EtherCAT has some technologies for the distributed application:
(1)Distribute clocks
(2)Time stamp
Distributed clocks
All EtherCAT devices have their own local clocks
Automatically and continuously Synchronized with the clocks via the EtherCAT communication
The Accuracy of the Time is decided by the hardware
<100ns, accuracy
Time stamp
Time stamped data types contain a time stamp in addition to their user data.
naturally expressed in the ubiquitous system time
enables provision of temporal information with significantly higher precision for the process record
Time Stamp is a good features support for the distributed application
Time stamps can be used for inputs (e.g. to identify the time of an event occurred) and outputs (e.g. timing of a response).
Distributed OS application- QNX
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