Sony VPL-FX52 Protocol Manual page 27

7. [Error status inquiry] ERST?
This command obtains the projector's error status.
The projector responds as follows:
Returns the response for the error status in the following format.
The error status is expressed with a six-digit number.
6th digit : Fan error
5th digit : Lamp error
4th digit : Temperature error
3rd digit : Cover open error
2nd digit : Filter error
1st digit : Other error
The number in each digit has the following meaning:
0 : No error detected
1 : Warning
2 : Error
For example, when the Fan error and the Temperature warning occur, the response will be as follows:
"201000"
8. [Lamp count/lamp time inquiry] LAMP?
This command obtains the number of the projector's lamps and the lamp time.
The projector responds as follows:
When normal :
Returns the accumulative time and the illumination time of the lamp for each lamp.
The number of lamp in the projector is 1.
"1" is displayed when the lamp is on, "0" when the lamp is off.
For example, when the accumulative time is 40 hours and the lamp is on, the response will be as follows:
"40 1"
Projector error occurring (including warning) : Returns "ERR4".
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VPL-CX61/CX63/CX75/CX76/CX80/CX85/CX86/FE40/FE40L/FX40/FX40L/FX51/FX52/FX52L/PX35/PX40/PX41