Siemens 6GK1970–5CA20–0AA2 Instructions De Montage page 339

6ZB5530–3AC30–0BA1
Slave
PROFIBUS
master network segment
Master
Master
Slave
Slave
Figure 4: Link Between Several Slave Network Segments and One Master Network Segment
Infrared
transmission link 1
0.5 to 15 m
ILM
PROFIBUS
slave network segment 1
Optical isolation between the infra-
red transmission links
Infrared
transmission link 1
0.5 to 15 m
ILM
PROFIBUS
slave network segment 2
15
Infrared Link Modul (ILM)
ILM
Slave
Slave
ILM
Slave
Slave
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