Mitsubishi Electric MELSEC Q Series Reference Manual page 112

Use the same number for the third octet (network number) of the IP addresses of an Ethernet device and a CPU
3
module connected to the Ethernet device.
Ethernet device
(request source device)
Do not use the third octet (network number) of the IP address same as that of other network modules and other
4
CPU modules using the IP packet transfer function.
Do not use the same network numbers for those highlighted.
192.168.10.11
Network No.10
*1 Do not use the same network numbers for those of network modules other than the CC-Link IE Controller Network
module.
QJ71E71-100 (Ethernet interface module)
Ex.
● When setting the IP address in each device, do not use the IP addresses already used for other devices.
110
Built-in
Ethernet
port QCPU
192.168.10.11 192.168.10.36
Network No.10
192.168.10.36
Ethernet
IP address setting
not required
192.168.2.1
Normal Universal Control
station model station
QCPU
Station Station
No.1 No.8
192.168. 2.8
Network No.2
Network No.32
Ethernet
Network No.2
CC-Link IE Controller Network
192.168.7.18
Control
station
Station
No.18
*1
192.168.21.2
192.168.21.1
Network No.21
Ethernet