The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 21, 2021
Filed:
Nov. 14, 2019
Fisher-rosemount Systems, Inc., Round Rock, TX (US);
Sergio Diaz, Pflugerville, TX (US);
Gary K. Law, Georgetown, TX (US);
Godfrey Sherriff, Round Rock, TX (US);
Fisher-Rosemount Systems, Inc., Round Rock, TX (US);
Abstract
Apparatus and methods for secure data logging are disclosed. An example method for secure data transfer from a process control system network includes storing information received by a process controller via the process control system network, the process controller including a safety instrumented system controller or a process control system controller, the information transferred uni-directionally from the process control system network to a data logger via a data diode, identifying a trigger event on the process control system network, in response to identifying the trigger event, parsing the stored information for event data, and transferring the event data from the data logger to a data extractor.