Implement IO-Link Safety with TEConcept – from concept to certification
IO-Link Safety extends the IO-Link protocol with safety-related communication up to SIL 3 – using IO-Link itself as a so-called Black Channel. Safety-relevant and standard data run over the same channel, without additional wiring. Standardized as IEC 61139-2, IO-Link Safety is recognized worldwide and is particularly attractive for device manufacturers: a single protocol covers conventional and safety-related applications. TEConcept supports you on this path – with specialized development tools, test systems for IO-Link Safety devices and masters, and practical consulting from initial concept through to certification.
Are you planning a new IO-Link functional safety development – or would you like to add functional safety to an existing product?
IO-Link Safety Device and Master Stack
In line with the IO-Link Device Stack and IO-Link Master Stack software stacks, TEConcept is working on finalizing the software for the functional safety implementation. The Safety Master Stack is already pre-certified and in the final steps toward full certification, and the Safety Device Stack is also expected to be ready for use in the near future.
IO-Link Safety Master Stack
Extension of the Master Stack with IO-Link Safety – for standards-compliant, safety-related communication in automation applications.
IO-Link Safety Device Stack (in progress)
Will enable IO-Link Safety integration in sensors and actuators in the future. Contact us for more information about the planned release.
IO-Link Safety diagnostic and test tools
For safety protocol testing, TEConcept already offers the right tool 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 requirements and generates a PDF report for certification.
Any questions about IO-Link functional safety?
Do you need more information or specific adaptations? Contact our team of experts – we will be happy to support you with a tailored approach.
Why you should 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 the master and device side. It can be used up to SIL 3. The concept was reviewed by TÜV SÜD.
Why do I need IO-Link functional safety – isn’t OSSDe sufficient?
OSSD does not support bidirectional communication or parameterization. Without IO-Link functional safety, a manufacturer would have to implement multiple FSCP protocols (PROFIsafe, CIP Safety, etc.). With Safety, a single device type is sufficient for all FSCP platforms.
What does “Black Channel" mean and how is communication safeguarded?
IO-Link is used as the transmission channel without having to be assessed to IEC 61508 itself. The safety is provided by the protocol: counter/inverted counter, watchdog with acknowledgment, authentication at protocol start, and CRC signature (CRC-16 or CRC-32).
How do parameterization and commissioning work?
Protocol parameters (FSP_) are set via the FS master tool and the IODD. A supplied dedicated tool transfers device-specific safety parameters (FST_) and 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?
One device type covers FS-DI operation (OSSDe) and FS master operation (IO-Link Safety) – without variants, without license fees. In addition, bidirectional data transmission, integrated diagnostics for condition monitoring and predictive maintenance, and 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 Extensions.
Contact
- +49 761 21443640
- +49 761 21443636
- info@teconcept.de
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