Emerson VS3202 SLS1508

  • Product Name:​ DeltaV SIS Redundant Safety Logic Solver (SLS 1508)
  • Product Introduction:​ Dual-CPU redundant logic solver for Emerson DeltaV Safety Instrumented System; executes SIL 3 safety functions independent of basic process control.
  • Technical Specifications:
    • Model aliases: VS3202, KJ2201X1-BA1, SLS1508
Category:
Description
    • Safety: IEC 61508 SIL 3
    • I/O: 16 digital inputs (24 VDC dry/active), 16 relay outputs (2 A/250 VAC)
    • CPU: dual redundant synchronized processors
    • Communication: SISnet, Modbus, TCP/IP, RS232/485, HART capable via I/O
    • Supply: 24 VDC ±20%
    • Temperature: −40 to +70 °C
    • Protection: IP20, DIN/rack mount
  • Functional Features:​ 1:1 redundant solver, online diagnostics, fail-safe output de-energize, IEC 61131-3 programming (LD/FBD/ST), seamless switchover.
  • Application Scenarios:​ Emergency shutdown, fire & gas, turbine protection, oil & gas, power, chemical SIS.
  • Structural Features:​ Rack-mounted solver pair occupying DeltaV SIS slots, separate safety power feed.
  • Working Principle:​ Field sensors → SIS input → dual CPU voted logic → SIS output → final element; on CPU fault partner continues with no process disturbance.
  • Installation Requirements:​ Dedicated safety earth, shielded field cables, separate 24 VDC safety power, cabinet temp within range.
  • Usage Notes:​ Must not be used as plain PLC; periodic proof test required; firmware/configuration must match SIL certificate.
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