Dell C5517H User manual

Dell™ C5517H RS232 Protocol Document
RS232 Projector Pin Assignment (Facing Monitor) 






RS232 Serial Communication Cable Pin Assignment (Facing Cable) 
Pin Assignments
RS232
PIN DESCRIPTION
RS232
1
2
TXD
2
3
RXD
3
4
5
GROUND
5
6
7
Not Used
7
8
Not Used
8
9
Note 1: The RS232 cable is not provided by Dell.
RS232 Protocol
Communication Settings 
Connection Settings
Value
Baud Rate
9600 bps
Data Bits
8 bits
Parity
None
Stop Bits
1 bit
Flow control
None
Command Types
To adjust the OSD settings.

Control Command Syntax (From PC to Monitor)
[H0][H1][Len][R/W][Cmd][Data0]…[DataN][Chk]
[H0] = 0x37
[H1] = 0x51
[Len] = Length
[R/W] = Read/Write
Read = 0xEB
Write = 0xEA
[Cmd] = Command
[Data0]…[DataN] = Data0~N
[Chk] = Check Sum
Reply Command Syntax (From Monitor to PC)
[H2][H3][Len][Reply][RC][Cmd][Data0]…[DataN][Chk]
[H2] = 0x6F
[H3] = 0x37
[Len] = Length
[Reply] = Reply (0x02)
[RC] = Result Code
0 = Success
1 = Timeout
2 = Parameters Error
3 = Not connected
4 = Other Failure
[Cmd] = Command
[Data0]…[DataN] = Data0~N
[Chk] = Check Sum
Example: Get Monitor Name (Maximum 10 characters)
[From PC to Monitor] = 37, 51, 02, EB, 01, 8E
[From Monitor to PC] = 6F, 37, 0F, 02, 00, 01, 44, 65, 6C, 6C, 20, 43, 35, 35, 31, 37, 48,
00, 58
CheckSum calculation
Xor byte by byte from first byte to the end of the command data stream.
Control Commands List
Command Description
Command
Reply
Header_
0
(BYTE)
Header_
1
(BYTE)
Length
(BYTE)
R/W
(BYTE)
Command
(BYTE)
[Data0-DataN]-
[CheckSum]
[BYTEx(N+1)]-
[BYTE]
Header_
0
(BYTE)
Header_
1
(BYTE)
Length
(BYTE)
ReplyCode
(BYTE)
ResultCode
(BYTE)
Command
(BYTE)
[Data0-
DataN]-
[CheckSum]
[BYTEx(N+1)]-
[BYTE]
Parm / Return / Comments
/* MONITOR MANAGEMENT */
GetMonitorName
0x37
0x51
0x02
0xEB
0x01
CHK
0x6F
0x37
0x0F
0x02
[RC]
0x01
[Data0],…,[Dat
aB],CHK
ASCII string
GetMonitorSerialNumber
0x37
0x51
0x02
0xEB
0x02
CHK
0x6F
0x37
0x10
0x02
[RC]
0x02
[Data0],…,[Dat
aC],CHK
ASCII string
GetBacklightHours
0x37
0x51
0x02
0xEB
0x04
CHK
0x6F
0x37
0x05
0x02
[RC]
0x04
[Data0],…,[Dat
a1],CHK
Monitor Backlight Hours (WORD)
0 - 65535
/* POWER MANAGEMENT */
GetPowerState
0x37
0x51
0x02
0xEB
0x20
CHK
0x6F
0x37
0x04
0x02
[RC]
0x20
[Data0],CHK
Power State (BYTE)
0 - off
1 - on
SetPowerState
0x37
0x51
0x03
0xEA
0x20
[Data0],CHK
0x6F
0x37
0x03
0x02
[RC]
0x20
CHK
GetPowerLED
0x37
0x51
0x02
0xEB
0x21
CHK
0x6F
0x37
0x04
0x02
[RC]
0x21
[Data0],CHK
Power LED Setting (BYTE)
0 - off during Active
1 - on during Active
SetPowerLED
0x37
0x51
0x03
0xEA
0x21
[Data0],CHK
0x6F
0x37
0x03
0x02
[RC]
0x21
CHK
GetPowerUSB
0x37
0x51
0x02
0xEB
0x22
CHK
0x6F
0x37
0x04
0x02
[RC]
0x22
[Data0],CHK
Power USB Setting (BYTE)
0 - off during Standby
