Contribution to Safety Extension of IO-Link Wireless
Publication date
2023-09-04
Document type
Research article
Author
Organisational unit
ISSN
Series or journal
atp magazin
Periodical volume
2023
Periodical issue
9
First page
80
Last page
88
Peer-reviewed
✅
Part of the university bibliography
✅
Keyword
IO-Link wireless
Functional safety
Residual error probability
Abstract
This paper descibes an enhancement of IO-Link Wireless with an additional safety and security communication layer employing the black channel principle to fulfill safety requirements with respect to IEC 61784-3:2021. An extended channel model based on uniformly distributed segments (UDS) superimposed with the binary symmetric channel (BSC) is applied to simplify the residual error probability (REP) calculation, to detect additional error patterns, and to consider BSC-preserving cryptographic algorithms. Also, the REP with respect to the underlying security layer as well as the probability of failure per hour (PFH) are quantified.
Version
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