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US 11,082,197 B2Granted
Control system and control device
AssigneeOMRON Corporation
InventorMitsuhiro Yoneda
Life of this patent
Estimating the term…
Abstract
Each of a plurality of control devices includes: an upper communication part which transmits/receives first data to/from other control devices via a first network; and a lower communication part which transmits/receives second data to/from one or more equipment via a second network. The upper communication part has a first timer time-synchronized with each other among the plurality of control devices. The lower communication part determines, based on the time of the first timer, a timing to start processing for transmitting the second data to the one or more equipment.
Claims13
A control system, comprising:
- a plurality of control devices connected to a first network, and
- each of the plurality of control devices is connected to one or more equipment via a second network lower than the first network;
- wherein each of the plurality of control devices comprises:
- an upper communication part which transmits/receives first data to/from other control devices via the first network, and
- a lower communication part which transmits/receives second data to/from the one or more equipment via the second network;
- the upper communication part has a first timer time-synchronized with each other among the plurality of control devices, and
- the lower communication part determines, based on the time of the first timer, a timing to start processing for transmitting the second data to the one or more equipment,
- wherein the upper communication part determines a timing to start processing for transmitting the first data, based on a maximum value of the time required for transmission/reception of the second data by the lower communication part in each of the plurality of control devices with reference to the timing to start processing for transmitting the second data.
5 more elements
A control device connected to a first network and connected to one or more equipment via a second network lower than the first network, comprising:
- an upper communication part which transmits/receives first data to/from other control devices via the first network, and
- a lower communication part which transmits/receives second data to/from the one or more equipment via the second network;
- wherein the upper communication part has a first timer time-synchronized with the other control devices, and
- the lower communication part determines, based on the time of the first timer, a timing to start processing for transmitting the second data to the one or more equipment,
- wherein the upper communication part determines a timing to start processing for transmitting the first data, based on a maximum value of the time required for transmission/reception of the second data by the lower communication part in each of the plurality of control devices with reference to the timing to start processing for transmitting the second data.
2 more elements
A control system, comprising:
- a plurality of control devices connected to a first network, and
- each of the plurality of control devices is connected to one or more equipment via a second network lower than the first network;
- wherein each of the plurality of control devices comprises:
- an upper communication part which transmits/receives first data to/from other control devices via the first network, and
- a lower communication part which transmits/receives second data to/from the one or more equipment via the second network;
- the upper communication part has a first timer time-synchronized with each other among the plurality of control devices, and
- the lower communication part determines, based on the time of the first timer, a timing to start processing for transmitting the second data to the one or more equipment,
- wherein the lower communication part has a second timer time-synchronized with the one or more equipment, and
- each of the plurality of control devices further includes a synchronization part for time-synchronization between the first timer and the second timer.
6 more elements
A control system, comprising:
- a plurality of control devices connected to a first network, and
- each of the plurality of control devices is connected to one or more equipment via a second network lower than the first network;
- wherein each of the plurality of control devices comprises:
- an upper communication part which transmits/receives first data to/from other control devices via the first network, and
- a lower communication part which transmits/receives second data to/from the one or more equipment via the second network;
- the upper communication part has a first timer time-synchronized with each other among the plurality of control devices, and
- the lower communication part determines, based on the time of the first timer, a timing to start processing for transmitting the second data to the one or more equipment,
- wherein the lower communication part updates the second data at every predetermined cycle;
- and
- the upper communication part divides the first data into data sizes corresponding to time available at every cycle, and then assigns each divided data to a plurality of cycles.
7 more elements
A control device connected to a first network and connected to one or more equipment via a second network lower than the first network, comprising:
- an upper communication part which transmits/receives first data to/from other control devices via the first network, and
- a lower communication part which transmits/receives second data to/from the one or more equipment via the second network;
- wherein the upper communication part has a first timer time-synchronized with the other control devices, and
- the lower communication part determines, based on the time of the first timer, a timing to start processing for transmitting the second data to the one or more equipment,
- wherein the lower communication part has a second timer time-synchronized with the one or more equipment, and
- each of the plurality of control devices further includes a synchronization part for time-synchronization between the first timer and the second timer.
3 more elements
A control device connected to a first network and connected to one or more equipment via a second network lower than the first network, comprising:
- an upper communication part which transmits/receives first data to/from other control devices via the first network, and
- a lower communication part which transmits/receives second data to/from the one or more equipment via the second network;
- wherein the upper communication part has a first timer time-synchronized with the other control devices, and
- the lower communication part determines, based on the time of the first timer, a timing to start processing for transmitting the second data to the one or more equipment,
- wherein the lower communication part updates the second data at every predetermined cycle;
- and
- the upper communication part divides the first data into data sizes corresponding to time available at every cycle, and then assigns each divided data to a plurality of cycles.
4 more elements
Dependencies are inferred from the claim text.