Siemens RF180C Operating Instructions Manual page 18

Connecting
PROFINET IO installation techniques
PROFINET IO communication can be set up as a bus a "BUS" or "STAR". Please note the
information in the section "Loop-through connection of PROFINET IO and supply voltage
(Page 26)".
Controller e.g.
CPU S7-400
Figure 4-1
Controller e.g.
CPU S7-400
Figure 4-2
18
RF180C
PROFINET
24 VDC
RF180C with "BUS"setup
Switch
(e.g. SCALANCE)
PROFINET
24 VDC
RF180C with "STAR" setup
RF180C RF180C
RF180C RF180C
Operating Instructions, 12/2012, J31069-D0177-U001-A6-7618
RF180C
RF180C communication module