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Siemens 6ES7321-1BH02-0AA0 Digital Input Module

Siemens 6ES7321-1BH02-0AA0 Digital Input Module

Siemens 6ES7321-1BH02-0AA0 Digital Input Module

  • Item NO.:

    6ES7321-1BH02-0AA0
  • Market Price:

    $120
  • Product Origin:

    Germany
  • Color:

    NEW
  • Product weight:

    0.01KG
  • Lead Time:

    In stock

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  •  
  • Siemens 6ES7321-1BH02-0AA0 | SM 321 Digital Input Module

    Manufacturer: Siemens
     
    Model: 6ES7321-1BH02-0AA0
     
    Series: SIMATIC S7-300 (SM 321)
     
    Type: 16‑channel isolated digital input module for PLC
     
    Status: Original new, in stock, 12‑month warranty

    Specifications

    • Number of Inputs: 16 (opto‑isolated, group‑wise)
    • Rated Input Voltage: 24 V DC (20.4–28.8 V DC range)
    • Signal Thresholds:
      • “0”: −30 V to +5 V
      • “1”: +13 V to +30 V
    • Input Current (Signal 1): ~7 mA (typical)
    • Input Delay: 1.2–4.8 ms (fixed, non‑configurable)
    • Backplane Current: 5 V DC, max. 10 mA
    • Power Dissipation: 3.5 W (typical)
    • Connector: 1 × 20‑pin
    • Dimensions (W×H×D): 40 × 125 × 120 mm
    • Weight: ~0.25 kg
    • Operating Temperature: 0 °C to +60 °C
    • Certifications: CE, UL, RoHS; IEC 61131 Type 1 compliant

    Key Features

    1. 16 Isolated Inputs: Optocoupler isolation between channels and backplane; group‑wise isolation for noise immunity.
    2. 24 V DC Compatibility: Direct interface with standard sensors, proximity switches, and pushbuttons.
    3. Fast Response: 1.2–4.8 ms delay for real‑time signal capture.
    4. Status LEDs: Per‑channel LED indicators for quick diagnostics.
    5. Compact Design: 40 mm width, fits standard S7‑300 racks.
    6. Sink/Source Compatible: Works with both NPN (sink) and PNP (source) sensors.

    Applications

    • S7‑300 PLC Systems: Expansion of digital input capacity in control racks.
    • Factory Automation: Signal acquisition from limit switches, photoelectric sensors, and safety interlocks.
    • Process Control: Monitoring of 24 V DC discrete signals in industrial plants.
    • Machine Tools: Input for start/stop, emergency stop, and position feedback signals.

 

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