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EtherCAT
7.4.4
Control cycle times when cascading data transmission paths
NOTICE
The cascading of the DDLS 538 ... is limited to two data transmission paths.
The limitation to two successively arranged data transmission paths begins again with each bus
terminal or with direct master connection.
For the calculation of the cycle times with cascading, a distinction must be made as to whether or not an
EtherCAT slave participant is installed between the two data transmission paths.
EtherCAT slave participant between the data transmission paths
Calculation of the minimum control cycle times see chapter 7.4.3 "Calculation of the control cycle time".
E therC A T
1
2
1
Master
2
Bus terminals
Fig. 7.6:
Cascading with slave participant between the data transmission paths
Leuze electronic GmbH + Co. KG
D D LS 538
D D LS 538
S lave
F requency
F4
F requency
F3
D D LS 538
D D LS 538
S lave
F requency
F requency
F3
F4
D D LS 538
D D LS 538
S lave
F requency
F4
F requency
F3
DDLS 538 ...
D D LS 538
D D LS 538
F requency
F4
F requency
F3
D D LS 538
D D LS 538
F requency
F4
F requency
F3
S lave
S lave
58
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