IDEC MICROSmart FC6A Series Ladder Programming Manual page 428

19: PID C I
ONTROL NSTRUCTION
Storage
Destination
S3+6 Cascade Control Mode Active
S3+7 PV Tracking
S3+8 Kp Dependent
S3+9 Derivative
S3+10 Derivative Decay
S3+11 PID Inhibit
S3+12 PID Control Inhibit Monitor
Derivative Action Execution
S3+13
Monitor
Control Output (Output Manipulated
S3+14
Variable (MV) Digital Value)
S3+15 to
— Reserved —
S3+31
19-38
Function
Changes to 1 (ON) while PIDD instruction is in Cascade Control
Mode.
Changes to 0 (OFF) when the mode is not Cascade Control Mode.
0 (OFF): PV tracking disabled
1 (ON): PV tracking enabled
0 (OFF): Kp dependent
1 (ON): Kp independent
0 (OFF): Derivative enabled
1 (ON): Derivative disabled
0 (OFF): Derivative decay enabled
1 (ON): Derivative decay disabled
0 (OFF): PID operation
1 (ON): PID inhibited
Changes to 1 (ON) when PID control is temporarily stopped, such
as when PID control parameters are changed or when PID control
is inhibited.
Changes to 1 (ON) while executing the derivative action.
Changes between 1 (on) and 0 (off) according to the control
period and output manipulated variable.
FC6A S MICROS
ERIES MART
Setting Details
—
L P M
ADDER ROGRAMMING ANUAL
R/W
R
R/W
R/W
R/W
R/W
R/W
R
R
R
—
FC9Y-B1726
Modifiable
during
Execution
—
Yes
Yes
Yes
Yes
Yes
—
—
—
—