NEC NP-PX700W Command Manual page 19

DATA68 Selecting signal processing
00H : No execution (Normal condition)
01H : During execution
DATA69 Status of operation
00H : Idling
04H : Power On
05H : Cooling
06H : Idling (Error occurrence)
Other than above: (nondisclosure)
Internal use of code during a state transition period
DATA70 .. 71 Projector type