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ICS Triplex T9431
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ICS Triplex T9451
ICS Triplex T9451

ICS Triplex T9431

Manufacturer:​ Rockwell Automation (ICS Triplex)
Product Introduction:​ Part of the Trusted® Triple Modular Redundant (TMR) safety system, the T9431 acquires field analog signals (4–20 mA / 0–10 V DC) with three independent input circuits per channel and majority voting logic. Designed for SIL 3 safety-instrumented functions such as ESD, F&G, HIPPS in oil & gas, power, and chemical plants.
Category:
Description
Key Technical Specifications:
  • Input Channels:​ 8 isolated channels (configurable)
  • Input Types:​ 4–20 mA (2-/3-/4-wire), 0–10 V DC (single-ended or differential)
  • Resolution:​ 16-bit ADC
  • Accuracy:​ ±0.1% Full Scale (typical)
  • Update Rate:​ 50 ms/channel; all channels scanned in <120 ms
  • Isolation:​ 1500 V AC channel-to-channel and field-to-logic; 500 V DC typical system isolation
  • CMRR:​ >120 dB @ 50/60 Hz
  • Diagnostics:​ Open/short circuit detection, out-of-range monitoring, online health reporting, continuous self-test
  • Hot-Swap:​ Yes — replaceable without system shutdown
  • Backplane Bus:​ Trusted® TMR high-speed bus (≈50 Mbps)
  • Power Supply:​ 24 V DC (18–32 V range) via backplane, surge protected
  • Operating Temp.:​ -40 °C to +70 °C
  • Humidity:​ 5–95% RH non-condensing
  • Safety Certification:​ IEC 61508SIL 3, TÜV, ATEX/IECEx Zone 2, cFMus Class I Div 2, CE/UL 61010-1
  • MTBF:​ >250,000 hrs (FMEDA verified)
  • Enclosure:​ Rack-mounted in Trusted® TMR chassis, conformal coated option available
Application:​ Emergency Shutdown Systems (ESD), Fire & Gas (F&G), High Integrity Pressure Protection (HIPPS), turbine & burner management.
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