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ICS Triplex

Rockwell ICS Triplex T8431 Analog Input Module
SKU: T8431
In stock: 12
Description

Description

The ICS Triplex T8431 is a 24Vdc analogue input module for Trusted TMR systems, offering 40 fully triplicated channels with high‑accuracy current and voltage measurement, fast update rates, and robust isolation for safety‑critical applications.

Specifications

  • System Supply Voltage Range: 20–32 Vdc
  • Number of Inputs: 40 channels
  • User‑Defined Thresholds: 4‑off
  • Input Current Range: 0–22 mA
  • Input Voltage Range: 0–6 Vdc
  • Sample Update Time: 0.5 ms
  • Resolution: 3.9 µA (1/256 mA)
  • Safety Accuracy: ±1% of full scale
  • Calibration Accuracy: 0.03%
  • Calibration Interval: Recommended every 2 years
  • Circuit Type: Fault‑tolerant, fully triplicated with optional line monitoring
  • Fusing: None (external if required)
  • Intrinsic Safety: External barrier
  • SOE Event Resolution: 1 ms
  • SOE Time‑Stamp Accuracy: ±0.5 ms
  • Field Common Isolation: ±250 Vdc sustained, ±2.5 kVdc maximum
  • Channel Crosstalk: −40 to −60 dB
  • Power Consumption: 15–18 W
  • Self‑Test Interval: 2 minutes
  • Operating Temperature: −5°C to 60°C (23°F to 140°F)
  • Non‑operating Temperature: −25°C to 70°C (−13°F to 158°F)
  • Temperature Change Rate: 0.5°C/min
  • Operating Humidity: 10–95% RH non‑condensing
  • Dimensions: 266 mm × 31 mm × 303 mm
  • Weight: 1.149 kg (2.5 lbs)
  • Real‑Time Clock Resolution: 100 µs

Features

  • Triplicated Fault‑Tolerant Design: Ensures high‑integrity analogue signal acquisition
  • High‑Accuracy Measurement: 3.9 µA resolution with ±1% safety accuracy
  • Fast Response: 0.5 ms update time for real‑time control
  • Robust Isolation: ±250 Vdc sustained isolation for field common
  • SOE Precision: 1 ms resolution and ±0.5 ms timestamp accuracy
  • Low Crosstalk: −40 to −60 dB channel‑to‑channel isolation
  • Long Calibration Interval: 2‑year recommended calibration cycle
  • Industrial Durability: Wide temperature and humidity tolerance

FAQ – Common Questions

  • What does the T8431 do: It acquires analogue current and voltage signals for Trusted TMR systems.
  • How many channels does it support: 40 fully triplicated analogue input channels.
  • What ranges does it measure: 0–22 mA and 0–6 Vdc.
  • How accurate is it: 3.9 µA resolution with ±1% safety accuracy.
  • Does it support SOE logging: Yes, with 1 ms resolution and ±0.5 ms timestamp accuracy.