| 摘要 |
<p>PROBLEM TO BE SOLVED: To efficiently monitor each state of various controllers by using a program high in versatility by adjusting the transfer of data among a server, a client and a network for requesting information and processing information returned in response to a request. SOLUTION: Server processing parts 10c and client processing parts 10d are provided for respective panel devices 10 and 12 entering the network 16. The server processing part 10c supplies service to the client processing part 10d of a self-device. Thus, the client processing part 10d speedily obtains data on a controller 11 while traffic on the network 16 is reduced. The server processing part 10c supplies service to the various clients entering the network such as the client processing part of the panel device 12 and a client 15. Consequently, the load of an external server 14 can be reduced.</p> |
