Wiring 3 — Wire a Photoeye Sensor to %I0.0

Briefing

A retro-reflective photoeye detects objects by bouncing an IR beam off a reflector. When the beam is broken (object present), the output opens. The sensor has the standard 3-wire connection: - **BN (Brown)** — +24 V supply - **BU (Blue)** — 0 V common - **BK (Black)** — digital output signal → PLC input Wire the photoeye to **%I0.0**.

Objectives

• Wire photoeye BN to +24 V supply
• Wire photoeye BU to 0 V common
• Wire photoeye BK signal to PLC %I0.0
• Wire output LED1 indicator to PLC %Q0.0

I/O Table