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HP LD4730 LD4730 and LD4730G LCD Ultraslim Bezel Digital Signage Displays Comm - Page 7

Command reference

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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 RS-232C (CONTROL) OUT RS-232C (CONTROL) OUT RS-232C (CONTROL) OUT IN IN IN IN 1 2 3 4 RS-232-C configurations 7-Wire configurations (Standard RS-232-C cable) media player/ computer Display RXD 2 3 TXD 3 2 GND 5 5 DTR 4 6 DSR 6 4 TXD RXD GND DSR DTR 3-Wire configurations (Not Standard) media player/ computer Display RXD 2 3 TXD TXD 3 2 RXD GND 5 5 GND DTR 4 6 DSR DSR 6 4 DTR ENWW Connecting the cable 1

Section	Page
Command reference	7
Connecting the cable	7
RS-232-C configurations	7
Communication parameter	8
Command reference list	8
Transmission/Receiving Protocol	10
01. Power (Command: k a)	11
02. Input Select (Command: k b) (Main Picture Input)	12
03. Aspect Ratio (Command: k c) (Main picture format)	12
04. Local Dimming (Command: j a)	12
05. Backlight (Command: m g)	13
06. Volume Control (Command: k f)	13
07. Contrast (Command: k g)	14
08. Brightness (Command: k h)	14
09. Ambient Light Sensor (Command j b)	14
10. Display Name (Command: v a)	15
11. Sharpness (Command: k k)	15
12. OSD Select (Command: k l)	15
13. Remote Lock/Key Lock (Command: k m)	16
14. Balance (Command: k t)	16
15. Color Temperature (Command: k u)	17
16. Abnormal state (Command: k z)	17
17. ISM Method (Command: j p)	18
18. Auto Configure (Command: j u)	18
19. Key (Command: m c)	19
20. Subnet mask, NSM setup (Command: v l)	19
21. Tile H Position (Command: d e)	19
22. Tile V Position (Command: d f)	20
23. Tile H Monitors (Command: d g)	20
24. Tile V Monitors (Command: d h)	20
25. Display Location (Command: v b)	21
26. Natural Mode (In Tile Mode) (Command: d j)	21
27. Picture Mode (Command: d x)	22
28. Sound Mode (Command: d y )	22
29. Player Name (Command: v d )	22
30. Operating time (Command: d l)	23
31. Thermal value (Command: d n)	23
32. LED fault Check (Command: d p)	24
33. DHCP (VOE) (Command: v e)	24
34. Speaker (Command: d v)	25
35. Time (Command: f a)	25
36. On Timer (On/Off Timer) Time (Command: f d)	26
37. Off Timer (On/Off Timer) Time (Command: f e)	27
38. Scheduling Input select (Command: f u) (Main Picture Input)	29
39. IP Address, VOE Setup (Command: v f)	30
40. Auto Detection (Command: f g)	30
41. Power On Delay (Command: f h)	30
42. Language (Command: f i)	31
43. DPM Select (Command: f j)	31
44. Reset (Command: f k)	32
45. Energy saving (Command: f I)	32
46. Subnet mask, VOE Setup (Command: v g)	33
47. Serial no. Check (Command: f y)	33
48. S/W Version (Command: f z)	33
49. IP Address, NSM setup (Command: v k)	34
50. Mac Address, VOE Setup (Command: v h)	34
51. Check VOE availability (Command: v i)	34