1 - on during Standby
SetPowerUSB
0x37
0x51
0x03
0xEA
0x22
[Data0],CHK
0x6F
0x37
0x03
0x02
[RC]
0x22
CHK
ResetPower
0x37
0x51
0x02
0xEA
0x2F
CHK
0x6F
0x37
0x03
0x02
[RC]
0x2F
CHK
NONE
/* IMAGE ADJUSTMENT */
GetBrightness
0x37
0x51
0x02
0xEB
0x30
CHK
0x6F
0x37
0x04
0x02
[RC]
0x30
[Data0],CHK
Brightness (BYTE)
0 - 100
values in increments of 1
SetBrightness
0x37
0x51
0x03
0xEA
0x30
[Data0],CHK
0x6F
0x37
0x03
0x02
[RC]
0x30
CHK
GetContrast
0x37
0x51
0x02
0xEB
0x31
CHK
0x6F
0x37
0x04
0x02
[RC]
0x31
[Data0],CHK
Contrast (BYTE)
0 - 100
values in increments of 1
SetContrast
0x37
0x51
0x03
0xEA
0x31
[Data0],CHK
0x6F
0x37
0x03
0x02
[RC]
0x31
CHK
GetAspectRatio
0x37
0x51
0x02
0xEB
0x33
CHK
0x6F
0x37
0x04
0x02
[RC]
0x33
[Data0],CHK
Aspect Ratio (BYTE)
0 - Wide 16:9
2 - 4:3
4 - 5:4
SetAspectRatio
0x37
0x51
0x03
0xEA
0x33
[Data0],CHK
0x6F
0x37
0x03
0x02
[RC]
0x33
CHK
GetSharpness
0x37
0x51
0x02
0xEB
0x34
CHK
0x6F
0x37
0x04
0x02
[RC]
0x34
[Data0],CHK
Sharpness (BYTE)
0 - 100
values in increments of 10
SetSharpness
0x37
0x51
0x03
0xEA
0x34
[Data0],CHK
0x6F
0x37
0x03
0x02
[RC]
0x34
CHK
/* COLOR MANAGEMENT */

GetColorTempCaps
0x37
0x51
0x02
0xEB
0x42
CHK
0x6F
0x37
0x07
0x02
[RC]
0x42
[Data0],…,[Dat
a3],CHK
Bitwise representation of color
temperatures (DWORD)
0x00000001 - 5000K
0x00000002 - 5700K
0x00000004 - 6500K
0x00000008 - 7500K
0x00000010 - 9300K
0x00000020 - 10000K
GetColorTemp
0x37
0x51
0x02
0xEB
0x43
CHK
0x6F
0x37
0x07
0x02
[RC]
0x43
[Data0],…,[Dat
a3],CHK
SetColorTemp
0x37
0x51
0x06
0xEA
0x43
[Data0],…,[Dat
a3],CHK
0x6F
0x37
0x03
0x02
[RC]
0x43
CHK
GetInputColorFormat
0x37
0x51
0x02
0xEB
0x46
CHK
0x6F
0x37
0x04
0x02
[RC]
0x46
[Data0],CHK
Input Color Format (BYTE)
0 - RGB
1 - YPbPr
SetInputColorFormat
0x37
0x51
0x03
0xEA
0x46
[Data0],CHK
0x6F
0x37
0x03
0x02
[RC]
0x46
CHK
GetColorPresetCaps
0x37
0x51
0x02
0xEB
0x47
CHK
0x6F
0x37
0x07
0x02
[RC]
0x47
[Data0],…,[Dat
a3],CHK
Bitwise representation of color presets
0x00000001 - Standard
0x00000002 - Multimedia
0x00000020 - Color Temp
0x00000080 - Custom Color
GetColorPreset
0x37
0x51
0x02
0xEB
0x48
CHK
0x6F
0x37
0x07
0x02
[RC]
0x48
[Data0],…,[Dat
a3],CHK
SetColorPreset
0x37
0x51
0x06
0xEA
0x48
[Data0],…,[Dat
a3],CHK
0x6F
0x37
0x03
0x02
[RC]
0x48
CHK
GetCustomColor
0x37
0x51
0x03
0xEB
0x49
[Data0],CHK
0x6F
0x37
0x06
0x02
[RC]
0x49
[Data0],…,[Dat
a2],CHK
Custom color type (BYTE)
0 - Gain
R value (BYTE) - 0 - 100
G value (BYTE) - 0 - 100
B value (BYTE) - 0 - 100
SetCustomColor
0x37
0x51
0x06
0xEA
0x49
[Data0],…,[Dat
a3],CHK
0x6F
0x37
0x03
0x02
[RC]
0x49
CHK
ResetColor
0x37
0x51
0x02
0xEA
0x4F
CHK
0x6F
0x37
0x03
0x02
[RC]
0x4F
CHK
NONE
/* VIDEO INPUT MANAGEMENT
*/
GetAutoSelect
0x37
0x51
0x02
0xEB
0x60
CHK
0x6F
0x37
0x04
0x02
[RC]
