Mitsubishi Electric MELSEC Q Series Reference Manual page 332

(b) When CPU No. is specified for Target station's CPU type of the instruction
The instruction is not executed on a station where the CPU No. of the control CPU is different from the one
specified for Target station's CPU type. (Note that no error will be detected on the request source.)
When executing WRITE instruction
under the following conditions:
330
Target station's CPU type
Multi-CPU No.1(03E0 )
H
Target station No.
All stations (FF )
H
1 2 1 2
Since the control CPU of the CC-Link IE Controller Network module is No.2,
the instruction to multi-CPU No.1 is not executed.
1 2 2 1 Control CPU setting