The first generation -- SERCOS I -- operated at 2 and 4 Mbit/sec, using the SERCON410B ASIC and fiber optic transmitters/receivers and cabling. The SERCON410B is no longer produced.
	The second (current) generation -- SERCOS II -- operates at 2/4/8/16 Mbit/sec, using the SERCON816 ASIC and fiber optics. The SERCON816 is downward compatible with the SERCON410B.
	The new third generation -- SERCOS-III -- operates at up to 100 Mbit/sec utilizing a Field Programmable Gate Array (FPGA) or a General Purpose Communication Controller (GPCC) and is based on standard Industrial Ethernet hardware. SERCOS-III maintains backward compatibility with previous versions in regard to profiles, synchronization, message structures and the standardized parameter set that describes all aspects of real-time motion and I/O control.

More than 50 control manufacturers and 30 drive manufacturers worldwide offer first and second generation SERCOS interface products, with hundreds of thousands of systems installed. Several manufacturers offer SERCOS interface I/O stations plus hardware and software development tools.