Product parameters

Model: AS-521P-001

Manufacturer: Schneider Electric (Schneider Electric)

Series: Modicon Compact (Classic Medium-sized PLC)

Number of Input Points: 16 discrete inputs

Input Type: 24VDC sink (leakage type) / source (source type) compatible

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

Input Current: Approximately 7mA / point @ 24VDC

Logic "1": ≥11VDC

Logic "0": ≤5VDC

Response Time: ≤10ms (on / off)

Isolation Strength: Channel - Bus 1500Vrms/1min; Group - Bus 1500Vrms/1min

Power Consumption: Approximately 1.2W (power supply from backplane)

Operating Temperature: 0℃ to + 60℃

Storage Temperature: -40℃ to + 85℃

Humidity: 5%–80% (no condensation)

Weight: Approximately 0.40kg

Certifications: CE, UL, CSA Product Specifications

Structure: Standard 1 slot, metal casing, plug-in installation

Protection functions: Overvoltage protection, reverse connection protection, channel fault self-check

Diagnostic indications: Channel status LED, power/fault LED indication

Interfaces: Special backplane connector, plug-and-play

Protection level: IP20 (anti-object contact)

Dimensions (width × height × depth): Approximately 25mm × 120mm × 115mm Series

It belongs to the Schneider Modicon Compact series (a classic medium-sized PLC, emphasizing high reliability, high-density I/O and convenient maintenance, suitable for medium-scale automation systems). Characteristics

16-point high-density input: Single module with 16 24VDC inputs, saving rack space, suitable for high-density I/O configuration.

Wide voltage compatibility design: 19.2–30VDC wide voltage range, compatible with industrial 24V power supply fluctuations, suitable for global scenarios.

Channel-level electrical isolation: 1500Vrms isolation, anti-electromagnetic interference, ensuring signal stability and reducing common ground interference risks.

Fast response and diagnosis: ≤10ms high-speed response, LED real-time display of channel status, quickly locating faulty channels.

Industrial-grade reliability: Operating temperature range of 0–60℃, metal casing anti-vibration, suitable for harsh industrial environments.

Seamless compatibility with Compact rack: Standard 1-slot design, fully matching Modicon Compact series CPU / power supply, easy installation.

Applications

Provide 16 24VDC discrete inputs for the Modicon Compact PLC system, collecting signals from on-site buttons, limit switches, proximity switches, etc.

Build high-density, high-reliability input circuits, suitable for automation scenarios with high requirements for signal acquisition stability.

Replace old non-isolated input modules, upgrade system anti-interference capability, reduce the risk of signal mis-triggering.

Application fields

Manufacturing: Automotive production lines, machine tool control, packaging machinery, electronic assembly lines.

Process industry: Chemicals, water treatment, food and beverage, pharmaceutical production lines.

General automation: Warehouse logistics equipment, textile machinery, HVAC, building control systems