Panasonic FP Series Programming Manual page 947

Process control instructions
PLC types Availability of F356_PID_PWM (see page 1325)
The period (cycle) of the PWM output is the sampling time Ts (the frequency of
the PWM output is 1/Ts) and the duty is the manipulated value MV in 0.01% units,
e.g. MV = 10000 means a duty of 100%.
Data types
Variable
Run
Control
Parameters
Hold
Parameters
NonHold
ProcessValue
PWM_Output
(see note)
Operands
For
Control
Parameters
Process
Values
Error flags
No. IEC address
%MX0.900.7
R9007
%MX0.900.8
R9008
%MX0.900.11
R900B
Detailed information:
 Set point value SP and the control parameters:
F356_Parameters_NonHold_DUT (see page 949)
 Additional notes on auto-tuning
 The members AT_Progress in F356_Parameters_NonHold_DUT (see page
949) and b1_AT_Complete in F356_Control_DUT (see page 948) are cleared at
the rising edge of the auto-tuning signal.
 When auto-tuning has completed successfully, the element b1_AT_Complete of
F356_Control_DUT (see page 948) is set, and the auto-tuning done code is
stored in the element AT_Progress of F356_Parameters_NonHold_DUT (see
page 949).
When auto-tuning is aborted, the parameters of Kp, Ti, and Td are not changed.

946
Data type
BOOL
F356_Control_DUT (see page
948)
F356_Parameters_Hold_DUT
(see page 948)
F356_Parameters_NonHold_DUT
(see page 949)
INT
BOOL
Relay
- WY WR WL SV
WX WY WR WL SV
- WY WR WL SV
Set
permanently
for an instant
permanently
 Control conditions: F356_Parameters_Hold_DUT (see page 948)
Function
Start condition
Control data
PID control parameters
Manipulated value MV, additional control
mode area, auto-tuning related area and
working area
Process value (-30000–30000)
Pulse-width modulated output (optional,
instead of manipulated value output)
T/C Register Constant
EV DT LD FL
EV DT LD FL
EV DT LD FL
If
 any parameter of
F356_Parameters_NonHold_DUT is out
of range
 the area specified with UpperLimit or
LowerLimit is out of range
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