It's All About The Data

摘要

Today, there are so many different technologies available for datarntransfer that it can be difficult to keep track of them all. Everyone talksrnabout Ethernet in industry, but the question is whether the installationrnof an Ethernet network really is the best solution for industrial processing.rnWhat functions can Ethernet perform that cannot be carriedrnout with classic communication methods?rnThe term 'Ethernet' is used to designate the transfer technology associated with an RJ45 connector in the world of office PCs. Today, every PC is equipped with an RJ45 connector, also referred to as a LAN (local area network) port. In offices generally, the Ethernet TCP/IP standard is employed for bidirectional data transfer over this hardware. In order to adapt this standard to industrial demands, additional protocols have been defined to enable the high degree of data security required as well as real-time capability. The manufacturers of the first fieldbuses have customsed their own protocols for use with the new hardware.