Omron NJ101-10 Series, User Manual

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Slave #1
Slave #2
X4
X5
X6
Input port
Output port
Ring topology
GX-JC06
Junction Slave
Originating slave
of the ring
• Cause 3 of incorrect wiring: The wiring for the start port of the ring and the wiring for the end port
of the ring are reversed.
Check that the wiring for the start port of the ring and the wiring for the end port of the ring are
not replaced each other.
In the example below, reconnect the cables that are currently connected to X2 and X3 of the
Junction Slave to X3 and X2, respectively.
Slave
Slave
Replace the wiring for the start port of the ring and
the wiring for the end port of the ring
Input port
Output port
X2
X3
IN
GX-JC03
Junction Slave
Start port of the ring
End port of the ring
• Cause 4 of incorrect wiring: If a Junction Slave is connected in a ring topology, the output port to
which the slave immediately after the Junction Slave is connected is not the last port of the Junc-
tion Slave.
Review the wiring so that the last port is used for the output port of the Junction Slave in the ring
topology.
5 Setting Up EtherCAT Communications with the Sysmac Studio
5-37
NJ/NX-series CPU Unit Built-in EtherCAT Port User's Manual (W505)
5-6
Comparing and Merging EtherCA
T Network Configurations
5
5-6-3
When
Compare and Merge with Actual Network Configuration
Dialog Box Is Not Displayed