Escalonamento em Redes Ethernet Industrial

Abstract

The Ethernet technology from enterprise level forced the evolution of other fieldbuses in the factory ground. Therefore, several manufacturers nowadays present different Ethernet solutions now called Industrial Ethernet. This engendered several patterns of several manufacturers that became incompatible among themselves. Then, Industrial Ethernet is the attributed name to Ethernet protocol in the industry for automation, process control, machines control and other factory ground applications. With the evolution of Ethernet on factory ground, control system can have higher speed, less response time because the Ethernet is faster than other any fieldbus. This work proposes the implementation of communication scheduler software to an industrial Ethernet with low response time like motion control, for example. It will be analyzed if the scheduling brings to forth any benefit in communication, response time and network's traffic. The obtained results will be compared with expected results considering the network speed and processing time involved in the system. The scheduling obtained was tested through simulations in an Ethernet network with twelve PCs (one master, ten slaves and one network analyzer). Response time was analyzed independently of the external interferences caused by the system used for simulation, such as interferences from operational system, development platform, developed software, used hardware and processing time. The communication method used will be UDP/IP that it is the most used to data exchange in industrial protocols.