This manual describes the commands used to control an NEC-made projector from a PC or other external device. A
projector can be controlled by exchanging commands with an external device connected via a serial port or network.
The manual assumes basic knowledge of projectors. For information about the functions of the model in use and how
to adjust the device, see the operation manual of the projector .For information about the connection between the
projector and an external device, see "1 Connecting an External Device" (page 5). Connect an external device as
appropriate for the usage environment of the projector.
Models for which the control commands are available
See the Appendix "Connecting an External Device".
Conventions
For information about how commands and responses are expressed in this manual, see "2.1 Understanding
command details" (page 10).
NOTES
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2. The contents of this reference manual are subject to change without notice.
3. Great care has been taken in the preparation of this reference manual; however, should you notice any
questionable points, errors or omissions, please contact us.
4. Notwithstanding article 3. NEC will not be responsible for any claims on loss of profit or other matters deemed to
result from using this reference manual.
1.2 Communication conditions.................................................................................................................................... 7
2. Command List .......................................................................................................................... 8
3.1 [ 009. ERROR STATUS REQUEST ] .................................................................................................................. 13
3.2 [ 015. POWER ON ] ............................................................................................................................................ 15
3.3 [ 016. POWER OFF ] .......................................................................................................................................... 16
3.36 [ 078-4. MUTE STATUS REQUEST ] ................................................................................................................. 64
3.37 [ 078-5. MODEL NAME REQUEST ] .................................................................................................................. 66
3.38 [ 078-6. COVER STATUS REQUEST ] ............................................................................................................... 67
3.39 [ 079. FREEZE CONTROL ] ............................................................................................................................... 68
3.40 [ 084. INFORMATION STRING REQUEST ] ...................................................................................................... 69
3.50 [ 305-1. BASE MODEL TYPE REQUEST ] ......................................................................................................... 81
3.51 [ 305-2. SERIAL NUMBER REQUEST ] ............................................................... .............................................. 82
3.52 [ 305-3. BASIC INFORMATION REQUEST ] ...................................................................................................... 83
3.53 [ 319-10. AUDIO SELECT SET ] ......................................................................................................................... 85
4. Revision History ..................................................................................................................... 87
This chapter describes how to connect the projector to an external device and communication conditions.
1.1 Connection interface
The projector can be connected to a PC or other external device using the methods mentioned below.
For information about the connection method supported by the model in use, see the Appendix "Connecting an
External Device".
・Connection using a serial port
・Connection via a network
Connection using a serial port
This method connects a PC and the projector using a serial cable (cross cable).
Connect the serial cable to the PC CONTROL port of the projector. The pin assignment of the s erial cable is shown
below.
<Connection between the PC CONTROL port (D-SUB 9P) and external device>
・ Before connecting an external device via a network, check with the network administrator.
・ Some models cannot receive commands in standby mode. See Appendix "Standby Mode setting for receiving
commands".
Connection using a wired LAN
This method connects a PC and the projector using a LAN cable. For information about the type of LAN c able to be
used (straight or cross), contact the network administrator. The pin assignment of the LAN port is shown below.
<LAN port (RJ-45 8-pin connector)>
Pin number Function Description
1 TD+ Transmit Data (+)
2 TD- Transmit Data (-)
3 RD+ Receive Data (+)
4
−
Not used
5
6 RD- Receive Data (-)
7
8
−
−
−
Not used
Not used
Not used
Connection using a wireless LAN
This method connects a PC via a wireless LAN by connecting a wireless LAN unit to the projector. For information
about the available wireless LAN units, see the operation manual of the model in use.
For information about the connection methods available for the model in use, see the Appendix "Connecting an
External Device".
Serial connection
The RS-232C-compliant communication method is supported. Specify the communication settings of the software
used to send and receive commands, as shown below.
Item Detail
Baud rate 115200/38400/19200/9600/4800 bps
Data length 8 bits
Parity bit None
Stop bit 1 bit
Communication mode Full duplex
LAN connection
Wired LAN
Item Detail
Data rate Auto switchable (10/100 Mbps)
Supported standard IEEE802.3 (10BASE-T)
IEEE802.3u (100BASE-TX, Auto-Negotiation)
Wireless LAN
See the operation manual of the wireless LAN unit to be used.
