Technical Manual – IP Router SCN-IP100.03
MDT technologies GmbH •
51766 Engelskirchen • Papiermühle 1
Tel.: +49-2263-
880 • Fax: +49-2263-4588 • [email protected] • www.mdt.de
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3.2.5 Commissioning Password
The commissioning password is required in the ETS for the entire process/download during
commissioning / device security of a KNX IP Secure device. It is also used to authenticate the ETS to
the device.
It has to be different from passwords of possible secured, additional interfaces and represents the
so-called management level for the device configuration by the ETS.
Only the ETS itself knows the commissioning password and can make changes to the device.
Passwords of secured additional interfaces can be distributed, e.g. to an external visualisation.
The commissioning password can be adapted by the user and is visible in the tab “Device ->
Properties -> IP”:
Figure 6: Commissioning Password/ Authentication Code
It is recommended to give each device an individual commissioning password and not a universal one
in the entire project or even across projects. The ETS automatically assigns an individual password.
3.2.6 Authentication Code
The authentication code is required for authenticating KNX IP Secure devices.
As the FDSK is known outside of ETS, for example as QR Code or imprint on the device, this key has to
be changed in the ETS project.
The FDSK is replaced by an individual authentication code for this ETS project and this KNX IP Secure
device. Subsequent communication of the device with the ETS will then be done with this (new)
authentication code (instead of the initial FDSK).
Each KNX IP Secure device therefore has an individual* authentication code after commissioning
which is different from the initial FDSK.
* if not overwritten by the ETS user - in case of multiple devices - with an identical authentication
code
The authentication code can be changed in ETS in the same way as the commissioning password, see
Figure 2 above.