Patent ID: 11863533
Assignee: SIEMENS AKTIENGESELLSCHAFT
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 9:
10. An arrangement comprising:
a first communication subscriber and a second communication subscriber which interchange data via a communication system, the first communication subscriber including a first data consumer having a first address identifier and a first data provider having a second address identifier, the second communication subscriber including a second data provider having a third address identifier and a second data consumer;
circuitries which set up a first unidirectional connection between the first data consumer and the second data provider and a second unidirectional connection between the first data provider and the second data consumer;
wherein the first communication subscriber ascertains the third address identifier;
wherein the first communication subscriber includes one or more circuitries, the one or more circuitries applies a computation rule to a unique value, to produce an identifier;
subsequently, the one or more circuitries forwards the identifier to the first data consumer;
transmits, by the first data consumer, the unique value to the second data provider in a first request message;
responds, by the second data provider, a first response message to the first request message, the first response message containing first safety-oriented data and the third address identifier, the first safety-oriented data being interchanged via (i) safety-oriented communication and (ii) address relationships comprising destination addresses and source addresses, and the destination addresses and source addresses being affirmatively are firmly planned for the safety-oriented communication;
wherein the one or more circuitries further determines whether the first response message contains the third address identifier, in response to a positive determination, the first safety-oriented data is declared to be valid, otherwise rejecting the first safety-oriented data in response to a negative determination;
wherein the second communication subscriber includes circuitry, the circuitry utilizes the computation rule to recover the identifier from the unique value and transfers said identifier to the second data consumer; and
wherein the first data provider and the second data consumer utilize the identifier which is currently known to the first data provider and the second data consumer on both sides to functionally protect the second unidirectional connection between the first data provider and the second data consumer.