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.
EtherNet/IP
EtherNet/IP and the Common Industrial Protocol (CIP).
EtherNet/IP and CIP messaging: explicit vs implicit, RPI, and assemblies
How the Common Industrial Protocol really moves data — connected and unconnected messaging, produced/consumed tags, and sizing connection loads.
Choosing an industrial network topology
Star, line, ring, and redundant designs explained through failure modes, commissioning effort, latency, and the maintenance team’s real needs.
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.
ODVA: EtherNet/IP and CIP technology
ODVA's technology pages covering EtherNet/IP, CIP, DeviceNet, and conformance testing for multi-vendor interoperability.
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
- CIP
- Object-based application layer behind EtherNet/IP and DeviceNet.
- CIP Safety
- Safety protocol extension for CIP networks.
- EDS file
- CIP/EtherNet/IP device description.
- EtherNet/IP
- CIP over standard Ethernet; Rockwell/ODVA ecosystem.
- ODVA
- Standards body for CIP and EtherNet/IP.
- Produced / consumed tags
- CIP implicit data exchange.
- Requested Packet Interval (RPI)
- CIP connection update rate.
Related topics
Industrial Networking · PROFINET · EtherCAT · TSN · PLCs · Motion Control