HP LD4730, LD4730G Command Reference Guide
HP LD4730 and LD4730G LCD Ultraslim Bezel Digital Signage Displays
Command Reference Guide
© 2012 Hewlett-Packard Development
Company, L.P.
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First Edition (January 2012)
Document Part Number: 680967-001
About This Guide
This guide provides information on command references for the HP LD4730 and LD4730G LCD
Ultra-slim Bezel Digital Signage Displays.
WARNING! Text set off in this manner indicates that failure to follow directions could result in bodily
harm or loss of life.
CAUTION: Text set off in this manner indicates that failure to follow directions could result in
damage to equipment or loss of information.
NOTE: Text set off in this manner provides important supplemental information.
ENWW iii
iv About This Guide ENWW
Table of contents
Command reference ........................................................................................................................................... 1
Connecting the cable ............................................................................................................................ 1
RS-232-C configurations ..................................................................................................... 1
Communication parameter .................................................................................................. 2
Command reference list ....................................................................................................................... 2
Transmission/Receiving Protocol ......................................................................................................... 4
01. Power (Command: k a) .................................................................................................. 5
02. Input Select (Command: k b) (Main Picture Input) ......................................................... 6
03. Aspect Ratio (Command: k c) (Main picture format) ...................................................... 6
04. Local Dimming (Command: j a) ..................................................................................... 6
05. Backlight (Command: m g) ............................................................................................ 7
06. Volume Control (Command: k f) .................................................................................... 7
07. Contrast (Command: k g) .............................................................................................. 8
08. Brightness (Command: k h) ........................................................................................... 8
09. Ambient Light Sensor (Command j b) ............................................................................ 8
10. Display Name (Command: v a) ...................................................................................... 9
11. Sharpness (Command: k k) ........................................................................................... 9
12. OSD Select (Command: k l) .......................................................................................... 9
13. Remote Lock/Key Lock (Command: k m) .................................................................... 10
14. Balance (Command: k t) .............................................................................................. 10
15. Color Temperature (Command: k u) ............................................................................ 11
16. Abnormal state (Command: k z) .................................................................................. 11
17. ISM Method (Command: j p) ........................................................................................ 12
18. Auto Configure (Command: j u) ................................................................................... 12
19. Key (Command: m c) ................................................................................................... 13
20. Subnet mask, NSM setup (Command: v l) .................................................................. 13
21. Tile H Position (Command: d e) ................................................................................... 13
22. Tile V Position (Command: d f) .................................................................................... 14
23. Tile H Monitors (Command: d g) .................................................................................. 14
24. Tile V Monitors (Command: d h) .................................................................................. 14
25. Display Location (Command: v b) ................................................................................ 15
26. Natural Mode (In Tile Mode) (Command: d j) .............................................................. 15
ENWW v
27. Picture Mode (Command: d x) ..................................................................................... 16
28. Sound Mode (Command: d y ) ..................................................................................... 16
29. Player Name (Command: v d ) .................................................................................... 16
30. Operating time (Command: d l) ................................................................................... 17
31. Thermal value (Command: d n) ................................................................................... 17
32. LED fault Check (Command: d p) ................................................................................ 18
33. DHCP (VOE) (Command: v e) ..................................................................................... 18
34. Speaker (Command: d v) ............................................................................................. 19
35. Time (Command: f a) ................................................................................................... 19
36. On Timer (On/Off Timer) Time (Command: f d) ........................................................... 20
37. Off Timer (On/Off Timer) Time (Command: f e) ........................................................... 21
38. Scheduling Input select (Command: f u) (Main Picture Input) ..................................... 23
39. IP Address, VOE Setup (Command: v f) ..................................................................... 24
40. Auto Detection (Command: f g) ................................................................................... 24
41. Power On Delay (Command: f h) ................................................................................. 24
42. Language (Command: f i) ............................................................................................ 25
43. DPM Select (Command: f j) ......................................................................................... 25
44. Reset (Command: f k) .................................................................................................. 26
45. Energy saving (Command: f I) ..................................................................................... 26
46. Subnet mask, VOE Setup (Command: v g) ................................................................. 27
47. Serial no. Check (Command: f y) ................................................................................. 27
48. S/W Version (Command: f z) ....................................................................................... 27
49. IP Address, NSM setup (Command: v k) ..................................................................... 28
50. Mac Address, VOE Setup (Command: v h) ................................................................. 28
51. Check VOE availability (Command: v i) ....................................................................... 28
52. Mac Address, NSM setup (Command: v j) .................................................................. 29
vi ENWW
Command reference
This chapter gives the information needed to send control commands to the display from your own
programs. Use the RS-232-C port for transmitting and receiving commands.
Connecting the cable
Use this method if you want to connect several products to a single PC so that all displays can be
controlled at once.
Connect the RS-232-C cable as shown in the following illustration. The RS-232-C protocol is used for
communication between the media player/computer and the display. You can turn the display on/off,
select an input source or adjust the OSD menu from the media player/computer.
