NEC E805 External Control Codes
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- NEC E805 | External Control Codes - Page 1
EXTERNAL CONTROL NEC LCD Monitor Rev.3.8 INDEX I. Application 3 II. Preparation 4 2. Connectors and wiring 4 2.1 RS-232C Remote control 4 2.2 LAN control 4 III. Communication specification 5 3. Communication Parameter 5 3.1 RS-232C Remote control 5 3.2 LAN control 5 3.3 - NEC E805 | External Control Codes - Page 2
64 12. Serial No. & Model Name Read 66 12.1 Serial No. Read 66 12.2 Model Name Read 67 13. Security Lock 68 13.1 Security Lock Control 68 14. Direct TV Chanel Read & Write 70 14.1 Direct TV Chanel Read & Reply 70 14.2 Direct TV Chanel Write & Reply 71 (2/72) - NEC E805 | External Control Codes - Page 3
I. Application This document defines the communications method for control of the NEC LCD monitor, MultiSync P402 /P462 /P552 /P702 /V422 /V462 /V551 /V651 /V322 /V652 /V552 /X461S /X551S /X401S /X463UN /X551UN /V463 /V423 /X462S /X552S /X462UNV /V801 when using an external controller. (3/72) - NEC E805 | External Control Codes - Page 4
II. Preparation 2. Connectors and wiring 2.1 RS-232C Remote control Connector: 9-pin D-Sub Cable: Cross (reversed) cable or null modem cable (Please refer "Controlling the LCD monitor via RS-232C Remote control" on User's manual.) 2.2 LAN control Connector: RJ-45 10/100 BASE-T Cable: Category 5 or - NEC E805 | External Control Codes - Page 5
3. Communication Parameter 3.1 RS-232C Remote control (1) Communication system (2) Interface (3) Baud rate (4) Data length (5) Parity (6) Stop bit (7) Communication code Asynchronous RS-232C 9600bps 8bits None 1 bit ASCII 3.2 LAN control (1) Communication system (2) Interface (3) Communication - NEC E805 | External Control Codes - Page 6
of a typical procedure to control a monitor is as follows, [A controller and a monitor, two-way communication composition figure] For the general command (see the part "6.3. Operation Code (OP code) Table") Controller Monitor Get Parameter Header Message Check Code Delimiter Get Parameter Reply - NEC E805 | External Control Codes - Page 7
commands receiver's address. The controller sets the "MONITOR ID" or "GROUP ID" of the monitor controlled in here. On the reply, the monitor sets '0' (30h), always. "MONITOR ID", "GROUP ID" to 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 Destination Address 73h 74h 75h 76h 77h 78h 79h - NEC E805 | External Control Codes - Page 8
specify a destination address ' '(2Ah). 4thbyte) Source: Source equipment ID. (Sender) Specify a sender address. The controller must be '0' (30h). On the reply, the monitor sets the own MONITOR ID in here. 5thbyte) Message Type: (Case sensitive.) Refer to section 4.2 "Message block format" for more - NEC E805 | External Control Codes - Page 9
Refer to section 5.2 "Get parameter reply" for more details. 3 Set parameter The controller sends this message to change a setting of the monitor. Message format of the "Set parameter" is as follows, OP code STX page OP code Set Value ETX Hi Lo Hi Lo MSB LSB Refer to section 5.3 "Set - NEC E805 | External Control Codes - Page 10
section 5.5 "Commands message" for more details. 6 Command reply The monitor replies to a query from the controller. "Command reply message" format depends on each command. Refer to section 5.5 "Commands message" for more details. (10/72) - NEC E805 | External Control Codes - Page 11
type 30 45 D3 D4 Message length 30 41 D5 D6 Message STX OP code page OP code Set Value Check code Delimiter ETX (BCC) 02 30 30 31 30 30 30 36 34 03 77 0D D7 D8 D9 D10 D11 D12 D13 D14 D15 D16 D17 D18 Check code (BCC) D17 = D1 xor D2 xor D3 xor ... xor D14 xor D15 xor D16 = - NEC E805 | External Control Codes - Page 12
