Lenze E84AYCET EtherCAT MCI module Manual de usuario descargar pdf (Pagina 37)

Lenze · E84AYCET communication module (EtherCAT) · Communication Manual · DMS 5.0 EN · 05/2013 · TD17 37

6 Commissioning

6.4 Synchronisation with "Distributed Clocks" (DC)

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6.4 Synchronisation with "Distributed Clocks" (DC)

The "Distributed clocks" (DC) functionality enables exact time synchronisation for applications in

which several axes perform a coordinated movement simultaneously. Data are incorporated

synchronously with the PLC program. During DC synchronisation, all slaves are synchronised with a

reference clock, the so-called "DC master".

[6-1] Example: "Distributed clocks" in the EtherCAT bus system with Lenze Controller 3231 C

The DC synchronisation is set with the EtherCAT configuration software.

 Note!

• DC synchronisation is absolutely required for Motion applications.

• DC synchronisation can also be used for Logic applications.

• Not all slaves support the DC functionality.

• On order to be able to use the DC functionality, the first slave connected to the

EtherCAT master (e.g. Lenze Controller) must have DC master capability.

When further slaves are connected, DC-capable and non-DC-capable devices can be

mixed.

• The first EtherCAT slave after the Lenze Controller must

be the DC master that

supplies the other EtherCAT nodes (incl. Controller) with the exact time.

 "Control technology EtherCAT" communication manual

Here you can find some detailed information about the EtherCAT configuration and the

commissioning of Lenze devices in the EtherCAT network.

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Lenze E84AYCET EtherCAT MCI module Manual de usuario Pagina 37