0x60
[Data0],CHK
Auto Select (BYTE)
0 - off
1 - on
SetAutoSelect
0x37
0x51
0x03
0xEA
0x60
[Data0],CHK
0x6F
0x37
0x03
0x02
[RC]
0x60
CHK
GetVideoInputCaps
0x37
0x51
0x02
0xEB
0x61
CHK
0x6F
0x37
0x07
0x02
[RC]
0x61
[Data0],…,[Dat
a3],CHK
Bitwise representation of video inputs
(DWORD)
0x00000001 - HDMI1
0x00000002 - HDMI2
0x00000008 - DP1
0x00000040 - VGA1
GetVideoInput
0x37
0x51
0x02
0xEB
0x62
CHK
0x6F
0x37
0x07
0x02
[RC]
0x62
[Data0],…,[Dat
a3],CHK
SetVideoInput
0x37
0x51
0x06
0xEA
0x62
[Data0],…,[Dat
a3],CHK
0x6F
0x37
0x03
0x02
[RC]
0x62
CHK
/* OSD MANAGEMENT */
SetOSDTransparency
0x37
0x51
0x03
0xEA
0x80
[Data0],CHK
0x6F
0x37
0x03
0x02
[RC]
0x80
CHK
OSD Transparency (BYTE)
0 - 100
values in increments of 20
GetOSDTransparency
0x37
0x51
0x02
0xEB
0x80
CHK
0x6F
0x37
0x04
0x02
[RC]
0x80
[Data0],CHK
SetOSDLanguage
0x37
0x51
0x03
0xEA
0x81
[Data0],CHK
0x6F
0x37
0x03
0x02
[RC]
0x81
CHK
OSD Language (BYTE)
0 - English
1 - Español
2 - Français
3 - Deutsch
4 - Português (Brasil)
5 - Русский
6 - 简体中文
7 - 日本語
GetOSDLanguage
0x37
0x51
0x02
0xEB
0x81
CHK
0x6F
0x37
0x04
0x02
[RC]
0x81
[Data0],CHK
SetOSDTimer
0x37
0x51
0x03
0xEA
0x83
[Data0],CHK
0x6F
0x37
0x03
0x02
[RC]
0x83
CHK
OSD Timer (BYTE)
5 - 60 seconds
values in increments of 1
GetOSDTimer
0x37
0x51
0x02
0xEB
0x83
CHK
0x6F
0x37
0x04
0x02
[RC]
0x83
[Data0],CHK
SetOSDButtonLock
0x37
0x51
0x03
0xEA
0x84
[Data0],CHK
0x6F
0x37
0x03
0x02
[RC]
0x84
CHK
OSD Button Lock (BYTE)
0 - Unlock
1 - Lock
GetOSDButtonLock
0x37
0x51
0x02
0xEB
0x84
CHK
0x6F
0x37
0x04
0x02
[RC]
0x84
[Data0],CHK
ResetOSD
0x37
0x51
0x02
0xEA
0x8F
CHK
0x6F
0x37
0x03
0x02
[RC]
0x8F
CHK
NONE
/* SYSTEM MANAGEMENT */
GetVersionFirmware
0x37
0x51
0x02
0xEB
0xA0
CHK
0x6F
0x37
0x0A
0x02
[RC]
0xA0
[Data0],…,[Dat
a6],CHK
ASCII string
GetDDCCI
0x37
0x51
0x02
0xEB
0xA2
CHK
0x6F
0x37
0x04
0x02
[RC]
0xA2
[Data0],CHK
DDCCI (BYTE)
0 - Disabled
1 - Enabled
SetDDCCI
0x37
0x51
0x03
0xEA
0xA2
[Data0],CHK
0x6F
0x37
0x03
0x02
[RC]
0xA2
CHK
GetLCDConditioning
0x37
0x51
0x02
0xEB
0xA3
CHK
0x6F
0x37
0x04
0x02
[RC]
0xA3
[Data0],CHK
LCD Conditioning (BYTE)
0 - Disabled
1 - Enabled
SetLCDConditioning
0x37
0x51
0x03
0xEA
0xA3
[Data0],CHK
0x6F
0x37
0x03
0x02
[RC]
0xA3
CHK
FactoryReset
0x37
0x51
0x02
0xEA
0xAF
CHK
0x6F
0x37
0x03
0x02
[RC]
0xAF
CHK
NONE
Information in this document is subject to change without
notice. © 2016 Dell Inc. All rights reserved.
Reproduction of these materials in any manner whatsoever without the written permission of Dell Inc. is strictly
forbidden.
Trademarks used in this text: Dell and the DELL logo are trademarks of Dell Inc.
Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and
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Oct 2016Rev. A01