4.4 Delimiter Header Message Check code Packet delimiter code; ASCII CR(0Dh). Delimiter (12/72) - NEC E805 | External Control Codes - Page 13
the status of a monitor. For the status that you want to get, specify the "OP code page" the "OP code", refer to "Appendix A. Operation code table". 1stbyte) STX: Start of Message ASCII STX (02h) 2nd-3rdbytes) OP code page: Operation code page. Specify the "OP code page" for the control which you - NEC E805 | External Control Codes - Page 14
The byte data 01h is encoded to ASCII character '0' and '1' (30h and 31h). 4th-5thbytes) OP code page: Operation code page. These bytes indicate a replying item's OP code page. This returned value from the monitor is encoded to ASCII characters. Ex.) The byte data 02h is encoded to ASCII character - NEC E805 | External Control Codes - Page 15
4th-5th 6th-9th 10th Send this message to change monitor's adjustment and so on. The controller requests a monitor to change value. 1stbyte) STX: Start of Message ASCII STX (02h) 2nd-3rdbytes) OP code page: Operation code page This OP code page data must be encoded to ASCII characters. Ex - NEC E805 | External Control Codes - Page 16
ASCII '0' and '2' (30h and 32h) Refer to Operation code table. 6th-7thbytes) OP code: Echoes back the Operation code for confirmation. Reply data from the monitor is encoded to ASCII characters. Ex.) OP code 1Ah -> OP code (Hi) = ASCII '1' (31h) OP code (Lo) = ASCII 'A' (41h) Refer to Operation - NEC E805 | External Control Codes - Page 17
each command. Some commands are shown with usage. Refer to section 7 to 13. 5.5.1 Save Current Settings. The controller requests for the monitor to store the adjusted value. Command code STX ETX '0' 'C' Send "OC"(30h, 43h) as Save current settings command. Complete "Save Current setting - NEC E805 | External Control Codes - Page 18
5.5.2 Get Timing Report and Timing reply. The controller requests the monitor to report the displayed image timing. Command code STX ETX '0' '7' Send "07"(30h, 37h) as Get Timing Report command. Complete "Get Timing Report" command packet as follows; ASCII: 01h-30h-41h-30h-41h- - NEC E805 | External Control Codes - Page 19
5.5.3 NULL Message Command code STX ETX 'B' 'E' The NULL message returned from the monitor is used in the following cases; To tell the controller that the monitor does not have any answer to give to the host (not ready or not expected) Following operations need a certain time for to - NEC E805 | External Control Codes - Page 20
the "Backlight" setting. Step 1. The controller requests the Monitor to reply with the current brightness setting and capability to support this operation. (Get parameter) Header Message SOH-'0'-Monitor ID-'0'-'C'-'0'-'6' STX-'0'-'0'-'1'-'0'-ETX Check code BCC Delimiter CR Header SOH (01h - NEC E805 | External Control Codes - Page 21
of packet Step 3. The controller request the monitor to change the Backlight setting Header Message SOH-'0'-Monitor ID-'0'-'E'-'0'-'A' STX-'0'-'0'-'1'-'0'-'0'-'0'-'5'-'0'-ETX Check code BCC Header SOH (01h): Start Of Header '0' (30h): Reserved Monitor ID: Specify the Monitor ID of which you - NEC E805 | External Control Codes - Page 22
Message STX-'0-'C'-ETX Check code Delimiter BCC CR Header SOH (01h): Start Of Header '0' (30h): Reserved Monitor ID: Specify the Monitor ID which you want to store the setting. Ex.) If Monitor ID is '1', specify 'A'. '0' (30h): Message sender is the controller. 'A' (41h): Message type is - NEC E805 | External Control Codes - Page 23
