Mitsubishi Electric MELSEC-Q Series Programming Manual page 85

Program example
• The following program turns ON Y20 when block 3 is active.
■Related Instructions
SFC control instructions
• Block START instruction (sBLm) and block END instruction (rBLm) (Refer to  Page 90 Block START & END
instructions (s, r) [BLm].)
SFC diagram symbols
• Block START step (Bm , Bm
(without END check))
SFC information device
• Block START/END bit (Refer to Page 106 Block START/END bit.)
) (Refer to  Page 52 Block START step (with END check), Page 53 Block START step
4.4 Controlling SFC Programs by Instructions (SFC Control Instructions)
4 SFC PROGRAM CONFIGURATION
4
83