8125-DI-DC

Overview

The MTL Eaton 8125-DI-DC is a 32‑Channel Digital Input Module designed for 24 V DC non‑isolated sourcing applications. It provides configurable filtering, pulse counting, and diagnostic features for reliable signal acquisition in industrial automation systems.

Lifecycle

• Status: Active

Input Specifications

• Channels: 32, discrete input

• Maximum Voltage: As per bussed field power

• Latch: User‑defined enable/disable

• Pulse Counting: High/low selectable

• Filtering: Fast (22 ms), Slow (258 ms), or user‑defined (2–512 ms in 2 ms steps)

• Input OFF Threshold: < 1.2 mA

• Input ON Threshold: > 2.1 mA

• Wetting Current: 8.6 mA typical

• Minimum Pulse Width: 250 μs

• Max Switching Frequency: 500 Hz

• Response Time (max): User‑defined

Indicators & Diagnostics

• LED Indicators: Power, fault, 32 × channel status

• Line Fault Detection: Short circuit < 100 Ω, Open circuit < 50 pA

Isolation

• Channel to Channel: None

• Channel to Railbus: 250 V AC

Power Supply

• Bussed Field Power Required: 190 mA, 18–30 V DC

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