2 ep9128-0021- introduction – BECKHOFF EP9128 User Manual
Page 9

Product overview
2.2
EP91280021 Introduction
Fig. 4: EP9128
8 channel EtherCAT junction with protection class IP67
Line, tree or star: EtherCAT supports virtually any topologies, which can also be directly branched in the field
using the EtherCAT Box modules
If several junctions are required at one point in the star topology, an EtherCAT junction EP9128 with eight
sockets can be used instead of several EP1122.
The EtherCAT network is connected to the input port 1 of the EP91280021 and can be extended at ports 2
to 8.
EtherCAT topologies can be arranged even more flexibly with the EP9128 EtherCAT junction in IP67, since
connection to the IP20 world is also possible via the ports.
The EtherCAT junctions are connected via shielded M8 sockets with direct display of link and activity status.
In conjunction with TwinCAT or other suitable EtherCAT masters the EP91280021 also supports coupling
and uncoupling of EtherCAT strands during operation (Hot Connect).
The device cannot be used as a standard Ethernet switch.
EP9128
9
Version 2.1.0