Figure 1 Daisy chain
RS-232C
(CONTROL)
OUT
IN
1 2 3 4
RS-232-C configurations
7-Wire configurations
(Standard RS-232-C cable)
media
player/
computer
RXD 2
TXD 3
Display media
RS-232C
(CONTROL)
OUT
IN
RS-232C
(CONTROL)
OUT
IN
RS-232C
(CONTROL)
OUT
IN
3-Wire configurations
(Not Standard)
Display
player/
computer
3TXD RXD2 3TXD
2RXD TXD3 2RXD
GND 5
DTR 4
DSR 6
5GND GND5 5GND
6DSR DTR4 6DSR
4DTR DSR6 4DTR
ENWW Connecting the cable 1
7-Wire configurations
3-Wire configurations
(Standard RS-232-C cable)
RTS 7
CTS 8
D-Sub 9
(Female)
D-Sub 9
Communication parameter
Baud Rate—9600 baud rate (UART)
●
Data Length—8 bit
●
Parity Bit—None
●
Stop Bit—1 bit
●
Flow Control—None
●
Communication Code—ASCII code
●
Use a crossed (reverse) cable
●
(Not Standard)
8CTS RTS7 7CTS
7RTS CTS8 8RTS
(Female)
D-Sub 9
(Female)
D-Sub 9
(Female)
Command reference list
The table below shows the commands supported by the LD4730 and LD4730G.
COMMAND1 COMMAND2 DATA1 DATA2 DATA3
01. Power k a 00H–01H
02. Input Select k b 07H–0BH
03. Aspect Ratio k c 01H–1FH
04. Local Dimming j a 00H–01H
05. Backlight m g 00H–064H
06. Volume Control k f 00H–64H
07. Contrast k g 00H–64H
08. Brightness k h 00H–64H
09. Ambient Light Sensor j b 00H–02H
10. Display Name v a
11. Sharpness k k 00H–0AH
12. OSD Select k l 00H–01H
13. Remote Lock/Key Lock k m 00H–01H
14. Balance k t 00H–64H
2 Command reference ENWW
COMMAND1 COMMAND2 DATA1 DATA2 DATA3
15. Color Temperature k u 00H–03H
16. Abnormal State k z FFH
17. ISM Method j p 01H–08H
18. Auto Configuration j u 01H
19. Key m c Key Code
20. Subnet mask (NSM) v l
21. Tile H Position d e 1–5
22. Tile V Position d f 1–5
23. Tile H Monitors d g 1–5
24. Tile V Monitors d h 1–5
25. Display Location v b
26. Natural Mode (In Tile Mode) d j 00H–01H
27. Picture Mode (PSM) d x 00H–05H
28. Sound Mode d y 01H–02H
29. Player Name v d
30. Operating Time d l FFH
31. Thermal Value d n FFH
32. LED Fault Check d p FFH
33. DHCP (VOE) v e 00H–01H
34. Speaker d v 00H–01H
35. Time f a
36. On Timer (On/Off Timer) Time f d F1H–F4H
E0H–E4H
01H–80H
37. Off Timer (On/Off Timer) Time f e F1H–F4H
E0H–E4H
01H–80H
38. Scheduling Input Select f u F1H–F4H 07H–0BH
39. IP Address (VOE) v f
40. Auto Detection f g 00H–01H
41. Power On Delay f h 00H–01H
00H–17H 00H–3BH
00H–17H 00H–3BH
42. Language f i 00H–09H
43. DPM Select f j 00H–02H
44. Reset f k 00H–02H
ENWW Command reference list 3
COMMAND1 COMMAND2 DATA1 DATA2 DATA3
45. Energy Saving f l 00H–03H
46. Subnet mask (VOE) v g
47. Serial No. f y FFH
48. S/W Verison f z FFH
49. IP Address (NSM) v k
50. Mac Address (VOE) v h
51. Check VOE availability v I FFH
52. Mac Address (NSM) v j
53. Product Name f v FFH
Transmission/Receiving Protocol
Transmission
[Command1][Command2][][Set ID][][Data][Cr]
*[Command 1] First command (k, j, m, d, f, x, v)
*[Command 2] Second command (a to z)
*[Set ID] Set up the Set ID number of product. range: 01H to 63H. by setting
*[Data] To transmit command data.
*[Cr] Carriage Return
*[] ASCII code Space (0 x 20)
'0', server can control all products.
When operating with more than 2 sets using set ID as '0' at the
same time, do not check the ack message. Because all sets will
send the ack message, it is not possible to check all of the ack
messages.
Transmit 'FF' data to read status of command.
ASCII code '0 x 0 D'
OK Acknowledgement
[Command2][][Set ID][][OK][Data][x]
*The Product transmits ACK (acknowledgement) based on this format when receiving normal data. At
this time, if the data is in data read mode, it indicates present status data. If the data is in data write
mode, it returns the data of the media player/computer.
4 Command reference ENWW
Error Acknowledgement
[Command2][][Set ID][][NG][Data][x]
If there is an error, it returns NG
01. Power (Command: k a)
To control Power On/Off of the Set.
Transmission
[k][a][][Set ID][][Data][Cr]
[Data] 0: Power Off
1: Power On
Acknowledgement
[a][][Set ID][][OK][Data][x]
To show the status of Power On/Off.
Transmission
[k][a][][Set ID][][FF][Cr]
Acknowledgement
[a][][Set ID][][OK][Data][x]
[Data] 0: Power Off
1: Power On
ENWW Transmission/Receiving Protocol 5
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