What it is and where it sits
The XUYFNEP40015: Lifecycle stage is recorded as current, so a BOM line can still be specified directly rather than routed to last-time-buy or broker channels. Fork-style photoelectric sensors are used for label, edge, or part-presence detection on conveyors and packaging lines, where the emitter and receiver are pre-aligned across a fixed gap and the target breaks the beam as it passes through the slot.
