NEC V421-2 V321-2 : RS232 codes for V321, V421, V461

NEC V421-2 Manual

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  • NEC V421-2 | V321-2 : RS232 codes for V321, V421, V461 - Page 1
    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 ( Except LCD4215(R)) Connector: RJ-45 10/100 BASE-T Cable: Category 5 or higher LAN cable (Please refer "Controlling the LCD monitor
  • NEC V421-2 | V321-2 : RS232 codes for V321, V421, V461 - Page 2
    4. Communication Format Header Message Check Code Delimiter The command packet consists of four parts, Header, Message, Check code and Delimiter. Sequence of a typical procedure to control a monitor is as follows, [A controller and a monitor, two-way communication composition figure] Controller
  • NEC V421-2 | V321-2 : RS232 codes for V321, V421, V461 - Page 3
    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. The controller sets the "MONITOR ID" of the monitor controlled in here. On the reply, the monitor sets '0'
  • NEC V421-2 | V321-2 : RS232 codes for V321, V421, V461 - Page 4
    ASCII 'B' (42h): Command reply. ASCII 'C' (43h): Get current parameter from a monitor. ASCII 'D' (44h): "Get parameter" reply. ASCII 'E' (45h): Set parameter. ASCII 'F' (46h): "Set parameter" reply. 6th -7th bytes) Message Length: Specify the length of the message (that follows the header) from STX
  • NEC V421-2 | V321-2 : RS232 codes for V321, V421, V461 - Page 5
    4 Set Parameter reply The monitor replies with this message for a confirmation of the "Set parameter message". Message format of the "Set parameter reply" is as follows, STX Result OP code page OP code Type Max value Requested setting Value ETX Hi Lo Hi Lo Hi Lo Hi Lo MSB LSB MSB LSB
  • NEC V421-2 | V321-2 : RS232 codes for V321, V421, V461 - Page 6
    Check code (BCC) D17 = D1 xor D2 xor D3 xor ... xor D14 xor D15 xor D16 = 30h xor 41h xor 30h xor 45h xor 30h xor 41h xor 02h xor 30h xor 30h xor 31h 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 (6/
  • NEC V421-2 | V321-2 : RS232 codes for V321, V421, V461 - Page 7
    5. Message type 5.1 Get current Parameter from a monitor. STX OP code page OP code ETX Hi Lo Hi Lo 1st 2nd-3rd 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" the "OP code", refer to "Appendix A.
  • NEC V421-2 | V321-2 : RS232 codes for V321, V421, V461 - Page 8
    These bytes indicate a result of the requested commands as follows, 00h: No Error. 01h: Unsupported operation with this monitor or unsupported operation under current condition. This result code from the monitor is encoded to ASCII characters. Ex.) The byte data 01h is encoded to ASCII character '0'
  • NEC V421-2 | V321-2 : RS232 codes for V321, V421, V461 - Page 9
    This OP code page data must be encoded to ASCII characters. Ex.) The byte data 02h must be encoded to ASCII '0' and '2' (30h and 32h). Refer to the Operation code table. 4th-5thbytes) OP code: Operation code This OP code data must be encoded to ASCII characters. Ex.) OP code 1Ah -> OP code (Hi)
  • NEC V421-2 | V321-2 : RS232 codes for V321, V421, V461 - Page 10
    ASCII '0''0' (30h, 30h): Set parameter ASCII '0''1' (30h, 31h): Momentary Like Auto Setup function, that automatically changes the parameter. 10th-13thbytes) Max. value: Maximum value that monitor can accept. (16bits) Reply data from the monitor is encoded to ASCII characters. Ex.) '0''1''2''3'
  • NEC V421-2 | V321-2 : RS232 codes for V321, V421, V461 - Page 11
    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 (01h
  • NEC V421-2 | V321-2 : RS232 codes for V321, V421, V461 - Page 12
    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 SOH
  • NEC V421-2 | V321-2 : RS232 codes for V321, V421, V461 - Page 13
    Header SOH-'0'-'0'- Monitor ID -'F'-'1'-'2' Message STX-'0'-'0'-'0'-'0'-'1'-'0'-'0'-'0'-'0' -'0'-'6'-'4'-'0'-'0'-'5'-'0'-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
  • NEC V421-2 | V321-2 : RS232 codes for V321, V421, V461 - Page 14
    Header SOH (01h): Start of Header '0' (30h): Reserved Monitor ID: Specify the Monitor ID which you want to get a value. Ex.) If Monitor ID is '1', specify 'A'. '0' (30h): Message sender is the controller. 'E' (45h): Message Type is "Set parameter command". '0'-'A' (30h, 41h): Message length is 10
