question

Haggai N avatar image
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Haggai N asked Joerg Vogel commented

Queue Holding

Is it possible for me to hold the flowitems in a queue for a period of time after 20 items flows into the queue?

For example, a show can only starts when there are 20 customers.

FlexSim 17.2.5
queuestatistics collectordelayhold
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1 Answer

Joerg Vogel avatar image
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Joerg Vogel answered Joerg Vogel commented

You close the output of the Queue in OnEntry Trigger

green plus icon Control > Close and Open Ports

  • Action: closeoutput
  • Object: current
  • Condition :
content(current) < 20

You add another template through the green plus icon in the template editor at same trigger.

Control > Close and Open Ports

  • Action: openoutput
  • Object: current
  • Condition :
content(current) >= 20
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Joerg Vogel avatar image Joerg Vogel commented ·

If you need the condition gets fulfilled only at special times you add a label at the queue and evaluate the label value in the condition. 

content(current) <= 20 || myAddedLabelName == 1

You change the label value to 1 whenever you don't want that the minimum content hasn't any effect. If the minimum content must be evaluated you set label to a value different to 1.

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