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fiz asked Jason Lightfoot answered

Rectifying my agv process flow

Hi, my agv process flow logic was build, based on @Felix Möhlmann , example of simple agv sim model logic which can be found here: Link


When the simulation runs for an hour, it seems to be working fine, however when i ran the simulation for 6 days, this part of the process flow which initially can only contain 9 tokens (as there are 9 agv) starts behaving weirdly and having more tokens than expected (more than 9). i am trying to find out why this occur when i ensured that the tokens created are carefully manage as at any point of time there can only be 9 token or less in this agv parking process flow.
1723528607101.pngwhy is there more than one token created when the simulation is run much longer? how can i rectify this?


Sim Model

FlexSim 23.1.0
agv process flow
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1 Answer

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Jason Lightfoot answered

The simplest way to fix this will be to disable the AGV Back Orders 'Unique Pullers Only' option.

1724100288006.png

When you have two puller requests that use the same puller value, unless this is left unchecked, both tokens will be listening to the same backorder fulfilment - which results in multiple tokens being released as soon as (in your case) one agv is pushed to the list.


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