Delta DVP-ES2 - Manual (Page 629)

5 . S e q u e n t i a l F u n c t i o n C h a r t
c Returning to
the initial
step in the
same
sequence.
d Jumping
up/down to
non-adjacent
steps in the
same
sequence.
SFC: Ladder diagram:
S0
S2 1
S2 4
S2 5
X7
X2
OUT
OUT
S2 4
S2 1
S
S0
S
S23
S
X2
S24
S
S25
S
S0
X7
RET
Using OUT S24
Using OUT S0
S25 returns to the initial
step S0 by using OUT.
Jump to another step
of step
Return to initial step
e Driving steps
in different
sequences.
SFC: Ladder diagram:
S0
S21
S23
X2
OUT
OUT
S1
S41
S43
OUT
S42
S42
S21
S
S0
S
S1
S
X2
S42
S
S43
S
RET
S23
S
RET
Step
sequence
initiated
by S0
Step
sequence
initiated
by S1
Using OUT S42
Two different step sequence: S0 and S1
S23 returns to initial step S0 by using OUT.
S43 returns to initial step S1 by using OUT.
Drive the step in
different sequence
Cautions for Driving Output Point:
Once LD or LDI instructions are written into the second line after the step point, the bus will not be
able to connect output coils directly otherwise errors will occur when compiling the ladder diagram.
The following diagram explains the methods for correcting the ladder ion correct diagram.
Y0
S
S
Y1
Y2
M0
n
Y0
S
S
Y2
Y1
n
M0
Y0
S
S
Y1
Y2
M0
n
M1000
BUS
or
Modify the
position of M0. Normally open
contact in RUN
mode
Restrictions on Using Certain Instructions:
Serial/parallel circuits or instructions in general ladder diagram are also applicable in step points of
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