Mitsubishi Electric MELSEC Q Series Reference Manual page 66

Remark
A station with a Basic model QCPU or safety CPU will receive another station's data in LB/LW0 to 3FFF, which is set in
"LB/LW Setting(2)", however, they will not be refreshed to the CPU module's devices.
Only the direct access to link devices is available. (
Universal model
QCPU
Control station (No.1)
Link register (LW)
LW0
No.1 send range
No.2
No.3
No.4
No.1 send range
No.2
No.4
LW4000
(b) When a station other than Universal model QCPUs exists on the network
The station cannot receive other stations' data of station No.65 and higher.
Universal model QCPU
Control station
No.1
No.1 send range
(c) When a Universal model QCPU exists on the network
If the group cyclic transmission function is used, the station can receive other stations' data of the same shared
group and those of the stations to which no shared group is set.
It does not receive data of other stations in different shared groups. (
64
Universal model
QCPU
Normal station (No.2)
No.1
No.2 send range
No.3
No.4
No.1
No.2 send range
No.4
High Performance model QCPU
Normal station
No.64
LB/LW
No.64
No.120
Page 70, Section 4.1.4)
Basic model QCPU
Normal station (No.3) Normal station (No.4)
No.1
No.2
No.3 send range
No.4
No.1
No.2
No.4
Not refreshed to CPU module devices.
Accessible only by direct access to link
devices.
No.1
No.64 send range
Universal model
QCPU
No.1
Setting range of
No.2
LB/LW settings (1)
No.3
No.4 send range
No.1
Setting range of
No.2
LB/LW settings (2)
No.4 send range
Universal model QCPU
Normal station
No.120
No.1
No.64
No.120 send range
Page 83, Section 4.1.8)