ZPA states

ZPA state

Description

Empty

There is no material to be conveyed in the zone and there is no more material arriving from the upstream zone.

Entering

Zone is empty, but material is arriving from the upstream zone.

Occupied/ongoing

There is material in the zone that is transported towards the downstream zone.

Occupied/accumulate

There is material in the zone and is accumulated.

FlexZone

The FlexZone function is active for the zone as the length of the material is longer than the downstream zone.