AI4AVSummary
NEC projector control protocol using binary commands over RS-232C serial and TCP/IP (wired LAN). Supports power on/off, input switching, picture/sound/onscreen mute, volume and picture adjustment, lens control and memory, shutter, freeze, eco mode, edge blending, PIP, and extensive status querying. Commands use a binary frame format with checksum validation.
Transport
protocols:
- serial
- tcp
serial:
baud_rate: 9600 # supports 4800/9600/19200/38400/115200
data_bits: 8
parity: none
stop_bits: 1
flow_control: none # UNRESOLVED: flow_control not explicitly stated; full-duplex communication mode noted
addressing:
port: 7142
auth:
type: none # inferred: no auth procedure in source
Traits
- powerable # inferred from power on/off commands
- routable # inferred from input switching commands
- queryable # inferred from numerous status request commands
- levelable # inferred from volume/picture adjustment commands
Actions
- id: power_on
label: Power On
kind: action
command_hex: "02 00 00 00 00 02"
params: []
notes: No other commands accepted while power is turning on.
- id: power_off
label: Power Off
kind: action
command_hex: "02 01 00 00 00 03"
params: []
notes: No other commands accepted during power-off including cooling time.
- id: input_switch
label: Input Switch
kind: action
command_hex: "02 03 00 00 02 01 <DATA01> <CKS>"
params:
- name: input_terminal
type: enum
values:
- COMPUTER: "01h"
- COMPUTER2: "02h"
- COMPUTER3: "1Ah or 03h"
- VIDEO: "06h"
- S_VIDEO: "0Bh"
- COMPONENT: "10h"
- HDMI: "A1h or 1Ah"
- HDMI2: "A2h or 1Bh"
- DisplayPort: "A6h"
- DisplayPort2: "A7h"
- DVI_D: "9Ch"
- HDBaseT: "BFh"
- SDI: "C4h"
- NETWORK: "20h"
- VIEWER: "1Fh"
description: Input terminal hex code
- id: picture_mute_on
label: Picture Mute On
kind: action
command_hex: "02 10 00 00 00 12"
params: []
notes: Mute is cancelled by input switch or video signal switch.
- id: picture_mute_off
label: Picture Mute Off
kind: action
command_hex: "02 11 00 00 00 13"
params: []
- id: sound_mute_on
label: Sound Mute On
kind: action
command_hex: "02 12 00 00 00 14"
params: []
notes: Mute is cancelled by input switch, video signal switch, or volume adjustment.
- id: sound_mute_off
label: Sound Mute Off
kind: action
command_hex: "02 13 00 00 00 15"
params: []
- id: onscreen_mute_on
label: Onscreen Mute On
kind: action
command_hex: "02 14 00 00 00 16"
params: []
notes: Mute is cancelled by input switch or video signal switch.
- id: onscreen_mute_off
label: Onscreen Mute Off
kind: action
command_hex: "02 15 00 00 00 17"
params: []
- id: picture_adjust
label: Picture Adjust
kind: action
command_hex: "03 10 00 00 05 <DATA01> FF <DATA02> <DATA03> <DATA04> <CKS>"
params:
- name: target
type: enum
