This information hasn’t attack or partial with products and company but we presents information for your benefit.
In automation, there is no standard for communication today.
Each manufacturer uses its own protocol. Now start with TCP / IP as a means of exchanging data.
They developper to the design of protocols based on TCP. I do not know what one will be widespread. One criteria for openness.
Before comparison between Modbus/TCP,Ethernet/IP and ProfiNet ,we should be to understand for each communication standards.
PROFINET is the open Industrial Ethernet standard of PROFIBUS and PROFINET International (PI) for automation. PROFINET uses TCP / IP and IT standards and are, in reality, real-time Ethernet.

profinet diagram

The Profinet concept is modular, so users can freely choose overlapping functions. They differ primarily because of the nature of the exchange of data with the sometimes very high speed. (more…)

Tags: Ethernet Communication, , , , , Ethernet/IP, Modbus/TCP, plc, ProfiNet

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