Distributed Clocks

The function "Distributed Clocks" enables equidistant sampling of the measured values. Equidistant sampling is a prerequisite for the application of the Nyquist-Shannon sampling theorem.

A possible use case for the "Distributed Clocks" would be, for example, a frequency analysis of the measured acceleration values.

Enable

1. Set the EtherCAT cycle time to a multiple of 250 µs.
2. On the “DC” tab, select the “DC-Synchron” option in the “Operation Mode” list box.
Distributed Clocks 1:
3. Activate the configuration.
Distributed Clocks 2:
Distributed Clocks 3:

Synchronization delayed at startup

After activating the configuration or a power cycle, it takes approx. 100 ms for the sampling rate to synchronize with the distributed clocks.