Configuration example
Sample electrical configurations with SCALANCE X310, SCALANCE X-200, SIMATIC
S7-300/400, SIMATIC ET 200, and operator panels as end devices.
Operator Station
PC
S7-400
PROFINET
Industrial Ethernet
SCALANCE
X310
SCALANCE
X310
SCALANCE
X308-2M
SCALANCE
X308-2M
*B,.B;;B
6&$/$1&(
;
S7-400 S7-400 S7-400 S7-400
S7-1500 S7-1500 S7-1500 S7-1500
ET 200SET 200SET 200SET 200S
Figure 3-2 Star structure (electrical)
3.4 Ring with redundancy manager
Ring with redundancy manager
To increase availability, linear topologies of up to 100 switches can be closed to form a ring:
● Optical: SCALANCE XR-500, SCALANCE XM-400, SCALANCE X-300, SCALANCE X-200
● Electrical: SCALANCE XR-500, SCALANCE XM-400, SCALANCE X-300,
SCALANCE X-200 or ESM
Functional description
The two ends of the bus are closed to form a ring by a IE Switch X-300 operating as a
redundancy manager. Both the redundancy manager and the other IE switches (redundancy
clients) in the ring must be interconnected via their ring ports (see below).
Network topologies
3.4 Ring with redundancy manager
SCALANCE X-300
24 Operating Instructions, 11/2019, A5E01113043-24