SIL Verification — in the cloud, not in Excel
Platform for functional safety engineers. PFDavg, RRF, SFF, HFT — per IEC 61508 and IEC 61511. Automated GOST-compliant reports.
Interface mockup
Why Excel is a Risk
Formula Errors
One wrong cell reference — and PFDavg is incorrect. Without automatic validation, errors stay hidden until the audit.
No Version Control
Who changed the formula? When? Why? Excel cannot track the history of calculation changes.
No Collaboration
One file — one engineer. Parallel work on different SIFs by the team is impossible.
Manual Report Generation
Copying data from spreadsheets to Word, formatting per GOST — hours of routine work for each facility.
Complete Functional Safety Lifecycle
From hazard analysis to operation — in a single platform
HAZOP
Hazard and Operability Study
soonLOPA
Layer of Protection Analysis
soonSIL Verification
Safety Integrity Level Verification
SRS
Safety Requirements Specification
soonOperations
SIS Lifecycle Management
soonSIL Verification
Automated Safety Integrity Level calculation per IEC 61508-6
5 Architectures
1oo1, 1oo2, 2oo2, 2oo3, 1oo2D — all redundancy configurations
Complete Calculation
PFDavg, RRF, SFF, HFT check — per IEC 61508-6 Annex B formulas
Equipment Catalog
Enter element data once — reuse across all projects in your organization
GOST Reports
Automated .docx report generation — ready to submit to clients and regulatory bodies
Try It Now
Simplified PFDavg calculator — calculate safety level online
Dangerous undetected failure rate
Result
PFDavg
2.19e-3
RRF
456.6
SIL Level
Simplified calculation for demonstration. Full IEC 61508-6 calculation with β, MTTR, PTC — in Safety Chain.
Standards Compliance
Formulas and criteria — directly from normative documents
IEC 61508
Functional Safety of E/E/PE Safety-Related Systems
PFDavg formulas from Part 6 Annex B, SFF tables from Part 2
IEC 61511
Functional Safety — Safety Instrumented Systems for the Process Industry
HFT table from Part 1, SIL Verification requirements
GOST R IEC 61508
Identical translation of IEC 61508
Direct compliance — all formulas and tables are identical
GOST R 27.012
Hazard and Operability Study (HAZOP)
Methodology for the HAZOP module
Solution Comparison
| Safety Chain | exSILentia | Excel | |
|---|---|---|---|
| Cloud Solution | |||
| Russian Interface | |||
| IEC 61508 Compliance | Depends on formulas | ||
| GOST Reports | Manual work | ||
| Collaboration | |||
| Audit Trail | |||
| Equipment Catalog | |||
| Cost | Affordable | $15,000+ | Free |
Who It's For
Oil & Gas
Refineries, gas processing plants, petrochemical complexes, pipeline transport
Chemical Industry
Chemical plants, hazardous material storage facilities
Energy
Power plants, nuclear facilities, energy assets with SIS
Engineering Firms
Design institutes and engineering companies performing SIL calculations for clients
Pricing
Enterprise
- On-premise deployment
- 1C integration
- SCADA/DCS integration
- Dedicated manager
- Team training
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