Why EtherCAT is Superior to Sercos, Profinet and Other Fieldbus Standards

June 10, 2021


This paper examines five different important protocols that have emerged as contenders to offer the best price/performance open standard for real-time Ethernet fieldbuses.

EtherCAT In alphabetical order, the standards being compared are EtherCAT, EtherNet/IP, Ethernet Powerlink, PROFINET IRT, and SERCOS III. There are other technologies that leverage Ethernet as well, but their components are not sufficiently published, downloadable or promulgated in the open source community to be considered standard and open.

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