| 摘要 |
A control device (10) is provided for control of an apparatus (12). The device is configured for communication with the apparatus using a one-way protocol or a two-way protocol. The device is configured to communicate a message for triggering a response from the apparatus, and to continue (31, 32; 608, 610) to communicate with the apparatus using the two-way protocol upon receipt of the response within a predetermined time interval, and to continue (33, 34, 35; 602, 604) to communicate with the apparatus using the one-way protocol in the absence of the response within the time interval. |
