Overview Industrial Ethernet in the communications landscape Benefits Ethernet presently has a market share of over 80 % with a rising trend, thus placing it in the pole position in the LAN landscape worldwide. Ethernet offers important characteristics that can give you significant advantages for your application: Industrial Ethernet serves as the basis for use of Component based Automation which is based on the PROFINET standard of PROFINET International (PNO). Application SIMATIC NET relies on this proven technology. Siemens has established well over two million connections worldwide in tough industrial environments subject to electromagnetic interference. With the aid of switching technology, ranges are almost unlimited. In addition, Industrial Ethernet offers the option of wireless communication that can be seamlessly integrated into the network structure. This means that information is available anywhere at any time and mobile access is made possible through Industrial Wireless LAN to the Intranet/Internet . Industrial Ethernet uses data communication to exchange data between programmable controllers or between a programmable controller and intelligent partners (e.g. PCs). Industrial Ethernet enables high-performance communication networks to be created in extensive linear, ring or star configurations. Technical specifications Industrial Ethernet Standard Ethernet according to IEEE 802.3, 802.3u and 802.11a/b/g/h Transmission rate 10/100 Mbit/s Number of stations unlimited Network size Switched network at 100 Mbit/s unlimited (above 150 km, take into account signal propagation time ) Transmission medium Electrical network Industrial Twisted Pair and Twisted Pair cable Optical network Fiber-optic cable (glass) Wireless network Surrounding space Topology Line, tree, redundant ring, star Protocols Protocol-independent