| 摘要 |
An information processing apparatus is provided for preventing an operator from erroneously rewriting data, by which a process can be performed only by connecting an external storage device to a CPU unit without checking whether a user program in the CPU unit is newer or older than that in the external storage device. For carrying out the present invention, in the information processing apparatus according to the present invention, setting parameters selected from a plurality of setting parameters are set to the external storage device and the CPU unit, and the setting parameters set in the external storage device and the CPU unit are compared. If the parameters are matched with each other, whether the user program stored in the CPU unit is newer or older than that stored in the external storage device is determined by the comparison of the stored times, and then an update process, a backup process, or a restore process is performed according to the matched setting parameter of the CPU unit and that of the external storage device. |
