Siemens SIMATIC NET PROFIBUS - Manual (Page 355)

Infrared Link Modul (ILM) 6ZB5530–3AC30–0BA1
13 Copyright

by Siemens
Master
Master
Slave
Slave
Slave
Slave
Slave
Slave ILM
ILM
ILM
ILM
Infrared
transmission link 1
0.5 to 15 m
Infrared
transmission link 2
0.5 to 15 m
PROFIBUS
master network segment
PROFIBUS
slave network segment 1
PROFIBUS
slave network segment 2
Optical isolation between the transmission links.
Figure 3: Cascading Two PROFIBUS ILM Transmission Links