Operating hardware
4.4 Media redundancy
CP 1604 / CP 1616
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Operating Instructions, 02/2017, C70000-G8976-C218-08
●
You want to use MRP in a ring topology that also includes non-Siemens devices or you
want to receive diagnostic interrupts relating to the MRP status from a device (see
"Diagnostic interrupts"):
–
Assign precisely one device in the ring the role of "Manager (Auto)".
–
For all other devices in the ring topology, select the role of "Client".
●
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:
•
"Manager (Auto)"
CPs
•
"Automatic Redundancy Detection"
–
SCALANCE X-200
–
SCALANCE XC-200
–
SCALANCE XB-200 (PROFINET variants)
–
SCALANCE XP-200 (PROFINET variants)
–
SCALANCE X-300
–
SCALANCE X-400
If you are operating a non-Siemens device as the redundancy manager in the ring, this
may cause loss of the data traffic.
MRP is disabled and spanning tree enabled for the following brand new IE switches and
those set to the factory settings:
•
SCALANCE XB-200 (Ethernet/IP variants)
•
SCALANCE XP-200 (Ethernet/IP variants)
•
SCALANCE XM-400
•
SCALANCE XR-500
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.
