question

Craig DIckson avatar image
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Craig DIckson asked Jason Lightfoot commented

Conveyor decision point stop and delay: can it use accel / decel?

When a conveyor conveyor decision point has its arrival trigger set to "stop item and delay", it appears that the conveyor acceleration is not used: the item just goes immediately from full speed to stopped in zero, and then after the delay from stopped to full speed in zero time. Is there a way to make the item accelerate (and maybe decelerate) on the conveyor? I don't want to use a motor because there are other items elsewhere on the same conveyor that should not stop, and the conveyor has multiple places where the item could stop.

FlexSim 20.2.3
flexsim 20.2.3conveyorsdecision points
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Joerg Vogel avatar image
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Joerg Vogel answered Joerg Vogel commented

Currently this is only a feature of a transfer wether exit or entry. And this means you have to insert a conveyor section in your system.

You can extend the location to a full stop by a repeating stop and go mechanism implemented by a delayed repeated message mechanism. Each message let the item stop longer and travel shorter in alternating occurrences until a full stop should happen.

Another bogus deceleration could you implement by delayed message initiating a stop. You set the conveyor item invisible from the time the event occurs until a drawsurrogate item has fulfilled a kinematic deceleration to the point on the conveyor where you have stopped the conveyor item. Then you set the conveyor item visible again and delete the drawsurrogate.

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Jason Lightfoot avatar image
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Jason Lightfoot answered Joerg Vogel commented

The legacy basic conveyor did this but it didn't have decision points. Can you not use multiple conveyor sections ?

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