Siemens Industrial Ethernet Switches SCALANCE X-200 - Manual (Page 185)

Configuration / diagnostics using remote mechanisms
6.3 Configuration using Web Based Management (WBM) and Command Line Interface (CLI)
SCALANCE X-200
Operating Instructions, 12/2011, A5E00349864-19
185
6.3.5.14 The "X200 Ring" WBM menu
"Ring redundancy"
In this dialog, you can configure the ports for fast ring redundancy. You can also select the
required redundancy method in this mask.
Note
X-200 IE switches as of firmware V4.0 support the media redundancy methods MRP and
HSR.
X-200 IE switches with firmware V3.1 and older, X-300 and X-400 IE switches with firmware
V2.3 and older and OSMs/ESMs support only the HSR method.
Note
If you want to configure an MRP ring, the devices can be interconnected to form a ring
without any extra configuration. In this case, the default ring ports must be used, see section
"Overview of the product characteristics", table "Overview of the connection options". The
default mode "Automatic Redundancy Detection" automatically configures the ring.
If an HSR ring is configured, exactly one device in the ring must be set to "HSR Manager"
mode. All other devices in the ring must be set to either "Automatic Redundancy Detection"
or "HSR Client".
If an HSR ring is configured in which a linear bus is set up in which a device is set to "HSR
manager" and the other devices have the setting "Automatic Redundancy Detection", the
error message "other RM in ring" is signaled. This disappears after connecting the linear bus
to form a ring.
Note
As default, a mode for automatic ring configuration is enabled. This causes cyclic frame
communication at a low data rate. If it is not required, disable this redundancy function to
avoid unnecessary network load.