Directly move an item to/from the conveyor through codes or process flows

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Donghuang L3 asked Feb 16, '23 Donghuang L3 commented Feb 16, '23

Directly move an item to/from the conveyor through codes or process flows

Hi, I am building a model that automatically generates objects through user command codes. I need to implement a process that moves a box item from an arbitrary non-conveyor location to a conveyor, and also from a conveyor to an arbitrary non-conveyor location.

I realized that it requires Conveyor Transfer objects for the item to enter/exit the conveyor. However, because I am auto-generating the model, the Conveyor Transfer objects cannot be created through codes.

Is there a way that I can directly move an item to/from the conveyor through codes or process flows --- preferably without creating Conveyor Transfers? (E.g., a single command like transfernodeobj)

Software Version:

FlexSim 22.2.2

conveyor conveyor transfer

Answer 1 · 2023-02-16T16:50:51Z

Jason Lightfoot answered Feb 16, '23 Donghuang L3 commented Feb 16, '23

You can stop an object on a conveyor and move it off without a transfer - the point is it should have no events scheduled when you remove it.

You can also use a single transfer (side transfer along the length of the conveyor) to put any item onto a conveyor at any position (you just need to set the x location when you move it).

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Donghuang L3 commented · Feb 16, 2023 at 06:22 PM

Thank you Jason. Is there any way to create a Conveyor Transfer to a conveyor just by codes? (e.g., by createinstance(), without connecting the conveyor to another other object)

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Jason Lightfoot ♦ Donghuang L3 commented · Feb 16, 2023 at 07:25 PM

Yes but uses a function_s call that might not be supported in the future, so put it in a user command rather than littering your mode with function_s calls.

This code will also size the transfer to the whole length of the conveyor:

Conveyor conv=Model.find("StraightConveyor1");
Object transfer=function_s(conv,"addEntryTransfer");  //or create, connect and destroy a queue
double convlen=conv.getProperty("HorizontalLength");
treenode convPoint=transfer.find(">variables/transferPoint/1+");
setsdtvalue(convPoint,"isAtSide",1);
setsdtvalue(convPoint,"distAlong",convlen/2);
setsdtvalue(convPoint,"rangeWidth",convlen);
setsdtvalue(convPoint,"distOffCenter",-0.5);
function_s(conv,"finalizeSpatialChanges");

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Donghuang L3 Jason Lightfoot ♦ commented · Feb 16, 2023 at 08:18 PM

Thank you Jason -- just tested this approach and it works great.

(Hope it will still be available through function_s or alternative approaches in future versions)

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