Profibus

Profibus
Governing bodyPROFIBUS&PROFINET International (PI)
Protocol information
Type of networkDevice bus, industrial process control
Physical mediaTwisted pair, fiber
Network topologyBus
Device addressingDIP 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. It should not be confused with the Profinet standard for Industrial Ethernet. Profibus is openly published as type 3 of IEC 61158/61784-1.

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