US 2025/0165654 A1 · Method for Operating Control Software and Arrangement having a Computer System

Abstract

A method for operating control software to control a process, wherein the control software is executed within a runtime environment on a computer system and a security program is loaded into a load memory so as to run in the control software, where a checksum of the program code of the security program is stored in a network subscriber that is connected to the computer system via a communication network, where a load memory checksum is generated during startup of the control software in the runtime environment via the program code of the security program, which is stored in the load memory, where the previously stored checksum is queried by the network subscriber and compared with the load memory checksum, and where execution of the security program in the control software is terminated in the event of a discrepancy.

Claims18

Dependent claims

A method for operating control software to control a process, the control software being executed within a runtime environment on a computer system, and a security program being loaded into a load memory to execute in the control software, the method comprising:

storing a checksum of program code of the security program in a network subscriber which is connected to the computer system via a communication network;
generating a load memory checksum during a startup of the control software in the runtime environment via the program code of the security program, which is stored in the load memory;
querying the previously stored checksum by the network subscriber and comparing the previously stored checksum with the load memory checksum;
and
terminating execution of the security program in the control software in an event of a discrepancy between the previously stored checksum and the load memory checksum.

2 more elements

An arrangement comprising:

a computer system comprising a runtime environment which is configured to execute run control software to control a process;
a load memory stores a security program for execution in the control software;
a network subscriber connected to the computer system via a communication network, the network subscriber including a storage area in which a checksum of the program code of the security program is stored;
and
a program identifier which is configured to generate a load memory checksum during a startup of the control software via the program code of the security program, which is stored in the load memory, and to query the checksum which is previously stored in the network subscriber and to compare the checksum with the load memory checksum, and furthermore configured to output an error signal which terminates the security program from being executed in the control software in an event of a discrepancy between the checksum with the load memory checksum.

2 more elements

Dependencies are inferred from the claim text.

Method for Operating Control Software and Arrangement having a Computer System

Life of this patent

Method for Operating Control Software and Arrangement having a Computer System

Life of this patent

Abstract

Claims18