FC6A S
ERIES
MICROS
MART
L
ADDER
P
ROGRAMMING
M
ANUAL
FC9Y-B1726 19-17
19: PID C
ONTROL
I
NSTRUCTION
S1+9 Integral time
Set a value between 1 and 65,535 (0.1 to 6553.5 seconds).
When integral time is 0, integral time is disabled.
R/W
S1+10 Derivative time
Set a value between 1 and 65,535 (0.1 to 6553.5 seconds).
When derivative time is 0, derivative time is disabled.
R/W
S1+11 Derivative gain
Set a value between 0 and 100 (0 to 100%)
Derivative gain of 0 operates as 0% and 101 or higher operates as 100%.
R/W
S1+12 ARW
Set a value between 0 and 100 (0 to 100%)
ARW of 101 or higher operates as 100%.
R/W
S1+13 AT bias
Set a value that satisfies process variable minimum value < (set point - AT bias
setting value) and process variable maximum value > (set point + AT bias
setting value). When a value is set that does not satisfy both conditions listed
above, 133 is stored in the operation status (S1+2).
R/W
S1+14
Output manipulated variable
upper limit/percentage
•When Enable (upper and lower limits)
R/W
Set a value between 0 and 100 (0 to 100%)
Operates as 100 for a value other than 0 to 100.
•When Enable (percentage)
Set a value between 10001 and 10099 (1 to 99%)
Operates as the "Output manipulated variable upper limit" for a value
other than 10001 to 10099.
Output manipulated variable = manipulated variable calculated by the
PIDA instruction x scaling factor
S1+15
Output manipulated variable
lower limit
Set a value between 0 and 100 (0 to 100%)
Operates as 0 for a value other than 0 to 100. Set a value that satisfies
Output manipulated variable lower limit value < Output manipulated variable
upper limit value.
R/W
S1+16
Output manipulated variable
rate of change
Set a value between 0 and 100 (0 to 100%/second)
If not 0 to 100, output manipulated variable rate of change is disabled.
R/W
S1+17
Manual mode output
manipulated variable
Set a value between 0 and 10000 (0.00 to 100.00%). Set a value that
satisfies output manipulated variable lower limit value ≤ manual mode output
manipulated variable ≤ output manipulated variable upper limit value.
When the output manipulated variable limit enable (S3+2) is ON, this
operates as the output manipulated variable lower limit value for a value
other than one between the output manipulated variable lower limit value
and the output manipulated variable upper limit value.
R/W
S1+18
Output manipulated variable
(% value)
Output manipulated variable is stored as a value between -32,768 and
+32,767 (-327.68 to +327.67%).
The output manipulated variable (% value) is unknown while auto tuning is
executing.
For manual mode, the manual mode output manipulated variable value is not
stored.
R
S1+19
Output manipulated variable
(Analog value)
•When Analog Output is specified for the output manipulated variable
R
The S1+1 output manipulated variable (%) undergoes linear conversion in
the range of the minimum and maximum values of the analog output, and
that value is stored.
•When Data Register is specified for the output manipulated variable
The output manipulated variable (%) stored in S1+1 is linearly converted
with the minimum and maximum output values, and the converted value is
stored in S1+19.
S1+20 Proportional band offset
Set a value between -100 and 100 (-100 to 100%)
Proportional band offset of -101 or lower operates as -100% and 101 or
higher operates as 100%.
R/W
S1+21 Control period
Set a value between 1 and 500 (0.1 to 50.0 seconds)
Control period of 0 operates as 0.1 seconds and 501 or higher operates as
50.0 seconds.
R/W
Storage
Destination
Function Setting Details R/W
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