1. Checking a component at an assembly position
An assembly fixture can present an opaque component at the installed sensing position and send its PNP signal to external sequencing logic. The optical sensing function reports the presented target, while commissioning checks actual surface remission, working distance and placement tolerance against the documented sensing range. The controller samples the resulting state after the fixture settles before requesting the next machine operation.
Problem Solved
A target-present signal gives external sequencing logic a component-position condition, helping coordinate the following assembly operation after the expected part reaches the monitored fixture location.
Fixture position
Reflected-light signal
PNP
2. Counting separated components passing a fixed point
A feed track can move separated opaque components through the optical sensing zone and supply PNP transitions to an external counter. Setup checks actual target remission, distance, spacing and transit speed against the documented sensing range, response time and switching frequency. The installed geometry gives each component a distinct optical presentation so that counting logic can recognize successive passages.
Problem Solved
Distinct target passages provide external counting logic with component events, helping track separated parts moving through one fixed sensing point without mechanical contact.
Part counting
Response timing
PNP
3. Timing material occupancy at a feed chute
A feed chute can present its expected opaque material surface within the sensing range and send the PNP state to external timing logic. The controller measures how long material remains at the monitored point and compares that duration with the feed sequence. Commissioning checks representative material surfaces, installed distance and the unloaded chute condition to establish a distinct material-present signal.
Problem Solved
A sustained material signal gives external timing logic an occupancy reference, helping distinguish brief passages from material that remains at the monitored feed-chute position.
Chute occupancy
External dwell timer
PNP
