| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a technology by which a field apparatus such as an actuator can surely execute an expected processing on the basis of measurement data transmitted from a field apparatus such as a measuring instrument in a field network system. <P>SOLUTION: A first field apparatus such as the measuring instrument includes: a transmission buffer which stores data to be transmitted to a second field apparatus such as the actuator; and an inquiry processing part which retransmits the data stored in the transmission buffer to a data retransmission request from the second field apparatus. The second field apparatus includes: a reception buffer which stores the data transmitted from the first field apparatus; and a confirmation part which determines whether or not the data stored in the reception buffer is regular data, and requests retransmission of the data to the first field apparatus when the data is not the regular data, wherein the second field apparatus performs predetermined processing based on the data which is determined as the regular data in the confirmation part. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
