| 摘要 |
PURPOSE:To protect a data processor from the operating mistakes of the maintenance engineers, etc., by limiting the remote maintenance actions based on the maintenance contents set in response to a password. CONSTITUTION:A remote maintenance device 5 transmits and receives messages between a MODEM 4 and a data processor 6 via a message transmission/ reception part 51. These messages are analyzed by a message analyzing part 52. A password setting part 53 sets a password of the processor 6 via a user, and the password set for a host maintenance enginner is stored in a password memory part 54. While the passwords set for the lower rank maintenance engineers are stored in a password memory part 55. A remote maintenance function limiting part 56 limits the remote maintenance functions based on those remote maintenance functions registered in a remote maintenance function limit memory part 57 and can be carried out by both host and lower rank maintenance engineers. Thus it is possible to protect the processor 6 from destruction of a register or a memory caused by the operating mistakes of the maintenance engineers, etc. |
