公开(公告)号：US20190180022A1

公开(公告)日：2019-06-13

申请号：US16202656

申请日：2018-11-28

Applicant: SICK AG

Inventor： Harald FECHER ,  Jörg MODDEMANN ,  Martin WEHRLE

IPC: G06F21/44

CPC classification number: G06F21/44 ,  G05B19/042

Abstract: To ensure a simple and secure verification of a device, in particular of a safety controller, a method of verifying a configuration of a device, in particular of a safety controller, is provided, said method comprising the steps of subdividing the configuration of the device into at least two part configurations that are validated, of allocating the part configurations to at least one part configuration sequence in which a dependence on a verification of the part configurations on one another is predefined, of determining parameters of each part configuration, with the parameters being used for verifying the respective part configurations, of calculating a single checksum that reproduces the verification of the part configurations, with the single checksum of a preceding part configuration being recalculated in the verification of a part configuration following in the part configuration sequence and with the verification of the preceding part configuration being confirmed on an agreement of the single checksum, and with the configuration of the device being verified when the last part configuration has been verified for each part configuration sequence.