NPN vs PNP Sensors: Sinking, Sourcing and How to Wire Them
What NPN and PNP outputs mean, how they match sinking and sourcing input cards, and how to wire 3-wire and 2-wire DC sensors.
Sensors
Cómo funciona: Sensores inductivos, capacitivos, fotoeléctricos y ultrasónicos
A practical comparison of inductive, capacitive, photoelectric and ultrasonic sensors: how each one detects a target, where it works well and how to pick a replacement.
Cómo funciona: Sensores inductivos y capacitivos
Inductive sensors detect metal; capacitive sensors detect almost anything. Learn how each works, how to choose, and how sensing distance, mounting and target material affect detection.
