Index: MsgDefs.h
===================================================================
diff -u -raa9f4807de98b0d6bc5450ba1769b112e830293d -r1a612ed89df0ad8fcfc3c6c2615794d5bc2920a7
--- MsgDefs.h	(.../MsgDefs.h)	(revision aa9f4807de98b0d6bc5450ba1769b112e830293d)
+++ MsgDefs.h	(.../MsgDefs.h)	(revision 1a612ed89df0ad8fcfc3c6c2615794d5bc2920a7)
@@ -367,7 +367,7 @@
     MSG_ID_PRESSURE_OVERRIDE = 0xA006,                                  ///< Pressure sensor override request
     MSG_ID_PRESSURE_SEND_INTERVAL_OVERRIDE = 0xA007,                    ///< Pressure data broadcast interval override request
     MSG_ID_DG_HD_COMMUNICATION_STATUS_OVERRIDE = 0xA008,                ///< DG HD Communication Status override
-    MSG_ID____AVAILABLE_6 = 0xA009,                                     ///< Unused - this message ID is available for use
+    MSG_ID_DG_SET_PRIMARY_AND_TRIMMER_HEATERS_TARGET_TEMP = 0xA009,     ///< DG set primary and trimmer heater target temperature
     MSG_ID_RO_PUMP_SEND_INTERVAL_OVERRIDE = 0xA00A,                     ///< RO pump data broadcast interval override request
     MSG_ID_DRAIN_PUMP_SET_RPM = 0xA00B,                                 ///< Drain pump set RPM override request
     MSG_ID_DRAIN_PUMP_SEND_INTERVAL_OVERRIDE = 0xA00C,                  ///< Drain pump data broadcast interval override request