Understanding PROFIBUS: A Legacy Protocol PROFIBUS, established in 1993, is a widely used industrial communication protocol with over 50 million devices installed by the end of 2017. It utilizes a DB9 serial connector and purple outer jacket cables for connections. Each device on the PROFIBUS network must have a unique address from 1 to 127, configured via software or dip switches. Operating speeds range from 9,600 bits per second to12 megabits per second with cable lengths up to1000 meters.
Exploring Profinet: The Modern Solution Profinet is an Ethernet-based communications protocol characterized by its green cables and standard RJ45 connectors. It operates at high speeds of up to100 megabits per second with response times under one millisecond making it suitable for fast applications; official Profinet cables are recommended due to their robust shielding for harsh environments. Devices use IP addresses and MAC addresses along with unique device names specific to Profinet networks which enhances flexibility compared to traditional protocols like PROFIBUS.