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<p>What I understand is that:</p> <p>Profibus and Profinet are both field networks (i.e. communicate industrial devices with each other in the site or industrial field) so they are designed to work in industrial environment taking into account factors of dust, humidity, temperature and electromagnetic noise and interference but Profinet speed is about100 Mbits per second where Profibus cannot exceed12 Mbits per second. The maximum number of devices in Profinet network may be at least256 where it is126 for Profibus.</p> <p>Profinet and Ethernet (definitely Fast Ethernet) have the same concept and wiring but profinet is industrial and more limited in length of cables (100 meter for a network).</p> <p> </p>
Profibus are replaced by profinet due to some really interesting factor.
In Profinet system, industry swap the previous proprietary field bus system in industrial automation with highly emerging and most efficient Industrial Ethernet technology in industrial automation and control system. Unlike the proprietary field bus system, the Industrial Ethernet manage data flow from office to the machine (sensors and actuators) through control unit.
Advantages of profinet our profibus are :
increased network bandwidth and provide network determinism for industrial control applications and provide the most cost effective solutions for industrial environment. By implementing this project in industry we can also attain access to the troubleshooting problems at sensor level from control room.
