Operating hardware
4.4 Media redundancy
CP 1604 / CP 1616
80
Operating Instructions, 02/2017, C70000-G8976-C218-08
In the STEP 7 configuration, in the properties dialog of the PROFINET interface > "Media
redundancy" tab > "MRP configuration" box, set the role to "Not node in the ring" in the "mrp-
domain1" domain.
4.4.3
MRP configuration
Configuration in STEP 7
To create the configuration in STEP 7, select the parameter group "Media redundancy" on
the PROFINET interface.
Set the following parameters for the MRP configuration of the device:
●
Domain
●
Role
●
Ring port
●
Diagnostic interrupts
These settings are described below.
Note
Valid MRP configuration
In the MRP configuration in STEP 7, make sure that all devices in the ring have a valid MRP
configuration before you close the ring. Otherwise, there may be circulating frames that will
cause a failure in the network.
One device in the ring needs to be configured as "redundancy manager" and all other
devices in the ring as "clients".
Note
Note factory settings
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
To load a PROFINET configuration into one of the specified devices, first disable spanning
tree on the device.
Note
Changing the role
If you want to change the MRP role, first open the ring.