And it is designed to operate at extreme temperatures and under extreme vibration and shock (and other conditions). It includes industrial-grade components, convection cooling, and relay output signalling. Industrial Ethernet equipment is designed to operate in harsh environments. The primary difference between Industrial Ethernet and traditional Ethernet is the type of hardware used. Industrial Ethernet usually requires equipment that can handle more severe environmental conditions, flexible node counts, varieties of media, very predictable real-time data traffic performance, and increased levels of segmentation as compared to traditional Ethernet networks in a corporate data network. Although Industrial Ethernet is based on the same industry standards as traditional Ethernet technology, the implementation of the two solutions is not always identical. The fieldbus data structure is applied to Layers 5, 6, and 7 of the OSI reference model over Ethernet, IP, and TCP/UDP in the transport layer (Layer 4). Most controllers (with appropriate network connections) can transfer data from one network type to the other, leveraging existing installations, yet taking advantage of Ethernet. For example, Common Industrial Protocol (CIP) has implementations based upon Ethernet and the IP protocol suite (EtherNet/IP), DeviceNet, and ControlNet (among others). Using IEEE standards-based equipment, organizations can migrate all or part of their factory operations to an Ethernet environment at the pace they wish. Speed at 10Gbps Industrial Ethernet applies the Ethernet standards developed for data communication to manufacturing control networks (Figure 3.1).
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