NEC RS232 CONTROL CODES RESIDENTIAL MODELS User manual

NEC plasma display
External Control Manual
(for PX-42VP5/42XM5/42XM3/50XM4/61XM3)

2
Application
These specifications are applicable to NEC plasma monitors and
communications control from external equipment.
"Please also support the command of VP series and refer to the manual of the
conventional model about specification."
Connections
Connections should be made as described below.
1) Connector on the plasma monitor side: EXTERNAL CONTROL connector.
Type of connector: D-Sub 9-pin male
No.
Pin Name
1No Connection
2RXD (Receive data)
3TXD (Transmit data)
4DTR (DTE side ready)
5GND
6DSR (DCE side ready)
7RTS (Ready to send)
8CTS (Clear to send)
9No Connection
plasma monitor
External equipment
e.g., Pers
onal computer

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2) Connector on the external equipment side: Serial port (RS-232C) connector.
See the specifications of the equipment that is to be connected for the type of
connector and the pin assignment.
3) Wiring
Use a crossed (reverse) cable.
Wire the cable so that each pair of data lines cross between the two devices.
These data line pairs are RXD (Receive data) and TXD (Transmit data), DTR
(DTE side ready) and DSR (DCE side ready), and RTS (Ready to send) and CTS
(Clear to send).
Communication Parameters
(1) Communication system Asynchronous
(2) Interface RS-232C
(3) Baud rate 9600 bps
(4) Data length 8 bits
(5) Parity Odd
(6) Stop bit 1 bit
(7) Communication code Hex

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Communication Format
Command1
Command 1, along with command 2, is anumber used to distinguish each
command.
When making it operate using ID, bit1 and bit0 are set up as follows.
Bit1,Bit0 Unit ID distinction bit
11B :Usually, a form (with no ID)
10B :Usually, a form (with no ID)
01B :Set ID
00B :Video wall ID
In the case of ACK, when the lower order 4 bits is FH (as in 3FH and
7FH), this indicates that the commands and data of the supported
equipment have been received. When the lower order 4 bits is BH (as in
3BH and 7BH), this indicates that unsupported commands and data
have been received.
Unit ID1,2 (UA1,UA2)
Unit ID 1and unit ID 2are numbers used to identify the equipment
that is to be connected.
60H is used for the plasma monitor and 80H is used for external control
equipment such as a personal computer.
Command 1
Unit ID 1
Unit ID 2
Command 2
Data length
Data
Check sum
8bit
8bit
8bit
8bit
8bit
8bit
8bit
8bit

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1) Unit ID 1: Indicates the equipment sending the signal. When
supporting Set ID by the command 1, 4 bits of low ranks of Set ID are
set up.
2) Unit ID 2: Indicates the equipment receiving the signal. When
supporting Set ID by the command 1, 4 bits of higher ranks of Set ID
are set up.
* Set ID : it is the apparatus number assigned to each plasma monitor.

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Command 2
Command 2, along with command 1, is anumber used to distinguish each
command.
Check Sum (CKS), Error Processing, and ACK
1) The check sum described below and RS-232C odd parity are used together for
acheck of the received data. The check sum is the lower order 8 bits of one
frame of sent or received data comprising the sum total of Command 1, Unit
ID 1 and 2, Command 2, Data Length, and Data.
Check Sum Example
2) Error Processing
•When the communication interval is vacant for more than 4 ms, thereafter a
received Command 1will be recognized. If, at this time, meaningful data
cannot be recognized, that data will not be recognized (as valid data).
•An ACK will not be returned unless the receive data error,the check sum
error, and the receive data are all taken in.
Total 208H
DFH 80H 60H 47H 01H 01H 08H
Command1 Unit ID1 Unit ID2 Command2 Data Length Data Check Sum

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The control method of the set by Set ID
When controlling two or more sets of plasma monitors, if the command
using Set ID is used, it will become controllable individually.
The example of the POWER ON command to the plasma monitor which set
ID as "5" is shown below.
It is not based on ID but is the POWER ON command to all sets.
9F 80 60 4E 00 CD
In ID= "5", the value of ID-1=4 is set up.
9D 84 60 4E 00 CF
The example of a change in the single mode of a 4th page multi-system configuration and
the multi-mode is shown below.
ID of the set used as a master(etc PC) is set to 50, and it assumes that ID is shaken by
AUTO ID to each set. ID shaken at each set is as follows.
Upper left set (master) ID = 50 = 32h
Upper right set ID = 51 = 33h
Lower right set ID = 52 = 34h
Lower left set ID = 53 = 35h
Transmission Data
DD 81 63 03 03 03 01 00 CB
DD 82 63 03 03 03 02 00 CD
DD 83 63 03 03 03 03 00 CF
DD 84 63 03 03 03 04 00 D1
Transmission of the above command performs a 4th page multi SPLIT display.
Moreover,the following commands are published in order to change a 4th page
multi-display into a single mode display.
DF 80 60 03 03 01 01 00 C7
All sets become a single mode display by the above-mentioned command.
Since this command does not specify Set ID, all sets execute it.
*:Control by ID may not be able to be performed depending on connection with
external control apparatus.

