How to set up KNX Secure with Thinka
KNXKNX Secure with Thinka — Setup Guide
This guide explains how to enable KNX Secure so that Thinka can read and write encrypted (secure) group addresses on your KNX installation.
- Why this is needed
KNX Secure devices only accept telegrams from senders authorized in your ETS project. Adding a KNX Secure "dummy" device with Thinka's individual address authorizes Thinka, and the exported keyring provides the keys it needs.
- Prerequisites
> ETS (5 or 6) with your secure project open.
> Thinka connected to the KNX bus.
> You know Thinka's individual address (shown in Thinka under *Settings → KNX*).
- Step 1 — Add a KNX Secure dummy device
In the ETS Catalog, search for dummy secure and add the Albrecht Jung "Dummy Secure" device.
- Step 2 — Give the dummy Thinka's individual address
Add the dummy to your line, then in Properties set its Individual Address to the same value as Thinka (here `1.1.33`).
This is the key step: Thinka sends and receives its secure telegrams from this address, so the dummy must carry exactly the same one.
- Step 3 — Associate your secure group addresses
Link the secure group addresses Thinka needs to control or read to the dummy device's group object(s) — everything Thinka should switch, dim, set, and read back (switching, dimming, value, status, etc.). Secure group addresses are marked with the shield icon.
> Important: After associating the addresses, download the affected receiver devices (e.g. the dimming actuator). The download is what writes Thinka's address into their authorized-sender tables. Until those devices are downloaded, they will still ignore Thinka's secure telegrams.
- Step 4 — Export the keyring
With the dummy selected, confirm in Properties that Secure Group Addresses is set to "Supported", then click Export Interface Information (highlighted below) to export the keyring.
- Step 5 — Protect the keyring with a password
When you export, ETS asks you to protect the keyring with a password — set one and remember it; you will need it in the next step.
- Step 6 — Upload the keyring to Thinka
In Thinka, go to Settings → KNX → KNX Data Secure. Choose the exported `.knxkeys` file, enter the keyring password, and click Upload keyring.
Knx Secure is now active, and Thinka can read and write your secure group addresses.
