Title:
プロセス制御システムにおける遅延公開
Document Type and Number:
Japanese Patent JP6567825
Kind Code:
B2
Abstract:
Techniques for delaying the publication of data to a network by a device in a process control system or plant include obtaining, at the device, data to be published to the network; storing the obtained data and a corresponding timestamp in a cache; triggering a publication of cached data; and, based on the trigger, publishing the oldest cached data to the network during the publishing timeslot assigned to the device. The cached data may correspond to a sample rate of the device and may include multiple instances of data obtained over time. The device includes a network interface, a cache, and a publisher, and the device may be configured to operate in the delayed publishing mode, or to operate in an immediate publishing mode in which currently obtained data that has not been cached is published to the network during the publishing time slot assigned to the device.
Inventors:
Panther, Mitchell, Es.
Application Number:
JP2014537353A
Publication Date:
August 28, 2019
Filing Date:
October 22, 2012
Export Citation:
Assignee:
Fisher Controls International Limited Liability Company
International Classes:
G05B23/02
Domestic Patent References:
| JP2006325138A | ||||
| JP2011118920A | ||||
| JP2009111976A | ||||
| JP2001502085A | ||||
| JP2009539059A | ||||
| JP2005130041A | ||||
| JP11205332A |
Foreign References:
| US6424872 |
Attorney, Agent or Firm:
Nobuyuki Okajima