Schneider 140ERT85420 Multifunction Input Module

The Schneider 140ERT85420 is a high-performance Multifunction Input Module developed for the Modicon Quantum automation platform. It is designed to handle a wide range of analog input signals—including voltage, current, resistance, and thermocouple types—making it an ideal choice for industrial applications where precision, versatility, and diagnostics are essential.

This module offers high-resolution signal processing, channel-level configurability, and advanced diagnostics, ensuring it can efficiently process input from a broad spectrum of field instruments. Its support for hot-swapping, electrical isolation, and flexible configuration makes it suitable for mission-critical applications in industries such as oil & gas, chemical processing, utilities, and advanced manufacturing.

Engineered for high-density I/O racks, the 140ERT85420 minimizes panel space while offering the flexibility to handle multiple sensor types, reducing the need for separate modules and streamlining system design.

Product Specifications

Applications

The Schneider 140ERT85420 module is ideal for data acquisition in complex control environments where multiple sensor types must be monitored and processed reliably.

• Oil & Gas Industry

  Measures real-time temperature, pressure, and flow data in hazardous zones and refineries.

• Chemical & Pharmaceutical Manufacturing

  Supports high-accuracy readings from thermocouples and RTDs for process quality control.

• Energy and Utilities

  Monitors voltage and current inputs from meters and transducers for power management systems.

• Water & Wastewater Treatment

  Reads analog signals from pH sensors, flow meters, and temperature probes for process regulation.

• Food & Beverage Automation

  Handles mixed signal inputs for environmental monitoring in production facilities.

• Machine Control and Factory Automation

  Integrates seamlessly with sensors and PLCs in automated production lines.

Product Advantages

• Versatile Input Compatibility

  Accepts voltage, current, resistance, and temperature sensor signals on a single module, reducing hardware complexity.

• High-Precision Measurement

  16-bit resolution enables accurate signal acquisition across a broad input range.

• Built-in Diagnostics and Indicators

  Visual channel-level diagnostics simplify commissioning and troubleshooting.

• Electrically Isolated Channels

  Each input is protected with 1500 Vrms isolation to prevent damage from transients and ground loops.

• Hot Swappable Design

  Allows for replacement or upgrade without shutting down the control system, improving uptime.

• Backplane Efficiency

  Compact footprint fits into Quantum racks without occupying excessive panel space.

Frequently Asked Questions (FAQ)

1. What systems is the 140ERT85420 compatible with?

It is designed for use with Schneider’s Modicon Quantum PLC systems and integrates with Unity Pro and EcoStruxure platforms.

2. Can this module read thermocouples and RTDs?

Yes, it supports multiple thermocouple types (J, K, T, etc.) and resistance-based RTDs.

3. How many channels does the module support?

It can handle 8 differential or 16 single-ended channels, offering flexibility in wiring and sensor distribution.

4. Is the module hot-swappable?

Yes, it can be inserted or removed without shutting down the system.

5. Does it provide diagnostic feedback?

Yes, each input channel has built-in diagnostics and LED indicators to monitor signal and status.

6. What is the resolution of the module?

It features 16-bit resolution, ensuring high-accuracy analog-to-digital conversion.

7. What input signal types are supported?

It supports voltage (±10 V), current (0–20 mA, 4–20 mA), resistance (RTD), and thermocouple inputs.

8. What kind of isolation does the module offer?

It provides 1500 Vrms isolation between input channels and the system backplane.

9. Can this module be used in hazardous environments?

Yes, it is certified for use in industrial environments and supports ATEX compliance.

10. What software is used for configuration?

The module is compatible with Schneider’s Unity Pro and EcoStruxure Control Expert software suites.