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US 2022/0166636 A1Published application
Control device and control system
AssigneeOMRON Corporation
InventorKo KAWAI
Life of this patent
Estimating the term…
Abstract
A control device includes a controller that executes a control arithmetic calculation controlling a control target; a communication device that executes processing for secure communication using a certificate; a detector that detects that an end of the certificate approaches; and a notification device that notifies that the end of the certificate approaches.
Claims19
A control device comprising:
- a controller configured to execute a control arithmetic calculation controlling a control target;
- a communication unit configured to execute processing for secure communication using a certificate;
- a detection unit configured to detect that an end of the certificate approaches;
- and
- a notification unit configured to notify that the end of the certificate approaches.
2 more elements
A control system comprising:
- a control device comprising
- a controller configured to execute a control arithmetic calculation controlling a control target,
- a communication unit configured to execute processing for secure communication using a certificate,
- a detection unit configured to detect that an end of the certificate approaches, and
- a notification unit configured to notify that the end of the certificate approaches;
- and
- a setting device configured to set notification timing before the certificate reaches the end of the certificate to the control device.
4 more elements
A control system comprising:
- a control device comprising
- a controller configured to execute a control arithmetic calculation controlling a control target,
- a communication unit configured to execute processing for secure communication using a certificate,
- a detection unit configured to detect that an end of the certificate approaches, and
- a notification unit configured to notify that the end of the certificate approaches;
- and
- a communication device configured to conduct communication with the control device,
- wherein the control device accepts a new certificate before the an expiry date, transmits an update request to the communication device, and updates the certificate by discarding an old certificate when the communication device approves the new certificate.
5 more elements
Dependencies are inferred from the claim text.