> 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/english-v14/connectivity-as-a-service/connect-devices-with-abb-buildingpro/connect-devices-via-mqtt/configure-a-publication.md).

# Configure a publication

Since v12.0.0, Eliona can act not only as a subscriber, but also as a publisher of MQTT messages. 

This chapter explains the interface with which you can use Eliona as an MQTT publisher.

## Procedure

1. Follow these steps in ↗ Broker details -> Create new publication. \
   ▷ The «Configure Publication» menu opens
2. Configure the publication as desired
3. Click on **Save \[C]**

<div data-full-width="true"><figure><img src="/files/870af0743c2607fd4cd1c9143a46ea753fc44c00" alt=""><figcaption><p>The «Configure Publication» menu </p></figcaption></figure></div>

<table data-full-width="true"><thead><tr><th width="88.33333333333331">Element</th><th width="283">Title</th><th>Details</th></tr></thead><tbody><tr><td><strong>[A]</strong></td><td>Topic preview</td><td>In this section you see a preview of the incoming data</td></tr><tr><td><strong>[A1]</strong></td><td>Section «Configuration»</td><td>In this area you specify details for the publication.</td></tr><tr><td><strong>[A2]</strong></td><td>Name</td><td>Give the publication a name</td></tr><tr><td><strong>[A3]</strong></td><td>Topic</td><td>Enter the topic here under which Eliona should publish messages</td></tr><tr><td><strong>[A4]</strong></td><td>format</td><td>Select which format should be applied to the publication</td></tr><tr><td><strong>[A5]</strong></td><td>Create new format</td><td>Click here to create a new format. <br>▷ Opens the «Functions» menu</td></tr><tr><td><strong>[B]</strong></td><td>Assets</td><td>In this section you select the assets whose data should be published. ◈ Assets are selected based on <a href="/pages/545005ff273c05941b46e51638c485bc0e0a93d9">↗ tags</a> selected.</td></tr><tr><td><strong>[B1]</strong></td><td>Browse tags</td><td>Select one or more tags here. Assets that are assigned the selected tags appear in field <strong>[B4]</strong></td></tr><tr><td><strong>[B2]</strong></td><td>Assets without tags</td><td>If this field is enabled, all assets that are not assigned any tags are selected and appear in <strong>[B4]</strong></td></tr><tr><td><strong>[B3]</strong></td><td>Selected tags</td><td>Here all tags that were selected in <strong>[B2]</strong> are listed</td></tr><tr><td><strong>[B4]</strong></td><td>Preselection of assets</td><td>All assets that meet the criteria set in <strong>[B1]</strong> and <strong>[B2]</strong> are listed here. ⚠ These assets have not yet been selected!</td></tr><tr><td><strong>[B5]</strong></td><td>Select assets</td><td>Activate the checkbox for the respective asset to enable this asset for publishing.</td></tr><tr><td><strong>[B6]</strong></td><td>Search in the preselection</td><td>Searches the assets selected in <strong>[B4]</strong> .</td></tr><tr><td><strong>[B7]</strong></td><td>More options</td><td>Opens more options for the selected asset.</td></tr><tr><td><strong>[C]</strong></td><td>Save</td><td>Click here to save the selection.</td></tr></tbody></table>


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