the following image show the situation I'm dealing with:
The coating machine processes products in a batch of 6, which takes 60 minutes. Afterworths the products go to the inspection machine, where the products are inspected for any malfunctions. (20% of the products are not ok and go to in a rework queue)
These products have to be re-coated, which takes only 40 minutes if the whole batch of 6 consists of re-coating products only (so no mixing of both re-coating and coating products).
I assign a label on the product when they exit the conveyor:
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Label([servicetime], i) := mins(60)
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Label([servicetime], i) := mins(40)
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Label([servicetime], first(c))
Thanks in advance,
Benjamin