Page 306 - Advanced Course

KNX ADVANCED COURSE

Picture 13: Example parameter - meter in Wh

Important in this context is to refer to the used units of the corresponding DPTs. As can
be seen from the picture, the active power is measured in W/h. This means that one has
to set the appropriate type for this value in the visualisation in order to display the correct
information and to avoid any misinterpretation. For billing purposes by the utility or in daily
life, it is quite common that these values are displayed as kW/h. Many visualisation
software packages allow to convert these values via mathematical functions.

Picture 14: Conversion Wh-kWh

Home and Building Management Systems KNX Association
KNX and Smart Metering KNX and Smart Metering_E1212b.doc 15/25