question

Harrison Hart avatar image
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Harrison Hart asked Raja Sekaran commented

How to pick up multiple items in coordinated task sequence.

I am making a model at the moment which requires a transporter to pick up four flowitems at once and transport them to a combiner. I have gotten my coordinated task sequence to work using a single flowitem however I cant figure out how to pick up the 4 items created by the separator in one trip.

A second question I have regarding this model, is it possible to then make the TASKTYPE_TRAVEL following this loading operation go to 1 of 2 assembly areas (combiners) based on availability?

FlexSim 16.2.0
task sequencecoordinated task sequenceload multiple itemload multiplecoordinated task sequences
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Jeff Nordgren avatar image Jeff Nordgren commented ·

If the answers already given are not sufficient to answer your question, it would be easier to do if you sent in your model or a sample of your model. Looking at your model will make it much easier to give a better detailed answer.

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1 Answer

Brandon Peterson avatar image
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Brandon Peterson answered

Harrison,

Here is your last model with some changes so that the Queue creates a coordinated TS (Task Sequence) to move all four items at once. Here are the changes that I made:

  • Changed the inter-arrival time on the source to be 0 so that a box would always be there
  • Removed the Message and Exit triggers on the combiner
    • They were not necessary for the example
    • They were not working - I believe that this was because you were sending the message to a non-existent center object instead of current in the send message pick list option
  • Added an Entry trigger to the queue to set a label called "TSCount" to the remainder of the input divided by 4
    • This will cause every fourth item to have a value of 0
  • Changed the UseTransport trigger
    • Added code at the start to skip the task sequence code for all of the items except the fourth
    • Added/Changed the Load and Unload portions of the task sequence so that it would correctly load all four items that needed to be moved and would not attempt to move items that were already being moved by another TS

I hope this answers your question for you,

Brandon


cots-example-4-item-at-once-v2016-1-2-mv-1.fsm (23.7 KiB)
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