> For the complete documentation index, see [llms.txt](https://docs.tricloudnexus.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.tricloudnexus.io/management-portal/oee/sites/site-settings.md).

# Site Settings

Site name, description, OEE data store, time zone and physical location.

The **Site Settings** tab is shown when a Site node is selected on the OEE Sites page. It defines the metadata that applies to every Area and Equipment under the Site — most importantly, the **time zone** used to evaluate shifts and the **data store** that holds OEE results.

<figure><img src="https://570593659-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FYMGRODsc2QD3N3wmfwTl%2Fuploads%2Fgit-blob-22cb66391f35baa19c0bd5aabca79d35600c3010%2Foee-site-settings.png?alt=media" alt=""><figcaption><p>Site Settings — Site info (name, description, data store) above, Location (time zone, lat/long, map) below</p></figcaption></figure>

***

## Site info

| Field           | Required    | Notes                                                                                                                                                                                                                     |
| --------------- | ----------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Site name**   | Yes         | Display name used everywhere the Site is shown.                                                                                                                                                                           |
| **Description** | No          | Free-text, multi-line. Useful for capturing physical address, contact, or operational notes.                                                                                                                              |
| **Data Store**  | Recommended | Drop-down filtered to data stores whose **Purposes** include **OEE**. The Site cannot ingest data or measure OEE without one — see [Prerequisites](/management-portal/oee/prerequisites.md) for how to flag a data store. |

{% hint style="warning" %}
If no data store is selected, the field shows the warning **"If no data store is selected, the site can not ingest data and measure OEE"**. The Site can still be saved (so you can come back later), but no OEE will be calculated until a data store is set.
{% endhint %}

***

## Location

The location block defines the time zone used by all OEE calculations for equipment under the Site, plus an optional point on a map for at-a-glance overviews.

| Field                    | Required | Notes                                                                                                                                                                                                                                                              |
| ------------------------ | -------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| **Time Zone**            | Yes      | Filterable drop-down of all system time zones. Defaults to `Europe/Berlin` for new Sites. The selected zone is used to evaluate shift recurrences and planned-stop schedules — change it deliberately, and only when the physical Site’s time zone really changes. |
| **Longitude / Latitude** | No       | Decimal degrees, six decimals. Either type the values directly, or click on the map to drop a marker.                                                                                                                                                              |

The marker on the map reflects the current Latitude / Longitude values and updates when you click the map.

{% hint style="info" %}
All shift and planned-stop times are stored in **UTC**. The Time Zone setting only controls how those UTC instants are **displayed** — changing it does not change the underlying data or any historical OEE results. A shift configured as 07:00–15:00 in `Europe/Berlin` is stored as the corresponding UTC interval; switching the Site to `America/New_York` means the same interval is shown at New York wall-clock time (e.g. 01:00–09:00 in winter). If the equipment physically moves to a new time zone and you want the schedule to keep its local wall-clock semantics, recreate the shifts in the new zone.
{% endhint %}

***

## Saving

The Site Settings tab participates in the page-level Save / Cancel toolbar. The tree on the left is disabled while the editor has unsaved changes — save or cancel before selecting a different node.

Validation errors (missing name, missing time zone) are surfaced under the offending field and the **Site** tab header is marked invalid until they’re resolved.