# RRDTool

> Symcon documentation · English · generated on 2026-09-26  
> Index: https://www.symcon.de/en/llms.txt

Source: https://www.symcon.de/en/service/documentation/module-reference/legacy/rrdtool/

RRDtool is the OpenSource industry standard, high performance data logging and graphing system for time series data. Use it to write your custom monitoring shell scripts or create whole applications using its Perl, Python, Ruby, TCL or PHP bindings.

The RRDTool module is a direct integration of RRDTool as PHP function in IP-Symcon.
No other functions are offered.

The RRDTool manual is the first point of contact to find information about using this module.

The current version number you can find out as follows:

```php
echo RRD_Execute("version -");
```

## RRD_Exexute

Source: https://www.symcon.de/en/service/documentation/module-reference/legacy/rrdtool/rrd-exexute/

`bool RRD_Execute(int $InstanceID, string $Command)`

Directs a command to the RRD Tool Library and executes it. Once the command has been executed, the execution will be proceed.

**Parameters**

- `$InstanceID` (int): ID of the device to be switched
- `$Command` (string): RRD command. See

**Returns** (bool): If the command succeeds, it returns __TRUE__, otherwise __FALSE__.

RRD command. See

**Example**

```php
//No example available
```