Mitsubishi Electric MELSEC Q Series User Manual page 74

(b) Q12DCCPU-V
● For the remote reset operation, refer to the following.
 Page 163, Section 11.5
● Resetting CPUs No.2-4 in multiple CPU system
You cannot reset CPU modules No.2-4 individually.
When you reset any one of No.2 through No.4 during operations of the multiple CPU system, an error occurs in the other
modules.
In this case, the entire multiple CPU system is down regardless of the operation mode set in Multiple CPU Setting (All
station stop by stop error of PLC2-PLC4/Continue).
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1.
Move the RESET/SELECT switch to the RESET position.
2.
Check that the MODE LED goes off.
3.
Move the RESET/SELECT switch back to the center.
4.
Check that the MODE LED turns on in orange.