The Description of PROFIBUS Protocol
PROFIBUS stands for Process Field Bus. It is a standard for wiring networks for manufacturing automation. The term "bus" refers to a bundle of wires operating together and collected together by a plug. The plug will have several pins, each accessing a separate wire.
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History
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The technology was developed by a group of German companies and public institutions who formed the Central Association for the Electrical Industry, or ZVEI. Its development was funded by the German Department of Education and Research, Bundesministerium für Bildung und Forschung (BMBF). The development project began in 1987. It defined three distinct standards.
Protocols
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The PROFIBUS proitocols fall into three categories. PROFIBUS FMS is a Fieldbus Message Specification detailing the communication messages for use with PROFIBUS. PROFIBUS DP communicates between a centralized controller and sensors and actuators on the factory shop floor. DP stands for Decentralized Peripherals. This is the most common PROFIBUS standard in use today. PROFIBUS PA (Process Automation) monitors measuring equipment. It is designed for use in hazardous areas where flammable or explosive materials are involved.
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Management
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PROFIBUS User Organization (PNO) is a nonprofit group created in 1989 to advance and promote PROFIBUS. PROFIBUS International (PI) was formed in 1995 sets standards and coordinates with the ZVEI on extending the definition of PROFIBUS protocols.
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References
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