ABB FEPL-02 Ethernet POWERLINK - Example Topology of the Ethernet POWERLINK Link

22 Overview of the Ethernet POWERLINK network and the FEPL-02 module
The Ethernet POWERLINK network applies the same protocol
technology as CANopen. It defines Service Data Objects (SDO),
Process Data Objects (PDO) and the Object Dictionary structure to
manage the parameters.
The Ethernet POWERLINK network may have a star, tree, daisy
chain or ring structure. The network can also be a combination of
these topologies. The use of repeating hubs instead of switches is
recommended to minimize delay and jitter. Use class 2 hubs.
FEPL-02 has an internal hub, and thus, no external hub is
required.
Further information is available from the Ethernet POWERLINK
Standardization Group (www.ethernet-powerlink.org
).
 Example topology of the Ethernet POWERLINK link
The figure shows an example of an allowable topology for an
Ethernet POWERLINK master with FEPL-02.
Adapter
module
Adapter
module
Ethernet
POWERLINK
master
X2
X1
X1 X2 X1 X2