values:
- BRIGHTNESS: "00h"
- CONTRAST: "01h"
- COLOR: "02h"
- HUE: "03h"
- SHARPNESS: "04h"
description: Picture adjustment target
- name: mode
type: enum
values:
- ABSOLUTE: "00h"
- RELATIVE: "01h"
description: Absolute or relative adjustment
- name: value
type: integer
description: 16-bit adjustment value (low byte, high byte)
- id: volume_adjust
label: Volume Adjust
kind: action
command_hex: "03 10 00 00 05 05 00 <DATA01> <DATA02> <DATA03> <CKS>"
params:
- name: mode
type: enum
values:
- ABSOLUTE: "00h"
- RELATIVE: "01h"
description: Absolute or relative adjustment
- name: value
type: integer
description: 16-bit adjustment value (low byte, high byte)
- id: aspect_adjust
label: Aspect Adjust
kind: action
command_hex: "03 10 00 00 05 18 00 00 <DATA01> 00 <CKS>"
params:
- name: aspect
type: enum
values:
- AUTO: "00h"
- WIDE_ZOOM: "01h"
- "16:9": "02h"
- NATIVE: "03h"
- "4:3": "04h"
- "15:9": "05h"
- "16:10": "06h"
- LETTER_BOX: "07h"
- ZOOM: "07h or 08h"
- FULL: "09h or 10h"
description: Aspect ratio mode
- id: lamp_adjust
label: Lamp/Light Adjust
kind: action
command_hex: "03 10 00 00 05 96 FF <DATA01> <DATA02> <DATA03> <DATA04> <CKS>"
params:
- name: mode
type: enum
values:
- ABSOLUTE: "00h"
- RELATIVE: "01h"
description: Absolute or relative adjustment
- name: value
type: integer
description: 16-bit adjustment value (low byte, high byte)
- id: remote_key_code
label: Remote Key Code
kind: action
command_hex: "02 0F 00 00 02 <DATA01> <DATA02> <CKS>"
params:
- name: key_code
type: enum
values:
- POWER_ON: "02h 00h"
- POWER_OFF: "03h 00h"
- AUTO: "05h 00h"
- MENU: "06h 00h"
- UP: "07h 00h"
- DOWN: "08h 00h"
- RIGHT: "09h 00h"
- LEFT: "0Ah 00h"
- ENTER: "0Bh 00h"
- EXIT: "0Ch 00h"
- HELP: "0Dh 00h"
- MAGNIFY_UP: "0Fh 00h"
- MAGNIFY_DOWN: "10h 00h"
- MUTE: "13h 00h"
- PICTURE: "29h 00h"
- COMPUTER1: "4Bh 00h"
- COMPUTER2: "4Ch 00h"
- VIDEO1: "4Fh 00h"
- S_VIDEO1: "51h 00h"
- VOLUME_UP: "84h 00h"
- VOLUME_DOWN: "85h 00h"
- FREEZE: "8Ah 00h"
- ASPECT: "A3h 00h"
- SOURCE: "D7h 00h"
- LAMP_MODE_ECO: "EEh 00h"
description: 16-bit key code (DATA01=low, DATA02=high)
- id: shutter_close
label: Shutter Close
kind: action
command_hex: "02 16 00 00 00 18"
params: []
- id: shutter_open
label: Shutter Open
kind: action
command_hex: "02 17 00 00 00 19"
params: []
- id: lens_control
label: Lens Control
kind: action
command_hex: "02 18 00 00 02 06 <DATA02> <CKS>"
params:
- name: direction
type: enum
values:
- STOP: "00h"
- PLUS_1S: "01h"
- PLUS_0_5S: "02h"
- PLUS_0_25S: "03h"
- PLUS_CONTINUOUS: "7Fh"
- MINUS_CONTINUOUS: "81h"
- MINUS_0_25S: "FDh"
- MINUS_0_5S: "FEh"
- MINUS_1S: "FFh"
description: Lens drive direction and duration
notes: Send 00h (STOP) to stop continuous drive.
