OrderedCollection

The tracker process unit components are responsible for tracking of material on behalf of the process units. The tracker process units are responsible for material transactions, run transactions, time allocation and data acquisition transaction related to the process units.

The OrderedCollection tracker process unit is a real time tracker process unit designed for continuous tracking where the order of materials in the TPU is significant. This means that materials can only be moved out of the process the same order as they entered the process. Typical applications of OrderedCollection are pipes, silos and tanks. In ordered collection, materials can not be referenced by ID for movement out of the tracker process unit. The only material that can leave the TPU is the one that is next in the queue. When material is to be moved out of the TPU, the amount of material to move is specified, and the OrderedCollection components itself decides which actual material entities to move.