| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a logging system logging data at every control cycle regardless of length of the control cycle without giving loads to a controller during the logging processing by a logging device which is a logging system for logging data of the controller that uses a hardware of performance equivalent to the controller or lower. <P>SOLUTION: The system comprises: the controller for holding data related to control by performing prescribed control; a storage device which is connected to the controller accessibly and holds the control data time sequentially which are held in the controller; and a logging device which is connected to the storage device accessibly for logging the data stored in the storage device. Push-type logging is performed to the logging device by the controller via the storage device. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
