Conveyor and Decision point

Question

question

Lucas asked Mar 5, '24 Jeanette F commented Mar 11, '24

Conveyor and Decision point

decision-pint-and-when-is-blocked-to-another-one-1 (3).fsmI have created this model but you can see that until the photocell is blocked, some covers enter and I would like the one that blocks the photocell to immediately stop and go the next way, so that no more ones enter until it is released.

Software Version:

FlexSim 24.0.0

photo eye

decision-pint-and-when-is-blocked-to-another-one-1.fsm (48.2 KiB)

· 1

Jeanette F ♦♦ commented · Mar 11 at 04:24 PM

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0 ·

Answer 1 · 2024-03-05T17:47:45Z

Kavika F answered Mar 5, '24

Hey @Lucas, lets take a look at the On Continue trigger you have in your decision point (DP).

You have 3 actions right after another to send items to specific photo eyes depending if the others are blocked or not. The last one is to send items to outObjects[1], which is the first lane.

The logic it seems you're trying to implement is a "round-robin" kind of logic. You should setup more DPs that can keep track if certain lanes are occupied or not. You can also setup a label on your DP to keep track of which lane it just sent an item to and then switch lanes.

So, if you put a label on the DP,

then remove your other triggers and add an On Arrival trigger with the following code,

Conveyor.DecisionPoint current = ownerobject(c);
Object item = param(1);
Conveyor conveyor = param(2);
Conveyor.Item conveyorItem = conveyor.itemData[item];

{ //************* PickOption Start *************\\
/***popup:Conveyor_SendItem*/
/**Send Item*/

if (/**\nCondition: *//***tag:condition*//**/true/**/) {
  /**\nDestination: */
  treenode newDest = /***tag:destination*//**/current.outObjects[current.SendToLane]/**/;
  Conveyor.sendItem(item, newDest);
  current.SendToLane = (current.SendToLane + 1) % 4;
  if (current.SendToLane == 0) {
    current.SendToLane += 1;
  }
}
} //******* PickOption End *******\\

you should see the DP send items to lanes in a "Round Robin" fashion.

decision-pint-and-when-is-blocked-to-another-one-1_1.fsm

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decision-pint-and-when-is-blocked-to-another-one-1.fsm (48.2 KiB)