Dell UltraSharp 1800FP User manual
DellTM 1800MP RS232 Protocol Pin Assignment
(Facing Projector)
RS232 Pin Assignment
RS232 Protocol
• Communication Settings
• Command types
To pop up the OSD menu and adjust the settings.
• Control command Syntax (From PC to Projector)
[H][AC][SoP][CRC][ID][SoM][COMMAND]
•Example: Power ON Command (Send low byte firstly)
--> 0xBE, 0xEF, 0x10, 0x05, 0x00, 0xC6, 0xFF, 0x11, 0x11, 0x01, 0x00, 0x01
Header "BE EF"
Address Code "10" ==> Fixed
Payload Size "05 00"==> From wMsgID to end
CRC "C6 FF" ==> If CRC value is "C6 (Low Byte) FF (High Byte)"
MsgID "11 11"
MsgSize "01 00"==> From command to end.
Command "01"==> "Power ON" command.
• Projector Response Message Table:
0x00: Success
Connection settings Value
Baud Rate: 19200
Data Bits: 8
Parity None
Stop Bits 1
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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*.*")
Control Commands List
Information in this document is subject to change without notice.
©
2006 Dell Inc. All rights reserved.
Reproduction in any manner whatsoever without the written permission of Dell Inc. is strictly
forbidden.
Trademarks used in this text:
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Other trademarks and trade names may be used in this document to refer to either the entities
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Header
(WORD)
Address
Code
(BYTE)
Size of the
payload
(WORD)
CRC16
for the
entire
packet
(WORD)
MsG ID
(WORD)
MsG size
(WORD)
Command
code
(BYTE)
Command
Description
0xefbe 0x10 0x0005 0xffc6
0xbfc7
0x7e07
0x3fc5
0xfe05
0xbe04
0x7fc4
0x3fc0
0xfe00
0xbe01
0x7fc1
0x3e03
0xffc3
0x7e02
0x3fca
0xfe0a
0xbe0b
0x7fcb
0x3e09
0x7e08
0x3e0c
0xffcc
0x3fcf
0xbe1f
0x7fdf
0xbfd9
0x7e19
0x3fdb
0xfe1b
0xbe1a
0x7fda
0x3e12
0x3ff6
0x7e46
0x1111 0x0001 0x01
0x02
0x03
0x04
0x05
0x06
0x07
0x08
0x09
0x0A
0x0B
0x0C
0x0D
0x0F
0x10
0x11
0x12
0x13
0x14
0x17
0x18
0x19
0x1C
0x22
0x23
0x2A
0x2B
0x2C
0x2D
0x2E
0x2F
0x30
0x40
0xFF
Power
Menu
Up
Down
Left
Right
R-sync
Source
Volume +
Volume -
Zoom in
Zoom out
Mute
Hide
Video Mode
H. Keystone Up
H. Keystone Down
V. K e y s t o n e U p
V. K e y s t o n e D o w n
Aspect ratio (4:3/16:9)
Power OFF
Source-VGA-A
Source VGA-B
Source-S-Video
Source-Composite
ECO Mode ON
ECO Mode OFF
Auto Source ON
Auto Source OFF
Factory Reset
Lamp Hour
Firmware Version
Enter key
System Status
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