ID-'F'-'1'-'2' Message STX-'0'-'0'-'0'-'2'-'7'-'8'-'0'-'0'-'0'-'0' -'0'-'3'-'0'-'0'-'0'-'1'-ETX Check code BCC Header SOH (01h): Start of Header '0' (30h): Reserved '0' (30h): Message receiver is the controller. Monitor ID: Indicates a replying Monitor ID. Ex.) When this byte is set to 'A', the - NEC E805 | External Control Codes - Page 24
, 30h, 31h): temperature sensor is #1. ETX (03h): End of Message Check code BCC: Block Check Code Refer to the section 4.5 "Check code" for a BCC calculation. Delimiter CR (0Dh): End of packet Step 3. The controller requests the monitor to send the temperature from the selected sensor. Header SOH - NEC E805 | External Control Codes - Page 25
1111 1111 1111 1111 1111 1100 1110 1111 1111 1001 0010 Hexadecimal 00FAh 0032h 0001h 0000h FFFFh FFCEh FF92h ETX (03h): End of Message Check code BCC: Block Check Code Refer to the section 4.5 "Check code" for a BCC calculation. Delimiter CR (0Dh): End of packet (25/72) - NEC E805 | External Control Codes - Page 26
Table Item Backlight Contrast Sharpness Brightness Hue Color Color Temperature Color control Gamma Correction Movie Adaptive Settings Contrast Noise Reduction Telecine Picture mode OP OP code Parameter cod e pag e 00h 10h 0: dark | 100(64h): bright 00h 12h 0: low | 100(64h): high - NEC E805 | External Control Codes - Page 27
Item Ambient OP OP code cod e pag e Ambient 10h 33h Brightness Low Ambient 10h 34h Brightness High Get | Max. : 0: | Max. : 0: Low | Max. : High 0: Low | Max.: High Remarks Read only Read only Momentary Momentary Depends on a display timing Depends on a display timing ADJUST (27/72) - NEC E805 | External Control Codes - Page 28
AUDIO Item Input Resolution OP OP code Parameter cod e pag e 02h DAh Input Resolution select 0:no mean 1:Item 1(always Auto) 2:Item 2 3:Item 3 4:Item 4 5:Item 5 Over5:Ignore Aspect 02h 70h Zoom Control Zoom 02h 6Fh Zoom 02h 6Ch H-Expansion Zoom 02h 6Dh V-Expansion Zoom H- - NEC E805 | External Control Codes - Page 29
tree reset (Schedule) Keep PIP Mode PIP Mode PIP Size OP OP code cod e pag e 00h 93h 00h 8Fh 00h 91h 10h 80h 10h Low (or On) 3: High (or On) 1: Audio 1(PC) 2: Audio 2 3: Audio 3 4: HDMI 6: TV/Option 7: Display Port 0: None 4: Reset Audio category 0: Off 1: 1 hour | 24: 24 hours 0: No Mean 1: No.1 - NEC E805 | External Control Codes - Page 30
Detect Fade In PIP Input(Sub input) Menu tree reset (PIP) Language Menu Display Time OP OP code cod e pag e 02h 74h 02h 75h 10h 83h 10h 08h 10h 09h 10h Remarks This operation has limitation of selection. Please refer to the monitor instruction manual. Momentary OSD Language 5sec/step - NEC E805 | External Control Codes - Page 31
DISPLAY Item OSD Position H Position V Position Information OSD OSD Transparency OSD Rotation Closed Caption Menu tree reset (OSD) Monitor ID Group ID OP OP code Group AC 1023:Group ABCDEFGHIJ IR Control 02h 3Fh Tile Matrix H monitor 02h D0h V monitor 02h D1h Position 02h D2h Tile - NEC E805 | External Control Codes - Page 32
ID=All Reply Setting copy Menu tree reset (Multi Display) Power Save Video Power Save Fan Control Fan Speed Screen Saver Gamma Brightness Motion Side Border Color Auto Brightness Alert Mail Menu tree reset (Display Protection) Input Detect OP OP code cod e pag e 10h 4Ah 02h D8h 02h BEh - NEC E805 | External Control Codes - Page 33
Input change Terminal Setting DVI Mode BNC Mode OP OP code cod e pag e 10h 2Eh 10h 2Fh 10h 30h only) 5: Video1 6: Video2 7: S-Video 12(0Ch): DVD/HD1 13(0Dh): Option 14(0Eh): DVD/HD2 15(0Fh): Display Port 17(11h): HDMI 0: No operate 1: Normal 2: Quick 1: DVI-PC 2: DVI-HD 0: No operate 1: RGB 2: - NEC E805 | External Control Codes - Page 34
MTS Sound Picture Mode Aspect PIP ON/OFF Still ON/OFF OP OP code 15(0Fh): Display Port 17(11h): HDMI 1: Audio 1(PC) 2: Audio 2 3: Audio 3 4: HDMI 6: TV/Option 7: Display Port 0: (Full) (34/72) Remarks This operation requires supported option TV tuner. Same as 'SURROUND' sRGB: PC mode only - NEC E805 | External Control Codes - Page 35
