Independent Protection vs System Integration
Use one-way data diodes and network segmentation to share operational data with the BPCS while preserving SIS independence.
CyberTRIZ analysis · Seveso contradiction FS014 · one of 8,235 worked contradictions published by CyberTRIZ.AI
Regulations
Business Context
Functional safety requires Safety Instrumented Systems to remain
sufficiently independent from the Basic Process Control System (BPCS).
Modern digital plants, however, increasingly integrate operational data
to improve monitoring, diagnostics, and asset management.
The Contradiction
Greater independence improves functional safety.
Greater system integration improves operational visibility.
Why It Exists
Sharing information enhances operational decision-making, but excessive
integration may compromise the independence required for reliable safety
functions.
Direction
Maintain functional independence while allowing secure data exchange
through controlled interfaces, network segmentation, and one-way
communication architectures where appropriate.