> For the complete documentation index, see [llms.txt](https://docs.buildings.ability.abb/collection/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.buildings.ability.abb/collection/platform/alarms-rules-and-escalations/rule-chains/nodes/rule.md).

# Rule

Trigger a rule chain from an asset rule.

<div align="left"><figure><img src="https://2013058394-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FOqGnkz52o2zVUsEGEZGk%2Fuploads%2F7lRtfvoZnR6eo1bC6F1K%2FRule.png?alt=media&amp;token=118ba603-bd56-48d8-a5f2-20f2993d77a0" alt="" width="375"><figcaption></figcaption></figure></div>

Use **Rule** to react to a selected asset rule.

This node emits an output when the selected rule is triggered.

<div align="left"><figure><img src="https://2013058394-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FOqGnkz52o2zVUsEGEZGk%2Fuploads%2F6QbeSSh8BkQERvdruSvj%2Fimage%2055.png?alt=media&amp;token=42b0130f-bdba-40ac-be7e-d940c37927f9" alt="" width="267"><figcaption></figcaption></figure></div>

### What it does

The node listens to a rule on a selected asset.

Use it to start a rule chain path from a rule event.

### Outputs

* **Triggered** — Fires when the selected rule is triggered.

### Configurable settings

<div align="left"><figure><img src="https://2013058394-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FOqGnkz52o2zVUsEGEZGk%2Fuploads%2FPH793xUlEkPSWy7nkcHy%2FRule%20(1).png?alt=media&amp;token=88079cd6-a323-4a95-8a66-a11b8b361485" alt="" width="375"><figcaption></figcaption></figure></div>

* **Asset** — Select the asset.
* **Rule** — Select the rule on that asset.

### Typical use

Use **Rule** as an event source for notifications or follow-up actions.

### Related documentation

* [Rules](/collection/platform/alarms-rules-and-escalations/rules.md)
* [Create a Rule](/collection/platform/alarms-rules-and-escalations/rules/create-a-rule.md)
* [Nodes](/collection/platform/alarms-rules-and-escalations/rule-chains/nodes.md)

For the full editor flow, see [Configure Rule Chain](/collection/platform/alarms-rules-and-escalations/rule-chains/configure-rule-chain.md).


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