The Schneider Electric BMXART0414 is an analog input module for the Modicon X80 (M340) platform, providing 4 isolated low-level inputs optimised for temperature measurement. It supports RTD probes, thermocouples, resistors, and voltage inputs, with 16-bit sigma-delta ADC conversion and 15-bit plus sign resolution.

Technical specifications:

• Commercial reference: BMXART0414
• Manufacturer: Schneider Electric
• EAN: 3595863910186
• Series / range: Modicon X80
• Product type: Analog input module
• Number of analog inputs: 4, isolated
• Input level: Low level
• Electrical connection: 40 terminals, 1 connector
• ADC type: Sigma-delta, 16-bit
• Resolution: 15 bits + sign
• Voltage input ranges: 40 mV, 80 mV, 160 mV, 320 mV, 640 mV, 1.28 V
• Resistor input ranges: 400 Ohm and 4000 Ohm (2-, 3-, or 4-wire)
• RTD probes: Pt100, Pt1000 (IEC and UL/JIS), Ni100, Ni1000, Cu10
• Thermocouples: B, E, J, K, L, N, R, S, T, U
• Input overload: 7.5 V
• Common mode rejection: 120 dB at 50/60 Hz
• Differential mode rejection: 60 dB at 50/60 Hz
• Cold junction compensation: External via Pt100 probe
• Nominal reading cycle time: 400 ms (RTD), 200 ms (thermocouple)
• Temperature drift: 25-30 ppm/C depending on sensor type
• Isolation voltage: 1400 V DC (channel to bus), 750 V DC (channel to channel), 750 V DC (channel to earth)
• Recalibration: Internal
• Open-circuit detection: Yes, all sensor types
• MTBF: 1,400,000 hours
• Current consumption: 150 mA at 3.3 V DC; 40 mA at 24 V DC
• Operating temperature: 0…60C
• Storage temperature: -40…85C
• Relative humidity: 5…95% at 55C, non-condensing
• Vibration resistance: 3 gn
• Shock resistance: 30 gn
• Weight: 0.135 kg

Features and benefits:

• Supports a wide range of RTD probes and thermocouple types for flexible temperature sensing across process applications
• Full channel-to-channel and channel-to-bus isolation up to 1400 V DC protects the backplane from sensor-side faults
• Open-circuit detection on all sensor types enables fast fault diagnostics without additional hardware
• Per-channel green diagnostic LEDs plus system RUN, ERR, and I/O LEDs give immediate visual status at the module
• Internal recalibration and first-order digital filtering ensure stable, accurate readings over the full operating range

Applications:

• Process temperature monitoring in industrial automation panels using Modicon M340 PLCs
• Multi-point RTD or thermocouple acquisition in HVAC, energy, and utilities plant control
• Low-level voltage and resistance measurement in machine control and test systems
• High-accuracy temperature control loops requiring isolated, individually diagnosed input channels

Part of the Schneider Electric Modicon X80 range.

Also known as: Schneider BMXART0414, Schneider Electric BMXART0414, Modicon M340 analog temperature input module, X80 RTD thermocouple input module.