MODICON AS-BADU-204

Description

• Module Type: Analog Input Module
• Channels: 4 independent channels
• Input Signal Types: Configurable — ±500 mV (2-wire sensors), PT100 (4-wire RTD), 0–20 mA, 4–20 mA, 0–10 V, -10 V to +10 V
• A/D Conversion: Dual-slope integrating ADC, 12-bit resolution
• Accuracy: ±0.1% FS or higher
• Isolation Voltage: 1500 Vrms (channel-to-channel, enhancing EMI immunity)
• External Power Required: 24 VDC @ 250 mA (if not supplied, the module draws from the internal bus and produces erroneous readings)
• Operating Temperature: 0 °C to 55 °C (some sources: -20 °C to +60 °C)
• Relative Humidity: 5% to 95%
• Protection Rating: IP20 or higher
• Dimensions: 70 mm × 100 mm × 60 mm
• Weight: approx. 0.2 kg
• Mounting: DIN rail or Modicon Compact rack
• Interface: Phoenix terminal connection, supports shielded twisted-pair wiring (e.g., Belden 9418)

• Dual-slope integrating A/D conversion for accurate data acquisition
• Per-channel independent configuration for flexible signal type selection
• Channel-to-channel isolation for strong anti-interference capability
• LED indicators: green LED for module ready/data transmission; red LED for open current loop or high loop impedance (>500 Ω) detection
• Supports Modbus RTU/ASCII communication protocols

• Process control: monitoring and control of temperature, pressure, flow parameters
• Petrochemical: monitoring and controlling various process parameters
• Power: monitoring and control of power systems
• Metallurgy: process control in the metallurgical industry
• Building automation and manufacturing production line control

• Requires external 24 VDC power (250 mA); failure to provide this results in erroneous readings
• Signal cables must use shielded twisted-pair wiring, grounded only at the module end to avoid crosstalk
• Route signal cables away from motors, transformers, and other strong EMI sources; cross布线 at right angles when crossing
• DIN rail mountable for convenient control cabinet installation