  • NEC V421-2 | V321-2 : RS232 codes for V321, V421, V461 - Page 15
    '0' (30h): Reserved Monitor ID: Specify the Monitor ID which you want to get a value. Ex.) If Monitor ID is '1', specify 'A'. '0' (30h): Message sender is the controller. 'C' (43h): Message Type is "Get parameter". '0'-'6' (30h, 36h): Message length is 6 bytes. Message STX (02h): Start of Message
  • NEC V421-2 | V321-2 : RS232 codes for V321, V421, V461 - Page 16
    7. Power control procedure 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
  • NEC V421-2 | V321-2 : RS232 codes for V321, V421, V461 - Page 17
    CR (0Dh): End of packet 7.2 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
  • NEC V421-2 | V321-2 : RS232 codes for V321, V421, V461 - Page 18
    Refer to the section 4.5 "Check code" for a BCC calculation. Delimiter CR (0Dh): End of packet 8. Asset Data read and write 8.1 Asset Data Read 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'-
  • NEC V421-2 | V321-2 : RS232 codes for V321, V421, V461 - Page 19
    Delimiter CR (0Dh): End of packet 8.2 Asset Data 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
  • NEC V421-2 | V321-2 : RS232 codes for V321, V421, V461 - Page 20
    Delimiter CR (0Dh): End of packet 9. Date & Time read and write 9.1 Date & Time Read 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
  • NEC V421-2 | V321-2 : RS232 codes for V321, V421, V461 - Page 21
    '1'-'E'(31h, 45h): 30(=1Eh) '1'-'F'(31h, 46h): 31(=1Fh) WW: weekdays '0'-'0'(30h, 30h): Sunday '0'-'1'(30h, 31h): Monday '0'-'2'(30h, 32h): Tuesday '0'-'3'(30h, 33h): Wednesday '0'-'4'(30h, 34h): Thursday '0'-'5'(30h, 35h): Friday '0'-'6'(30h, 36h): Saturday HH: Hours '0'-'0'(30h, 30h): 0 | '1'-'7'(
  • NEC V421-2 | V321-2 : RS232 codes for V321, V421, V461 - Page 22
    '0'-'1'(30h, 31h): 1 | '1'-'E'(31h, 45h): 30(=1Eh) '1'-'F'(31h, 46h): 31(=1Fh) WW: weekdays '0'-'0'(30h, 30h): Sunday '0'-'1'(30h, 31h): Monday '0'-'2'(30h, 32h): Tuesday '0'-'3'(30h, 33h): Wednesday '0'-'4'(30h, 34h): Thursday '0'-'5'(30h, 35h): Friday '0'-'6'(30h, 36h): Saturday HH: Hours '0'-'0'(
  • NEC V421-2 | V321-2 : RS232 codes for V321, V421, V461 - Page 23
    '0'-'1'(30h, 31h): 1 | '1'-'E'(31h, 45h): 30(=1Eh) '1'-'F'(31h, 46h): 31(=1Fh) WW: weekdays '0'-'0'(30h, 30h): Sunday '0'-'1'(30h, 31h): Monday '0'-'2'(30h, 32h): Tuesday '0'-'3'(30h, 33h): Wednesday '0'-'4'(30h, 34h): Thursday '0'-'5'(30h, 35h): Friday '0'-'6'(30h, 36h): Saturday HH: Hours '0'-'0'(
  • NEC V421-2 | V321-2 : RS232 codes for V321, V421, V461 - Page 24
    2) The monitor replies Schedule to the controller. Header SOH-'0'-'0'-Monitor ID-'B'-'1'-'6' Message STX-'C'-'3'-'1'-'3'-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): Reserved '0' (30h): Message receiver is the
  • NEC V421-2 | V321-2 : RS232 codes for V321, V421, V461 - Page 25
    EX. '0'-'1'(30h, 31h): Monday '0'-'4'(30h, 34h): Wednesday '0'-'F'(30h, 46h): Monday, Tuesday, Wednesday and Thursday '7'-'F'(37h, 46h): Monday to Sunday FL: Option bit 0: 0(30h):once 1(31h):Everyday bit 1: 0(30h):once 1(31h):Every week bit 2: 0:Disable 1:Enable EX. '0'-'1'(30h, 31h): Disable,
  • NEC V421-2 | V321-2 : RS232 codes for V321, V421, V461 - Page 26
    '1'-'8'(31h, 38h): Off timer isn't set. OFF_MIN: Turn off time (minute) '0'-'0'(30h, 30h): 0 | '3'-'B'(33h, 42h): 59 (=3Bh) '3'-'C'(33h, 43h): Off timer isn't set. INPUT: Timer input '0'-'0'(30h, 30h): DVI '0'-'2'(30h, 32h): VGA '0'-'3'(30h, 33h): RGB/HV '0'-'4'(30h, 34h): HDMI '0'-'5'(30h, 35h):
  • NEC V421-2 | V321-2 : RS232 codes for V321, V421, V461 - Page 27
    Message STX (02h): Start of Message 'C'-'3'-'1'-'4' (43h, 33h, 31h, 34h): Schedule writes reply command ST: Schedule Status command '0'(30h): No error '1'(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'(30h, 36h):
  • NEC V421-2 | V321-2 : RS232 codes for V321, V421, V461 - Page 28
    '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 3) The controller requests the monitor to write Enable/Disable Schedule. Header Message Check code Delimiter
  • NEC V421-2 | V321-2 : RS232 codes for V321, V421, V461 - Page 29
    '0'-'0'(30h, 30h): Program No.1 | '0'-'6'(30h, 36h): Program No.7 EN: Enable /Disable '0'-'0'(30h, 30h): Disable '0'-'1'(30h, 31h): Enable 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 11.
