FB_AxisPlsPosNoModulo

 Function Block - Used for any position of a non-modulo axis in both directions.

Inputs

Input	Data Type	Range	Unit	Default	Description
ibExecute	BOOL	FALSE, TRUE	N/A	No default	Enable PLS.
iPosition	LREAL				Any position of a non-modulo axis.
iStartPos	LREAL				Start position of PLS.
iEndPos	LREAL				End position of PLS.
iDelayTime	TIME				Delay time for compensation.
iHysteresis	LREAL				Hysteresis.
ibForce	BOOL	FALSE, TRUE	N/A	No default	Force PLS.

Outputs

Output	Data Type	Range	Unit	Description
oPLS	BOOL	FALSE, TRUE	N/A	Position limit switch.

Remarks

• The Boolean output oPLS is set to:
  • TRUE if the position has crossed the start position.
  • FALSE if the position has crossed the end position.
• The function block has the possibility to compensate a delay time of the connected device (e.g., glue nozzles).
• It is possible to define a hysteresis for switching on and off of the PLS.

Timing

Hysteresis

FBD Language Example

FFLD Language Example

IL Language Example

Not available.

ST Language Example

//PLSOutput is True when position input is between 180 and 270 with a T#2ms delay
//Can also force the output to be true with ForceOuput variable
//Hysteresis is on for 3 user units in case direction changes around start point

Inst_FB_AxisPlsPosNoModulo( EnablePLS, ActualPosition, 180, 270, T#2ms, 3, ForcePLS );

PLSOutput := Inst_FB_AxisPlsPosNoModulo.oPLS;