Siemens SCALANCE XB-200 Web Based Management page 28

Technical basics
4.4 Redundancy mechanism
● You want to disable MRP:
Select the option "Not node in the ring" if you do not want to operate the device within a
ring topology with MRP.
Note
Role after resetting to factory settings
With brand new Siemens devices and those reset to the factory settings the following
MRP role is set:
• CPs:
• SCALANCE X-200, SCALANCE XB-200 (PROFINET variants), SCALANCE X-300
If you are operating a non-Siemens device as the redundancy manager in the ring, this
may cause loss of the data traffic.
With brand new SCALANCE XB-200 (EtherNet/IP variants), SCALANCE XM-400 and
SCALANCE XR-500 IE switches and those set to the factory settings, MRP is disabled
and spanning tree enabled.
Ring port 1 / ring port 2
Here, select the port you want to configure as ring port 1 and ring port 2.
With devices with more than 8 ports, not all ports can be selected as ring port.
The drop-down list shows the selection of possible ports for each device type. If the ports are
specified in the factory, the boxes are grayed out.
NOTICE
Ring ports after resetting to factory settings
If you reset to the factory settings, the ring port settings are also reset.
If other ports were used previously as ring ports before resetting, with the appropriate
attachment, a previously correctly configured device can cause circulating frames and
therefore the failure of the data traffic.
28
"Manager (Auto)"
and SCALANCE X-400:
"Automatic Redundancy Detection"
SCALANCE XB-200 Web Based Management
Configuration Manual, 04/2015, C79000-G8976-C360-02