Brownfield drawings into structured data.
Scanned P&IDs, single-line diagrams, loop diagrams, and instrument datasheets read into structured documents. The I/O list, equipment list, line list, and valve list in your tag convention. No CAD source. No manual redrawing.
A drawing package that aged unevenly.
A brownfield project starts with a drawing package that was authored years or decades ago and has aged unevenly. Some sheets are clean CAD exports. Some are scans of the original paper drawings, faded, folded, and stamped with revision notes added after the fact. Some are photos a field engineer took of the wall in the operations building. The tag convention is whatever the facility has used since commissioning, which may or may not match any published standard.
The job is to turn that package into the same set of structured documents a greenfield project would produce in the engineering phase: an I/O list to size the controllers, an equipment list to bound the scope, and a line list to coordinate with piping. The conventional path is a junior engineer with a spreadsheet, a printed copy of the drawings, and three to four weeks of transcription.
Tagsight collapses the transcription. The drawing package uploads to a workspace. Vector PDFs read fastest because the tag text resolves directly off the page; scans are read at high resolution; photo uploads are deskewed and run as inputs. Every row carries the source-page reference. You review and confirm each row, jumping back to the source page in two clicks to edit inline. The exports run on the reviewed data, in the tag convention the drawings were authored in.
From drawing package to reviewed export.
- 01UploadThe drawing package uploads to a workspace.
- 02ReadVector PDFs read fastest because the tag text resolves directly off the page; scans are read at high resolution; photo uploads are deskewed and run as inputs.
- 03ReviewEvery row carries the source-page reference. You review and confirm each row, jumping back to the source page in two clicks to edit inline.
- 04ExportThe exports run on the reviewed data, in the tag convention the drawings were authored in.
What comes out.
| Code | Deliverable | Contains | Formats |
|---|---|---|---|
| I/O | I/O list | Tag number, instrument type, signal class, description, equipment owner, line number, source-page reference. | TIA Portal XML · Studio 5000 L5X · PLCCreator CSV · DEXPI XML · Excel · CSV |
| EQ | Equipment list | Equipment tag, type, description, and the instruments mounted on each item. Pumps, vessels, tanks, exchangers, columns, drums, fans, filters, strainers, package skids. | Excel · CSV |
| LN | Line list | Pipe line numbers with nominal size, line spec, service, from / to equipment, and source page. | Excel · CSV |
Every drawing age, read the same way.
Drawings are read at high DPI so even legacy 1990s scans resolve clearly. Every row carries the source-page reference; you review and confirm each row before export, editing inline when needed. The exports always use the reviewed data, never the raw extraction.
JPG and PNG images go through the same pipeline as scans. A sharp, well-lit, straight-on photo of the full sheet works the same as a scan; the photo path is useful for drawings that never made it into the EDMS.
Revisions compare, not just extract.
Upload both revisions as separate projects, then use the Revision Comparison tool to see added, removed, and modified instruments side by side. Comparison history is saved as an audit trail on the facility, and the Change Report exports to Excel for the panel shop.
A 50-page scanned set typically finishes within an hour including the review pass. Vector PDFs run faster because the tag text reads directly off the page.
Tag conventions, kept as drawn.
ISA 5.1 alongside KKS, IEC 81346, NORSOK, JIS, GOST, ISO 14617, DIN 19227, NEN-EN, and operator-house dialects. In-house letter codes a facility has used since commissioning are preserved as drawn.
Common questions
What is brownfield drawing digitization?
How does Tagsight handle scanned drawings?
Can I compare an old drawing to a revised version?
What tag standards does Tagsight read on legacy drawings?
How long does a brownfield project take?
Can I upload a phone photo of a drawing?
Digitize your brownfield drawings.
Scanned P&IDs, single-line diagrams, loop diagrams, and instrument datasheets read into structured documents. The I/O list, equipment list, line list, and valve list in your tag convention. No CAD source. No manual redrawing.