Configuring the master station
After the adapter module has been initialized by the drive, you must prepare the master
station for communication with the module. For FSPS-21, see Configuring the safety
PLC (page 126) If you are using another master system, refer to its documentation for more
information.
Media Redundancy Protocol (MRP)
The Media Redundancy Protocol (MRP) network uses ring topology that includes multiple
nodes as shown in the connection diagram below. One of the nodes has the Media
Redundancy Manager (MRM) role and the nodes with FSPS-21 module(s) have the role of
Media Redundancy Clients (MRC). Each node, MRM or MRC, has a pair of ports for
connecting in the ring.
For FSPS-21 module, the link speed of both ports is 100 Mbit/s, full duplex.
Note:
The number of nodes in the ring should not exceed 50 nodes.
Port 2
Port 1
PLC or
switch MRM
ABB driveABB drive
1
3
2
1
... ...
4
DescriptionNo.
ABB drive equipped with FSPS-21 module1
PLC or switch with MRM (Media Redundancy Manager)2
Port 13
Port 24
￭ Configuring Media Redundancy Protocol (MRP) with Siemens PLC
You can configure MRP for Siemens PLC with SIMATIC S7 after setting the basic
configuration. For instructions on basic configuration, see section Configuring the Siemens
SIMATIC Fail-safe S7 PLC (page 149).
1. Double-click PN-IO in the station window.
60 PROFINET IO – Start-up
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