code cod e pag e Parameter PIP Input 02h 73h 0: No mean 1: VGA 2: RGB/HV 3: DVI 4: HDMI (Set only) 5: Video1 6: Video2 7: S-Video 12(0Ch): DVD/HD1 13(0Dh): Option 14(0Eh): DVD/HD2 15(0Fh): Display monitor instruction manual. Momentary Momentary This operation requires supported option TV - NEC E805 | External Control Codes - Page 36
7.1 Power status read 1) The controller requests the monitor to reply a current power status. Header SOH-'0'-Monitor ID-'0'-'A'-'0'-'6' Message Check code STX-'0'-'1'-'D'-'6'-ETX BCC Header SOH (01h): Start Of Header '0' (30h): Reserved Monitor ID: Specify the Monitor ID from which you want to - NEC E805 | External Control Codes - Page 37
CR (0Dh): End of packet (37/72) - NEC E805 | External Control Codes - Page 38
Power control 1) The controller requests the monitor to control monitor power. Header SOH-'0'-Monitor ID-'0'-'A'-'0'-'C' Message STX-'C'-'2'-'0'-'3'-'D'-'6''0'-'0'-'0'-'1'-ETX Check code Delimiter BCC CR Header SOH (01h): Start Of Header '0' (30h): Reserved Monitor ID: Specify the Monitor ID - NEC E805 | External Control Codes - Page 39
Delimiter CR (0Dh): End of packet (39/72) - NEC E805 | External Control Codes - Page 40
reply This command is used in order to read Asset Data. 1) The controller requests the monitor to reply with Asset data. Header SOH-'0'-Monitor ID-'0'-'A'-'0'-'A' Message STX-'C'-'0'-'0'-'B'-'0'-'0'-'2'-'0'-ETX Check code BCC Delimiter CR Header SOH (01h): Start Of Header '0' (30h): Reserved - NEC E805 | External Control Codes - Page 41
Refer to the section 4.5 "Check code" for a BCC calculation. Delimiter CR (0Dh): End of packet (41/72) - NEC E805 | External Control Codes - Page 42
write This command is used in order to write Asset Data. 1) The controller requests the monitor to write Asset data. Header SOH-'0'-Monitor ID-'0'-'A'-N-N Message STX-'C'-'0'-'0'-'E'-'0'-'0'Data(0)-Data(1)---Data(N)-ETX Check code BCC Delimiter CR Header SOH (01h): Start Of Header '0' (30h - NEC E805 | External Control Codes - Page 43
CR (0Dh): End of packet (43/72) - NEC E805 | External Control Codes - Page 44
This command is used in order to read the setting of Date & Time. 1) The controller requests the monitor to reply with the Date & Time. Header Message Check code SOH-'0'-Monitor STX-'C'-'2'-'1'-'1'-ETX BCC ID-'0'-'A'-'0'-'6' Delimiter CR Header SOH (01h): Start Of Header '0' (30h): Reserved - NEC E805 | External Control Codes - Page 45
'0'-'0'(30h, 30h): 0 | '3'-'B' (33h, 42h): 59 (=3Bh) DS: Daylight saving (Summer time) '0'-'0'(30h, 30h): NO '0'-'1'(30h, 31h): YES ETX (03h): End of Message Check code BCC: Block Check Code Refer to the section 4.5 "Check code" for a BCC calculation. Delimiter CR (0Dh): End of packet (45/72) - NEC E805 | External Control Codes - Page 46
used in order to write the setting of the Date & Time. 1) The controller requests the monitor to write Date & Time. Header SOH-'0'-Monitor ID-'0'-'A'-'1'-'2' Message STX-'C'-'2'-'1'-'2'-YY-MM-DD-WW-HH-MN -DS-ETX Check code BCC Delimiter CR Header SOH (01h): Start Of Header '0' (30h): Reserved - NEC E805 | External Control Codes - Page 47
-DD-WW-HH-MN -DS-ETX Check code BCC Delimiter CR Header SOH (01h): Start Of Header '0' (30h): Reserved '0' (30h): Message receiver is the controller. Monitor ID: Indicate a replying Monitor ID. Ex.) When this byte is set to 'A', the replying Monitor ID is '1'. 'B' (42h): Message type is "Command - NEC E805 | External Control Codes - Page 48
Delimiter CR (0Dh): End of packet (48/72) - NEC E805 | External Control Codes - Page 49
