| 摘要 |
<p>PROBLEM TO BE SOLVED: To change a transfer amount of communication data to be transferred to an external device depending on a receiving speed of the communication data. SOLUTION: In the case that a power supply of a PC is active (S22: ON) and a communication software of the PC is under execution (S23: YES), a receiving speed of communication data sent continuously from an opposite device is written in a receiving speed counter (S24). The transfer amount of communication data transferred at once, that is, a size of one packet data is changed based on a count stored in the receiving speed counter. Then in the case that the receiving speed of the communication data differs, the transfer interval is made constant and occurrence of time expiration error due to the communication software of the PC is prevented.</p> |
