I also found this in the deconz VNC:
It however looks like read-only, and I haven’t yet succeeded in reading or writing the Reporting Configuration. Anyway this looks like exactly what I’m looking for.
EDIT: The correct row is probably 0x0000 (Measured Value), and reading it succeeded. The defaults seem to be:
Min Report Interval: 10
Max Report Interval: 300
Reportable Change: 100
I’m still trying to write changes, but don’t expect it to work as it seems to be read-only.