Patent · US Active

Method for operating a field device of automation technology and an operating unit for carrying out the method

US10938804B2 · kind B2 · utility

0Cited by

2References

22Claims

0Family size

Assignee

Endress+Hauser Conducta GmbH+Co. KG · DE

Inventors

Björn Haase · Stuttgart, DE
Ralf Schmidt · Nuremberg, DE
Markus Kilian · Merzhausen, DE
Helmut Kalteis · Marktoberdorf, DE

Key dates

Filing date	Mar 28, 2018
Grant date	Mar 2, 2021
Priority date	—
Expiry date	Dec 11, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH04L2209/805
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

The disclosure relates to a method for operating a field device of automation technology, comprising: establishing a wireless and/or wired communications link between the field device and an operating unit; establishing a communications link between an authentication card and the field device, using the operating unit, wherein at least the field device and the authentication card contain symmetric or asymmetric key information; and carrying out an at least unilateral authentication of the authentication card on the field device, as well as an operating unit for carrying out the method according to the invention.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.