42BHT-805BWB4.3 Executing User ProgramsUser programs (application programs) can be executed using the following methods.Select the most appropriate method to meet the objective.4.3.1 Executing from the SYSTEM MENU “EXECUTE PROGRAM”Select the program to be executed at the SYSTEM MENU “EXECUTE PROGRAM” menu.In such a case, the selected program will always be executed from the start.Refer to section ”4.5.2 Executing User Programs (EXECUTE PROGRAM Menu)” for details.4.3.2 Automatically Executing the Program Set at the SYSTEM MENUwhen Turning the Power ONSelect the program to be executed at the SYSTEM MENU “EXECUTE PROGRAM” menu, and then turnthe BHT power OFF. The selected program will executed automatically the next time the BHT power isturned ON.If the resume function has been set, the BHT will resume from the position in the program that wasstopped when the BHT power was last turned OFF.Refer to section ”4.5.6 System Environment Settings (SET SYSTEM Menu)” for details.4.3.3 Executing the First Registered Program by Turning the Power ON(BHT System Directory Management Program Function)If no program has been selected at the SYSTEM MENU “EXECUTE PROGRAM” menu and the BHTpower is turned ON, control will switch to the directory management program, and the first of the programs(.PD4) registered in the BHT will be executed.If the resume function has been set, the BHT will resume from the position in the program that wasstopped when the BHT power was last turned OFF.If downloading multiple programs after system initialization, programs are registered in the system in theorder in which they are downloaded, and therefore ensure that the program to be executed is the firstprogram downloaded.If a program is later downloaded for purpose of upgrading the version, use the same program name. Theorder in which programs are registered in the system will not change, and therefore the same program willbe executed even after upgrading the version. (∗)∗ The system directory management program also manages files with other extensions simultaneously. Ifthe top file from the first registered program is deleted and a new program is downloaded, the newprogram will be registered in the position vacated by the deleted file and therefore caution is advised. Itis recommended that the program to be execute after turning on the BHT power is first downloadedfollowing system initialization.