Mounting / Installation (all device models)
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DDLS 200
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4.3
Cascading (series connection) of several DDLS 200 data paths
If there are multiple optical data transmission paths between two communicating participants (TN),
one speaks of cascading. There are further participants between the individual optical transmission
paths in this case.
Figure 4.3: Cascading of several DDLS 200 systems
ATTENTION!
If, for example, participant 3 (TN3) of a multi-master bus system wants to exchange data
directly with participant 7 (TN7), then five optical transmission paths are cascaded.
This constellation can also occur if, e.g., a programming device that attempts to access
participant 3 (TN3) is connected to participant 7 (TN7) for maintenance purposes or during
commissioning of a master-slave-system.
DDLS 200
DDLS 200
DDLS 200
DDLS 200
DDLS 200
DDLS 200
Master
TN1
TN8
TN2
TN4
TN5
TN3
TN6
TN7
Path 1
Path 3
Path 4
Path 2
Path 5
Path 6
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