Dell RS232 manual Example Power On Command Send Low Byte Firstly, Projector Response Message Table

Control Command Syntax (From PC to Projector) [H][AC][SoP][CRC][ID][SoM][COMMAND] [H][AC][SoP][CRC][ID][SoM][COMMAND][Value]

Example: Power On Command (Send Low Byte Firstly)

Enter the following code:

0xbe, 0xef, 0x10, 0x05, 0x00, 0xc6, 0xff, 0x11, 0x11, 0x01, 0x00, 0x01

Header [H] ==> Fixed, “be (Low Byte), ef (High Byte)” Address Code [AC] ==> Fixed, “10”

Size of Payload [SoP] ==> Byte size from MsgID to Command Code, “05 (Low Byte), 00 (High Byte)” or Byte size from MsgID to Value, “06 (Low Byte), 00 (High Byte)”.

CRC16 [CRC] ==> CRC value, “c6 (Low Byte), ff (High Byte)” MsgID [ID] ==> Fixed, “11 11”

MsgSize [SoM] ==> Byte size of Command Code, “01 (Low Byte), 00 (High Byte)” or Byte size of Command Code and Value, “02 (Low Byte), 00 (High Byte)” Command Code [COMMAND] ==> “Power On” Command, “01”

Projector Response Message Table

Byte0 value:

0x00: Success

0x01: Invalid Command (on the control command list but no valid)

0x02: Error Command (includes CRC error and unknown commands)

Projector Response System Status

Byte0, Byte1, Byte2

Byte0: 0x00 (Success)

Byte1: 0xff (the Command Code of System Status)

Byte2: Return status

Ex: When the projector is in standby mode, the return status will be 0x01.

Projector Response Lamp Hour Byte0, Byte1, Byte2, Byte3 Byte0: 0x00 (Success)

Byte1: 0x2f (the Command Code of Lamp Hour)

Byte2: LSB (Hex)

Byte3: MSB (Hex)

Ex: 800 (3x256 + 2x16 = 800) hours --> 0x00, 0x2f, 0x20, 0x03

Firmware Version Response Byte0, Byte1, Byte2, Byte3…Byte7 Byte0: 0x00 (Success)

Byte1: 0x30 (the Command Code of Firmware Version) Byte2…Byte7

Firmware version: 6 Bytes ASCII Code: “M0RXXX”

XXX: 000-999

Ex: Version M0R001 Æ “M0R001” Æ0x4d, 0x30, 0x52, 0x30, 0x30, 0x31 (Success,

the Command Code of FW Version, 6 Bytes ASCII Code: “M0RXXX”)