Mitsubishi Electric MELSEC Q Series Reference Manual page 236

(1) Precautions
(a) Set the transfer target link device within the own station's send range of the transfer
target network module.
(If it is set to an area outside the own station's send range of the transfer target network module, the area is
overwritten at the time of link scan.)
Set this within its own
station send range of
network module 1.
(b) Do not set the transfer target link device range within the link refresh range.
(The transfer target link device will be overwritten during link refresh.)
When it is desired to use the transfer target link device data on the CPU module, set the transfer source link device within the
link refresh range.
234
Network module 1
LB
0 0 to 3F
FF
100 100 to 15F
1FF
CPU module
Link refresh
range
Link refresh
range
Network module 2
LB
0
1000 to 103F
1000
10FF
1100 to 115F
1100
11FF
Network Network
module 1 module 2
Target
Source
Set this within its own
station send range of
network module 2.