NEC LCD4620-2-IT LCD4020/4620/5220/6520, M40/M46 external control commands
NEC LCD4620-2-IT - MultiSync - 46" LCD Flat Panel Display Manual
UPC - 805736021950
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NEC LCD4620-2-IT manual content summary:
- NEC LCD4620-2-IT | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 1
of the NEC LCD monitor, MultiSync LCD4020/4620/5220/6520 and MULTEOS M40/46 when using an external controller. 2. Connectors and wiring Connector: D-Sub 9-pin Cable: Cross (reversed) cable or null modem cable (Please refer "Using the LCD with RS-232C" on each User's manual.) 3. Communication - NEC LCD4620-2-IT | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 2
2nd 3rd 4th 5th 6th -7th 1stbyte) SOH: Start of Header ASCII SOH (01h) 2ndbyte) Reserved: Reserved for future extensions. On this monitor, it must be ASCII '0'(30h). 3rdbyte) Destination: Destination equipment ID. (Receiver) Specify a commands receiver's address. This value must match the - NEC LCD4620-2-IT | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 3
7 8 9 10 11 12 13 ALL Destination Address (ASCII) 'A'(41h) 'B'(42h) 'C'(43h) 'D'(44h) 'E'(45h) 'F'(46h) 'G'(47h) 'H'(48h) 'I'(49h) 'J'(4Ah) 'K'(4Bh) 'L'(4Ch) 'M'(4Dh) '*'(2Ah) Monitor ID 14 15 16 17 18 19 20 21 22 23 24 25 26 Destination Address (ASCII) 'N'(4Eh) 'O'(4Fh) 'P'(50h) 'Q'(51h) 'R'(52h - NEC LCD4620-2-IT | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 4
MSB LSB MSB LSB 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, STX OP code page OP code Set Value ETX Hi Lo Hi Lo MSB LSB Refer - NEC LCD4620-2-IT | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 5
"Command reply message" format depends on each command. Refer to section 5.5 "Commands message" for more details. 4.5 Check code Header Message Check code Delimiter Check code is the Block Check Code (BCC) between the Header and the End of Message except SOH. SOH Reserved Destination Source Type - NEC LCD4620-2-IT | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 6
4th-5th 6th Send this message when you want to get the status of a monitor. For the status that you want to get, specify the "OP code page" 3rd 4th-5th 6th -7th 8th -9th 10th -13th 14th -17th 18th The monitor replies with a current value and the status of the requested item (operation code). - NEC LCD4620-2-IT | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 7
(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 '0' and '2' (30h and 32h). Refer to the operation code table - NEC LCD4620-2-IT | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 8
-9th MSB LSB 10th-13th MSB LSB 14th -17th 18th The Monitor echoes back the parameter and status of the requested operation code. 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) - NEC LCD4620-2-IT | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 9
packet as follows; ASCII: 01h-30h-41h-30h-41h-30h-34h-02h-30h-37h-03h-CHK-0Dh SOH-'0'-'A'-'0'-'A'-'0'-'4'-STX-'0'-'7'-ETX-CHK- CR The monitor replies status as the following format; STX Command SS '4' 'E' Hi Lo MSB H Freq. SS: Timing status byte Bit 7 = 1: Sync Frequency is out of - NEC LCD4620-2-IT | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 10
change the "Brightness" 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 - NEC LCD4620-2-IT | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 11
Delimiter CR (0Dh): End of packet Step 2. The monitor replies with current Brightness setting and capability to support this operation. Header SOH-'0'-'0'-Monitor ID-'D'-'1'-'2' Message STX-'0'-'0'-'0'-'0'-'1'-'0'-'0'-'0' -'0'-'0'-'6'-'4'-'0'-'0'-'3'-'2'-ETX Check code BCC Delimiter CR Header - NEC LCD4620-2-IT | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 12
of packet 6.2. How to read the measurement value of the built-in temperature sensors. MultiSync LCD4020/4620/5220/6520 has three, or MULTEOS M40/46 has two built-in temperature sensors. The controller can monitor inside temperatures by using those sensors through RS-232C. The following shows the - NEC LCD4620-2-IT | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 13
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 replying Monitor ID is '1'. 'F' (46h): Message Type is "Set parameter reply". '1'-'2' (31h, 32h): Message length is - NEC LCD4620-2-IT | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 14
