Omron NJ101-10 Series, User Manual

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
Junction Slave
a. An EtherCAT configuration can have only one Junction Slave that becomes the originating
slave of the ring. Use the OMRON GX-JC03 EtherCAT Junction Slave.
Precautions for Correct Use
To use a Junction Slave as the originating slave of the ring, set Cable Redundancy to Enable
from the Sysmac Studio. Refer to 5-2-2 Cable Redundancy Setting on page 5-5 for how to
set Cable Redundancy to Enable .
b. You can use more than one Junction Slave in a ring topology. Use the OMRON GX-JC03 Ether-
CAT Junction Slave.
Precautions for Correct Use
Use the OMRON EtherCAT Junction Slaves with unit version 1.1 or later.

Slave
a. In a ring topology, use slaves that support the ring topology.
If you use OMRON slaves, refer to the user's manual for each slave for information on topolo-
gies, and check that the slaves support the ring topology. Check also that their versions are
supported.
b. You cannot connect synced slaves in a ring topology and in a drop line from the ring.
Precautions for Correct Use
Some slaves can select to operate the synced slave or the non-synced slave. If you connect
this slave in the ring topology and in the drop line from the ring, set distributed clock setting to
Disabled on the Sysmac Studio so that the slave will operate as a non-synced slave.
For example, for the EtherCAT Coupler Units, the initial value of the distributed clock setting is
Enabled , so you must change the value to Disabled .
Slave A shown in the following figure is not connected either "in the ring topology" or "in the
drop line from the ring", so you can connect the synced slaves.
4 EtherCAT Network Wiring
4-6
NJ/NX-series CPU Unit Built-in EtherCAT Port User's Manual (W505)