DIGITAL PROTECTION CONTROLLER AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To enhance responsiveness and reliability of an application program for control by an intermediate language of Java (registered trademark) to an equivalent level to that of a program created by a C language or an assembly language. SOLUTION: The responsiveness equivalent to that of the program created by the C language and the assembly language is secured by executing application 29 for a digital shape protection controller consisting of the intermediate language of Java by converting it into does which can be directly executed by a CPU 1 by JIT compiler 24. In addition, lowering of program responsiveness due to garbage collection is alleviated by intermittently executing the garbage collection of a memory by dividing it into plural times by distributed garbage collection 25. Furthermore, the reliability equivalent to that of the program created by the C language and the assembly langue is secured by a self- diagnostic function and an RAS function 26.