Industrial Ethernet (IE) is the use of Ethernet in an industrial environment with protocols that provide determinism and real-time control.[1] Protocols for industrial Ethernet include EtherCAT, EtherNet/IP, PROFINET, POWERLINK, SERCOS III, CC-Link IE, and Modbus TCP.[1][2] Many industrial Ethernet protocols use a modified media access control (MAC) layer to provide low latency and determinism.[1] Some microprocessors provide industrial Ethernet support.
Industrial Ethernet can also refer to the use of standard Ethernet protocols with rugged connectors and extended temperature switches in an industrial environment, for automation or process control. Components used in plant process areas must be designed to work in harsh environments of temperature extremes, humidity, and vibration that exceed the ranges for information technology equipment intended for installation in controlled environments. The use of fiber-optic Ethernet variants reduces the problems of electrical noise and provides electrical isolation.
Some industrial networks emphasized deterministic delivery of transmitted data, whereas Ethernet used collision detection which made transport time for individual data packets difficult to estimate with increasing network traffic. Typically, industrial uses of Ethernet employ full-duplex standards and other methods so that collisions do not unacceptably influence transmission times.
- ^ a b c Lin, Zihong (2018). An inside look at industrial Ethernet communication protocols (Rev. B) (PDF). Texas Instruments.
- ^ Zurawski, Richard (2014). Industrial Communication Technology Handbook (Second ed.). CRC Press. ISBN 978-1482207323.