Instruction/ maintenance manual of the product MultiSync LCD3210 LCD3210 LCD3210 NEC
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(1/38) External Contro l LCD3210 1. Application This document defines the communications method for control of the LCD3210 when using an external controller . 2. Connectors and wiring Connector: D-Sub 9-pin Cable: Cross (reversed) cable or null modem cable 3.
(2/38) 4. Communication Format 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] 4.
(3/38) 4 th byte) Source: Source equipment ID. (Sender) Specify a sender address. The controller must be ‘0’(30h). 5 th byte) Message Type: (Case sensitive.) Refer to section 4.2 “Message block format” for more details. ASCII 'A' (41h): Command ASCII 'B' (42h): Command reply.
(4/38) 3 ） Set parameter The controller sends this message to change a setting of the monitor. Message format of the “Set parameter” is as follows; Refer to section 5.3 “Set parameter” for more details. 4 ） Set Parameter reply The monitor replies with this message for a confirmation of the “Set parameter message”.
(5/38) Following is an example of a Check code (BCC) calculation. Check code (BCC) D 17 = D 1 xor D 2 xor D 3 xor … xor D 14 xor D 15 xor D 16 = 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 = 7 7 h 4.
(6/38) 5. Message type 5.1 Get curr ent Paramet er from a monitor . 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. Operation code table”.
(7/38) 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' and '1' (30h and 31h).
(8/38) Ex) The byte data 02h must be encoded to ASCII '0' and '2' (30h and 32h). Refer to the Operation code table. 4 th -5 th bytes) OP code: Operation code This OP code data must be encoded to ASCII characters.
(9/38) ASCII '0''1' (30h, 31h): Momentary Like Auto Setup function, that automatically changes the parameter. 10 th -13 th bytes) Max. value: Maximum value that monitor can accept. (16bits) Reply data from the monitor is encoded to ASCII characters.
(10/38) Bit 5-2 Reserved (Don't care) Bit 1 1:Positive Horizontal sync polarity. 0:Negative Horizontal sync polarity. Bit 0 1:Positive Vertical sync polarity. 0:Negative Vertical sync polarity. H Freq: Horizontal Frequency in unit 0.01kHz V Freq: Vertical Frequency in unit 0.
(11/38) Delimiter CR (0Dh): End of packet Step 2. The monitor replies with current Brightness setting and capability to support this operation. Header SOH (01h): Start Of Header '0' (30h): Reserved '0' (30h): Message receiver is the controller 'A' (41h): Monitor ID LCD3210 must be ASCII 'A' (41h).
(12/38) Step 4. The monitor replies with a message for confirmation. Header SOH (01h): Start Of Header '0' (30h): Reserved '0' (30h): Message receiver is the controller 'A' (41h): Monitor ID LCD3210 must be ASCII 'A' (41h).
(13/38) 6.2. How to read the measuremen t value of the built-in temperature sensors. LCD3210 has two built-in temperature sensors. The controller can monitor inside temperatures by using those sensors through RS-232C. The following shows the procedure for reading the temperatures from the sensors.
(14/38) Delimiter CR (0Dh): End of packet Step 3. The controller requests the monitor to send the temperature from the selected sensor. Header Message Check code Delimiter SOH-'0'-'A&ap.
(15/38) 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 7. Power control procedure 7.1 Power status read 1) The controller requests the monitor to reply a current power status.
(16/38) Check code BCC: Block Check Code Refer to the section 4.5 “Check code” for a BCC calculation. Delimiter CR (0Dh): End of packet 7.2 Power con trol 1) The controller requests the monitor to control monitor power.
(17/38) Check code BCC: Block Check Code Refer to the section 4.5 “Check code” for a BCC calculation. Delimiter CR (0Dh): End of packet..
(18/38) 8. Asset Data read and write 8.1 Asset Data Read Requ est and repl y This command is used in order to read Asset Data. 1) The controller requests the monitor to reply with Asset data.
(19/38) 8.2 Asset D ata write This command is used in order to write Asset Data. 1) The controller requests the monitor to write Asset data. Header Message Check code Delimiter SOH-'0'-&apos.
