Method for preventing impermissible access to software applications in field devices
US11481516B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 19, 2017 |
| Grant date | Oct 25, 2022 |
| Priority date | — |
| Expiry date | Feb 6, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/168
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The invention includes a method and a communication network for preventing impermissible access to software applications implemented in field devices, wherein the field devices are integrated in a communication network of automation technology and wherein each software application exchanges information within the communication network via at least one communication interface. The method includes registering currently activated safety functions of each of the communication interfaces; registering all activatable safety functions of each communication interface; ascertaining at least one shared safety function, which is activatable in each of the communication interfaces; displaying the shared safety functions and selecting at least one displayed, shared safety function; and reconfiguring each of the communication interfaces, wherein currently set safety functions are replaced by the at least one selected, shared safety function, and when no shared safety function was ascertained, each of the communication interfaces is so reconfigured that no safety function is activated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.