> For the complete documentation index, see [llms.txt](https://help.auxalia.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.auxalia.com/plant-tools/plantspecdriven/how-to-use/concepts/assign-catalog-data.md).

# Assign Catalog Data

The term 'Assign Catalog Data' is a bit misleading. It should be 'Assign Pipe Spec Data'. What it does, it maps/assigns values from the Plant 3D Pipe Spec to the P\&ID Symbol's properties.

Details can be found under [Inserting a P\&ID Symbol into a Pipe Line Segment](/plant-tools/plantspecdriven/how-to-use/use-cases/inserting-symbols-pid.md) and [Changing Spec or Size of a Pipe Line Segment](/plant-tools/plantspecdriven/how-to-use/use-cases/editing-line-segment-properties-pid.md).

The following images are a typical example often used by customers. If you insert a general valve symbol you see several properties starting with PSD which are read-only and they are all blank.

![](https://2994090777-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FZH2AGHzvPfBW7YdaaGc0%2Fuploads%2Fgit-blob-134f6b9171feb3acaaa9278e6bbfb5fc458468a2%2FPSD-Concepts-008.png?alt=media)

If you insert this valve you will be shown the 'Part Selection' dialog where are see the suitable valves from the Pipe Spec.

![](https://2994090777-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FZH2AGHzvPfBW7YdaaGc0%2Fuploads%2Fgit-blob-abfaec76750627d98d55dac2a39e7aa57a92496f%2FPSD-Concepts-009.png?alt=media)

After selecting a part from the list PlantSpecDriven can substitute the P\&ID Symbol (optional). In the Properties Palette you will then see, that the properties are filled with the data from the Pipe Spec.

![](https://2994090777-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FZH2AGHzvPfBW7YdaaGc0%2Fuploads%2Fgit-blob-737eeabc52e78f5849e32e56346d223b684e1bc3%2FPSD-Concepts-010.png?alt=media)

If AutoPipe is also used, the flange symbols will get data from the Pipe spec as well.

![](https://2994090777-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FZH2AGHzvPfBW7YdaaGc0%2Fuploads%2Fgit-blob-6c7cbc64beebda6f3a3879ff5fe066ea72f81a9a%2FPSD-Concepts-011.png?alt=media)

And since AutoPipe can also insert Fasteners like Gaskets, those Gaskets get Pipe Spec data as well.

![](https://2994090777-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FZH2AGHzvPfBW7YdaaGc0%2Fuploads%2Fgit-blob-22cd374f712c5d7b421c1f5321eceb000fc60e3c%2FPSD-Concepts-012.png?alt=media)

If properties which are used for finding the correct Part change, the Assign Catalog Data feature will automatically update the assigned Pipe Spec data.

![](https://2994090777-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FZH2AGHzvPfBW7YdaaGc0%2Fuploads%2Fgit-blob-46bec2e0b7589cb44356d960a1db3f50f4b0d94b%2FPSD-Concepts-013.png?alt=media)

Also for the flanges.

![](https://2994090777-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FZH2AGHzvPfBW7YdaaGc0%2Fuploads%2Fgit-blob-96f85c75a1a05136dfe23a431c2afbe773c97a25%2FPSD-Concepts-014.png?alt=media)

And for the Gasket.

![](https://2994090777-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FZH2AGHzvPfBW7YdaaGc0%2Fuploads%2Fgit-blob-42b7e6c9aa27726f1e54b8977726b1a66d2a0c9c%2FPSD-Concepts-015.png?alt=media)