Ring With Redundancy Manager - Siemens SCALANCE X-300 Series Operating Instructions Manual

Network topologies

3.4 Ring with redundancy manager

Configuration example
Sample electrical configurations with SCALANCE X310, SCALANCE X-200, SIMATIC
S7-300/400, SIMATIC ET 200, and operator panels as end devices.
PROFINET
Industrial Ethernet
SCALANCE
X310
S7-1500
S7-400
ET 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).
24
S7-400
Operator Station
SCALANCE
X310
S7-1500
S7-400
ET 200S
PC
SCALANCE
X308-2M
S7-1500
S7-400
ET 200S
Operating Instructions, 11/2019, A5E01113043-24
SCALANCE
X308-2M
S7-1500
S7-400
ET 200S
SCALANCE X-300