BiSS Safety follows the industrial trend of a fully digital communication and functional safety capabilities. Safety critical applications targeting up to SIL3 are covered by the BiSS Safety profile definition of the BiSS C Interface. BiSS Safety uses the BiSS protocol-specific features of the BiSS bus structure and the cyclic redundancy check (CRC ) for a safe "Black Channel" transmission.The BiSS Safety system can be implemented in different ways, e.g.: at the encoder side two independent position words are generated by one or two sensors (BiSS slaves). The drive (BiSS master) can either be a safety drive with the whole safety functionality integrated or a standard drive with an additional BiSS safety monitor which supervises the BiSS communication.The profile definition "BiSS Safety" is certified by TÜV Rheinland. It follows in extracts the requirements stated in DIN EN 61784-3:2011 and is suitable for safety applications up to SIL3 according to IEC61508:2010.