| 摘要 |
A communication adapter (3) acquires, upon receiving a screen acquisition request from a terminal device (2) via a network (5), screen data of a requested screen, and transmits the acquired screen data to the terminal device (2). At this time, the communication adapter (3) refers to screen transition data, and specifies a next screen to which the requested screen can transition next. The communication adapter (3) then acquires screen data of the specified next screen from an air-conditioning controller (4) via a serial cable (6), and preserves the acquired data. |
