| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a process system enabling time data to be selected according to a request of a user for each controller from a plurality of time data for time synchronization. <P>SOLUTION: The process system connected with a plurality of controllers via a network comprises a first device that is connected with the network and transmits the time data to at least one of the plurality of controllers via this network, a second device that is connected via a system other than the network and transmits the time data to at least one of the plurality of controllers. At least one of the plurality of controllers selects one of the time data of the first device and the time data of the second device. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
