Resumo:
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.
