DI Extension

The DI Extension features 20 digital inputs.

The inputs can also be used as frequency counters, to connect for example S0 meters or wind sensors that transmit pulses.

Datasheet DI Extension

Table of Contents


The DI Extension is installed on a DIN rail in a suitable enclosure.

Connect the power supply and Link communication to the Miniserver.

You can connect push buttons to the digital inputs, for example. When using the inputs as frequency counters, wind sensors or S0 meters can also be connected.

If the devices are connected to different power supplies, it is essential that the GNDs are interconnected.

The Extension starts after switching on the power supply, and the status LED will flash orange after a short time when the connection to the Miniserver is established.

Then follow the pairing procedure

Wiring examples

Connect sensors with open collector outputs

Connecting a 230V motion sensor to a digital input


Summary Unit
Input 1 Digital
Input 2 Digital
Input 3 Digital
Input 4 Digital
Input 5 Digital
Input 6 Digital
Input 7 Digital
Input 8 Digital
Input 9 Digital
Input 10 Digital
Input 11 Digital
Input 12 Digital
Input 13 Digital
Input 14 Digital
Input 15 Digital
Input 16 Digital
Input 17 Digital
Input 18 Digital
Input 19 Digital
Input 20 Digital

Diagnostic Inputs

Summary Unit
Online Status DI Extension Digital


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.
Monitor Online Status When selected, you will be notified via System Status or the Cloud Mailer if the device is no longer available or goes offline. -

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 DI Extension