- id: lens_control_2
label: Lens Control 2
kind: action
command_hex: "02 1D 00 00 04 <DATA01> <DATA02> <DATA03> <DATA04> <CKS>"
params:
- name: operation
type: enum
values:
- STOP: "FFh"
- ADJUST: "other"
description: FFh to stop, otherwise adjust
- name: mode
type: enum
values:
- ABSOLUTE: "00h"
- RELATIVE: "02h"
description: Adjustment mode
- name: value
type: integer
description: 16-bit adjustment value
- id: lens_memory_control
label: Lens Memory Control
kind: action
command_hex: "02 1E 00 00 01 <DATA01> <CKS>"
params:
- name: operation
type: enum
values:
- MOVE: "00h"
- STORE: "01h"
- RESET: "02h"
description: Lens memory operation
- id: reference_lens_memory_control
label: Reference Lens Memory Control
kind: action
command_hex: "02 1F 00 00 01 <DATA01> <CKS>"
params:
- name: operation
type: enum
values:
- MOVE: "00h"
- STORE: "01h"
- RESET: "02h"
description: Reference lens memory operation
- id: lens_memory_option_set
label: Lens Memory Option Set
kind: action
command_hex: "02 21 00 00 02 <DATA01> <DATA02> <CKS>"
params:
- name: option
type: enum
values:
- LOAD_BY_SIGNAL: "00h"
- FORCED_MUTE: "01h"
description: Lens memory option
- name: value
type: enum
values:
- OFF: "00h"
- ON: "01h"
description: Setting value
- id: lens_profile_set
label: Lens Profile Set
kind: action
command_hex: "02 27 00 00 01 <DATA01> <CKS>"
params:
- name: profile
type: enum
values:
- PROFILE_1: "00h"
- PROFILE_2: "01h"
description: Profile number
- id: freeze_control
label: Freeze Control
kind: action
command_hex: "01 98 00 00 01 <DATA01> <CKS>"
params:
- name: state
type: enum
values:
- ON: "01h"
- OFF: "02h"
description: Freeze on or off
- id: eco_mode_set
label: Eco Mode Set
kind: action
command_hex: "03 B1 00 00 02 07 <DATA01> <CKS>"
params:
- name: mode
type: enum
values:
- OFF: "00h"
- NORMAL: "00h or 01h"
- AUTO_ECO: "01h"
- ECO: "02h or 03h"
- ECO1: "02h"
- ECO2: "03h"
- LONG_LIFE: "04h"
- BOOST: "05h"
- SILENT: "06h"
description: Eco mode value
- id: projector_name_set
label: Projector Name Set
kind: action
command_hex: "03 B1 00 00 12 2C <DATA01-16> 00 <CKS>"
params:
- name: name
type: string
description: Projector name (up to 16 bytes)
- id: pip_pbp_set
label: PIP/Picture-by-Picture Set
kind: action
command_hex: "03 B1 00 00 03 C5 <DATA01> <DATA02> <CKS>"
params:
- name: target
type: enum
values:
- MODE: "00h"
- START_POSITION: "01h"
- SUB_INPUT: "02h"
- SUB_INPUT_2: "09h"
- SUB_INPUT_3: "0Ah"
description: PIP/PBP setting target
- name: value
type: integer
description: Setting value (varies by target)
- id: edge_blending_set
label: Edge Blending Set
kind: action
command_hex: "03 B1 00 00 03 DF 00 <DATA01> <CKS>"
params:
- name: state
type: enum
values:
- OFF: "00h"
- ON: "01h"
description: Edge blending state
- id: audio_select_set
label: Audio Select Set
kind: action
command_hex: "03 C9 00 00 03 09 <DATA01> <DATA02> <CKS>"
params:
- name: input_terminal
type: enum
values:
- HDMI1: "00h"
- HDMI2: "01h"
- DisplayPort: "02h"
- HDBaseT: "03h"
- USB_A: "04h"
- USB_B: "05h"
- ETHERNET: "03h or 04h"
description: Audio input terminal
- name: audio_source
type: enum
values:
- SAME_TERMINAL: "00h"
- COMPUTER: "02h"
- BNC: "01h"
description: Audio source selection
- id: carbon_savings_information
label: Carbon Savings Information
kind: query
command_hex: "03 9A 00 00 01 <DATA01> <CKS>"
response_hex: "23 9A <ID1> <ID2> 09 <DATA01-09> <CKS>"
params:
- name: type
type: integer
description: "0x00 = Total Carbon Savings, 0x01 = Carbon Savings during operation"
fields:
- path: DATA01
label: savings_type
type: integer
- path: DATA02-05
label: carbon_savings_kg
type: integer
description: "Carbon Savings in kilograms (max 99999 kg)"
- path: DATA06-09
label: carbon_savings_mg
type: integer
description: "Carbon Savings in milligrams (max 999999 mg)"
Feedbacks
- id: error_status
label: Error Status
command_hex: "00 88 00 00 00 88"
response_hex: "20 88 <ID1> <ID2> 0C <DATA01-12> <CKS>"
type: bitmask
description: 12-byte error status bitmask. Bit=0 normal, bit=1 error.
