Mitsubishi Electric MELSEC Q Series Reference Manual page 200

(4) Precautions
(a) Do not perform the shared group setting for any station of a Universal model QCPU
that does not support the group cyclic transmission function and stations other
than Universal model QCPUs.
If it is set by mistake, cyclic data of the stations in different shared groups will not refreshed to the devices of the
CPU module.
(b) In "CC IE Control Supplementary Setting", enable "Block Data Assurance per
Station". (Default)
( Page 201, Section 6.3.6)
If "Block Data Assurance per Station" is enabled, cyclic data of the stations in different shared groups will not
be refreshed to the link devices. (
Remark
It is recommended to refresh cyclic data of the stations with no shared group setting and the stations of the same shared
group No. as of the own station.
Cyclic data of the stations in different shared groups need not be refreshed. (
Refresh parameter setting of station number 4 in the system shown in Page 197, Section 6.3.3 (3)
Ex.
198
Page 76, Section 4.1.5)
CPU module
Link register (W)
No.1
W0 to W3FF
No.4
W400 to W4FF
No.5
W500 to W5FF
Page 204, Section 6.5)
CC-Link IE Controller
Network module (station No.4)
Link register (LW)
No.1
LW0 to LW3FF
No.2
LW400 to LW4FF
No.3
LW500 to LW5FF
No.4 send range LW600 to LW6FF
No.5
LW700 to LW7FF
LW1FFFF