| 摘要 |
PURPOSE:To make it possible that a node acquires the communication right in a short time, by setting the frequency of an adjacent node search processing to a high value in the initial state from the power-on time of the node to the elapse of a certain time and setting this frequency to a low value in the steady operation state after the elapse of the certain time. CONSTITUTION:When the power source of a node 12 is turned on, an adjacent node recognition flag (a), a steady operation mode flag (c), a token count (d) and an adjacent node search processing count (e) are reset in steps S21, S22, S23, and S24 respectively. A microprocessor 15 waits for reception of a communication right transfer instruction through a network transmission line 11 while performing the normal processing in a step S25. In this case the frequency of the adjacent node search processing can be set to a high value during the period from the power-on time of the node to the elapse of a certain time and can be set to a low value after the elapse of the cartain time. |
