Omron Sysmac NJ Series User Manual page 134

5 Setting Up EtherCAT Communications with the Sysmac Studio
GX-JC03
Junction Slave
IN
X2
X3
Ring topology
(A)
• Cause 2 of incorrect wiring: A ring topology is configured, but the Junction Slave that cannot be
used for the originating slave of the ring is used.
For the collection, if you configure a ring topology, check that the GX-JC03 Junction Slave is
used for the originating slave of the ring. If you do not configure a ring topology, review the wiring
so that output ports are not connected to each other.
In the example below, if you configure a ring topology, change the GX-JC06 Junction Slave to
the GX-JC03 Junction Slave, and then reconnect the cable that is currently connected to X5 and
X6 of the Junction Slave to X2 and X3, respectively. If you do not configure a ring topology, re-
move the cable that is connected to X6 or connect the cable that is connected to X6 to the input
port of the Slave #2.
5-36
GX-JC03
Junction Slave
IN
X2
GX-JC03
X3
Junction Slave
IN
X2
X3
Slave
Slave
NJ/NX-series CPU Unit Built-in EtherCAT Port User's Manual (W505)
Ring topology
(B)
Input port
Output port
Slave
Slave