Index: firmware/App/Services/DDInterface.c
===================================================================
diff -u -r8492830da5862d7eeaea89d30efb5ea5dcc22572 -ra57af2726f27208a2de96e9331678caf022d927d
--- firmware/App/Services/DDInterface.c	(.../DDInterface.c)	(revision 8492830da5862d7eeaea89d30efb5ea5dcc22572)
+++ firmware/App/Services/DDInterface.c	(.../DDInterface.c)	(revision a57af2726f27208a2de96e9331678caf022d927d)
@@ -506,6 +506,35 @@
 
 /*********************************************************************//**
  * @brief
+ * The handleDDCommandResponseMsg function handles a DD command response
+ * message received by TD.
+ * @details \b Inputs: DD command response message.
+ * @details \b Outputs: DD command response recorded in DDInterface.
+ * @param message Pointer to the received DD command response message.
+ * @return TRUE if the response is valid, otherwise FALSE.
+ *************************************************************************/
+BOOL handleDDCommandResponseMsg( MESSAGE_T *message )
+{
+    BOOL result = FALSE;
+
+    if ( sizeof( DD_CMD_RESPONSE_T ) == message->hdr.payloadLen )
+    {
+        DD_CMD_RESPONSE_T response;
+
+        memcpy( &response,
+                &message->payload[ 0 ],
+                sizeof( DD_CMD_RESPONSE_T ) );
+
+        handleDDCommandResponse( &response );
+
+        result = TRUE;
+    }
+
+    return result;
+}
+
+/*********************************************************************//**
+ * @brief
  * The handleDDCommandResponse function processes the latest DD command response.
  * @details \b Alarm: ALARM_ID_TD_DD_COMMAND_INVALID_PARAMETER_FAULT if reported
  * response indicates DD rejected command due to invalid parameter.
@@ -628,23 +657,29 @@
 
 /*********************************************************************//**
  * @brief
- * The cmdStartDDHeatDisinfect function sends a Heat Disinfection start
- * request to the DD.
- * @details \b Inputs: none
- * @details \b Outputs: Heat Disinfection start request sent to DD.
+ * The cmdSendDDCommand function sends a command request to the DD.
+ * @details \b Inputs: command.
+ * @details \b Outputs: Previous response for the command cleared and
+ * command request sent to DD.
+ * @param command DD command requested by TD.
  * @return none
  *************************************************************************/
-void cmdStartDDHeatDisinfect( void )
+void cmdSendDDCommand( DD_COMMAND_T command )
 {
-    DD_COMMAND_T command = DD_CMD_START_DISINFECT_HEAT;
+    U32 payload = (U32)command;
 
-    ddCmdResp[ DD_CMD_START_DISINFECT_HEAT ].commandID = DD_CMD_NONE;
+    if ( ( DD_CMD_NONE < command ) && ( command < NUM_OF_DD_COMMANDS ) )
+    {
+        // Clear any previous response for this command.
+        ddCmdResp[ command ].commandID  = DD_CMD_NONE;
+        ddCmdResp[ command ].rejected   = TRUE;
+        ddCmdResp[ command ].rejectCode = DD_CMD_REQUEST_REJECT_REASON_NONE;
 
 #ifndef TEST_UI_ONLY
-    sendMessage( MSG_ID_TD_DD_HEAT_DISINFECT_REQUEST,
-                 COMM_BUFFER_OUT_CAN_TD_2_DD,
-                 (U08 *)&command, sizeof( U32 ) );
+        sendMessage( MSG_ID_TD_DD_COMMAND_REQUEST, COMM_BUFFER_OUT_CAN_TD_2_DD,
+                     (U08 *)&payload, sizeof( U32 ) );
 #endif
+    }
 }