strings. ETX (03h): End of Message Check code BCC: Block Check Code Refer to the section 4.5 "Check code" for a BCC calculation. Delimiter CR (0Dh): End of packet 2) The monitor replies Schedule to the controller. Header SOH-'0'-'0'-Monitor ID-'B'-'2'-'6' Message STX-'C'-'3'-'2'-'1'-PG-ON HOUR-ON - NEC E805 | External Control Codes - Page 50
30h,37h): S-Video '0'-'A'(30h,41h): TV '0'-'C'(30h,43h): DVD/HD1 '0'-'D'(30h,44h): Option '0'-'E'(30h,45h): DVD/HD2 '0'-'F'(30h,46h): Display Port '1'-'1'(31h,31h): HDMI WD: '0'-'C'(30h,43h): Ambient-2 EXT1: Extension1 '0'-'0'(30h,30h): (On this monitor, it is always '00') EXT2: Extension 2 (50/72) - NEC E805 | External Control Codes - Page 51
'00') EXT6: Extension 6 '0'-'0'(30h,30h): (On this monitor, it is always '00') EXT7: Extension 7 '0'-'0'(30h,30h): (On this monitor, it is always '00') ETX (03h): End of Message Check code BCC: Block Check Code Refer to the section 4.5 "Check code" for a BCC calculation. Delimiter CR (0Dh): End of - NEC E805 | External Control Codes - Page 52
to keep backward compatibility, in order to read the setting of the Schedule. 1) The controller requests the monitor to read Schedule. Header Message SOH-'0'-Monitor ID-'0'-'A'-'0'-'8' STX-'C'-'2'-'1'-'3'-PG-ETX Check code BCC Delimiter CR Header SOH (01h): Start Of Header '0' (30h): Reserved - NEC E805 | External Control Codes - Page 53
1:Everyday bit 1: 0:once 1:Every week bit 2: 0:Disable 1:Enable EX. '0'-'1'(30h, 31h): Disable, Everyday '0'-'4'(30h, 34h): Enable, once ETX (03h): End of Message Check code BCC: Block Check Code Refer to the section 4.5 "Check code" for a BCC calculation. Delimiter CR (0Dh): End of packet (53/72) - NEC E805 | External Control Codes - Page 54
code BCC Delimiter CR Header SOH (01h): Start Of Header '0' (30h): Reserved Monitor ID: Specify the Monitor ID of which you want to change a setting. Ex.) If Monitor ID is '1', specify 'A'. '0' (30h): Message sender is the controller Video '0'-'A'(30h,41h): TV '0'-'C'(30h,43h): DVD/HD1 '0'-'D'(30h - NEC E805 | External Control Codes - Page 55
, it is always '00') EXT6: Extension 6 '0'-'0'(30h,30h): (On this monitor, it is always '00') EXT7: Extension 7 '0'-'0'(30h,30h): (On this monitor, it is always '00') ETX (03h): End of Message Check code BCC: Block Check Code Refer to the section 4.5 "Check code" for a BCC calculation. (55/72) - NEC E805 | External Control Codes - Page 56
code BCC Delimiter CR Header SOH (01h): Start Of Header '0' (30h): Reserved '0' (30h): Message receiver is the controller. Monitor ID: Indicate a replying Monitor 30h,41h): TV '0'-'C'(30h,43h): DVD/HD1 '0'-'D'(30h,44h): Option '0'-'E'(30h,45h): DVD/HD2 '0'-'F'(30h,46h): Display Port '1'-'1'(31h, - NEC E805 | External Control Codes - Page 57
: Extension 7 '0'-'0'(30h,30h): (On this monitor, it is always '00') ETX (03h): End of Message Check code BCC: Block Check Code Refer to the section 4.5 "Check code" for a BCC calculation. Delimiter CR (0Dh): End of packet 3) The controller requests the monitor to write Enable/Disable Schedule. (57 - NEC E805 | External Control Codes - Page 58
for confirmation. Header Message SOH-'0'-'0'-Monitor ID-'B'-'0'-'C' STX-'C'-'3'-'1'-'5'-ST-PG-EN-ETX Check code BCC Delimiter CR Header SOH (01h): Start Of Header '0' (30h): Reserved '0' (30h): Message receiver is the controller. Monitor ID: Indicate a replying Monitor ID. Ex.) When this byte - NEC E805 | External Control Codes - Page 59
Delimiter CR (0Dh): End of packet (59/72) - NEC E805 | External Control Codes - Page 60
order to write the setting of the Schedule. 1) The controller requests the monitor to write Schedule. Header SOH-'0'-Monitor ID-'0'-'A'-'1'-'6' Message STX-'C'-'2'-'1'-'4'-PG-ON HOUR-ON MINOFF HOUR-OFF MIN-INPUT-WD-FL-ETX Check code Delimiter BCC CR Header SOH (01h): Start Of Header '0' (30h - NEC E805 | External Control Codes - Page 61
