Index: firmware/App/Services/SystemCommRO.c
===================================================================
diff -u -r129a1c2f4343bc85efdb4767c2dec35e4ba8ce98 -r8e7d30d231de616b58a765d98495ba34010781c8
--- firmware/App/Services/SystemCommRO.c	(.../SystemCommRO.c)	(revision 129a1c2f4343bc85efdb4767c2dec35e4ba8ce98)
+++ firmware/App/Services/SystemCommRO.c	(.../SystemCommRO.c)	(revision 8e7d30d231de616b58a765d98495ba34010781c8)
@@ -21,7 +21,7 @@
 
 // ********** private definitions **********
 
-#define DG_COMM_TIMEOUT_IN_MS           1000                                                       ///< DD has not checked in for this much time
+#define DD_COMM_TIMEOUT_IN_MS           1000                                        ///< DD has not checked in for this much time
 
 #define MAX_COMM_CRC_FAILURES           5                                           ///< Maximum number of CRC errors within window period before alarm
 #define MAX_COMM_CRC_FAILURE_WINDOW_MS  (10 * SEC_PER_MIN * MS_PER_SECOND)          ///< CRC error window
@@ -195,7 +195,7 @@
     {
         RO_OP_MODE_T opMode  = getCurrentOperationMode();
 
-        if ( TRUE == didTimeout( timeOfLastDDCheckIn, DG_COMM_TIMEOUT_IN_MS ) )
+        if ( TRUE == didTimeout( timeOfLastDDCheckIn, DD_COMM_TIMEOUT_IN_MS ) )
         {
 #ifndef RUN_WITHOUT_DD
             // Only alarm on DG comm loss while in the treatment workflow