Method for secure data transmission in an automation system encompassing several networked computer units, computer program and automation system

摘要

The method involves assigning an identifier to a request, and providing services of an automation system within a service-oriented architecture. A signal (11) comprising a request and the identifier is transmitted from a computing unit (1) to another computing unit (2), where the computing units are sensors or robots. The request and the identifier are stored in a database (21) assigned to the latter computing unit during reception of the signal. Status information is retrieved based on the identifier, and is provided for requesting the service provided at the latter computing unit. Independent claims are also included for the following: (1) a computer program for secure transmission of data that is loaded in a main memory of a computer (2) an automation system comprising several networked computer units.