SIL calculation to Excel.
A SIL verification calculation is the IEC 61511 functional safety document that compares the target SIL for each safety instrumented function (SIF) against the achieved SIL of the as-designed sensor, logic solver, and final element architecture. One row per SIF tag carries the hazardous event, demand mode (low demand, high demand, continuous), target SIL, achieved SIL, average probability of failure on demand (PFDavg), risk reduction factor (RRF), voting architecture (1oo1, 1oo2, 2oo2, 2oo3), the sensor and logic-solver and final-element references, mean time to restore (MTTR), proof-test interval, proof-test coverage (PTC), and common-cause beta factor. The SIL verification feeds the IEC 61511 audit evidence package.
Upload a SIL verification calculation report and extract every safety instrumented function into a structured spreadsheet. SIF tag, hazardous event, demand mode, target SIL, achieved SIL, PFDavg, RRF, voting architecture, MTTR, and proof-test interval all read into the columns the functional-safety engineer and the IEC 61511 auditor expect.
| SIL | PFDavg range (low demand) | Risk reduction factor |
|---|---|---|
| SIL 1 | 1.0e-1 to 1.0e-2 | 10 to 100 |
| SIL 2 | 1.0e-2 to 1.0e-3 | 100 to 1,000 |
| SIL 3 | 1.0e-3 to 1.0e-4 | 1,000 to 10,000 |
| SIL 4 | 1.0e-4 to 1.0e-5 | 10,000 to 100,000 |
Fields extracted.
Every column the sil verification calculation typically carries is read and shaped into a structured row. Missing fields stay blank, never invented.
- SIF tag
- Hazardous event
- Demand modelow demand / high demand / continuous
- Target SIL
- Achieved SIL
- PFDavg
- Risk reduction factor (RRF)
- Voting architecture1oo1, 1oo2, 2oo2, 2oo3
- Sensor element references
- Logic solver reference
- Final element references
- MTTRmean time to restore
- Proof test interval
- Proof test coveragePTC fraction
- Common-cause beta factor
- Notes
Export targets.
The extracted data ships in the format your team picks up and uses directly.
- .xlsxExcel workbook (SIL register)
- .csvCSV
- .xlsxIEC 61511 compliance evidence package
From legacy file to clean register.
Common questions.
Does this produce a new SIL determination?
No. Tagsight extracts the as-issued SIL verification: target SIL, achieved SIL, PFDavg, RRF, voting architecture per SIF. The determination calculation itself (LOPA, fault tree, Markov modelling) stays in your validated process-safety package; the extracted register is the input to the periodic-review step, not the determination itself.
Are exida, exSILentia, and SIS-PRO calculation outputs supported?
Yes. Reports from exida exSILentia, SIS-PRO, Sphera SafeTech, and TUV Rheinland calculation tools all read into the same canonical column shape. Tool-specific notation (component reliability database references, mission-time assumptions) preserves in a tool-source column.
Can the compliance evidence package feed the IEC 61511 audit?
The evidence package carries per-SIF target SIL, achieved SIL, voting architecture, proof-test interval, and the calculation source reference. The IEC 61511 audit also requires the SIF list, the cause-effect matrix, and the SIS subset of the P&ID - all extracted from the same workspace if the source drawings are in scope.
Convert your file.
Upload a sil verification calculation in any format, get every row read, every column shaped, every reference preserved, then export the workbook your team uses next.