Implementing IO-Link Safety – with TEConcept from Concept to Certification
Are you planning a new IO-Link Functional Safety development – or want to extend an existing product with Functional Safety?
IO-Link Safety Device and Master Stack
Similar to the IO-Link Device Stack and IO-Link Master Stack software stacks, TEConcept is working on the final completion of the software for the functional safety implementation. The Safety Master Stack is already pre-certified and in the final stages of certification, and the Safety Device Stack is also expected to be ready for use in the near future.
IO-Link Safety Master Stack
An extension of the Master Stack adding IO-Link Safety support – enabling standards-compliant, safety-oriented communication in automation applications.
IO-Link Safety Device Stack (in progress)
Will enable IO-Link Safety integration in sensors and actuators. Contact us for more information on the planned release date.
IO-Link Safety Diagnostic and Test Tools
For the safety protocol test, TEConcept already has the right tool at hand with the Safety Master Tester, to reliably test and validate safety masters.
IO-Link Safety Master Tester
The IO-Link Safety Master Tester automatically checks whether your IO-Link Safety Master meets the required specifications and generates a PDF report for certification.
Still have questions about IO-Link Functional Safety?
Do you need further information or specific adaptations? Contact our team of experts – we are happy to provide individual support.
Why should you work with us on Functional Safety?
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FAQ on IO-Link Safety
What is IO-Link Safety, and which safety levels are supported?
IO-Link Safety extends IO-Link with a safety communication layer (SCL) on both the master and device side. It can be used up to SIL 3. The concept has been reviewed by TÜV SÜD.
Why do I need IO-Link Functional Safety – isn't OSSDe enough?
OSSDe does not support bidirectional communication or parameterization. Without IO-Link Functional Safety, a manufacturer would need to implement several FSCP protocols (PROFIsafe, CIP Safety, etc.). With Safety, a single device type suffices for all FSCP platforms.
What does "black channel" mean, and how is communication secured?
IO-Link is used as a transmission channel without needing to be assessed against IEC 61508 itself. Safety is provided by the protocol itself: counter/inverted counter, watchdog with acknowledgment, authentication at protocol startup, and CRC signature (CRC-16 or CRC-32).
How does parameterization and commissioning work?
Protocol parameters (FSP_) are set via the FS Master Tool and the IODD. Device-specific safety parameters (FST_) are transmitted by a supplied dedicated tool, which calculates a CRC signature across all technology parameters. The FS device checks this signature at every startup.
What advantages does IO-Link Safety offer device manufacturers?
A single device type covers both FS-DI operation (OSSDe) and FS master operation (IO-Link Safety) – without variants, without license fees. This includes bidirectional data transmission, integrated diagnostics for condition monitoring and predictive maintenance, as well as a clear foundation for Industry 4.0 / IIoT.
Is there a separate specification document for IO-Link Functional Safety?
Yes. The specification can be found on the IO-Link Community website in the download area under the name IO-Link Safety Systems Extension.
Contact
- +49 761 21443640
- +49 761 21443636
- info@teconcept.de
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