| 摘要 |
<p>In order to enable a PLC to determine whether device data transferred to an FTP server is device data for which the transfer has been completed, and to improve the degree of freedom with respect to the setting of a transfer completion notification code, this PLC is equipped with a logging unit that logs device data and outputs to a memory card a log file describing the logging result for the device data, and a file transfer unit that transfers to an FTP server the log file that has been output to a memory card. After the transfer of all of the data constituting a log file has been completed (step S15, Yes), the file transfer unit inserts, into the log file transferred to the FTP server and stored in the FTP server, a transfer completion notification code which is specified by means of a logging setting parameter (40) that has been preset by a user (step S17).</p> |