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Command Reference List
CMD1 CMD2 LEN
01 Power ON 9FH 4EH 00H
02 Power OFF 9FH 4FH 00H
03 Input Switch Change DFH 47H 01H
04 VOLUME Gain Data DFH 7FH 03H
05 AUDIO Mute ON 9FH 3EH 00H
06 AUDIO Mute OFF 9FH 3FH 00H
07 CONTRAST Gain Data DFH 7FH 03H
08 BRIGHT Gain Data DFH 7FH 03H
09 SHARPNESS Gain Data DFH 7FH 03H
10 Color Gain Data DFH 7FH 03H
11 TINT Gain Data DFH 7FH 03H
12 PICTURE MODE Select DFH 0AH 01H
13 COLOR TEMP SELECT DFH 00H 01H
14 RED Gain Data DFH 7FH 04H
15 GREEN Gain Data DFH 7FH 04H
16 BLUE Gain Data DFH 7FH 04H
17 NR MODE Set DFH C0H 01H
18 BASS Gain Data DFH 7FH 03H
19 TREBLE Gain Data DFH 7FH 03H
20 BALANCE Gain Data DFH 7FH 03H
21 SCREEN MODE Select DFH 51H 01H
22 V.POSITION Gain Data DFH 7FH 03H
23 H.POSITION Gain Data DFH 7FH 03H
24 V-HEIGHT Gain Data DFH 7FH 03H
25 H-WIDTH Gain Data DFH 7FH 03H
26 AUTO PICTURE Select DFH 7FH 03H
27 PHASE Gain Data DFH 7FH 03H
28 CLOCK Gain Data DFH 7FH 03H
29 OSM Select DFH 58H 01H
30 OSM ADJ. Gain Data DFH 1AH 02H
31 POWER MGT Select DFH 1AH 02H
32 GRAY LEVEL Set DFH C6H 01H
33 CINEMAMODE Set DFH C1H 01H
34 LONG LIFE Set DFH 6BH 03H
35 INVESE Set DFH C7H 03H
36 SCREEN WIPER Set DFH C8H 04H
37 RESET 1FH 54H 00H
38 Audio Select Set DFH 70H 02H
39 BNC INPUT DFH 8CH 01H
40 RGB Select DFH 8BH 01H
41 HD Select DFH 8AH 01H
42 LANGUAGE Select DFH 5BH 01H

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43 COLOR SYSTEM Select DFH 5CH 01H
44 FREQUENCY Request 1FH 26H 00H
45 Input MODE Request 1FH 41H 00H
46 VIDEO ADJ Request 1FH 45H 00H
47 Audio Select Request 1FH 6FH 00H
48 Failure Mode Request 1FH 3FH 00H
49 MODEL NAME Request 1FH 17H 00H
50 D-SUB INPUT DFH 8DH 01H
51 TIMER SWITCH DFH 02H 01H
52 LOW TONE DFH 0CH 01H
53 COLOR TUNE DFH 0DH 08H
54 TIMER PROGRAM SETTING DFH 30H 08H
55 PRESENT TIME SETTING DFH 31H 03H
56 MULTI MODE Select DFH 03H 03H
57 MULTI MODE Request 1FH 3BH 00H
58 AUTO ID SET START 5FH F0H 01H
59 PLE LINK DFH F1H 03H
60 VIDEO WALL SETTING DFH F3H 02H
61 POWER DELAY ON
(DIVIDER setting : 1/4/9)
DFH F2H 01H
62 POWER DELAY ON
(DIVIDER setting : 16/25)
DFH F6H01H
63 GAMMAGain Data DFH 13H 04H
64 Running Sense 1FH 88H 00H
65 ORBITTER SET DFH 1EH 04H
66 OSM OBITER DFH 5FH 01H
67 OSM ANGLE DFH 60H 01H
68 Input Skip 5FH 61H 01H
69*1
PICTURE Size DFH 2AH 01H
70 OPTION Select DFH 63H 04H
71 REPEAT Timer DFH 64H 06H
72 SERIAL No. Request 1FH 15H 00H
73 S1/S2 SELECT DFH 89H 01H
74 SOFT FOCUS DFH 65H 01H
75 PLUG and PLAY DFH 8EH 01H
76 DIGITAL SIGNAL
LEVEL SELECT
DFH 8FH 01H
77*1
MULTI(SPRIT) SCREEN
Select
DFH 07H 01H
78*1
SUB.P DETECT DFH 7AH 01H
79*1
ZOOM NAV DFH 7BH 01H
80*1
PIC FREEZE DFH 7CH 01H
81*1
PAUSE COMMAND DFH 7DH 01H
82*1
SEAMLESS SW DFH 7EH 03H
83*1
MULTI(SPRIT) SCREEN
PROGRAM TIMER
DFH 32H 0AH

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84*1
MULTI(SPRIT) SCREEN
POWER ON MODE
DFH 33H 04H
85*1
MULTI(SPRIT) SCREEN
REPEAT TIMER
DFH 34H 09H
86 OSM CONTRAST DFH 37H 01H
87*2
CLOSECAPTION
(Closed Caption)
DFH 3CH 01H
88*2
CAPTION CONT DFH 3DH01H
*1:This function is only 50 or 61 inch model
*2:This function is only A version