Port number
Use TCP port number "7142" for sending and receiving commands.
009. ERROR STATUS REQUEST Gets information about errors occurring in the projector. 13
015. POWER ON Turns on the power of the projector. 15
016. POWER OFF Turns off the power of the projector. 16
018. INPUT SW CHANGE Switches the input terminal or entry list. 17
020. PICTURE MUTE ON Turns the picture mute on. 19
021. PICTURE MUTE OFF Turns the picture mute off. 20
022. SOUND MUTE ON Turns the sound mute on. 21
023. SOUND MUTE OFF Turns the sound mute off. 22
024. ONSCREEN MUTE ON Turns the onscreen mute on. 23
025. ONSCREEN MUTE OFF Turns the onscreen mute off. 24
030-1. PICTURE ADJUST Adjusts the picture. 25
030-2. VOLUME ADJUST Adjusts the sound volume. 27
030-12. ASPECT ADJUST Adjusts the aspect. 29
030-15. OTHER ADJUST Adjusts the various gains. 30
037. INFORMATION REQUEST Gets the information of the projector. 32
037-3. FILTER USAGE INFORMATION REQUEST Gets filter usage information such as usage time. 33
037-4. LAMP INFORMATION REQUEST 3 Gets lamp information such as usage time and remaining life.
037-6. CARBON SAVINGS INFORMATION REQUEST Gets the Carbon Saving values on the projector. 36
050. REMOTE KEY CODE Sends the key code for remote control. 38
051. SHUTTER CLOSE Closes the lens shutter. 40
052. SHUTTER OPEN Opens the lens shutter. 41
053. LENS CONTROL Adjusts the lens position. 42
053-1. LENS CONTROL REQUEST Gets adjusted values of the lens position. 44
053-2. LENS CONTROL 2 Adjusts the lens position. 46
053-3. LENS MEMORY CONTROL Controls the lens memory. 48
053-4. REFERENCE LENS MEMORY CONTROL Controls the reference lens memory. 50
053-5. LENS MEMORY OPTION REQUEST Gets the value set for the lens memory. 52
053-6. LENS MEMORY OPTION SET Sets the lens memory. 53
053-7. LENS INFORMATION REQUEST Gets information about the lens of the projector. 55
053-10. LENS PROFILE SET Selects the profile number of the reference lens memory. 56
053-11. LENS PROFILE REQUEST Gets the selected profile number of the reference lens
memory.
060-1. GAIN PARAMETER REQUEST 3 Gets adjusted values of the picture, volume, and backlight. 58
see
078-1. SETTING REQUEST Gets information of the projector. 60
078-2. RUNNING STATUS REQUEST Gets the information about the operation status of the
projector.
078-3. INPUT STATUS REQUEST Gets the information about the input signal status of the
projector.
078-4. MUTE STATUS REQUEST Gets the mute status of the projector. 64
078-5. MODEL NAME REQUEST Gets the model name of the projector. 66
078-6. COVER STATUS REQUEST Gets the status of the mirror cover or lens cover. 67
079. FREEZE CONTROL Controls whether to turn the freeze function on or off. 68
084. INFORMATION STRING REQUEST Gets information strings (English) displayed on the projector. 69
097-8. ECO MODE REQUEST Gets the value set for the eco mode. 70
097-45. LAN PROJECTOR NAME REQUEST Gets the projector name. 71
097-155. LAN MAC ADDRESS STATUS REQUEST2 Gets the MAC address of the projector. 72
097-198. PIP/PICTURE BY PICTURE REQUEST Gets the value set for the picture in picture and picture by
picture.
097-243-1. EDGE BLENDING MODE REQUEST Gets the value set for the edge blending. 75
098-8. ECO MODE SET Sets the eco mode. 76
098-45. LAN PROJECTOR NAME SET Sets the projector name. 77
098-198. PIP/PICTURE BY PICTURE SET Sets the picture in picture or picture by picture. 78
098-243-1. EDGE BLENDING MODE SET Sets the edge blending. 80
305-1. BASE MODEL TYPE REQUEST Gets the base model type of the projector. 81
305-2. SERIAL NUMBER REQUEST Gets the serial number of the projector. 82
305-3. BASIC INFORMATION REQUEST Gets the operation status of the projector. 83
319-10. AUDIO SELECT SET Sets the audio select. 85
In this manual, commands and responses are expressed as follows.
