Schneider 140ERT85410 Multifunction Digital Input Module

Overview

The Schneider 140ERT85410 is a multifunction digital input module from the Modicon Quantum series. It features 32 isolated digital inputs with 1 ms timestamp resolution. Engineers use this module for Sequence of Events (SOE) and event logging in distributed control systems. It supports DCF77 radio signal synchronization, ensuring accurate time-stamped data. With configurable debounce filters and group isolation, the module fits high-integrity applications. Although Schneider discontinued it in 2012, many legacy systems still depend on its precision and performance.

Technical Specifications

General Information

• Product Series: Modicon Quantum

• Model Number: 140ERT85410

• Function: Time-stamped digital input module

• Mounting: Quantum backplane

• Module Format: Standard

Input Capabilities

• Input Channels: 32 isolated digital inputs

• Channel Groups: 2 groups of 16

• Clock Signal Input: 1 input at 24 VDC

• Voltage Range: 24 VDC to 125 VDC

• Input Types: Optically isolated

• Switching Levels:

• 24 V @ 6 mA

• 48 V @ 2.5 mA

• 60 V @ 2.5 mA

• 125 V @ 1 mA

• Debounce Filter: 0–255 ms, configurable

• Input Inversion: Configurable

• Acquisition Time: 1 ms

• Timestamp Resolution: 1 millisecond

Power and Consumption

• Power Consumption: 7.5 W (process inputs)

• Bus Current: 300 mA @ 5 VDC

• Clock Input Current: 5 mA

• External Power Per Group: 3 mA

• Auxiliary Consumption: 0.07 mA @ 24 VDC (with 140XCP90000)

Connectivity and Cabling

• Cable Types:

• Shielded: up to 600 m

• Unshielded: up to 400 m

• Terminals: Screw terminal block

Indicators and Diagnostics

• Status LEDs:

• 1 green (bus communication)

• 1 green (self-test OK)

• 1 red (fault)

• 32 green (input status)

Time Synchronization

• Protocol: DCF77 radio signal

• Purpose: Synchronize event timestamps across systems

Environmental Limits

• Operating Temperature: -20°C to +60°C

• Storage Temperature: -40°C to +85°C

• Relative Humidity: 95% non-condensing

• Altitude: Up to 5000 m

• Protective Coating: TC

Electromagnetic and Safety Compliance

• ESD Protection:

• 4 kV contact (IEC 801-2)

• 8 kV air (IEC 801-2)

• EM Field Resistance: 10 V/m (IEC 801-3)

Product Lifecycle

• Discontinued: July 31, 2012

• End of Service: December 31, 2021

• Replacement: BMXERT1604T (M340/X80 SOE module)

Packaging Details

• Package Type: PCE

• Units per Package: 1

• Dimensions: 31.5 × 16.5 × 5 cm

• Weight: 0.45 kg