(20/38) 9. Date & Time read and write 9.1 Da te & Ti me 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.
(21/38) WW: weekdays '0'-'0'(30h, 30h): Sunday '0'-'1'(30h, 31h): Monday '0'-'2'(30h, 32h): Tuesday '0'-'3'(30h, 33h): W.
(22/38) WW: weekdays '0'-'0'(30h, 30h): Sunday '0'-'1'(30h, 31h): Monday '0'-'2'(30h, 32h): Tuesday '0'-'3'(30h, 33h): W.
(23/38) WW: weekdays '0'-'0'(30h, 30h): Sunday '0'-'1'(30h, 31h): Monday '0'-'2'(30h, 32h): Tuesday '0'-'3'(30h, 33h): W.
(24/38) 10.Schedule read and write 10.1 Schedule 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 Check co.
(25/38) OFF_HOUR: Turn off time (hour) '0'-'0'(30h, 30h): 00 | '1'-'7'(31h, 37h): 23 (=17h) '1'-'8'(31h, 38h): Off timer isn't set.
(26/38) 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 .
(27/38) EX. '0'-'1'(30h, 31h): Monday '0'-'4'(30h, 34h): Wednesday '0'-'F'(30h, 46h): Monday, Tuesday, Wednesday and Thursday '7'-.
(28/38) ON_MIN: Turn on time (minute) '0'-'0'(30h, 30h): 0 | '3'-'B'(33h, 42h): 59 '3'-'C'(33h, 43h): On timer isn’t set.
(29/38) 3) The controller requests the monitor to write Enable/Disable Schedule. Header Message Check code Delimiter SOH-'0'-'A'-'0'-'A'-'0'-'A&a.
(30/38) BCC: Block Check Code Refer to the section 4.5 “Check code” for a BCC calculation. Delimiter CR (0Dh): End of packet 11. Self diagnosis 11.1 Self-diagnosi s status rea d This command is used in order to read the Self-diagnosis status. 1) The controller requests the monitor to read Self-diagnosis status.
(31/38) 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.
(32/38) 12. Serial No. & Model Name Read 12.1 Serial No. Read This command is used in order to read a serial No. 1) The controller requests the monitor to read a serial No.
(33/38) Header SOH (01h): Start Of Header '0' (30h): Reserved 'A' (41h): Monitor ID LCD3210 must be ASCII 'A' (41h). '0' (30h): Message sender is the controller 'A' (41h): Message type is "Command" '0'-'6'(30h, 36h): Message length.
(34/38) Appendix A. Operation Code (OP code) Table Item OP code page OP code Parameter Remarks Brightness 00h 10h 0: dark | MAX.: bright Contrast 00h 12h 0: low | MAX.: high Sharpness 00h 8Ch 0: dull | MAX.:sharp Tint 00h 90h 0: | MAX.: Color 02h 1Fh 0: pale | MAX.
(35/38) Item OP code page OP code Parameter Remarks Zoom V-Position 02h CDh 0: Down side | Max.: Up side Screen reset 00h 06h 1: Reset Momentary Balance 00h 93h O: Left | 50:(Center) | 100: Right Treble 00h 8Fh O: Min. | 50:(Center) | 100: Max. Bass 00h 91h 0: Min.
(36/38) Item OP code page OP code Parameter Remarks VIDEO EQ. 02h E0h 0: | 7: LongCable Manual SYNC Terminate 02h E1h 1:Hi(2.2kohm) 2:Lo(75ohm) OSM Turn Off 00h FCh 0-9:Do not set.
(37/38) Item OP code page OP code Parameter Remarks Power On Delay 02h D8h 0: OFF (0sec) │ 50:50sec Advanced Option Reset 02h E4h 1:RESET Momentary Input 00h 60h 3: RGB1 (DVI-D) 1: RGB2 (D-SUB) 2: R.
(38/38) All data are subject to change without notice. Copyright 2004-2005 NEC Display Solutions All Right Reserved This document p rovides the technical info rmation for users. NEC Disp lay Solutions reserv es the right to ch ange or modify the i n form ation containe d herei n without notice.
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