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ICS Triplex T9451
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ICS Triplex T9431
ICS Triplex T9431
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Atlas Copco TC-4000-P-PB-ES
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ICS Triplex T9451

Product Name:​ ICS Triplex T9451 Trusted TMR Analog Output Module
Manufacturer:​ Rockwell Automation (ICS Triplex)
Product Introduction:​ TMR analog output module providing triple-redundant 4–20 mA outputs with 2oo3 voting to drive final control elements (e.g., emergency isolation valves, control valves) in SIL 3 safety loops.
Category:
Description
Key Technical Specifications:
  • Output Channels:​ Typically 8 channels (model-dependent)
  • Output Type:​ 4–20 mA DC (sourcing), triple-voted per channel
  • Load Capability:​ ≤750 Ω @ 20 mA
  • Accuracy:​ ±0.1% of span (typical)
  • Resolution:​ 16-bit DAC
  • Response Time:​ <50 ms step change
  • Diagnostic Coverage:​ >99%; open-circuit load detection, over-current protect, module health monitoring
  • Isolation:​ Channel-to-system and inter-channel reinforced isolation (≥500 V AC)
  • Hot-Swap:​ Yes
  • Backplane:​ Trusted® TMR chassis
  • Supply:​ 24 V DC (18–32 V) via backplane
  • Operating Temp.:​ 0 °C to +60 °C (extended -40 to +70 on coated units)
  • Certification:​ IEC 61508 SIL 3, CE, UL, ATEX/IECEx
  • Installation:​ Insert into Trusted TMR I/O rack; occupies one slot
Application:​ Safety-critical analog actuations — ESD valve positioning, burner fuel ramp-back, SIS-controlled setpoint writes.
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