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4 SFC PROGRAM CONFIGURATION
MELSEC-Q
[Program Examples]
(1) The following program turns ON Y20 when block 3 is active.
aBL3
oY20
Related Instructions
a) SFC control instructions
• Block START instruction (sBLm)
and block END instruction (rBLm) ................................See Section 4.4.6
b) SFC diagram symbols
• Block START step ( Bm
, Bm
) .............................See Sections 4.2.8
and 4.2.9
c) SFC information device
• Block START/END bit....................................................See Section 4.5.1