STX-'C'-'3'-'1'-'4'-ST-PG-ON HOUR-ON MIN- OFF HOUR-OFF MIN-INPUT-WD-FL-ETX Check code BCC Delimiter CR Header SOH (01h): Start Of Header '0' (30h): Reserved '0' (30h): Message receiver is the controller. Monitor ID: Indicate a replying Monitor ID. Ex.) When this byte is set to 'A', the replying - NEC E805 | External Control Codes - Page 62
for a BCC calculation. Delimiter CR (0Dh): End of packet 3) The controller requests the monitor to write Enable/Disable Schedule. Header Message Check code Delimiter SOH-'0'-Monitor ID-'0'-'A'-'0'-'A' STX-'C'-'2'-'1'-'5'-PG-EN-ETX BCC CR Header SOH (01h): Start Of Header '0' (30h): Reserved - NEC E805 | External Control Codes - Page 63
for confirmation. Header Message SOH-'0'-'0'-Monitor ID-'B'-'0'-'C' STX-'C'-'3'-'1'-'5'-ST-PG-EN-ETX Check code BCC Delimiter CR Header SOH (01h): Start Of Header '0' (30h): Reserved '0' (30h): Message receiver is the controller. Monitor ID: Indicate a replying Monitor ID. Ex.) When this byte - NEC E805 | External Control Codes - Page 64
read This command is used in order to read the Self-diagnosis status. 1) The controller requests the monitor to read Self-diagnosis status. Header Message Check code SOH-'0'-Monitor ID-'0'-'A'-'0'-'4' STX-'B'-'1'-ETX BCC Delimiter CR Header SOH (01h): Start of Header '0' (30h): Reserved - NEC E805 | External Control Codes - Page 65
ETX (03h): End of Message Check code BCC: Block Check Code Refer to the section 4.5 "Check code" for a BCC calculation. Delimiter CR (0Dh): End of packet (65/72) - NEC E805 | External Control Codes - Page 66
.1 Serial No. Read This command is used in order to read a serial number. 1) The controller requests the monitor to read a serial number. Header Message Check code SOH-'0'-Monitor ID-'0'-'A'-'0'-'6' STX-'C'-'2'-'1'-'6'-ETX BCC Delimiter CR Header SOH (01h): Start Of Header '0' (30h): Reserved - NEC E805 | External Control Codes - Page 67
12.2 Model Name Read This command is used in order to read the Model Name. 1) The controller requests the monitor to read Model Name. Header Message SOH-'0'-Monitor ID-'0'-'A'-'0'-'6' STX-'C'-'2'-'1'-'7'-ETX Check code Delimiter BCC CR Header SOH (01h): Start Of Header '0' (30h): Reserved - NEC E805 | External Control Codes - Page 68
cords (and releases image muting if Pass codes are OK) and doesn't apply "EN" parameter. 1) The controller requests the monitor to set the condition of security lock. Header Message Check code SOH-'0'-MonitorID-'0'-'A'-'1'-'0' STX-'C'-'2'-'1'-'D'-EN-P1-P2-P3-P4-ETX BCC Delimiter CR Header - NEC E805 | External Control Codes - Page 69
STX-'C'-'3'-'1'-'D'-ST-EN-ETX Check code Delimiter BCC CR Header SOH (01h): Start of Header '0' (30h): Reserved '0' (30h): Message receiver is the controller. Monitor ID: Indicate a replying Monitor ID. Ex.) When this byte is set to 'A', the replying Monitor ID is '1'. 'B' (42h): Message type - NEC E805 | External Control Codes - Page 70
TV Chanel Read & Reply 1) The controller requests the monitor to read channel information. Header Message Check code SOH-'0'-Monitor The monitor replies the result to the controller. Header SOH-'0'-'0'-Monitor ID-'B'-'1'-'2' Message STX-'C'-'3'-'2'-'C'-MajorCH-MinorCH-ETX Check code Delimiter - NEC E805 | External Control Codes - Page 71
Direct TV Chanel Write & Reply 1) The controller requests the monitor to write channel information. Header SOH-'0'-Monitor ID-'0'-'A'-'1'-'2' Message STX-'C'-'2'-'2'-'D'-MajorCH-MinorCH-ETX Check code BCC Header SOH (01h): Start Of Header '0' (30h): Reserved Monitor ID: Specify the Monitor ID - NEC E805 | External Control Codes - Page 72
