PROFIBUS or PROcess FieldBUS is a popular industrial control network designed for motion control, safety networks, factory automation, and process control. It uses specialized Profiles to support different areas of automation using a master/slave design.
PROFIBUS was introduced in 1993 and operates at layers 1, 2, and 7 of the OSI model. It supports different physical layers such as fibre, MBP, RS-485, or RS-485-IS. Layers 2 also perform some of the activities of layers 3, 4, and 5.
PROFIBUS works on a bus topology, where all the nodes are connected to a single line. A master device controls the communication and commands the slave devices to perform different tasks. It uses cyclic communication to exchange data.
PROFInet is an Ethernet-based variant of PROFIBUS designed to communicate with the IT division. The PROFIBUS Trade Organization in the United States is located in Scottsdale, Arizona, and is managed by PROFIBUS International (PI), Karlsruhe, Germany.
FAQs
What is a PROFIBUS network?
PROFIBUS is an industrial control network used for motion control, safety networks, factory automation, and process control. It operates at layers 1, 2, and 7 of the OSI model and supports different physical layers such as fibre, MBP, RS-485, or RS-485-IS. A master device controls the communication and commands the slave devices to perform different tasks using specialized Profiles.
What is the difference between PROFIBUS and PROFINET?
PROFIBUS is a traditional industrial control network that operates on a bus topology, where all the nodes are connected to a single line. A master device controls the communication and commands the slave devices to perform different tasks using specialized Profiles. Whereas, PROFINET is an Ethernet-based variant of PROFIBUS designed to communicate with the IT division and supports higher bandwidth applications.
Final Thoughts
PROFIBUS is a reliable and widely used industrial control network that supports different physical layers and specialized Profiles for motion control, safety networks, factory automation, and process control. With its cyclic communication and master/slave design, it ensures efficient communication and data exchange between devices.