fields:
- path: DATA01
bits:
- bit: 0
label: cover_error
- bit: 1
label: temperature_error_bimetallic
- bit: 3
label: fan_error
- bit: 4
label: fan_error_alt
- bit: 5
label: power_error
- bit: 6
label: lamp_off_or_backlight_off
- bit: 7
label: lamp_replacement_moratorium
- path: DATA02
bits:
- bit: 0
label: lamp_usage_time_exceeded
- bit: 1
label: formatter_error
- bit: 2
label: lamp_2_off
- bit: 7
label: extended_status
- path: DATA03
bits:
- bit: 1
label: fpga_error
- bit: 2
label: temperature_error_sensor
- bit: 3
label: lamp_not_present
- bit: 4
label: lamp_data_error
- bit: 5
label: mirror_cover_error
- bit: 6
label: lamp_2_replacement_moratorium
- bit: 7
label: lamp_2_usage_time_exceeded
- path: DATA04
bits:
- bit: 0
label: lamp_2_not_present
- bit: 1
label: lamp_2_data_error
- bit: 2
label: temperature_error_dust
- bit: 3
label: foreign_matter_sensor_error
- bit: 5
label: ballast_communication_error
- bit: 6
label: iris_calibration_error
- bit: 7
label: lens_not_installed
- path: DATA09
bits:
- bit: 0
label: portrait_cover_side_up
- bit: 1
label: interlock_switch_open
- bit: 2
label: system_error_slave_cpu
- bit: 3
label: system_error_formatter
- id: running_status
label: Running Status
command_hex: "00 85 00 00 01 01 87"
response_hex: "20 85 <ID1> <ID2> 10 <DATA01-16> <CKS>"
type: composite
fields:
- path: DATA03
label: power_status
type: enum
values:
- STANDBY: "00h"
- POWER_ON: "01h"
- NOT_SUPPORTED: "FFh"
- path: DATA04
label: cooling_process
type: enum
values:
- NOT_EXECUTED: "00h"
- DURING_EXECUTION: "01h"
- NOT_SUPPORTED: "FFh"
- path: DATA05
label: power_on_off_process
type: enum
values:
- NOT_EXECUTED: "00h"
- DURING_EXECUTION: "01h"
- NOT_SUPPORTED: "FFh"
- path: DATA06
label: operation_status
type: enum
values:
- STANDBY_SLEEP: "00h"
- POWER_ON: "04h"
- COOLING: "05h"
- STANDBY_ERROR: "06h"
- STANDBY_POWER_SAVING: "0Fh"
- NETWORK_STANDBY: "10h"
- id: input_status
label: Input Status
command_hex: "00 85 00 00 01 02 88"
response_hex: "20 85 <ID1> <ID2> 10 <DATA01-16> <CKS>"
type: composite
fields:
- path: DATA01
label: signal_switch_process
type: enum
values:
- NOT_EXECUTED: "00h"
- DURING_EXECUTION: "01h"
- NOT_SUPPORTED: "FFh"
- path: DATA03
label: selection_signal_type_1
type: integer
- path: DATA04
label: selection_signal_type_2
type: enum
values:
- COMPUTER: "01h"
- VIDEO: "02h"
- S_VIDEO: "03h"
- COMPONENT: "04h"
- DVI_D: "20h"
- HDMI: "21h"
- DisplayPort: "22h"
- NOT_SOURCE_INPUT: "FFh"
- path: DATA09
label: content_displayed
type: enum
values:
- VIDEO_SIGNAL: "00h"
- NO_SIGNAL: "01h"
- VIEWER: "02h"
- TEST_PATTERN: "03h"
- LAN: "04h"
- NOT_SUPPORTED: "FFh"
- id: mute_status
label: Mute Status
command_hex: "00 85 00 00 01 03 89"
response_hex: "20 85 <ID1> <ID2> 10 <DATA01-16> <CKS>"
type: composite
fields:
- path: DATA01
label: picture_mute
type: enum
values: [OFF, ON]
- path: DATA02
label: sound_mute
type: enum
values: [OFF, ON]
- path: DATA03
label: onscreen_mute
type: enum
values: [OFF, ON]
- path: DATA04
label: forced_onscreen_mute
type: enum
values: [OFF, ON]
- id: model_name
label: Model Name
command_hex: "00 85 00 00 01 04 8A"
response_hex: "20 85 <ID1> <ID2> 20 <DATA01-32> <CKS>"
type: string
description: Model name (NUL-terminated string)
- id: cover_status
label: Cover Status
command_hex: "00 85 00 00 01 05 8B"
response_hex: "20 85 <ID1> <ID2> 01 <DATA01> <CKS>"
type: enum
values:
