Miniserver Gen. 1

The Loxone Miniserver serves as central control unit for all kinds of automation tasks.

The replaceable microSD card contains the operating system as well as the user programming and settings. The LAN interface is used for programming and the integrated web server allows the control of the system via a web interface or the Loxone App.

It features 8 potential free relays, 8 digital inputs, 4 analogue inputs (0-10V) and 4 analogue outputs (0-10V). Up to 30 Extensions can be added to the Miniserver via the Link interface to add additional functions such as inputs, outputs or interfaces.

An interface for connecting KNX devices is also integrated.

Datasheet Miniserver Gen. 1

Table of Contents


The Miniserver is installed on a DIN rail in a suitable enclosure.

Connect the power supply, as well as inputs/outputs and interfaces, if applicable.

Via the LAN port the Miniserver is connected to the local network or a WiFi router.

Information on connecting additional devices.

The Miniserver starts after the power supply is turned on, and will be operational within a few seconds.
Once the boot up process is complete, the left status LED will blink green once every second.
The right LED indicates whether any System Status messages are available.

When starting for the first time with factory settings, the Miniserver is assigned an IP address by the router via DHCP.
If there is no DHCP server in your network, or if the Miniserver is connected directly to a PC, its default IP address is In this case, assign a matching IP address to the PC to make the connection possible.
Zeroconf link-local addressing is not supported by the Miniserver Gen. 1.

You can then search for the Miniserver in Loxone Config and connect. The factory settings for user and password are: admin/admin

Then follow the instructions for the Initial Setup to create your new project with the Miniserver.

Connecting Extensions

Up to 30 Extensions can be connected to a Miniservers Link Interface according to the following diagram:

Connect the Extensions to a Miniserver by daisy-chaining the Link interfaces. If any of the Extensions are connected to a separate power supply, then all power supply's GND (negative) have to be interconnected. This connection is crucial for reliable data transmission.

The blue/white pair of a CAT5/6/7 cable is used to wire the Link throughout a building. This allows a maximum length of 500m/1640ft.

The Link interface is terminated at the last Extension using the 120 Ohm resistor that is included with the Miniserver.

After switching on the power supply, the Extensions first flash red, and after successful connection to the Miniserver they flash orange.

You can now proceed with pairing the Extensions.

Pairing Extensions

To search for Extensions, first click on a Link Interface in Loxone Config, and then activate Extension Search.

The window that opens will list all connected Extensions that are not yet part of the program to the left:

If you select an Extension here, it will identify itself by flashing the status LED. This allows you to assign and name the Extensions correctly.

Select the desired Extension, assign a name and installation location and add it to the programming using the + button.

The right window lists all the Extensions that are currently part of the program. You can display them by clicking the button Show my Extensions. You can also replace an existing Extension with a new one of the same type that was found in the search. This is useful when a device needs to be replaced or devices are added to a pre-configured program. Select the device to be added and the device to be replaced. By clicking on the button with the arrow pointing right, the old device is replaced with the new one in the program.

To apply the changes, save the program in the Miniserver.

Now the added Extensions are ready for use and available in the Periphery Tree in Loxone Config.

Update and diagnostics of Extensions

If an Update is necessary for Extensions, they are highlighted orange in Device Status. This often happens after a recent update of the Miniserver or when adding Extensions with an older firmware version.

The Miniserver automatically updates the Extensions in the background, the Extensions generally remain operational. However, there can be delays in communication. In rare cases, some functions of Extensions may not be available until the update is completed.

The following options are available for Diagnostics:

1. The Status LED of an Extension allows for quick error checks.
Red flashing: No connection to Miniserver, check wiring and Miniserver.
Orange flashing: Connection to Miniserver ok, but Extension not yet added to the program.
Green flashing: Everything okay, Extension is online.
Orange/Red flashing: Transmitting update.
Quick red/green flashing: Extension was selected in Loxone Config and is identifying.
Not flashing: Check power supply.

2. Link Diagnostics provides a more detailed analysis. First connect to the Miniserver, select a device with Link interface, and then click on the button Link Diagnostics.

The Extensions are now listed in the Link Diagnostics window. Diagnostic data is transmitted continuously, and can be used to detect any errors. Any errors are displayed accordingly. Please monitor the Link Diagnostics for a while, even temporary errors (e.g. poor contact, potential difference) can be detected by packet loss.

Checklist to troubleshoot the Link interface

Additional information

Restore factory defaults and format SD card

Creating a backup

Update the Miniserver

How to set up remote access

Connecting several Miniservers via Tree Intercommunication

Connecting multiple Miniservers via Gateway-Client function


Summary Unit Value Range
Input 1 Digital 0/1
Input 2 Digital 0/1
Input 3 Digital 0/1
Input 4 Digital 0/1
Input 5 Digital 0/1
Input 6 Digital 0/1
Input 7 Digital 0/1
Input 8 Digital 0/1
Voltage 1 -
Voltage 2 -
Voltage 3 -
Voltage 4 -


Summary Unit Value Range
Actuator (Relay) 1 Digital 0/1
Actuator (Relay) 2 Digital 0/1
Actuator (Relay) 3 Digital 0/1
Actuator (Relay) 4 Digital 0/1
Actuator (Relay) 5 Digital 0/1
Actuator (Relay) 6 Digital 0/1
Actuator (Relay) 7 Digital 0/1
Actuator (Relay) 8 Digital 0/1
Voltage 1 -
Voltage 2 -
Voltage 3 -
Voltage 4 -


Summary Description Default Value
Serial Number Specifies the serial number of the device.
For Extensions: 'Auto' may only be used if only one Extension of this type is being used.
Local Address Enter the local address of the Miniserver, this is the IP address or hostname that can be used to reach it on the local network. -
External Address Enter the address through which the Miniserver is accessible over the internet (Hostname or IP).
If you are using Loxone Cloud DNS, then please enter or<port> if you are not using port 80.
Miniserver Configuration Edit Miniserver settings. A connection to the Miniserver is required. -

Safety Instructions

The installation must be carried out by a qualified technician in accordance with all applicable regulations.

The installation requires a suitable enclosure to ensure protection against contact, water and dust.

The device must not be used as part of safety-critical systems.


Datasheet Miniserver Gen. 1

Datasheet Relay