
PROFIBUS (Process Field Bus) is a standard for fieldbus communication in automation technology and was first promoted in 1989 by BMBF (German department of education and research) and then used by Siemens. It should not be confused with the PROFINET standard for Industrial Ethernet. PROFIBUS is neither an openly published nor a royalty-free protoc...
Found on
http://en.wikipedia.org/wiki/Profibus

Vendor-independent open fieldbus standard increasingly used in process control. Standardised in IEC 61158 and EN50170
Found on
http://www.contractorsunlimited.co.uk/glossary.shtml

(CONTROL SYSTEMS GLOSSARY) The German fieldbus, not to be confused with the common European fieldbus Profibus PA.
Found on
https://www.encyclo.co.uk/local/20479

German Token Ring Bus Standard Developed By Siemans.
Found on
https://www.encyclo.co.uk/local/20850
No exact match found.