- NORMAL_COVER_OPENED: "00h"
- COVER_CLOSED: "01h"
- id: information_request
label: Projector Information
command_hex: "03 8A 00 00 00 8D"
response_hex: "23 8A <ID1> <ID2> 62 <DATA01-98> <CKS>"
type: composite
fields:
- path: DATA01-49
label: projector_name
type: string
- path: DATA83-86
label: lamp_usage_time_seconds
type: integer
- path: DATA87-90
label: filter_usage_time_seconds
type: integer
- id: filter_usage_information
label: Filter Usage Information
command_hex: "03 95 00 00 00 98"
response_hex: "23 95 <ID1> <ID2> 08 <DATA01-08> <CKS>"
type: composite
fields:
- path: DATA01-04
label: filter_usage_time_seconds
type: integer
- path: DATA05-08
label: filter_alarm_start_time_seconds
type: integer
- id: lamp_information
label: Lamp Information
command_hex: "03 96 00 00 02 <DATA01> <DATA02> <CKS>"
response_hex: "23 96 <ID1> <ID2> 06 <DATA01-06> <CKS>"
type: composite
params:
- name: lamp
type: enum
values:
- LAMP_1: "00h"
- LAMP_2: "01h"
- name: content
type: enum
values:
- USAGE_TIME_SECONDS: "01h"
- REMAINING_LIFE_PERCENT: "04h"
fields:
- path: DATA03-06
label: obtained_information
type: integer
- id: gain_parameter
label: Gain Parameter
command_hex: "03 05 00 00 03 <DATA01> 00 00 <CKS>"
response_hex: "23 05 <ID1> <ID2> 10 <DATA01-16> <CKS>"
type: composite
params:
- name: target
type: enum
values:
- BRIGHTNESS: "00h"
- CONTRAST: "01h"
- COLOR: "02h"
- HUE: "03h"
- SHARPNESS: "04h"
- VOLUME: "05h"
- LAMP_ADJUST: "96h"
fields:
- path: DATA01
label: status
type: enum
values:
- DISPLAY_NOT_POSSIBLE: "00h"
- ADJUSTMENT_NOT_POSSIBLE: "01h"
- ADJUSTMENT_POSSIBLE: "02h"
- GAIN_NOT_FOUND: "FFh"
- path: DATA02-03
label: upper_limit
type: integer
- path: DATA04-05
label: lower_limit
type: integer
- path: DATA06-07
label: default_value
type: integer
- path: DATA08-09
label: current_value
type: integer
- id: lens_control_request
label: Lens Control Position
command_hex: "02 1C 00 00 02 <DATA01> 00 <CKS>"
response_hex: "22 1C <ID1> <ID2> 08 <DATA01> 00 <DATA02-07> <CKS>"
type: composite
fields:
- path: DATA02-03
label: upper_limit
type: integer
- path: DATA04-05
label: lower_limit
type: integer
- path: DATA06-07
label: current_value
type: integer
- id: lens_information
label: Lens Information
command_hex: "02 22 00 00 01 00 25"
response_hex: "22 22 <ID1> <ID2> 02 00 <DATA01> <CKS>"
type: bitmask
fields:
- bit: 0
label: lens_memory_operation
- bit: 1
label: zoom_operation
- bit: 2
label: focus_operation
- bit: 3
label: lens_shift_h_operation
- bit: 4
label: lens_shift_v_operation
- id: lens_memory_option
label: Lens Memory Option
command_hex: "02 20 00 00 01 <DATA01> <CKS>"
response_hex: "22 20 <ID1> <ID2> 02 <DATA01> <DATA02> <CKS>"
type: composite
params:
- name: option
type: enum
values:
- LOAD_BY_SIGNAL: "00h"
- FORCED_MUTE: "01h"
fields:
- path: DATA02
label: setting_value
type: enum
values:
- OFF: "00h"
- ON: "01h"
- id: lens_profile
label: Lens Profile
command_hex: "02 28 00 00 00 2A"
response_hex: "22 28 <ID1> <ID2> 02 <DATA01> <DATA02> <CKS>"
type: enum
values:
- PROFILE_1: "00h"
- PROFILE_2: "01h"
- id: eco_mode
label: Eco Mode
command_hex: "03 B0 00 00 01 07 BB"
response_hex: "23 B0 <ID1> <ID2> 02 07 <DATA01> <CKS>"
type: enum
values:
- OFF: "00h"
- NORMAL: "00h or 01h"
- AUTO_ECO: "01h"
- ECO: "02h or 03h"
- ECO1: "02h"
- ECO2: "03h"
- LONG_LIFE: "04h"
- BOOST: "05h"
- SILENT: "06h"
- id: projector_name_request
