Lenze EMF2192IB - Manual (Page 33)

Commissioning
Synchronisation with "Distributed clocks" (DC)
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33 EDSMF2192IB EN 3.1
6.3 Synchronisation with "Distributed clocks" (DC)
The "Distributed clocks" (DC) functionality enables an exact time adjustment for
applications where several auxiliary axes carry out a coordinated movement at the same
time. The data is accepted synchronously with the PLC program. With the DC
synchronisation, all slaves are synchronised with a reference clock, the so−called "DC
master".
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Note!
ƒ Motion applications always require DC synchronisation.
ƒ DC synchronisation can also be used for logic applications.
ƒ Some slaves do not support the DC functionality.
– In order to be able to use the DC functionality, the first slave connected to
the EtherCAT master (e.g. L−force Controller) must be DC master−capable.
– In the arrangement of the slaves following then, DC−capable and
non−DC−capable devices can be mixed.
ƒ The first EtherCAT node after the EtherCAT master must be the DC master
which provides the exact time to the other EtherCAT nodes (incl. EtherCAT
master).
2192ECAT020
Fig. 6−1 Distributed clocks (DC)
The settings for DC synchronisation are made using the EtherCAT configuration software.
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¶ 31).