Mitsubishi MELSEC-Q Series Programming Manual page 206

6 SFC PROGRAM EXECUTION
POINT
In the STOP or PAUSE status, an active step holds the activated status. Therefore,
when the CPU module is set to STOP or PAUSE while the target block is active,
online change (inactive block) cannot be executed to the block.
(a) Program example to execute the Block START instruction during online
change (inactive block)
6 - 21 6 - 21