Index: firmware/App/Controllers/DGInterface.c
===================================================================
diff -u -rd47b6f178dd68d49962c72a5ccb6e98152a2a1d0 -rc45f78c0ff3b0a866b7f6233092a2e611e801460
--- firmware/App/Controllers/DGInterface.c	(.../DGInterface.c)	(revision d47b6f178dd68d49962c72a5ccb6e98152a2a1d0)
+++ firmware/App/Controllers/DGInterface.c	(.../DGInterface.c)	(revision c45f78c0ff3b0a866b7f6233092a2e611e801460)
@@ -37,18 +37,19 @@
 
 // ********** private definitions **********
 
-#define START_DG_CMD                            TRUE                        ///< Parameter for DG start/stop command function.  True = start.
-#define STOP_DG_CMD                             FALSE                       ///< Parameter for DG start/stop command function.  False = stop.
+#define START_DG_CMD                             TRUE                        ///< Parameter for DG start/stop command function.  True = start.
+#define STOP_DG_CMD                              FALSE                       ///< Parameter for DG start/stop command function.  False = stop.
 
-#define SIZE_OF_LARGE_LOAD_CELL_AVG             32                          ///< Large load cell moving average has 32 samples.
+#define SIZE_OF_LARGE_LOAD_CELL_AVG              32                          ///< Large load cell moving average has 32 samples.
 
-#define DIALYSATE_TEMP_OUT_OF_TARGET_TOL_C      2.0F                        ///< Dialysate temperature out of target tolerance C.
-#define DIALYSATE_TEMP_OUT_OF_TARGET_TIMEOUT_MS ( 300 * MS_PER_SECOND )     ///< Dialysate temperature out of target timeout in milliseconds.
-#define DIALYSATE_TEMP_HIGH_SAFETY_LIMIT_C      46.0F                       ///< Dialysate high safety temperature limit in C.
-#define DIALYSATE_TEMP_HIGH_SAFETY_TIMEOUT_MS   ( 1 * MS_PER_SECOND )       ///< Dialysate temperature high safety timeout in milliseconds.
-#define DIALYSATE_TEMP_LOW_SAFETY_LIMIT_C       42.0F                       ///< Dialysate low safety temperature limit in C.
-#define DIALYSATE_TEMP_LOW_SAFETY_TIMEOUT_MS    ( 10 * MS_PER_SECOND )      ///< Dialysate temperature low safety timeout in milliseconds.
-#define DG_DATA_FRESHNESS_TIMEOUT_MS            ( 3 * MS_PER_SECOND )       ///< DG data freshness timeout (in ms).
+#define DIALYSATE_TEMP_OUT_OF_TARGET_TOL_C       2.0F                        ///< Dialysate temperature out of target tolerance C.
+#define DIALYSATE_TEMP_OUT_OF_TARGET_TIMEOUT_MS  ( 300 * MS_PER_SECOND )     ///< Dialysate temperature out of target timeout in milliseconds.
+#define DIALYSATE_TEMP_HIGH_SAFETY_LIMIT_C       46.0F                       ///< Dialysate high safety temperature limit in C.
+#define DIALYSATE_TEMP_HIGH_SAFETY_TIMEOUT_MS    ( 1 * MS_PER_SECOND )       ///< Dialysate temperature high safety timeout in milliseconds.
+#define DIALYSATE_TEMP_LOW_SAFETY_LIMIT_C        42.0F                       ///< Dialysate low safety temperature limit in C.
+#define DIALYSATE_TEMP_LOW_SAFETY_TIMEOUT_MS     ( 10 * MS_PER_SECOND )      ///< Dialysate temperature low safety timeout in milliseconds.
+#define DG_DATA_FRESHNESS_TIMEOUT_MS             ( 3 * MS_PER_SECOND )       ///< DG data freshness timeout (in ms).
+#define DIALYSATE_FLOW_FRESHNESS_TIMEOUT_MS      ( 300 * MS_PER_SECOND )     ///< Dialysate flow freshness timeout (in ms). // DN-31OCT2022
 
 // ********** private data **********
 
@@ -184,6 +185,7 @@
     initPersistentAlarm( ALARM_ID_HD_NEW_DIALYSATE_TEMPERATURE_DATA_MESSAGE_NOT_RECEIVE, DG_DATA_FRESHNESS_TIMEOUT_MS, DG_DATA_FRESHNESS_TIMEOUT_MS );
     initPersistentAlarm( ALARM_ID_HD_NEW_RESERVOIRS_DATA_MESSAGE_NOT_RECEIVE, DG_DATA_FRESHNESS_TIMEOUT_MS, DG_DATA_FRESHNESS_TIMEOUT_MS );
     initPersistentAlarm( ALARM_ID_HD_NEW_DG_OPERATION_MODE_MESSAGE_NOT_RECEIVE, DG_DATA_FRESHNESS_TIMEOUT_MS, DG_DATA_FRESHNESS_TIMEOUT_MS );
+    initPersistentAlarm( ALARM_ID_HD_DIAL_IN_FLOW_CHECK_FAILURE, DIALYSATE_FLOW_FRESHNESS_TIMEOUT_MS, DIALYSATE_FLOW_FRESHNESS_TIMEOUT_MS ); // DN-31OCT2022
 }
 
 /**********************************************************************//**
@@ -240,6 +242,9 @@
     // Trigger alarm if not receiving new DG op mode message in timely manner
     checkDGDataFreshness( ALARM_ID_HD_NEW_DG_OPERATION_MODE_MESSAGE_NOT_RECEIVE, &dgOpModeDataFreshFlag );
 
+    // Trigger alarm if not receiving new DG op mode message in timely manner
+    //checkDGDataFreshness( ALARM_ID_HD_DIAL_IN_FLOW_CHECK_FAILURE, &dgDialysateFlowDataFreshFlag ); // DN-31OCT2022 - TODO: Will remove this line???
+
     // Check to see if DG has restarted
     checkDGRestart();
 }