AS-521P-011Modicon Compact Series – 16‑Point 24VDC Digital Input Module
May 30, 2026

AS-521P-011Modicon Compact Series – 16‑Point 24VDC Digital Input Module

Product Description AS‑521P‑011 is a high‑density digital input module for Schneider Electric’s Modicon Compact PLC family. It collects 24VDC signals from field switches/sensors, features channel‑level isolation and diagnostics, and fits the standard Compact backplane.

Description

Specifications

Model: AS‑521P‑011

Manufacturer: Schneider Electric

Series: Modicon Compact (discontinued)

Input Points: 16 discrete inputs

Input Type: 24VDC sink/source compatible

Rated Voltage: 24VDC (19.2–30VDC wide range)

Input Current: ~7mA per channel @24VDC

Logic ‘1’: ≥11VDC

Logic ‘0’: ≤5VDC

Response Time: ≤10ms (on/off)

Isolation: Channel‑to‑bus 1500Vrms/1min; group‑to‑bus 1500Vrms/1min

Power Consumption: ~1.2W (backplane powered)

Operating Temperature: 0°C to +60°C

Storage Temperature: −40°C to +85°C

Humidity: 5%–80% (non‑condensing)

Weight: ~0.40kg

Certifications: CE, UL, CSA

Features

16‑point high‑density input saves rack space in high I/O count systems.

Wide voltage tolerance (19.2–30VDC) accommodates industrial 24V supply fluctuations.

Channel‑level isolation (1500Vrms) enhances noise immunity and reduces ground‑loop risks.

Fast response & diagnostics (≤10ms) with per‑channel LED status for quick troubleshooting.

Industrial‑grade reliability with metal housing and vibration resistance for harsh environments.

Seamless Compact rack compatibility (1‑slot form factor) for easy integration with Modicon Compact CPUs and power supplies.

Applications

Manufacturing: Automotive lines, machine tools, packaging, electronics assembly.

Process Industry: Chemical, water treatment, food & beverage, pharmaceutical.

General Automation: Logistics, textile machinery, HVAC, building control systems.


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