Hi,
I made it possible to change the variable to photo-eye on the conveyor as shown below, and it passes when it is 0 and stops when it is 1. But is this far from happening repeatedly? The decision point variable changes to 0 > 1 > 0, but it stops working.
In the OnClear of the photoeye you need to resume the item (if there is one) at DP1. The triggers by default only evaluate once - they don't listen to label value changes or get called repeatedly on some loop. This is how discrete event simulation works and makes it fast/efficient to execute.
In the attached model I've modified the triggers to store the stoppedItem and resume it.
I'm working on building two conveyor into one. One of them is the main line and the other is the auxiliary line. So I want to pull it out of the main line and when all the main line items are exhausted, I want to pull them out one by one from where they stopped. What's the best way?
So something like this?
Items on the second incoming conveyor are stopped if any items from the main conveyor are between the two Photo Eyes. In the Uncover trigger of the second PE I check if there is an item waiting on the incoming conveyor. If this is the case and the zone is now empty, that item is resumed.
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