CS 581 · Nuclear Cybersecurity · Fall 2026
Nuclear Plant System Architecture
Select a system to explore its security characteristics, Purdue zone, and workshop module affinities. Annotate this diagram incrementally across all nine workshops.
Corp. Level 4 Site Ops · L3 Super- visory Level 2 Control Level 1 Field Level 0 — SEPARATION BOUNDARY / AIR GAP — — sensors · actuators · instruments · final elements — one-way export Syslog / OPC-UA Security events Historian events OPC-UA historian Analog + Modbus Access interlocks data diode ▸ (status only) Modbus / OPC-UA Modbus TCP Serial / hardwired replaces → ICT-SIEM Enterprise Security Mon. RMS Radiation Monitoring OT-SIEM OT Security Mon. PSI Physical Security PPC Process Computer Historian L3 → L2 bridge DCS Digital Control System SMR I&C Integrated I&C Platform collapses L1/L2 EMERGING RPS Reactor Protection TCS Turbine Control SFPCM Spent Fuel Pool Cooling & Mon. EDGC Emergency Diesel Gen.
↑ Select any system node to explore its security characteristics and workshop module affinities
Safety-critical
Operational / BOP
Monitoring / Security
Emerging architecture
Data diode (one-way)
Bidirectional interface