_OP_MODE_FLUSH = 8
Index: dialin/hd/rtc.py
===================================================================
diff -u -r19ed99efea69f85cf5ea175a39555dfaa8e493e0 -rb16ecd5943dacb9a00bcfb0b78ac3ee5d3c2db7c
--- dialin/hd/rtc.py	(.../rtc.py)	(revision 19ed99efea69f85cf5ea175a39555dfaa8e493e0)
+++ dialin/hd/rtc.py	(.../rtc.py)	(revision b16ecd5943dacb9a00bcfb0b78ac3ee5d3c2db7c)
@@ -66,6 +66,36 @@
             message['message'][MsgFieldPositions.START_POS_FIELD_1:MsgFieldPositions.END_POS_FIELD_1]))[0]
         self.rtc_epoch = epoch
 
+    def cmd_stop_rtc(self):
+        """
+        Stops the HD RTC clock
+
+        @return: None
+        """
+        stop = 1
+        payload = integer_to_bytearray(stop)
+
+        message = DenaliMessage.build_message(channel_id=DenaliChannels.dialin_to_hd_ch_id,
+                                              message_id=MsgIds.MSG_ID_HD_STOP_RTC_CLOCK.value,
+                                              payload=payload)
+
+        self.logger.debug("Stopping the HD RTC")
+
+        # Send message
+        received_message = self.can_interface.send(message)
+
+        # If there is content...
+        if received_message is not None:
+
+            self.logger.debug(received_message)
+            self.logger.debug("RTC stop command was sent" +
+                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
+
     def cmd_set_rtc_time_and_date(self, second: int, minute: int, hour: int, day: int, month: int, year: int) -> int:
         """
         Sets the RTC time and date from the provided