| 摘要 |
<p>PROBLEM TO BE SOLVED: To perform the maintenance of a station controller (station controlling) at a remote place while maintaining security. SOLUTION: This system consists of a communication network that can connect the station controller respectively provided at each station and a central device provided at a prescribed place of a head office, etc., a terminal equipment for maintenance connected to the communication network, a storing means which stores prescribed access program data for maintenance for setting the station controller in a maintenance mode when prescribed data is inputted from the terminal equipment for maintenance and is provided in the station controller, and a maintenance processing controlling means which performs prescribed maintenance processing such as to rewrite the data of the station controller on the basis of the prescribed data transmitted from the terminal equipment for maintenance when a station controlling means is set in a maintenance mode.</p> |
