NEC M40-AV LCD4020/4620/5220/6520, M40/M46 external control commands
NEC M40-AV - MULTEOS - 40" LCD Flat Panel Display Manual
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UPC - 805736018417
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NEC M40-AV manual content summary:
- NEC M40-AV | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 1
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 for the LCD monitor. (1/40) - NEC M40-AV | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 2
monitor is as follows, [A controller and a monitor, two-way communication composition figure] Controller Monitor monitor that you want to change. The monitor monitor replies to the controller for confirmation. The controller sends command to get a value for confirmation. The monitor this monitor, it - NEC M40-AV | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 3
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'( "Header". Refer to the section 6 "Message format" for more detail. (3/40) - NEC M40-AV | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 4
status of the monitor. For the monitor." for more details. 2 Get Parameter reply The monitor message to change a setting of the monitor. Message format of the "Set parameter" . 4 Set Parameter reply The monitor replies with this message for a monitor replies to a query from the controller - NEC M40-AV | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 5
xor 30h xor 30h xor 30h xor 36h xor 34h xor 03h = 77h 4.6 Delimiter Header Message Check code Packet delimiter code; ASCII CR(0Dh). Delimiter (5/40) - NEC M40-AV | 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 M40-AV | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 7
monitor or unsupported operation under current condition. This result code from the monitor from the monitor is encoded to from the monitor is encoded monitor monitor can accept. (16bits) This returned value from the monitor the monitor is monitor's adjustment and so on. The controller requests a monitor - NEC M40-AV | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 8
LSB 14th -17th 18th The Monitor echoes back the parameter and status operation with this monitor or unsupported operation . Reply data from the monitor is encoded to ASCII characters the Operation code for confirmation. Reply data from the monitor is encoded to ASCII characters. Ex.) OP code - NEC M40-AV | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 9
monitor can accept. (16bits) Reply data from the monitor Reply data from the monitor is encoded to ASCII The controller requests for the monitor to store the adjusted value. monitor the monitor to SOH-'0'-'A'-'0'-'A'-'0'-'4'-STX-'0'-'7'-ETX-CHK- CR The monitor replies status as the following format; - NEC M40-AV | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 10
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 Refer to the section 4.5 "Check code" for a BCC calculation. (10/40) - NEC M40-AV | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 11
monitor replies with current Brightness setting and capability to support this operation. Header SOH-'0'-'0'-Monitor '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 - NEC M40-AV | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 12
controller. Monitor ID: Indicate a replying Monitor ID. Ex.) When this byte is set to 'A', the replying Monitor ID is Reserved Monitor ID: Specify the Monitor ID which you want to store the setting. Ex.) If Monitor ID is MULTEOS M40/46 has two built-in temperature sensors. The controller can monitor - NEC M40-AV | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 13
The monitor replies for confirmation. Header SOH-'0'-'0'-Monitor ID 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' the monitor to send the temperature from the selected sensor. Header SOH-'0'-Monitor ID - NEC M40-AV | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 14
(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 "Check code" for a BCC calculation. Delimiter CR (0Dh): End of packet (14/40) - NEC M40-AV | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 15
(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". Refer to the section 4.5 "Check code" for a BCC calculation. Delimiter (15/40) - NEC M40-AV | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 16
Monitor ID: Specify the Monitor ID which you want to change a setting. Ex.) If Monitor monitor replies a data for confirmation. Header SOH-'0'-'0'-Monitor Monitor ID: Indicate a replying Monitor ID. Ex.) When this byte is set to 'A', the replying Monitor to the monitor at a The monitor replies same - NEC M40-AV | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 17
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 Code Refer to the section 4.5 "Check code" for a BCC calculation. (17/40) - NEC M40-AV | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 18
(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 Check Code Refer to the section 4.5 "Check code" for a BCC calculation. (18/40) - NEC M40-AV | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 19
