5 Installation and Commissioning
Communication with S7 CPU via KNX Gateway
Entry ID: 109739689, V1.0, 06/2017
Siemens AG 2017 All rights reserved
5.2.2 Installation under plant conditions
Under “real” conditions, a SIMATIC controller is normally directly connected to a
KNX gateway. The gateway is integrated into a PROFINET network via the two
PROFINET interfaces and connected to the KNX network via the KNX interface.
Figure 5-2: Installation under plant conditions
PROFINET 1 / 2
IP: 192.168.0.2
RS 232/485
“Triple-X PROFINET + KNX”
universal gatewy
LAN
PN
24V DC
S7-1200 CPU
24V DC
IP: 192.168.0.1
IP: 192.168.0.3
KNX
+ -
PROFINET IE
KNX
KNX
power supply
+ -
L N PE
KNX
wall switch
+ -
KNX
room
control unit
+ -
230V AC