User`s manual

6 - 3 6 - 3
MELSEC-Q
6 INSTRUCTION LIST
6.2.2 Control operation instruction
Table 6.3 Control Operation Instruction
Category
Instruction
Symbols
Symbol Processing Details
Number of
Basic Steps
See for
Descript
ion
S.PID
S.PID S2 D2S1 D1 S3
Conducts process value
derivative type PID operations.
(Incomplete differentiation)
Performs SV setting processing,
tracking processing, gain Kp
operation processing, PID
operation and deviation check.
99-1
S.2PID
S.2PID
S2 D2
S1 D1 S3
Performs 2-degree-of-freedom
PID operation (incomplete
differentiation).
Performs SV setting processing,
tracking processing, gain Kp
operation processing, 2-degree-
of-freedom PID operation and
deviation check.
99-9
S.PIDP
S.PIDP
S2 D2
S1 D1 S3
Performs position type PID
operation.
Performs SV setting processing,
tracking processing, gain Kp
operation processing, PID
operation, deviation check and
operation mode judgment.
According to the result, performs
change rate, upper/lower limiter
and output on time conversion or
performs alarm clear processing
and output on time conversion.
99-17
S.SPI
S.SPI
S2 D2
S1 D1
S3
Judges between the operating
time and hold time, and if it is the
operating time, performs SV
setting processing, tracking
processing, gain Kp operation
processing, SPI operation and
deviation check.
99-26
S.IPD
S.IPD
S2 D2
S1 D1 S3
Performs I-PD operation.
Performs SV setting processing,
tracking processing, gain Kp
operation processing, IPD
operation and deviation check.
99-33
S.BPI
S.BPI
S2 D2
S1 D1
S3
Performs blend PI operation.
Performs SV setting processing,
tracking processing, gain Kp
operation processing, BPI
operation and deviation check.
99-41
S.R
S.R
S2 D2
S1 D1 S3
Performs engineering value
conversion, tracking processing,
change rate limiter and rate
operation on the input data.
89-48
S.PHPL
S.PHPL
S1 D1
S2 D2
Conducts an Upper limit
value/lower limit value check of
the PV output by the S.IN
instruction.
89-53
Control
operation
instruction
S.LLAG
S.LLAG S1 D1 S2 D2
Conducts Lead/lag compensation
for input data and outputs the
operation results.
89-59