/* !! pokud se změní umístění/název tohoto dokumentu je potřeba udělat redirect !! */
~~NOTOC~~
====== Exporting data from Mervis SCADA ======

Following steps describe how to export data stored in Mervis DB using Mervis SCADA or API. To export data, it is necessary to have an account with sufficient privileges for the project.

----

Export and download of data can be done:
  * [[#export_directly_from_scada|In SCADA from Graphs]]
  * [[#export_via_api|Using public API]]

===== Export directly from SCADA =====

To export data from SCADA, it is necessary to select which variables should be exported. 
Select the appropriate variables in data point table.

{{ .:export-data:export-data_00-select-dp.png?direct |}}

Move to the graphs tab.
In the graph tab, select the time interval, from which the data will be exported. 
Next click on **Export data**.

{{ .:export-data:export-data_02-graph.png?direct |}}

In the dialog window, select desired export options and then download the data with the button below.

{{ .:export-data:export-data_03-graph-dialog.png?direct |}}

/*
==== Export from table ====

In the table tab, select the time interval, from which the data will be exported. Next download the data in the desired format using the buttons shown below.

{{ .:export-data:export-data_01-table.png?direct |}}
*/

<WRAP group center round box 95%>
{{ :files:img_warning-line_b.png?nolink |}}
<WRAP half column 13%>
{{ :en:hw:09_safety-instructions_pseudo-ISO-7010-attention.png?nolink |(!)}}
</WRAP>
<WRAP half column 83%>
**Note:** \\
Loading too many data can halt or crash the browser or browser tab.
For large amount of data we rather recommend using API.
</WRAP>
</WRAP>

===== Export via API =====

Data can be downloaded even from public SCADA API. The API is described in [[.:05-mervis-scada:public_api|here]].