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PID loop `PID`

Moves Output to bring the Process Variable to the Setpoint.

1

PVGlobal.TankLevel42.0CVGlobal.ValveOut20.8SP 50.0EN 1MAN 0LIM 0

Tag	After two scans
Kd	0
Ki	0.5
Kp	2
LevelSP	50
OutMax	100
OutMin	0
PidAction	0
PidManual	0
PidManualOut	20.8
PidUpdateMs	100
PvMax	100
PvMin	0
TankLevel	42
ValveOut	20.8

Operands

Operand	Data type	Read or write
PV	DINT, REAL	Reads
Setpoint	DINT, REAL or a number	Reads
Output	REAL	Writes
Manual	BOOL	Reads
Manual out	REAL	Reads and writes
Kp	DINT, REAL or a number	Reads
Ki	DINT, REAL or a number	Reads
Kd	DINT, REAL or a number	Reads
Out min	DINT, REAL or a number	Reads
Out max	DINT, REAL or a number	Reads
PV min	DINT, REAL or a number	Reads
PV max	DINT, REAL or a number	Reads
Update ms	DINT or a number	Reads
Action	DINT or a number	Reads

Common mistakes

Using learning software to control a real processPractise with a simulated process. Check the PID configuration and feedback before changing its tuning.