US 11,734,201 B2
Control system
Kazutaka Onishi, Tokyo (JP); Yusaku Otsuka, Tokyo (JP); and Tatsuya Maruyama, Tokyo (JP)
Assigned to HITACHI, LTD., Tokyo (JP)
Appl. No. 17/794,248
Filed by HITACHI, LTD., Tokyo (JP)
PCT Filed Oct. 9, 2020, PCT No. PCT/JP2020/038321
§ 371(c)(1), (2) Date Jul. 20, 2022,
PCT Pub. No. WO2021/157134, PCT Pub. Date Aug. 12, 2021.
Claims priority of application No. 2020-017325 (JP), filed on Feb. 4, 2020.
Prior Publication US 2023/0098444 A1, Mar. 30, 2023
Int. Cl. G06F 13/10 (2006.01)
CPC G06F 13/102 (2013.01) 12 Claims
OG exemplary drawing
 
1. A control system comprising:
at least one control node; and
at least one I/O node that is connected to one or more control target devices and is communicable with the control node via a network,
wherein the control node includes a first operating system and a first processor that executes at least one control program on the first operating system,
the I/O node includes a second operating system having higher punctuality than the first operating system, and a second processor that executes at least one I/O program on the second operating system, and
the control program of the control node includes a determination execution unit that generates a control command based on state control set in advance for the control target device and transmits the control command to the I/O node, and
the I/O program of the I/O node includes a control command execution unit that stores the control command received from the control node in a storage unit and executes processing related to the control target device according to the control command stored in the storage unit.