Question
The standardised DALI Memory Bank 1 (MB1) stores lamp operation data: cumulative operating hours, switching cycles, maximum temperature, supporting lifecycle tracking and predictive maintenance.
DALI-2Mock examMemory BanksMedium
Answer
True
MB1 holds lifecycle data: Operating Hours (cumulative on-time), Power-on Counter (switching cycles, which affect LED life), Lamp Temperature (the highest internal temperature recorded) and Power Failure Counter (number of mains outages). The data is useful for preventive maintenance (an alert before LED end-of-life), for tracking operating conditions and for honouring vendor warranties.
Preparation tip
Read MB1 monthly into your BMS historian — once the gear hits 80 percent of rated hours, schedule a like-for-like replacement well before the failure cluster begins.
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