| 摘要 |
In the present invention, a management number updating unit (1027) updates a management number for time management, per an established unit time. A management number storage unit (1025) stores a current management number. A management number determination unit (10231) determines, on the basis of the current management number and an allowable error in the management number update timing at a transmission destination computer, a management number to be appended to transmission data that will be transmitted to the transmission destination computer. A data transmission unit (10232) appends the management number determined by the management number determination unit (10231) to the transmission data, and transmits, as a data frame (152), the transmission data with the management number appended thereto. |
