Model Interpretation

AS: Modicon Automation System

B838: 32‑point 24VDC output module

032: 32 output points, high‑density I/O

Technical Parameters

Outputs: 32 channels, 4 groups ×8

Operating Voltage: 24VDC (20.4–28.8VDC range)

Output Current (per point): 0.5A

Group Current (max): 4A per 8‑point group

Module Current (max): 12A total

Output Type: Sink/source selectable (true high)

Leakage Current: ≤1mA @24VDC (OFF state)

Response Time:

OFF→ON: ≤1ms

ON→OFF: ≤1ms

Isolation: Optical coupling, 1500VAC channel‑to‑backplane

Backplane Power: +5V 150mA; +4.3V 1mA

Operating Temp: 0°C to +55°C

Storage Temp: -40°C to +85°C

Humidity: 5%–95% non‑condensing

Weight: ≈1.1kg (2.4lbs)

Dimensions: 50×119×125mm

Origin: France

Interface & Configuration

Backplane: Modicon 800/984 I/O bus

Terminals: Screw terminals (32 outputs, 4 common groups ×8)

Indicators: 32 LEDs (ON when output active)

Fuses: 4× internal non‑replaceable fuses (1 per group)

Wiring: 0.5–2.5mm² copper wires

Terminal Connector: AS‑8534‑000

Core Functions

High‑Density Output: 32 points in single slot for space‑saving system design

Sink/Source Selectable: Compatible with both NPN and PNP sensors/actuators

Fast Switching: 1ms response time for high‑speed applications

Grouped Isolation: 4 isolated groups minimize fault propagation

LED Status: Individual channel LEDs for rapid troubleshooting

Applications

Systems: Modicon 800, 984, 300‑series PLCs

Industries: Automotive, packaging, material handling, general automation

Use Cases: 24VDC relays, solenoids, motor starters, LED indicators, valve actuators

Compatibility

Racks: Modicon 800/984 8/11‑slot backplanes

CPUs: AS‑984B‑128, PC‑E984‑685, AS‑9370‑001

Software: Concept, ProWORX 32, P190