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'. 'D' (44h): Message Type is "Get parameter reply". '1'-'2' (31h, 32h): Message length - NEC LCD4620-2-IT | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 15
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 reply". '1'-'2' (31h, 32h): Message length is 18 - NEC LCD4620-2-IT | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 16
(02h): Start of Message '0'-'0' (30h, 30h): Result code. No error. 'C'-'2','0'-'3'-'D'-'6' (43h, 32h, 30h, 33h, 44h, 36h): power control reply command The monitor replies same as power control command to the controller. '0'-'0'-'0'-'1' (30h, 30h, 30h, 31h): Power mode 0001: ON 0002, 0003: Do not - NEC LCD4620-2-IT | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 17
Request and 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 - NEC LCD4620-2-IT | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 18
): Message sender is the controller. 'A' (41h): Message type is "Command". N-N: Message length Note.) The maximum data length that can be written to the monitor at a time is 32bytes. Ex.) The byte data 20h is encoded as ASCII characters '2' and '0' (32h and 30h). Message STX (02h): Start of Message - NEC LCD4620-2-IT | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 19
Code Refer to the section 4.5 "Check code" for a BCC calculation. Delimiter CR (0Dh): End of packet 2) The monitor replies Date & Time to the controller. Header SOH-'0'-'0'-Monitor ID-'B'-'1'-'4' Message STX-'C'-'3'-'1'-'1'-YY-MM-DD-WW-HH-MM -DS-ETX Check code Delimiter BCC CR Header SOH (01h - NEC LCD4620-2-IT | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 20
Time Write This command is 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 - NEC LCD4620-2-IT | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 21
Check Code Refer to the section 4.5 "Check code" for a BCC calculation. Delimiter CR (0Dh): End of packet 2) The monitor replies a data for confirmation. Header Message SOH-'0'-'0'-Monitor ID-'B'-'1'-'6' STX-'C'-'3'-'1'-'2'-ST-YY-MM-DD-WW-HH-MN -DS-ETX Check code BCC Delimiter CR Header SOH - NEC LCD4620-2-IT | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 22
Read This command is used 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 LCD4620-2-IT | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 23
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 reply". '1'-'6'(31h, 36h): Message length Message - NEC LCD4620-2-IT | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 24
10.2 Schedule Write This command is used in 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 HOURS-ON MIN-OFF HOURS-OFF MIN-INPUT-WD-FL-ETX Check code BCC Delimiter - NEC LCD4620-2-IT | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 25
Check Code Refer to the section 4.5 "Check code" for a BCC calculation. Delimiter CR (0Dh): End of packet 2) The monitor replies a data for confirmation. Header Message SOH-'0'-'0'-Monitor ID-'B'-'1'-'8' STX-'C'-'3'-'1'-'4'-ST-PG-ON HOURS-ON MIN-OFF HOURS-OFF MIN-INPUT-WD-FL-ETX Check code - NEC LCD4620-2-IT | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 26
STX (02h): Start of Message 'C'-'3'-'1'-'4' (43h, 33h, 31h, 34h): Schedule writes reply command ST: Schedule Status command '0'-'0'(30h, 30h): No error '0'-'1'(30h, 31h): Error PG-ON HOURS-ON MIN-OFF HOURS-OFF MIN-INPUT-WD-FL: Schedule data PG: Program No. '0'-'0'(30h, 30h): Program No.1 | '0'-'6'( - NEC LCD4620-2-IT | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 27
Code Refer to the section 4.5 "Check code" for a BCC calculation. Delimiter CR (0Dh): End of packet 4) The monitor replies a data 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 - NEC LCD4620-2-IT | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 28
ID is '1'. 'B' (42h): Message type is "Command reply". N-N: Message length Note.) The maximum data length that can be written to the monitor at a time is 32bytes. Ex.) The byte data 20h is encoded as ASCII characters '2' and '0' (34h and 30h). Message STX (02h): Start of Message 'A'-'1' (41h, - NEC LCD4620-2-IT | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 29
ID-'0'-'A'-'0'-'6' STX-'C'-'2'-'1'-'6'-ETX BCC Delimiter CR Header SOH (01h): Start Of Header '0' (30h): Reserved Monitor ID: Specify the Monitor ID which you want to get serial number. Ex.) If Monitor ID is '1', specify 'A'. '0' (30h): Message sender is the controller. 'A' (41h): Message type is - NEC LCD4620-2-IT | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 30