All data are subject to change without notice. (June. 28, 2013) Copyright 2004-2013 NEC Display Solutions, Ltd. All Right Reserved This document provides the technical information for users. NEC Display Solutions, Ltd. reserves the right to change or modify the information contained herein without
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EXTERNAL CONTROL
NEC LCD Monitor
Rev.3.8
INDEX
I. Application
................................................................................
3
II. Preparation
...............................................................................
4
2. Connectors and wiring
....................................................................
4
2.1 RS-232C Remote control
...............................................................
4
2.2 LAN control
...........................................................................
4
III. Communication specification
...............................................................
5
3. Communication Parameter
................................................................
5
3.1 RS-232C Remote control
...............................................................
5
3.2 LAN control
...........................................................................
5
3.3 Communication timing
.................................................................
5
4. Communication Format
...................................................................
6
4.1 Header block format (fixed length)
......................................................
7
4.2 Message block format
.................................................................
9
4.3 Check code
..........................................................................
11
4.4 Delimiter
............................................................................
12
5. Message type
...........................................................................
13
5.1 Get current Parameter from a monitor.
.................................................
13
5.2 "Get parameter" reply
.................................................................
14
5.3 Set parameter
........................................................................
15
5.4 "Set parameter" reply
.................................................................
16
5.5 Commands
...........................................................................
17
5.5.1
Save Current Settings
.............................................................
17
5.5.2 Get Timing Report and Timing reply.
................................................
18
5.5.3 NULL Message
....................................................................
19
IV. Control Commands
.......................................................................
20
6. Typical procedure example
...............................................................
20
6.1. How to change the
“
Backlight
”
setting.
................................................
20
6.2. How to read the measurement value of the built-in temperature sensors.
..................
23
6.3. Operation Code (OP code) Table
.......................................................
26
7. Power control procedure
.................................................................
36
7.1 Power status read
....................................................................
36
7.2 Power control
........................................................................
38
8. Asset Data read and write
................................................................
40
8.1 Asset Data Read Request and reply
....................................................
40
8.2 Asset Data write
.....................................................................
42