Omron NJ101-10 Series, User Manual

Page: 87 / 280

Slave D
IN
X2
X3
GX-JC03
Junction Slave
EtherCAT master
Ring topology
Input port
Output port
Slave C
Slave B
Slave A
GX-JC03
Junction Slave
IN
X2
X3
Drop line from the ring
¡ :Can be connected with synced slaves
Í
:Cannot be connected with synced slaves
Originating slave of the ring
c. If the Junction Slave is connected between the EtherCAT master and the originating slave of
the ring, synced slaves can be connected to the following output ports of the Junction Slaves.
• Output port numbers smaller than those for the Junction Slave connected to the input port of
the originating slave of the ring
• Output port numbers smaller than those for the Junction Slave connected to input port for the
Junction Slave between Junction Slaves if more than one Junction Slave is connected
This section describes an example to which two Junction Slaves are connected.
In the following figure, you can connect a synced slave to X3 for Junction Slave B because the
input port of the originating slave of the ring is connected to X4 for Junction Slave B. However,
you cannot connect a synced slave to X5 for Junction Slave B.
You can also connect a synced slave to X4 for Junction Slave A because the input port of the
Junction Slave B is connected to X5 for Junction Slave A. However, you cannot connect a
synced slave to X6 for Junction Slave A.
4 EtherCAT Network Wiring
4-7
NJ/NX-series CPU Unit Built-in EtherCAT Port User's Manual (W505)
4-1 Supported Network T
opologies
4
4-1-3
Ring T
opology