---
title: "PlatformSignal"
description: "a signal kind the platform's things, relations or measures feed, with what on the platform means it"
section: concepts
address: /concepts/platformsignal
contract: 0476e35e6e275db5
---

# PlatformSignal

a signal kind the platform's things, relations or measures feed, with what on the platform means it

[figure: PlatformSignal is a value at none scope. The drawing shows its fields and the objects that they point at.]

| property | value |
|---|---|
| kind | value |
| scope | none |
| key | none |
| store | none |
| family | sources |



## Fields


| field | type | required | note |
|---|---|---|---|
| `signal` | [KindOfSignal](/concepts/kindofsignal) | yes |  |
| `from_thing` | `text` | no |  |
| `from_relation` | `text` | no |  |
| `from_measure` | [KindOfMeasure](/concepts/kindofmeasure) | no |  |
| `meaning` | `text` | yes |  |



## Routes that use it
No route takes or returns PlatformSignal directly. The record holds it, and the objects that point at it reach it.