Header row
Formatted, frozen, with set column widths so the sheet scrolls cleanly on long registers.
SIL calculation Excel template.
A SIL verification calculation register 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, target SIL, achieved SIL, average probability of failure on demand (PFDavg), risk reduction factor (RRF), voting architecture (1oo1, 1oo2, 2oo2, 2oo3), and proof-test interval.
SIL verification calculation template with 14 columns covering SIF tag, hazardous event, demand mode, target SIL, achieved SIL, PFDavg, RRF, voting architecture, sensor / logic-solver / final-element references, MTTR, proof-test interval, proof-test coverage, and common-cause beta factor. Pre-formatted with frozen header, auto-filter, and 48 blank rows. Free .xlsx download.
By Tagsight Team·Published Jun 23, 2025·Reviewed Jun 4, 2026
Format.xlsxColumns14Rows48 blankOpens inExcel · Sheets · LibreOffice
sil-calc-template.xlsx·SIL calculation
SIF
Target
Achieved
PFDavg
Voting
Test Int
6 / 48 rows shown·14 columns total+ 8 columns →
| Step | Manual template fill | Tagsight extraction |
|---|---|---|
| Open calculation report | Manual review per SIF | Upload report PDF |
| Re-type SIF data | Hand transcription | Auto-parsed from report |
| Verify target vs. achieved | Manual comparison | Per-row column flagged on gap |
| Preserve voting architecture | Manual notation | 1ooN preserved as drawn |
| Track proof-test interval | External spreadsheet | Per-row column for audit prep |
| Compile IEC 61511 evidence | Manual package assembly | Direct evidence-package export |
Every column, defined.
14 columns mapped to how a sil verification calculation is issued on a real project. Dropdown columns enforce values; free-text columns let house notation preserve as drawn.
#ColumnTypeDescription
01SIF TagTextSafety instrumented function identifier
02Hazardous EventTextHazard the SIF protects against
03Demand ModeListLow demand, High demand, Continuous
04Target SILListSIL 1, SIL 2, SIL 3, SIL 4
05Achieved SILListSIL 1, SIL 2, SIL 3, SIL 4
06PFDavgTextAverage probability of failure on demand
07RRFTextRisk reduction factor (1 / PFDavg)
08Voting ArchitectureList1oo1, 1oo2, 2oo2, 2oo3
09Sensor ElementsTextSensor tag references
10Logic SolverTextLogic solver tag reference
11Final ElementsTextFinal element tag references
12MTTRTextMean time to restore (hours)
13Proof Test IntervalTextMonths between proof tests
14Common-Cause βTextCommon-cause beta factor fraction
What ships in the file.
Worked example
One filled row shows the format for every column so the schema is clear before the engineer starts typing.
Auto-filter
Enabled on every column. Pivot by any field without a single formula.
48 blank rows
Pre-formatted and ready to paste into. Extends without breaking the dropdown or filter range.
Enforced dropdowns
Categorical columns (priority, signal class, status, type) enforce values so the register stays clean.
Cross-tool
Plain .xlsx. Opens cleanly in Excel, Google Sheets, and LibreOffice. No macros, no add-ins.
No tracking
No signup, no email gate, no telemetry inside the file. Download, edit, ship.
Quiet signoff
A single mint-italic line at the bottom: Drag a source document at tagsight.io to fill this automatically. Easy to delete.
Tagsight reads the source document, extracts every row, and returns the same 14-column schema this template defines. Type, tag, vendor, model, and per-row metadata are populated from the document itself.
Scanned binders, CAD-exported PDFs, and image scans all work. House conventions, vendor-specific forms, and dialect-specific tag schemes read as drawn.