How to read status of the KNX group addresses on bOS startup?

To read current statuses of KNX group addresses you need to create program task which will trigger on desired event (e.g. bOS Server started, KNX connected...). In program task add Run Command (ReadValueFromAddress or ReadValueFromStatusAddress) for every group address you want to get status of.

Program task example for reading status of few KNX group addresses.