  • NEC V421-2 | V321-2 : RS232 codes for V321, V421, V461 - Page 30
    ST: Result of self-tests '0'-'0'(30h, 30h):00: Normal '7'-'0'(37h, 30h):70: Main-power +3.3V abnormality '7'-'1'(37h, 31h):71: Main-power +12V abnormality '7'-'2'(37h, 32h):72: Maim-power +5V abnormality '7'-'3'(37h, 33h):73: Audio amplifier +24V abnormality '7'-'4'(37h, 34h):74: '7'-'5'(37h, 35h):
  • NEC V421-2 | V321-2 : RS232 codes for V321, V421, V461 - Page 31
    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'-'6' (41h, 33h, 31h, 36h): Serial No. reply command Data(0)-Data(1)----Data(n):Serial Number  These data are encoded to ASCII characters strings. ETX (03h
  • NEC V421-2 | V321-2 : RS232 codes for V321, V421, V461 - Page 32
    Check code BCC: Block Check Code Refer to the section 4.5 "Check code" for a BCC calculation. Delimiter CR (0Dh): End of packet (32/37)
  • NEC V421-2 | V321-2 : RS232 codes for V321, V421, V461 - 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 Noise Reduction 02h Film Mode 02h Picture mode 02h Picture reset
  • NEC V421-2 | V321-2 : RS232 codes for V321, V421, V461 - Page 34
    SCHDULE AUDIO Item H Resolution V Resolution Input Resolution OP code page 02h OP code 50h 02h 51h 02h DAh Zoom mode 02h CEh Custom Zoom Zoom 02h 6Fh Zoom 02h 6Ch H-Expansion Zoom 02h 6Dh V-Expansion Zoom 02h CCh H-Position Zoom 02h CDh V-Position Size (Zoom) 02h 70h
  • NEC V421-2 | V321-2 : RS232 codes for V321, V421, V461 - Page 35
    ) 14:DVD/HD2(BNC=SCART) 17: HDMI(VESA STD) 0: None 6: Reset PIP category Momentary This operation has limitation of selection. Please refer to the monitor instruction manual. Momentary (35/37)
  • NEC V421-2 | V321-2 : RS232 codes for V321, V421, V461 - Page 36
    OS D Item Language OP code page 00h OP code 68h OSD Turn Off 00h FCh OSD Position H 02h 38h Position V 02h 39h Position Information OSD 02h 3Dh OSD reset 02h CBh Monitor ID IR Control Tile Matrix 02h 3Eh 02h 3Fh H monitor 02h D0h V monitor 02h D1h Position 02h D2h
  • NEC V421-2 | V321-2 : RS232 codes for V321, V421, V461 - Page 37
    Advanced Option Item Side Border Color OP code page 02h OP code DFh Display Protection reset 02h CBh Input change DVI Mode Scan Conversion Color System 02h CFh 02h 25h 02h 21h Scan Mode Advanced Option Reset Factory Reset Input 02h E3h 02h E4h 00h 04h 00h 60h Audio Input
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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 V321,V461
and LCD4215
(R)
when using an external controller
.
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
( Except LCD4215
(R)
)
Connector: RJ-45 10/100 BASE-T
Cable: Category 5 or higher LAN cable
(Please refer
“
Controlling the LCD monitor via LAN control
”
on User
’
s manual.)
3. Communication Parameter
3.1 RS-232C Remote control
(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
3.2 LAN control
( Except LCD4215
(R)
)
(1) Communication system
TCP/IP (Internet protocol suite)
(2) Interface
Ethernet (CSMA/CD)
(3) Communication layer
Transport layer (TCP)
* Using the payload of TCP segment.
(4) IP address
(Default) 192.168.0.10
* If you need to change,
Please refer
“
Network settings
”
on User
’
s manual.
(5) Port No.
7142 (Fixed)
3.3 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.