20h 88h <ID1><ID2> 0Ch <DATA01> - <DATA12> <CKS>
Command/response A series of strings enclosed in a frame represents a command or response (in
Parameter A character string in italic enclosed in brackets represents a parameter.
hexadecimal notation).
For information about the parameters that are common to the control commands
(ID1, ID2, CKS, LEN, ERR1, and ERR2), see "2.2 Parameters" (page 10). For
information about those parameters whose content varies from command to
command (DATA), see the description of the relevant command.
2.2 Parameters
The parameters that are used in the control commands are listed below.
Parameter name Description
ID1 Control ID The value of the "control ID" set for the projector is used.
ID2 Model code This varies depending on the model in use.
CKS Checksum The checksum is calculated as follows.
①Add all preceding bytes of data.
②Use the value of the low-order one byte (eight bits) of the addition
result obtained in ① as the checksum.
LEN Data length This indicates the data length of the data part (DATA??) following LEN (in
DATA?? Variable length data This varies depending on the character string stored.
ERR1
ERR2
Response error The cause of an error is represented by a combination of error codes.
bytes).
For information about error codes, see "2.4 Error code list" (page 12).
Example of checksum calculation
20h 81h 01h 60h 01h 00h <CKS>
① Add all the data preceding the checksum.
"20h + 81h + 01h + 60h + 01h + 00h = 103h"
② Use the low-order one byte "03h" of the addition result obtained in ① as the checksum.
After a c ommand is sent to the projector, its result is returned as a response. How a response is returned differs
depending on the execution result of the command.
When the execution of a command succeeds
When the command does not request data, a response is returned with no data part.
When the command requests data, a response is returned with data added to data parts.
When the execution of a command fails
A response is returned with the cause of the failed command execution indicated in <ERR1> and <ERR2>.
The following table lists the combinations of error codes (ERR1 and ERR2) and describes the error indicated by each
combination.
ERR1 ERR2 Error description
00h 00h The command cannot be recognized.
00h 01h The command is not supported by the model in use.
01h 00h The specified value is invalid.
01h 01h The specified input terminal is invalid.
01h 02h The specified language is invalid.
02h 00h Memory allocation error
02h 02h Memory in use
02h 03h The specified value cannot be set.
02h 04h Forced onscreen mute on
02h 06h Viewer error
02h 07h No signal
02h 08h A test pattern or filer is displayed.
02h 09h No PC card is inserted.
02h 0Ah Memory operation error
02h 0Ch An entry list is displayed.
02h 0Dh The command cannot be accepted because the power is off.
02h 0Eh The command execution failed.
02h 0Fh There is no authority necessary for the operation.
03h 00h The specified gain number is incorrect.
03h 01h The specified gain is invalid.
03h 02h Adjustment failed.
Bit0 Cover error Bit4 Fan error
Bit1 Temperature error (bi- metallic
strip)
Bit2 None (fixed to 0) Bit6 Lamp (or lamp 1) off
Bit3 Fan error Bit7 Lamp (or lamp 1) in a replacement
DATA02 Error status (2)
Bit0 Lamp (or lamp 1) usage time
exceeded the limit
Bit1 Formatter error Bit5 None (fixed to 0)
Bit2 Lamp 2 off Bit6 None (fixed to 0)
Bit3 None (fixed to 0) Bit7 Refer to the extend status.
DATA03 Error status (3)
Bit0 None (fixed to 0) Bit4 Lamp (or lamp 1) data error
Bit1 FPGA error Bit5 Mirror cover error
Bit2 Temperature error (temperature
sensor)
Bit3 Lamp (or lamp 1) not present Bit7 Lamp 2 usage time exceeded the
DATA04 Error status (4)
Bit0 Lamp 2 not present Bit4 None (fixed to 0)
Bit1 Lamp 2 data error Bit5 Ballast communication error
Bit2 Temperature error due to dust Bit6 Iris calibration error
Bit3 Foreign matter sensor error Bit7 The lens is not installed properly.
DATA05 - 08 Reserved for the system
DATA09 Extended status
Bit0 The portrait cover side is up Bit4 None (fixed to 0)
Bit1 The interlock switch is open. Bit5 None (fixed to 0)
Bit2 System error has occurred.