JVC DLA-DS1U Serial protocol for the DLA-DS1U and DLA-M2000LU/SC D-ILA project - Page 39
Lamp Time
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12.24 Lamp Time :'U1C'(55H 31H 43H) Definition :Reset/check the lamp operation Command Parameter type Reply time Conditions :'U1C'(55H 31H 43H) :(*) :3seconds : Operation mode △ When resetting Standby mode Power ON mode Cool-down mode Emergency mode O X X X △ When requesting current time Standby mode Power ON mode Cool-down mode Emergency mode O O O X # Data Format △ Reset data format '!' '1' SP 'U1C' SP Reset Parameter CR (*)Reset parameter Character '[()]' HEX 5BH 28H 29H 5DH * Never issue the Reset command unless the lamp has been replaced with a new one. △ Tally (Response) data format when requesting current time '@' '1' SP Normal Termination Status SP Parameter 1 SP Parameter 2 CR (*)Parameter1 The Projector has an incremental counter which counts Lamp Operation Time at 1 time in every 4 minutes. Parameter 1 shows this counter value. The parameter type is "numeric". Actual lamp operating time is obtained by converting the Parameter 1 value into signed 2-byte binary hexadecimal and dividing it by 15. 38