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plc sensors

2 articles tagged “plc sensors”.

Flat vector diagram showing PNP and NPN proximity sensor wiring connections to a PLC input module with labeled wire colors and current flow arrows
proximity sensor wiringplc sensorspnp npn wiring

Proximity Sensor Wiring to a PLC: Full Guide

Learn how to wire 2-wire, 3-wire and 4-wire proximity sensors to a PLC input. Covers PNP and NPN types, color codes, sinking vs sourcing inputs, and common wiring mistakes.

Aug 5, 2026 · 9 min read

Flat vector diagram of an IO-Link master connecting four sensors to a PLC over PROFINET, showing process data flow on each sensor cable
io-linkindustrial protocolsplc sensors

IO-Link Explained: How It Works with Your PLC

IO-Link turns a standard sensor cable into a two-way digital channel. This guide explains how the protocol works, how masters connect to your PLC, and what you actually gain on the plant floor.

Jul 22, 2026 · 9 min read

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