Model Interpretation

• AS: Modicon Automation System

• B827: 32‑point DC input module (true‑high, 4×8 groups)

• 000: Standard 24VDC, 32 points, 4×8 fused groups, basic diagnostics

Technical Parameters

• Inputs: 32 channels, 24VDC nominal (true‑high/source)

• Logic: True‑high (PNP, +24VDC = ON)

• Operating Voltage: 20–28VDC (continuous); max 30VDC

• Input Current: 6mA typical @24VDC (wetting current)

• ON Threshold: ≥15VDC; OFF Threshold: ≤5VDC

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

• Response Time: ≤1ms (ON/OFF)

• Backplane Power: +5V 100mA; +4.3V 1mA

• External Power: 24VDC ±4%, 70mA (excluding sensors)

• Operating Temp: 0°C to +55°C

• Storage Temp: -40°C to +85°C

• Humidity: 5%–95% non‑condensing

• Weight: ≈1.04kg (2.3lbs)

• Dimensions: 50×119×125mm

• Origin: France

Interface & Configuration

• Backplane: Modicon 800/984 I/O bus

• Terminals: Screw terminals (32 inputs, 4 commons; 8 points per group)

• Indicators: LED per channel (ON when active)

• Fuses: 4× field‑replaceable fuses (one per 8‑point group)

• Filter: 8ms fixed input filter (anti‑chatter)

• Wiring: 0.5–2.5mm² copper wires

• Terminal Connector: AS‑8534‑000

Core Functions

• High‑Density 24VDC Input: 32‑point true‑high input for PNP sensors, pushbuttons, limit switches

• Grouped Fault Isolation: 4×8 fused groups enable individual group fault detection and replacement

• Optical Isolation: Reduces electrical noise and ground loops

• Status Visibility: Individual LEDs for quick channel state checks

• Noise Filtering: 8ms filter to eliminate contact bounce

Applications

• Systems: Modicon 800, 984, 300‑series PLCs

• Industries: Material handling, packaging, automotive, general automation

• Use Cases: Proximity sensors, photoeyes, pushbuttons, relay contacts