label: Projector Name
command_hex: "03 B0 00 00 01 2C E0"
response_hex: "23 B0 <ID1> <ID2> 12 2C <DATA01-17> <CKS>"
type: string
description: Projector name (NUL-terminated)
- id: mac_address
label: MAC Address
command_hex: "03 B0 00 00 02 9A 00 4F"
response_hex: "23 B0 <ID1> <ID2> 08 9A 00 <DATA01-06> <CKS>"
type: string
description: 6-byte MAC address
- id: serial_number
label: Serial Number
command_hex: "00 BF 00 00 02 01 06 C8"
response_hex: "20 BF <ID1> <ID2> 12 01 06 <DATA01-16> <CKS>"
type: string
description: Serial number (NUL-terminated)
- id: basic_information
label: Basic Information
command_hex: "00 BF 00 00 01 02 C2"
response_hex: "20 BF <ID1> <ID2> 10 02 <DATA01-15> <CKS>"
type: composite
fields:
- path: DATA01
label: operation_status
type: enum
values:
- STANDBY_SLEEP: "00h"
- POWER_ON: "04h"
- COOLING: "05h"
- STANDBY_ERROR: "06h"
- STANDBY_POWER_SAVING: "0Fh"
- NETWORK_STANDBY: "10h"
- path: DATA02
label: content_displayed
type: enum
values:
- VIDEO_SIGNAL: "00h"
- NO_SIGNAL: "01h"
- VIEWER: "02h"
- TEST_PATTERN: "03h"
- LAN: "04h"
- TEST_PATTERN_USER: "05h"
- SIGNAL_SWITCHING: "10h"
- path: DATA06
label: video_mute
type: enum
values: [OFF, ON]
- path: DATA07
label: sound_mute
type: enum
values: [OFF, ON]
- path: DATA08
label: onscreen_mute
type: enum
values: [OFF, ON]
- path: DATA09
label: freeze_status
type: enum
values: [OFF, ON]
- id: information_string
label: Information String
command_hex: "00 D0 00 00 03 00 <DATA01> 01 <CKS>"
response_hex: "20 D0 <ID1> <ID2> LEN <DATA01> 01 <DATA02> <DATA03-??> <CKS>"
type: string
params:
- name: info_type
type: enum
values:
- HORIZONTAL_SYNC_FREQ: "03h"
- VERTICAL_SYNC_FREQ: "04h"
description: Frequency information string (NUL-terminated)
- id: setting_request
label: Setting Information
command_hex: "00 85 00 00 01 00 86"
response_hex: "20 85 <ID1> <ID2> 20 <DATA01-32> <CKS>"
type: composite
fields:
- path: DATA01-03
label: base_model_type
type: integer
- path: DATA04
label: sound_function
type: enum
values:
- NOT_AVAILABLE: "00h"
- AVAILABLE: "01h"
- path: DATA05
label: profile_number
type: enum
values:
- NOT_AVAILABLE: "00h"
- CLOCK_FUNCTION: "01h"
- SLEEP_TIMER: "02h"
- CLOCK_AND_SLEEP: "03h"
Variables
- id: brightness
label: Brightness
type: integer
writable: true
description: Picture brightness (adjust via picture_adjust action)
# UNRESOLVED: valid range not explicitly stated; gain parameter request returns upper/lower limits dynamically
- id: contrast
label: Contrast
type: integer
writable: true
description: Picture contrast
- id: color
label: Color
type: integer
writable: true
description: Picture color saturation
- id: hue
label: Hue
type: integer
writable: true
description: Picture hue
- id: sharpness
label: Sharpness
type: integer
writable: true
description: Picture sharpness
- id: volume
label: Volume
type: integer
writable: true
description: Sound volume level
- id: lamp_adjust
label: Lamp/Light Level
type: integer
writable: true
description: Lamp or light output level
- id: eco_mode
label: Eco Mode
type: enum
writable: true
values: [OFF, NORMAL, AUTO_ECO, ECO, ECO1, ECO2, LONG_LIFE, BOOST, SILENT]
description: Eco/lamp mode setting
- id: edge_blending
label: Edge Blending
type: enum
writable: true
values: [OFF, ON]
description: Edge blending mode
- id: freeze
label: Freeze
type: enum
writable: true
values: [ON, OFF]
description: Freeze display state
