US 12,248,362 B2
Method for recording a number of events in an encoded tracer variable in a security-oriented computer program
Karl-Hermann Witte, Fürth (DE)
Assigned to Siemens Aktiengesellschaft, Munich (DE)
Appl. No. 18/028,846
Filed by Siemens Aktiengesellschaft, Munich (DE)
PCT Filed Sep. 3, 2021, PCT No. PCT/EP2021/074359
§ 371(c)(1), (2) Date Mar. 28, 2023,
PCT Pub. No. WO2022/069154, PCT Pub. Date Apr. 7, 2022.
Claims priority of application No. 20199047 (EP), filed on Sep. 29, 2020.
Prior Publication US 2024/0028440 A1, Jan. 25, 2024
Int. Cl. G06F 11/07 (2006.01); G06F 11/28 (2006.01)
CPC G06F 11/0775 (2013.01) [G06F 11/28 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method for logging a plurality of events in a coded tracer variable in a security-oriented computer program executing on at least one industrial automation component of an industrial automation system, each event being logged as a respective value in the coded tracer variable, the method comprising:
calculating a total value for simultaneous logging of the plurality of events from respective values for the plurality of events;
logging the calculated value in the coded tracer variable; and
switching the at least one industrial automation component of the industrial automation system into a safe state based on the calculated value logged in the coded tracer variable.