PWM_Creator_FixedCycle (FB)¶

FUNCTION_BLOCK FINAL PWM_Creator_FixedCycle EXTENDS PWM_CreatorBase

Represents a two point controller with pulse width modulation using a fixed cycle width.

Note

If the cycle time given by udiWidthCycleTime can not be divided without remainder by the cycle time of the task calling this FB, the number of ON-cycles is calculated as defined by eRoundingStrategy

InOut:

Scope	Name	Type	Initial	Comment	Inherited from
Input	`xEnable`	`BOOL`		`TRUE`: Activates the defined operation `FALSE`: Aborts/resets the defined operation	LConC
Output	`xBusy`	`BOOL`		`TRUE`: Operation is running	LConC
Output	`xError`	`BOOL`		`TRUE`: Error condition reached	LConC
Input	`lrProportionValue`	`LREAL`		Represents the demanded proportional value for the pwm controller between 0 and 1 If this value is out of range an error is produced.	PWM_CreatorBase
Output	`xOutput`	`BOOL`		Represents the boolean output value	PWM_CreatorBase
Output	`eErrorID`	ERROR	ERROR.NO_ERROR	The current error. Only valid if `xError` is `TRUE`.	PWM_CreatorBase
Input	`udiPWMCycleTime`	`UDINT`		The cycle time in µs
Input Const	`eRoundingStrategy`	RoundingStrategy	RoundingStrategy.round	The strategy being used to deal with the remainder of the PWM-CycleTime divided by the task cycle time calling this FB

Methods:

CleanupAction

CyclicAction

StartAction

Structure: