| 摘要 |
A communication apparatus (a slave) that performs time synchronization with a master apparatus on the basis of a time synchronization message transmitted from the master apparatus (a master) at a fixed cycle. The communication apparatus (the slave) includes a CPU that stores, in a transmission request message for requesting transmission of the time synchronization message, a requesting transmission rate, and transmits the transmission request message to the communication apparatus (the master). The CPU calculates time synchronization accuracy, which is a difference between time of the master apparatus and time of its own apparatus, on the basis of the time synchronization message; determines on the basis of the time synchronization accuracy whether the requesting transmission rate is changed; and, transmits, if it is determined that the requesting transmission rate is changed, the transmission request message, in which the changed requesting transmission rate is stored, to the communication apparatus (the master). |
