Profibus | |
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Governing body | PROFIBUS&PROFINET International (PI) |
Protocol information | |
Type of network | Device Bus, Process Control |
Physical media | Twisted pair, fiber |
Network topology | Bus |
Device addressing | DIP switch or hardware/software |
Profibus (usually styled as PROFIBUS, as a portmanteau for 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.[1] It should not be confused with the Profinet standard for Industrial Ethernet. Profibus is openly published as type 3 of IEC 61158/61784-1.[2]