User`s manual
6 - 4 6 - 4
MELSEC-Q
6 INSTRUCTION LIST
Table 6.3 Control Operation Instruction
Category
Instruction
Symbols
Symbol Processing Details
Number of
Basic Steps
See for
Descript
ion
S.I
S.I
S1 D1
S2 D2
Conducts integral operations on
the input data and outputs the
operation results.
79-61
S.D
S.D
S1 D1 S2 D2
Conducts Derivative operations
on the input data and outputs the
operation results.
79-63
S.DED
S.DED S1 D1 S2 D2
Delays the input data by the
specified dead time and then
outputs it.
89-65
S.HS
S.HS S1 D1 S2 D2
Outputs the maximum value
among the input data.
79-68
S.LS
S.LS
S1 D1 S2 D2
Outputs the minimum value
among the input data.
79-70
S.MID
S.MID
S1 D1 S2 D2
Outputs the intermediate value
between the maximum value and
minimum value among the input
data.
89-72
S.AVE
S.AVE
S1 D1 S2 D2
Calculates and outputs the
average value of the input data.
89-75
S.LIMT
S.LIMT
S1 D1
S2 D2
Limits the output value with
hysteresis.
89-77
S.VLMT1
S.VLMT1
S1 D1 S2 D2
Limits the varying speed of the
output value.
9
9-79
S.VLMT2
S.VLMT2 S1 D1 S2 D2
Limits the varying speed of the
output value.
9
9-81
S.ONF2
S.ONF2
S2 D2
S1 D1 S3
Performs two-position ON/OFF
control.
Performs SV setting processing,
tracking processing, MV
compensation, MV output and
two-position ON/OFF control.
9
9-83
S.ONF3
S.ONF3
S2 D2
S1 D1 S3
Performs three-position ON/OFF
control.
Performs SV setting processing,
tracking processing, MV
compensation, MV output and
three-position ON/OFF control.
9
9-89
S.DBND
S.DBND
S1 D1
S2 D2
Provides a dead band and
performs output processing.
8
9-95
S.PGS
S.PGS
S1 D1 S2 D2
Provides a control output
according to the SV and MV
pattern.
8
9-97
S.SEL
S.SEL
S2 D2
S1 D1
S3
Outputs the value selected by the
selection signal out of the input
data in the automatic mode, or
outputs the MV of the loop tag
memory in the manual mode.
9
9-102
S.BUMP
S.BUMP
S1 D1
S2 D2
Brings the output value closer to
the output set value from the
output control value gradually
when the mode select signal is
switched from manual to
automatic.
8 9-108
Control
operation
instruction
S.AMR
S.AMR
S1 D1 S2 D2
Increases or decreases the output
value at the fixed rate.
8 9-110