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 Month '0'-'1'(30h, 31h): January | '0'-'C'(30h, 43h): December DD: Day '0'-'1'(30h, 31h): 1 | (19/40) - NEC M40-AV | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 20
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 (99 = 63h) MM: Month '0'-'1'(30h, 31h): January | '0'-'C'(30h, 43h): December DD: Day (20/40) - NEC M40-AV | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 21
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 (99 = 63h) MM: Month '0'-'1'(30h, 31h): January | '0'-'C'(30h, 43h): December DD: Day (21/40) - NEC M40-AV | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 22
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 "Check code" for a BCC calculation. Delimiter CR (0Dh): End of packet (22/40) - NEC M40-AV | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 23
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 " bit 1: Tuesday bit 2: Wednesday bit 3: Thursday bit 4: Friday bit 5: Saturday bit 6: Sunday (23/40) - NEC M40-AV | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 24
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 set. OFF_HOUR: Turn off time (hour) '0'-'0'(30h, 30h): 00 | '1'-'7'(31h, 37h): 23 (=17h) (24/40) - NEC M40-AV | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 25
(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 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' - NEC M40-AV | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 26
bit 0: 0:once 1:Everyday bit 1: 0:once 1:Every week bit 2: 0:Disable 1:Enable * When bit 0 and bit 1 are '1', it behaves as Everyday. EX. '0'-'1'(30h, 31h): Disable, Everyday (26/40) - NEC M40-AV | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 27
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 /Disable Schedule data PG: Program No. '0'-'0'(30h, 30h): Program No.1 | (27/40) - NEC M40-AV | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 28
Monitor ID: Specify the Monitor ID which you want to get status. Ex.) If Monitor monitor replies a result of the self-diagnosis. Header SOH-'0'-'0'-Monitor Monitor ID: Indicate a replying Monitor ID. Ex.) When this byte is set to 'A', the replying Monitor can be written to the monitor at a time is - NEC M40-AV | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 29
requests the monitor to read a serial number. Header Message Check code SOH-'0'-Monitor ID-'0'-'A'-'0'-'6' Reserved Monitor ID: Specify the Monitor ID which you want to get serial number. Ex.) If Monitor ID The monitor replies the serial No. data to the controller. Header SOH-'0'-'0'-Monitor ID - NEC M40-AV | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 30
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' ( -Data(1)----Data(n):Model name These data are encoded to ASCII characters strings. (30/40) - NEC M40-AV | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 31
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. code BCC: Block Check Code Refer to the section 4.5 "Check code" for a BCC calculation. (31/40) - NEC M40-AV | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 32
(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". 4.5 "Check code" for a BCC calculation. Delimiter CR (0Dh): End of packet (32/40) - NEC M40-AV | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 33
1: Execute N/A 0: Left side | Max.: Right side 0: Bottom side | Max.: Top side Remarks 100K/step Momentary Momentary Depends on a display timing Depends on a display timing (33/40) - NEC M40-AV | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 34
tree reset (Adjust) Balance Treble Bass PIP Audio Menu tree reset (Audio) 02h CBh 00h 93h 00h 8Fh 00h 91h 02h CBh (34/40) Parameter 0: | Max. 0: | Max. 0: | Max. 0: | Max.: 3:16:9-ZOOM 4:14:9-ZOOM 5:Dynamic 1:Off (Real) 2:Custom 1:100 2:101 | 201:300 1:100 2:101 | 201:300 1:100 2:101 - NEC M40-AV | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 35
10h 0Dh Menu tree reset (PIP) Language 02h CBh 00h 68h OSD Turn Off 00h FCh OSD H 02h 38h Position Position (35/40) Parameter Remarks 0: Off 1: 1 hour | 24: 24 hours 0: No Mean 1: No.1 Enable | 7: No.7 Enable 0: No Mean 1: No.1 Disable | 7: No.7 Disable 0: None 5: Reset Schedule - NEC M40-AV | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 36
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 (offset -10) 1: normal 2:screen saving gamma 1:normal 2:decrease brightness Momentary DISPLAY PROTECTION (36/40) - NEC M40-AV | LCD4020/4620/5220/6520, M40/M46 external control commands - Page 37
Brightness Menu tree reset (Display Protection) Input Detect Long Cable ON/OFF Long Cable Manual R,G,B Delay R,G,B Sharpness SOG Peak VIDEO EQ. DVI Mode SYNC Terminate Scan Conversion Video(Composite) 7: S-Video 9: TV(A) 10: TV(D) 13: Option 10s/step Momentary Momentary Momentary (37/40) - NEC M40-AV | 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 M40-AV | 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 M40-AV | 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.