'1'. 'B' (42h): Message type is "Command reply". N-N: Message length Note.) The maximum data length that can be returned from the monitor at a time is 32bytes. Ex.) The byte data 20h is encoded as ASCII characters '2' and '0' (32h and 30h). Message STX (02h): Start of Message 'C'-'3'-'1'-'7' (43h - NEC LCD4620-2-IT | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 31
Lock Control This command sets the condition of security lock function to "LOCK" or "UNLOCK". If security pass codes 1st to 4th are matched with monitor resisted pass codes, then this command is executed, and reply no error status and a new condition. If codes aren't matched with them then setting - NEC LCD4620-2-IT | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 32
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 reply". '0'-'A'(30h, 41h): Message length Message - NEC LCD4620-2-IT | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 33
Appendix A. Operation Code (OP code) Table Item Brightness OP code page 00h Contrast 00h Sharpness 00h Black Level 00h Tint 00h Color 02h Color Temperature 00h Color control 00h PICTURE Gamma Selection 02h Adaptive Contrast 02h Movie Noise 02h Settings Reduction Film - NEC LCD4620-2-IT | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 34
AUDIO Item Clock OP code page 00h OP code 0Eh Clock Phase 00h 3Eh H Resolution 02h 50h V Resolution 02h 51h Zoom Mode Base Zoom 02h CEh Zoom 02h 6Fh Zoom 02h 6Ch H-Expansion Zoom 02h 6Dh V-Expansion Zoom 02h CCh H-Position Zoom 02h CDh V-Position Input Resolution - NEC LCD4620-2-IT | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 35
OS D PI P SCHDULE Item Off Timer Enable Schedule Disenable Schedule Menu tree reset (Schedule) Keep PIP Mode PIP Mode OP code page 02h OP code 2Bh 02h E5h 02h E6h 02h CBh 02h 72h PIP Size 02h 71h Text Ticker Mode 10h 08h Position 10h 09h Size 10h 0Ah Blend 10h 0Bh - NEC LCD4620-2-IT | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 36
OSD OP code page 02h OP code 39h 02h 3Dh OSD Transparency 02h B8h Menu tree reset (OSD) Monitor ID IR Control 02h CBh 02h 3Eh 02h 3Fh Tile Matrix H monitor 02h D0h V monitor 02h D1h Position 02h D2h Tile comp 02h D5h Mode 02h D3h Power On Delay Power Indicator Menu tree - NEC LCD4620-2-IT | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 37
Protection) Input Detect Long Cable ON/OFF Long Cable Manual R,G,B Delay R,G,B Sharpness SOG Peak VIDEO EQ. DVI 02h E3h 02h CBh 02h CBh 00h 60h Parameter Remarks 0: 0s(Off) | 90: 900s 0:Black | MAX.:White 0: Off 1: On 0: None 9: Reset Display Protection category 0: First detect 1: - NEC LCD4620-2-IT | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 38
(Indication 0: No Action 1: Up 2: Down sRGB: PC mode only Cinema: A/V mode only Wide: A/V mode only This operation has limitation of selection. Please refer to the monitor instruction manual. Momentary (38/40) - NEC LCD4620-2-IT | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 39
Temperature sensor Item Select sensor Temperature OP code page 02h OP code 78h Readout a temperature 02h 79h Parameter 1: Sensor #1 2: Sensor #2 3: Sensor #3 Remarks Returned value is 2's complement. Refer to section 6.2 Read only (39/40) - NEC LCD4620-2-IT | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 40
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 notice. NEC Display Solutions, Ltd. makes no warranty for the use of its products and bears
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External Control
NEC LCD Monitor
1. Application
This document defines the communications method for control of the NEC LCD monitor, MultiSync
LCD4020/4620/5220/6520 and MULTEOS M40/46 when using an external controller
.
2. Connectors and wiring
Connector: D-Sub 9-pin
Cable: Cross (reversed) cable or null modem cable
(Please refer
“
Using the LCD with RS-232C
”
on each User
’
s manual.)
3. Communication Parameter
(1) Communication system Asynchronous
(2) Interface
RS-232C
(3) Baud rate
9600bps
(4) Data length
8bits
(5) Parity
None
(6) Stop bit
1 bit
(7) Communication code ASCII
3.1 Communication timing
The controller should wait for a packet interval before next command is sent.
The packet interval needs to be longer than 600msec for the LCD monitor.