IO-Link Safety Brings Functional Safety to IO-Link Communication
The first components have already been certified by TÜV Süd. At SPS 2026, the IO-Link Community will showcase five devices in a safety application featuring safety door monitoring.
IO-Link Safety is an extension of the IO-Link standard designed for functional safety applications. The technology enables secure communication between sensors, actuators, and the higher-level safety controller.
This means, for example, that emergency stop devices, light curtains, and safety doors can be integrated into machines and systems via IO-Link Safety. The technology incorporates well-known features of IO-Link, including integration via device description files (IODD) and simplified device replacement.
With the first devices certified by TÜV Süd, an important prerequisite for practical use has now been established. At SPS 2026, the IO-Link Community will showcase an exhibit featuring certified components for the first time.
The demonstration replicates a small robotic application featuring an operator and signaling unit as well as safety door monitoring. Five devices or device types are used: a light curtain, a modular door interlock, an IO-Link Safety Master, and two different RFID switches.
By combining IO-Link and IO-Link Safety, traditional automation and safety communication can be implemented within a single integrated concept. Of particular interest to machine builders is that safety components can be more easily integrated, configured, and replaced when service is required.
The application will be on display at SPS 2026 in Nuremberg in Hall 5, Booth 210.