- id: projector_name
label: Projector Name
type: string
writable: true
description: Network projector name (up to 16 bytes)
Events
# UNRESOLVED: no unsolicited event/notification protocol described in source
# The protocol appears to be strictly request-response
Macros
# UNRESOLVED: no multi-step sequences explicitly described in source
Safety
confirmation_required_for:
- power_off # cooling period follows; no commands accepted during cooling
interlocks:
- description: No commands accepted during power-on or power-off (including cooling) sequence
- description: Interlock switch open status reported in error status DATA09 bit 1
# UNRESOLVED: full safety interlock procedures not documented in source
Notes
- Command protocol is binary with hex byte frames. Each command includes a checksum byte calculated as the low-order 8 bits of the sum of all preceding bytes.
- Response format uses a leading byte with bit 7 set (Axh) for error responses and (2xh/2xh) for success. Commands starting with 02h get 22h response prefix; 03h get 23h; 00h get 20h.
- Power on/off commands block all other commands during the transition period (including cooling after power-off).
- Error responses include ERR1/ERR2 byte pairs with specific error codes (see section 2.4 of source).
- Mute states (picture, sound, onscreen) are automatically cancelled by input switch or video signal change. Sound mute is also cancelled by volume adjustment.
- Lamp usage time and filter usage time are returned in seconds but updated at one-minute intervals.
- Serial baud rate supports 4800, 9600, 19200, 38400, and 115200 bps. Default is not stated.
- Some input terminal and eco mode hex values vary by model (see Appendix tables).
- Standby mode requirements for receiving power-on commands vary by model and connection type (serial vs LAN).
- The
compatible_with.modelsfield uses "NEC Display" as a generic placeholder; this command reference covers multiple NEC projector models (the source document references model-specific variations throughout).
Provenance
source_domains:
- sharpdisplays.eu
source_urls:
- https://www.sharpdisplays.eu/p/download/cp/Products/Projectors/Shared/CommandLists/NEC-ExternalControlManual-english.pdf
retrieved_at: 2026-04-30T00:18:04.588Z
last_checked_at: 2026-06-02T22:10:11.069Z
Verification Summary
verdict: verified
checked_at: 2026-06-02T22:10:11.069Z
matched_actions: 29
action_count: 29
confidence: medium
summary: "All 29 spec actions traced to source (dip-safe re-verify). (11 unresolved item(s) noted in Known Gaps.)"
Known Gaps
- "flow_control not explicitly stated; full-duplex communication mode noted"
- "valid range not explicitly stated; gain parameter request returns upper/lower limits dynamically"
- "no unsolicited event/notification protocol described in source"
- "no multi-step sequences explicitly described in source"
- "full safety interlock procedures not documented in source"
- "specific projector models covered by this command reference not enumerated in source"
- "default serial baud rate not stated (only supported rates listed)"
- "flow control method not stated (full-duplex mode noted)"
- "command timing/latency specifications not stated"
- "maximum concurrent connection count not stated"
- "protocol version not stated (document revision BDT140013 Rev 7.1)"
From the AI4AV catalog (https://ai4av.net) · ODbL-1.0