Tagsight vs spreadsheet-only I/O workflow
Tab-per-document Excel workbooks are fine on a single skid project. The trouble starts at the second revision. Tabs drift apart, cross-document consistency cracks, and the file becomes a weekly reconciliation exercise nobody owns.
At a glance · Cross-document consistency
Single source-of-truth tag set. Instrument index, I/O list, line list, equipment list all derive from the same extracted data.
Tabs drift apart over revisions. The same tag appears with different descriptions or signal classes in different documents.
Read one of your own drawings.
Drop a P&ID, instrument index, or schedule. Tagsight reads it to the tag and opens a workspace you keep when you sign in.
PDF · DWG · DXF · TIFF · PNG · XLSX
Comparison.
| Axis | Tagsight | Alternative |
|---|---|---|
| Cross-document consistency | Single source-of-truth tag set. Instrument index, I/O list, line list, equipment list all derive from the same extracted data. | Tabs drift apart over revisions. The same tag appears with different descriptions or signal classes in different documents. |
| Revision management | Two extracted revisions compared in one click. Deltas exported as MOC-ready Excel. | Manual cell-by-cell comparison. Common to miss tag adds or moves. |
| Export targets | Native exports to TIA Portal XML, Rockwell L5X, PLCCreator, DEXPI, JSON, plus annotated PDF. | Hand-built exports per target system. High error rate at the spreadsheet-to-PLC boundary. |
Cross-document consistency
Single source-of-truth tag set. Instrument index, I/O list, line list, equipment list all derive from the same extracted data.
Tabs drift apart over revisions. The same tag appears with different descriptions or signal classes in different documents.
Revision management
Two extracted revisions compared in one click. Deltas exported as MOC-ready Excel.
Manual cell-by-cell comparison. Common to miss tag adds or moves.
Export targets
Native exports to TIA Portal XML, Rockwell L5X, PLCCreator, DEXPI, JSON, plus annotated PDF.
Hand-built exports per target system. High error rate at the spreadsheet-to-PLC boundary.
When this is the right call.
- Project has more than one document that depends on the tag set
- Tag set will be re-used across drawing revisions
- Project needs to export to a control system without manual re-typing
When it is not the right call.
- One-off I/O list for a small skid where Excel will be the final document
FAQ.
Can I keep my existing Excel I/O list and just import it.
Yes. Tagsight ingests an existing Excel I/O list, normalizes signal classes, and lets you cross-reference it against newly extracted P&ID drawings. Match, new, missing, and disagreement buckets surface automatically.