This parameter is performance-related and defines a pause between complete D4i data scans of the network (of all DALI fixtures managed by the DALI Gateway).
New or replaced devices are not detected on these scans. The parameter will refresh the data on the memory banks.
Consider practical values like 900 seconds (15 min) or 3500-10000 seconds (1-3 hours). The "interval" sets inactivity periods. D4i scans may take a few minutes, about 3 seconds per device for energy counters.