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PACIFIC SCIENTIFIC SCE905AN-002-01
PACIFIC SCIENTIFIC SCE905AN-002-01
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HONEYWELL SC-UCMX01 51307195-175
HONEYWELL SC-UCMX01 51307195-175

YOKOGAWA SCP401-11

  • Product Name:​ ProSafe-RS SIL3 Safety Controller Processor Module
  • Product Introduction:​ Independent safety-layer controller for Safety Instrumented Systems, executing emergency shutdown and interlock logic separate from CP401 process controller.
Category:
Description
  • Technical Specifications:
    • Safety Integrity: SIL3 per IEC 61508/ IEC 61511
    • Processor: 32-bit RISC or dual-core lockstep (platform-dependent)
    • Program Memory: 16 MB safety + 32 MB data (typical)
    • I/O Capacity: Up to 2048 safety I/O points
    • Communication: Vnet/Vnet-IP redundant, Ethernet/IP safety, Modbus RTU, USB-C
    • Power: 24 VDC from redundant supply, max 18 W
    • Operating Temp: -10 to 60 °C
    • Mounting: 35 mm DIN rail with safety lock
    • Dimensions: 90 × 125 × 160 mm, 750 g
    • Certifications: TÜV, ATEX, IECEx, UL1998
  • Functional Features:​ 2-out-of-3 voting on sensor inputs; <50 ms redundancy switch; 100k h MTBDF; one-way data link to process controller; fault comparison and immediate safe state on discrepancy.
  • Application Scenarios:​ Oil & gas ESD, refinery furnace protection, chemical reactor overpressure trip, toxic gas leak isolation, nuclear auxiliary safety.
  • Installation Requirements:​ Dedicated safety earth; isolated from non-safe logic racks; Vnet terminators installed; redundant 24 VDC feed.
  • Usage Notes:​ Never mix safety and non-safety wiring in same tray; firmware download requires TÜV-approved procedure; periodic proof-test per SIL budget.
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