# Module Reference – Overview

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

## Module Reference

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

> **Note:** The [Product Page](https://www.symcon.de/en/product/)  describes what IP-Symcon is.
> A table with all supported systems is listed at [Interfaces](../components/service.md).

In the Module Reference, natively supported modules are shown. In the corresponding module references, tutorials, examples, and Tips & Tricks for the respective system.
Furthermore, the module specific commands are listed.

> **Note:** __For a list of IP Symcon specific commands, see the [Command Reference](../functions/index.md).__

## Devices

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

## Logic

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

## Energy

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

## Visualizations

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

## Voice assistents

Source: https://www.symcon.de/en/service/documentation/module-reference/voice-assistents/

## Notifications

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

## Core Instances

Source: https://www.symcon.de/en/service/documentation/module-reference/core-instances/

## I/O Instances

Source: https://www.symcon.de/en/service/documentation/module-reference/i-o-instances/

I/O Instances deliver data from devices or sources outside of IP Symcon and make it available. These often form the first interface to the physical device.

### Integration in IP-Symcon
When creating a device instance, which requires an I/O instance as a parent instance, the appropriate instance is often created and set up automatically.
Only the settings need to be checked.
An I/O instance can also be inserted if required. This is often used in combination with a [RegisterVariable](registervariable.md), which has additional values available via [System Variables](../concepts/automations.md).

I/O instances are also used in [PHP Module Development](../developer/sdk-tools/sdk-php.md). Similar to native modules, I/O instances are inserted there as an interface.

## Backups

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

## Legacy

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