Abstract: Apparatus and method for functionally securely transfer data in a two-sided data exchange of safety-related data between two communication partners (A, B), wherein a mapping is defined, which assigns to a consumer ID a provider ID of the same end point in the case of each bidirectional connection, and the mapping is made known to the two end points a priori, where the mapping could consist of the one's complement or alternatively of the two's complement, and wherein the connection between the data provider and the data consumer is established as described, the data consumer receives the address identification of the data provider via an additional side channel, for example, and after the connection has been established, the identification of the data provider can be securely checked.

Abstract: Apparatus and method for functionally securely transfer data in a two-sided data exchange of safety-related data between two communication partners (A, B), wherein a mapping is defined, which assigns to a consumer ID a provider ID of the same end point in the case of each bidirectional connection, and the mapping is made known to the two end points a priori, where the mapping could consist of the one's complement or alternatively of the two's complement, and wherein the connection between the data provider and the data consumer is established as described, the data consumer receives the address identification of the data provider via an additional side channel, for example, and after the connection has been established, the identification of the data provider can be securely checked.

Abstract: A method for functionally secure connection identification during data exchange between two communication subscribers in a communication system, wherein a first subscriber operates as a data provider with a first address identifier and a second subscriber operates as a data requester with a second address identifier, wherein in a request of safety-related data of the first subscriber in a request message, the second subscriber transmits an order number of the data request and its second address identifier and the first subscriber responds with a response message, the second subscriber subsequently checking to determine whether this message contains (i) a second address identifier of the requesting second subscriber, (ii) an order number of the request message of the second subscriber and (iii) the first address identifier of the requested first subscriber, in the event all checking steps are positive, the safety-related data being accepted and otherwise discarded.

Abstract: A method for functionally secure connection identification for data exchange via a telegram between a source data service and a sink data service, wherein whether the time stamp of an incoming telegram is older than the time stamp of a predecessor telegram is determined, upon receipt of the predecessor telegram a monitoring counter being started and whether the currently incoming telegram has arrived within a monitoring time is additionally determined, where a local time stamp of a local time basis is compared with the associated time stamp of the incoming telegram and whether a comparison difference does not exceed a period of time is determined, a telegram arriving only being accepted as valid if the time stamp of the arriving telegram is greater than the time stamp of the telegram most recently accepted as valid, and data is valid if the checks are positive, otherwise a fail-safe reaction is triggered.

Abstract: System and method for identifying data corruption in a data transfer over an error-proof communication link, wherein additional structure checksums are formed to secure a data structure during transfer of the data structure, where representatives are associated with the data types, and the structure checksum is formed via the representatives to provide identification of data corruption in a data transfer over an error-proof communication link between a first automation component and a second automation component in industrial control engineering.

Abstract: A method for functionally secure connection identification for data exchange via a telegram between a source data service and a sink data service, wherein whether the time stamp of an incoming telegram is older than the time stamp of a predecessor telegram is determined, upon receipt of the predecessor telegram a monitoring counter being started and whether the currently incoming telegram has arrived within a monitoring time is additionally determined, where a local time stamp of a local time basis is compared with the associated time stamp of the incoming telegram and whether a comparison difference does not exceed a period of time is determined, a telegram arriving only being accepted as valid if the time stamp of the arriving telegram is greater than the time stamp of the telegram most recently accepted as valid, and data is valid if the checks are positive, otherwise a fail-safe reaction is triggered.

Abstract: A method for functionally secure connection identification during data exchange between two communication subscribers in a communication system, wherein a first subscriber operates as a data provider with a first address identifier and a second subscriber operates as a data requester with a second address identifier, wherein in a request of safety-related data of the first subscriber in a request message, the second subscriber transmits an order number of the data request and its second address identifier and the first subscriber responds with a response message, the second subscriber subsequently checking to determine whether this message contains (i) a second address identifier of the requesting second subscriber, (ii) an order number of the request message of the second subscriber and (iii) the first address identifier of the requested first subscriber, in the event all checking steps are positive, the safety-related data being accepted and otherwise discarded.

Abstract: System and method for identifying data corruption in a data transfer over an error-proof communication link, wherein additional structure checksums are formed to secure a data structure during transfer of the data structure, where representatives are associated with the data types, and the structure checksum is formed via the representatives to provide identification of data corruption in a data transfer over an error-proof communication link between a first automation component and a second automation component in industrial control engineering.