MLFB_PlsPosFw

Description

This function block should be used in the command position path with ascending position. A dedicated comparator pipe block is needed. The Boolean output oPLS is set to TRUE if the position of the comparator has crossed the start position and is set to FALSE if the position has crossed the end position. The function block is executed cyclically. The modulo position is considered. The function block has the possibility to compensate a delay time of the connected device, e .g. glue nozzles.

Arguments

Input

ibExecute	Description	Enable PLS
	Data type	BOOL

iDedicatedCmpID	Description	ID of dedicated comparator
	Data type	DINT

iStartPos	Description	Start position of PLS
	Data type	LREAL

iEndPos	Description	End position of PLS
	Data type	LREAL

iDelayTime	Description	Delay time for compensation
	Data type	TIME

ibForce	Description	Force PLS
	Data type	BOOL

Output

oPLS	Description	Position limit switch
	Data type	BOOL

Example

Timing

ST

//PLSOutput is True when chosen comparator is between 180 and 270 with a T#2ms delay

//Can also force the output to be true with ForceOuput variable
Inst_MLFB_PlsPosFw( EnablePLS, PipeNetwork.COMPARATOR, 180, 270, T#2ms, ForceOutput );
PLSOutput := Inst_MLFB_PlsPosFw.oPLS;

FBD

FFLD

 [Top]