BX950MI-GR SCHNEIDER

BX950MI-GR SCHNEIDER analog module

Product  Description：

Schneider Electric analog modules are specialized input/output (I/O) expansion devices designed to interface Programmable Logic Controllers (PLCs) and Programmable Automation Controllers (PACs) with continuous field signals. Unlike digital modules that process binary on/off states, analog modules convert continuously variable physical measurements—such as voltage, current, temperature, and pressure—into digital data for the controller, and vice versa.

These modules integrate into Schneider's key PLC families, including the Modicon TM3 series (for M221, M241, M251 PLCs) and the Modicon X80 series (for M340 and M580 PACs).

Technical Parameters and Specifications

• Channel Density: Available in 2, 4, 8, or 16 channels per module depending on the model series.

• Analog Input Signal Types:

  • Voltage: 0 to 10 V, -10 to +10 V, 1 to 5 V

  • Current: 0 to 20 mA, 4 to 20 mA

  • Temperature Sensors: Thermocouples (Types J, K, T, N, R, S, B) and Resistance Temperature Detectors (Pt100, Pt1000, Ni100, Ni1000)

• Analog Output Signal Types: 0 to 10 V, -10 to +10 V, 0 to 20 mA, 4 to 20 mA

• Resolution: 12-bit, 15-bit + sign, or 16-bit analog-to-digital (ADC) / digital-to-analog (DAC) resolution.

• Accuracy: Measurement precision ranges from +/-0.1% to +/-0.3% of full scale at 25°C.

• Conversion Time: Fast sampling times ranging from 1 ms to 10 ms per channel based on filter settings and channel configuration.

• Galvanic Isolation: High isolation voltage between channels, field power, and the backplane bus (typically 500 V AC to 1500 V AC).

• Operating Temperature: Standard range from -10°C to +60°C, with extended temperature options available for harsh environments.

• Supply Voltage: Powered via the PLC backplane or an external 24 V DC power supply.

Key Product Advantages

• High Precision and Signal Stability: Built-in signal conditioning and high resolution deliver precise control and measurement even in noisy industrial settings.

• Flexible Software Configuration: Individual channels can be configured independently via EcoStruxure software (Machine Expert or Control Expert) for different signal ranges without needing hardware jumpers.

• Advanced Diagnostics: Integrated diagnostics detect open-wire circuits, short circuits, out-of-range signals, and internal module faults, reducing troubleshooting time.

• Hot-Swapping Capability: Select module series (such as Modicon X80 on M580 systems) support hot-swapping (RIOP - Removal and Insertion Under Power), allowing replacement without stopping the main process.

• Compact Footprint: High-density channel designs save space on DIN rails inside control cabinets.

Installation Precautions and Guidelines

• Wiring and Shielding: Always use twisted-pair shielded cables for analog signal wiring. Ground the cable shield at one end only (typically at the control cabinet side) to prevent ground loops.

• Cable Separation: Route analog input/output cables in separate conduits or wire ducts away from high-voltage AC power lines, motor drive cables, and switching inductive loads.

• Power Supply Quality: Use a clean, regulated 24 V DC power supply with low ripple voltage to power loop-powered transmitters and analog modules.

• Cold Junction Compensation: For thermocouple inputs, ensure proper Cold Junction Compensation (CJC) parameters are configured in the engineering software to maintain measurement accuracy.

• Hot-Swapping Rules: Verify whether the specific module series supports hot-swapping before removing a live module to prevent backplane damage or system trips.

Target Applications

• Process Industry: Continuous monitoring and control of flow, pressure, temperature, and level in water/wastewater treatment, chemical processing, and oil and gas facilities.

• Machine OEM Equipment: Precise speed control for variable frequency drives (VFDs) and positioning control for proportional hydraulic valves in packaging, printing, and textile machinery.

• Building Automation and HVAC: Monitoring air quality, humidity, room temperatures, and controlling damper actuators in commercial HVAC systems.

• Energy Management: Interfacing with power transducers, load cells, and environmental sensors to track plant-wide energy efficiency and operational health.

The structure and details of the product：

Our services：

Shipping Port:  China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

Warranty: one year

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