AiVibeEtherCAT
EtherCAT is a real-time industrial Ethernet protocol, developed by Beckhoff and managed by the EtherCAT Technology Group, in which devices process frames on the fly as they pass, enabling very short cycle times and precise synchronisation.
In an EtherCAT network, a master sends standard Ethernet frames that pass through every slave device in turn. Each slave's EtherCAT slave controller reads the output data addressed to it and inserts its input data while the frame passes, with only a small hardware delay, and the frame returns to the master over the full-duplex link. One frame can therefore serve many devices, making very efficient use of bandwidth. Distributed clocks synchronise devices with sub-microsecond accuracy.
EtherCAT is used in motion control, machine tools, robotics, semiconductor equipment, packaging and test systems where fast, deterministic cycles are needed. The master needs only a standard Ethernet port, which makes it popular in PC-based control. Device profiles reuse established application layers, such as CANopen over EtherCAT (CoE) and the Servo Drive Profile over EtherCAT (SoE), and Safety over EtherCAT (FSoE) carries safety data.
EtherCAT supports line, tree, star and ring topologies, with cable redundancy available. It is standardised in IEC 61158 and IEC 61784, and the EtherCAT Technology Group handles conformance testing. Because slaves require dedicated controllers, devices must be designed for EtherCAT, and standard Ethernet traffic is tunnelled through Ethernet over EtherCAT (EoE) rather than mixed freely on the segment.
Key points
- Slave devices process frames on the fly as they pass through
- Developed by Beckhoff; managed by the EtherCAT Technology Group
- Distributed clocks enable sub-microsecond synchronisation
- Reuses established device profiles such as CANopen over EtherCAT
- Safety over EtherCAT (FSoE) carries safety data
Where AiVibe comes in
AiVibe designs and manufactures the AiAmbA AI Factory, whose edge devices and AI agents let people talk to PLC, CNC and robot controllers in plain language. Agents only propose changes, a trained operator confirms each one, and the AI Factory never replaces a machine's control or safety systems.