MLFB_PlsTimeFw

 Function Block - Forward/backward Position/Time range indicator.

Inputs

Input	Data Type	Range	Unit	Default	Description
ibExecute	BOOL				Enable PLS.
iDedicatedCmpID	DINT				ID of the dedicated comparator.
iStartPos	LREAL				Start position of PLS.
iOnTime	TIME				Time the PLS is on.
iDelayTime	TIME				Delay time for compensation.
ibForce	BOOL				Force PLS.

Outputs

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

Remarks

• 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 has crossed the start position.
    • A timer with iOnTime must be started.
  • When the timer has expired the output is set to FALSE.
• 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).

Timing

FBD Language Example

FFLD Language Example

IL Language Example

Not available.

ST Language Example

//PLSOutput is True when chosen comparator passes 180 for 3 seconds a T#2ms delay

//Can also force the output to be true with ForceOuput variable

Inst_MLFB_PlsTimeFw( EnablePLS, PipeNetwork.COMPARATOR, 180, T#3s, T#2ms, ForceOutput );
PLSOutput := Inst_MLFB_PlsTimeFw.oPLS;