What is Profibus?
Profibus (Process Field Bus) is the world’s most widely used fieldbus and is supported by more than 1400 equipment vendors globally. Profibus 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. Not to be confused with the Profinet, Profibus is neither an openly published, nor a royalty-free protocol.
Murrelektonik explain just what a Profibus is and also how Profibus’s work and perform.
Profibus consists of numerous variations which have been designed for use in special applications. The two most commonly used versions of Profibus are Profibus-DP (Distributed Peripherals) and Profibus-PA (Process Automation).