Title:
CONTROL SYSTEM, DEVICE, AND CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2020/189144
Kind Code:
A1
Abstract:
Provided are a control system, a device, and a method that make it possible to perform efficient communication. A plurality of devices that are mutually time-synchronized are connected to a network. A frame that is periodically exchanged by the plurality of devices is transferred on the network, the plurality of devices include one or more control devices and devices controlled by the control device, each of the plurality of devices connects to a first device that transmits the frame arrived at the device itself and a second device that receives the frame transmitted from the device itself through the network, and when the frame does not arrive at a prescribed time through a transfer path, if a condition related to the period is satisfied, at least one of the plurality of devices transmits a retransmission request through the transfer path.
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Inventors:
YONEDA MITSUHIRO (JP)
SAKATANI NOBUYUKI (JP)
AKAI RYOTA (JP)
NIIMI TAIGA (JP)
SAWADA SHIGENORI (JP)
SAKATANI NOBUYUKI (JP)
AKAI RYOTA (JP)
NIIMI TAIGA (JP)
SAWADA SHIGENORI (JP)
Application Number:
PCT/JP2020/006262
Publication Date:
September 24, 2020
Filing Date:
February 18, 2020
Export Citation:
Assignee:
OMRON TATEISI ELECTRONICS CO (JP)
International Classes:
H04L12/28; G05B19/05; H04L12/44
Foreign References:
| JP2006080847A | 2006-03-23 | |||
| JP2010124492A | 2010-06-03 | |||
| JP2011192068A | 2011-09-29 |
Other References:
See also references of EP 3940998A4
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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