---
title: 'Summary of Plugin Parameters'
url: 'https://manuals.remository.com/plotalot/plotalot-plugin/summary-of-plugin-parameters'
markdown: 'https://manuals.remository.com/plotalot/plotalot-plugin/summary-of-plugin-parameters.md'
date: '2026-10-06'
description: 'Parameter Notes id="nnn" The chart number to draw. This parameter must always be specified. If the value is non-numeric, it is resolved as a request variable. cache_time="nnn" Number of seconds to re-use charts without re-genera…'
taxonomy:
  category:
    - docs
---

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  [ Plotalot for Joomla ](https://manuals.remository.com/plotalot/)     [ Plotalot Plugin ](https://manuals.remository.com/plotalot/plotalot-plugin)      Summary of Plugin Parameters    

# Summary of Plugin Parameters

| Parameter | Notes |
|---|---|
| `id="nnn"` | The chart number to draw. This parameter must always be specified. If the value is non-numeric, it is resolved as a request variable. |
| `cache_time="nnn"` | Number of seconds to re-use charts without re-generating them. You can set the default for this parameter in the Joomla Plugin manager. |
| `use_cache_if_error="yes"` | "yes" means that an expired cached chart can be used if the chart cannot be drawn. You can set the default for this parameter in the Joomla Plugin manager. |
| `full_width` | Draws the chart in a `<div>` without style="display:inline-block;". |
| `error_img="xxx"` | Pathname of an image to draw if the chart cannot be drawn. |
| `error_txt="xxx"` | Text to be shown if the chart cannot be drawn. |
| `refresh="nnn"` | The chart will be re-generated and re-drawn every nnn seconds. |
| `class="xxx"` | A CSS class to add to the chart `<div>` element. |
| `csv="xxx"` | Options for CSV data downloads.  **csv="my\_file\_name.csv"** sets the name of the downloaded file. To be recognised as a filename, the name must have the .csv extension. The default filename is "chart\_data.csv".  **csv="headrow"** adds the column names as the first row of the file.  **csv="sep"** adds an extra first row "sep=," (without the quotes) which forces Microsoft Excel to interpret commas as separators. Do not use this unless your users exclusively use MS Excel as other software will treat this as a data line. Any combination of options can be used by separating them with commas, for example **csv="my\_file\_name.csv ,headrow,sep"**. |
| `png="xxx"` | Options for PNG image downloads.  **png="my\_file\_name.png"** sets the name of the downloaded file. To be recognised as a filename, the name must have the .png extension. The default filename is "chart.png". |
| `P000 - P999` | Parameters that can be passed into the chart query, as described in the Advanced Techniques section. |

 [ ](https://manuals.remository.com/plotalot/plotalot-plugin/caching) [](https://manuals.remository.com/plotalot/css-and-responsive-charts)

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## Navigation

- Parent: [Plotalot Plugin](https://manuals.remository.com/plotalot/plotalot-plugin.md)
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