PROFINET vs EtherNet/IP vs EtherCAT: a selection guide
Compare PROFINET, EtherNet/IP, and EtherCAT on synchronization, cycle time, topology, tooling, and ecosystem — and pick the protocol your plant can live with.
EtherCAT
EtherCAT: high-speed Ethernet fieldbus with on-the-fly frame processing.
EtherCAT explained: on-the-fly frames and sub-microsecond synchronization
How EtherCAT processes Ethernet frames on the fly, why distributed clocks matter for motion control, and when to choose it over PROFINET or EtherNet/IP.
Time-Sensitive Networking: a primer for automation engineers
Scheduled traffic, preemption, and time sync on standard Ethernet — what TSN guarantees, what it still needs, and where it meets the fieldbus.
A field guide to industrial Ethernet
PROFINET, EtherNet/IP, EtherCAT, and TSN serve different masters. What each was designed for and how to tell them apart.
EtherCAT technology introduction
The EtherCAT Technology Group's technical introduction: functional principle, distributed clocks, topologies, and performance figures.
IEEE 802.1 Time-Sensitive Networking (TSN)
The IEEE 802.1 working group's TSN pages: task group, published standards (Qbv, Qbu, CB, Qcc), and ongoing projects.
Terms in this topic
- Distributed clocks
- EtherCAT's sub-microsecond node synchronization mechanism.
- EtherCAT
- High-speed fieldbus with on-the-fly processing for motion.
Related topics
EtherNet/IP · Industrial Networking · PROFINET · Motion Control · TSN