| 摘要 |
PROBLEM TO BE SOLVED: To correct a time error by accurately discriminating Whether or not a time change is properly made. SOLUTION: A slave station transmits a response to a host station when the slave station makes a time change and the host station discriminates whether or not the time change of the slave station is properly made. In addition, the host station discriminates the error between the responding time T1+α from the slave station and the clock Ta of the host station and eliminates the time error by correcting the time of an execution command when performing the next time change in accordance with the error. When the error exceeds the tolerance, moreover, the host station corrects the error by changing the time to time T2 without waiting for the next time change. |
