CONTROL PROGRAM MANAGEMENT APPARATUS, CONTROLLER APPARATUS, AND CONTROL SYSTEM

摘要

A computer apparatus (101) manages a control program wherein a device identifier which is an identifier of a device is described. Using a machine ID which is a unique value for a controller apparatus (102) which executes the control program, the computer apparatus (101) generates a pseudorandom number, and, using the generated pseudorandom number, substitutes another device identifier for the device identifier which is described in the control program. The computer apparatus (101) outputs the control program for which the device identifier has been substituted to the controller apparatus (102).