Mitsubishi MELSEC System Q User Manual

NOTE For more information about PID control instructions please refer to the programming manual
for the QnPHCPUs, Art. no. 149256.
MELSEC System Q Beginners Manual 6 – 11
More Advanced Programming Applied Instructions Reference
Category Instruction Function
Compensation
and conversion
operation
instructions
Polygon
FG
The output value depends on the input value and an user
defined polygon pattern.
Inverted polygon
IFG
Filter
FLT
Samples an input value in specified intervals and calcu
-
lates the average value.
Retentive
SUM
Integrates the input value and outputs the result
Temperature/pressure
compensation
TPC
Performs temperature or pressure compensation for an
input value. The result is output.
Engineering value
conversion
ENG
Converts an input value with the unit % to an output value
with a physical unit.
Engineering value
reverse conversion
IENG
Converts an input value with a physical unit to an output
value with the unit % .
Arithmetic
operation
instructions
Addition
ADD
Arithmetic operations with additional coefficients
Subtraction
SUB
Multiplication
MUL
Division
DIV
Extraction
SQR
Calculates the square root of the input value
Absolute value
ABS
The absolute value of the input value is output.
Comparison
operation
instructions
Compare for „greater
than“
> (GT)
Comparison of to input values with hysteresis
Compare for „less
than“
< (LT)
Compare for „equals“
= (EQ)
Compare for „greater
than or equal to“
>= (GE)
Compare for „less
than or equal to“
<= (LE)
Initial setting of
PID constants
Autotuning
AT1
Automatic determination of the PID constants for a PID
control with the instructions PID or 2PID

Mitsubishi MELSEC System Q Specifications

General

Brand	Mitsubishi
Model	MELSEC System Q
Category	Controller
Language	English