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proximity sensors

2 articles tagged “proximity sensors”.

Flat vector wiring diagram of a 4-wire PNP proximity sensor connected to a PLC digital input module showing brown, blue, black and white wire connections
proximity sensorsplc wiringsensor wiring

4-Wire Proximity Sensor Wiring to a PLC

A 4-wire proximity sensor gives you both a NO and NC output from one body. Learn exactly how to wire each output type to your PLC input module, with real gotchas.

Aug 6, 2026 · 9 min read

Flat vector diagram comparing an inductive proximity sensor detecting a metal gear and a capacitive proximity sensor detecting a plastic container, both wired to a PLC input module
proximity sensorsplc wiringsensor selection

Inductive vs Capacitive Proximity Sensors: Full Guide

Inductive and capacitive proximity sensors look identical but detect completely different targets. Learn the key differences, typical specs, and wiring rules for PLC integration.

Aug 5, 2026 · 9 min read

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