Reference designations, read whole onto the signal list.
IEC 81346 aspect-structured drawings, read into a signal list with the I/O class on every device. The =+- designations ISA-only tools cannot parse, kept exactly as the drawing prints them and ready for your controls platform.
Every aspect comes through unchanged.
An ISA-only reader cannot parse the =+- structure, and a short tag throws away the location and function aspects. Tagsight keeps the full designation, function, location, and product together, exactly as the drawing prints it, and adds the I/O class beside it, so the signal list still matches the cabinet and the sheet.
| On the drawing | On the signal list | I/O class | Description |
|---|---|---|---|
| =H1+R2-B1 | =H1+R2-B1 | AI | Flow transmitter |
| =H1+R2-K1 | =H1+R2-K1 | AO | Control valve |
| =P2+R5-S1 | =P2+R5-S1 | DI | Level switch |
How a signal list runs through Tagsight.
- 01Upload the designated set.Drag the P&IDs, circuit and function diagrams, location drawings, and existing signal lists into a workspace. PDF, scanned, or image. Vector PDFs read fastest; scans are read at high resolution and uncertain devices you review before export.
- 02Review the devices.Each device appears on the review canvas with its symbol shown on the source drawing. The full =+- designation is kept; the I/O class is shown for you to confirm or correct. Every edit is logged against the device it changed.
- 03Export the signal list.Export the signal list as Excel or CSV, or as a TIA Portal XML or Studio 5000 L5X tag table when the controller is known. The controls team imports the file directly on their workstation.
What you get.
- Signal list of the system with the I/O class on every device and the full IEC 81346 reference designation kept as printed
- Multiple reference-designated drawings read into a single deduplicated signal list
- Signal list exported as Excel or CSV, or as a TIA Portal XML or Studio 5000 L5X tag table
Common questions
What is an IEC 81346 reference designation?
IEC 81346 is the international standard for structuring and reference-designating systems. A designation carries up to three aspects: the function aspect (prefixed =), the location aspect (prefixed +), and the product aspect (prefixed -). A device on a drawing may read =H1+R2-B1, meaning a sensor B1 in cabinet R2 serving function H1. It is the backbone of RDS-PP in power and is used across European automation, rail, and building systems.
Does Tagsight read 81346 designations, not just ISA 5.1?
Yes. A reference designation is not an ISA loop tag, and an ISA-only reader cannot parse the =+- aspect structure at all. Tagsight reads the full designation as the drawing prints it and keeps each aspect intact on the signal list, so the list still matches the cabinet and the drawing.
What documents can I upload?
P&IDs, circuit and function diagrams, location and installation drawings, and existing signal lists. PDF, scanned sheets, or image files are all accepted. Vector PDFs from CAD read fastest; scanned sheets are read at high resolution and you review any uncertain device before export, with its location shown on the source drawing.
Are all three aspects kept, or only the product designation?
The complete designation is kept exactly as printed, the function (=), location (+), and product (-) aspects together, never reduced to a single aspect. The I/O class is added as its own column so the controls team can size the controller without re-reading every sheet.
Can I export the signal list to a controls platform?
The signal list exports as an Excel or CSV list. When the system runs on a Siemens or Rockwell controller, it also exports as a TIA Portal XML or Studio 5000 L5X tag table, with the I/O class carried into the export so the engineer imports one file.
How is a revision handled when the system changes?
Once the drawings are in a workspace, a later revision runs against the baseline signal list. The comparison returns an Excel Change Report with the added, removed, and modified designations, so a modification is a delta, not a full re-read.
Put it to work.
Tagsight keeps the full designation, function, location, and product together, exactly as the drawing prints it, and adds the I/O class beside it, so the signal list still matches the cabinet and the sheet.