Dell 1800MP Projector - Manual (Page 2)

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m 0x01: Invalid command (on the control command list but not valid. e.g. card reader
command while no card reader plug-in)
0x02: Error command (includes CRC error and unknown commands).
0x03: System Status - Projector ON (Normal Mode).
NACK: System Status - Projector OFF (Standby Mode).
Note: When the projector is in the standby mode, no acknowledgement (NACK)
response is sent by the projector.
• Projector Response Lamp Hour:
Byte0, Byte1, Byte2, Byte3
Byte0: 0x00 (Success)
Byte1: 0x2F (the header of lamp hour)
Byte2: LSB (Hex)
Byte3: MSB (Hex)
Ex: 800 (3x256+2x16=800) hours --> 0x00, 0x2F, 0x20, 0x03
• Firmware version Response:
Firmware version: 4 Bytes ASCII Code: "V*.*"
V: Version
*: 0-9
• Example: Version 1.5 --> "V1.5" --> 0x00, 0x30, 0x56, 0x31, 0x2E, 0x35 (Success,
header of firmware version, 4 Bytes ASCII Code: "V*.*")