Canon 4K501ST RS-232 / IP control commands

Summary

Canon 4K501ST multimedia projector, controllable via RS-232C (19200 8N2, CR-delimited ASCII) or LAN (TCP/IP, port 33336). Commands take the form <COMMAND>=<value> for settings and GET=<COMMAND> for reference; responses are i:OK / i:BUSY, g:<command>=<value>, or e:<error> strings terminated with CR. Spec covers all 66 user commands from the vendor command list.

Transport

protocols:
  - tcp
  - serial
addressing:
  port: 33336
serial:
  baud_rate: 19200
  data_bits: 8
  parity: none
  stop_bits: 2
  flow_control: none
auth:
  type: none  # inferred: no auth procedure in source

Traits

# inferred from command evidence in source
traits:
  - powerable   # POWER command present
  - routable    # INPUT input-signal selection present
  - queryable   # GET= reference commands present
  - levelable   # AVOL, BRI, CONT, HUE, SAT, SHARP, GAMMA numeric settings present

Actions

# Setting commands: `CMD=value` + CR. Reference commands: `GET=CMD` + CR.
# Delimiter CR (0Dh) implied on every command - not repeated per entry.

# --- 6-axis color adjustment ---
- id: 6axadj_set
  label: 6-axis Color Adjustment On/Off
  kind: action
  command: "6AXADJ={state}"
  params:
    - name: state
      type: enum
      values: [ON, OFF]
- id: 6axadj_query
  label: 6-axis Color Adjustment Query
  kind: query
  command: "GET=6AXADJ"
  params: []
- id: 6axr_set
  label: 6-axis Adjustment Red (hue/saturation/brightness)
  kind: action
  command: "6AXR={hue},{saturation},{brightness}"
  params:
    - name: hue
      type: integer
      description: "R hue, -20 to 20"
    - name: saturation
      type: integer
      description: "R saturation, -20 to 20"
    - name: brightness
      type: integer
      description: "R brightness, -20 to 20"
- id: 6axr_query
  label: 6-axis Adjustment Red Query
  kind: query
  command: "GET=6AXR"
  params: []
- id: 6axg_set
  label: 6-axis Adjustment Green (hue/saturation/brightness)
  kind: action
  command: "6AXG={hue},{saturation},{brightness}"
  params:
    - name: hue
      type: integer
      description: "G hue, -20 to 20"
    - name: saturation
      type: integer
      description: "G saturation, -20 to 20"
    - name: brightness
      type: integer
      description: "G brightness, -20 to 20"
- id: 6axg_query
  label: 6-axis Adjustment Green Query
  kind: query
  command: "GET=6AXG"
  params: []
- id: 6axb_set
  label: 6-axis Adjustment Blue (hue/saturation/brightness)
  kind: action
  command: "6AXB={hue},{saturation},{brightness}"
  params:
    - name: hue
      type: integer
      description: "B hue, -20 to 20"
    - name: saturation
      type: integer
      description: "B saturation, -20 to 20"
    - name: brightness
      type: integer
      description: "B brightness, -20 to 20"
- id: 6axb_query
  label: 6-axis Adjustment Blue Query
  kind: query
  command: "GET=6AXB"
  params: []
- id: 6axc_set
  label: 6-axis Adjustment Cyan (hue/saturation/brightness)
  kind: action
  command: "6AXC={hue},{saturation},{brightness}"
  params:
    - name: hue
      type: integer
      description: "C hue, -20 to 20"
    - name: saturation
      type: integer
      description: "C saturation, -20 to 20"
    - name: brightness
      type: integer
      description: "C brightness, -20 to 20"
- id: 6axc_query
  label: 6-axis Adjustment Cyan Query
  kind: query
  command: "GET=6AXC"
  params: []
- id: 6axm_set
  label: 6-axis Adjustment Magenta (hue/saturation/brightness)
  kind: action
  command: "6AXM={hue},{saturation},{brightness}"
  params:
    - name: hue
      type: integer
      description: "M hue, -20 to 20"
    - name: saturation
      type: integer
      description: "M saturation, -20 to 20"
    - name: brightness
      type: integer
      description: "M brightness, -20 to 20"
- id: 6axm_query
  label: 6-axis Adjustment Magenta Query
  kind: query
  command: "GET=6AXM"
  params: []
- id: 6axy_set
  label: 6-axis Adjustment Yellow (hue/saturation/brightness)
  kind: action
  command: "6AXY={hue},{saturation},{brightness}"
  params:
    - name: hue
      type: integer
      description: "Y hue, -20 to 20"
    - name: saturation
      type: integer
      description: "Y saturation, -20 to 20"
    - name: brightness
      type: integer
      description: "Y brightness, -20 to 20"
- id: 6axy_query
  label: 6-axis Adjustment Yellow Query
  kind: query
  command: "GET=6AXY"
  params: []

# --- Ambient light ---
- id: ambadj_set
  label: Ambient Light Correction Adjustment
  kind: action
  command: "AMBADJ={state}"
  params:
    - name: state
      type: enum
      values: [ON]
- id: ambadj_query
  label: Ambient Light Correction Query
  kind: query
  command: "GET=AMBADJ"
  params: []
- id: amblevel_set
  label: Ambient Light Level Setting
  kind: action
  command: "AMBLEVEL={level}"
  params:
    - name: level
      type: enum
      values: [WEAK, STRONG]
- id: amblevel_query
  label: Ambient Light Level Query
  kind: query
  command: "GET=AMBLEVEL"
  params: []
- id: ambtype_set
  label: Ambient Light Type Setting
  kind: action
  command: "AMBTYPE={type}"
  params:
    - name: type
      type: enum
      values: [TG, FL]
      description: "TG=Tungsten lamp, FL=Fluorescent lamp"
- id: ambtype_query
  label: Ambient Light Type Query
  kind: query
  command: "GET=AMBTYPE"
  params: []

# --- Audio input terminal selection ---
- id: aseld1_set
  label: DVI-1 Audio Input Terminal Selection
  kind: action
  command: "ASELD1={terminal}"
  params:
    - name: terminal
      type: string
      description: "Digital PC audio terminal selection ID (example value: 1). UNRESOLVED: valid values not enumerated in source"
- id: aseld1_query
  label: DVI-1 Audio Input Terminal Query
  kind: query
  command: "GET=ASELD1"
  params: []
- id: aseld2_set
  label: DVI-2 Audio Input Terminal Selection
  kind: action
  command: "ASELD2={terminal}"
  params:
    - name: terminal
      type: string
      description: "Digital PC audio terminal selection ID (example value: 1). UNRESOLVED: valid values not enumerated in source"
- id: aseld2_query
  label: DVI-2 Audio Input Terminal Query
  kind: query
  command: "GET=ASELD2"
  params: []
- id: aseld3_set
  label: DVI-3 Audio Input Terminal Selection
  kind: action
  command: "ASELD3={terminal}"
  params:
    - name: terminal
      type: string
      description: "Digital PC audio terminal selection ID (example value: 1). UNRESOLVED: valid values not enumerated in source"
- id: aseld3_query
  label: DVI-3 Audio Input Terminal Query
  kind: query
  command: "GET=ASELD3"
  params: []
- id: aseld4_set
  label: DVI-4 Audio Input Terminal Selection
  kind: action
  command: "ASELD4={terminal}"
  params:
    - name: terminal
      type: string
      description: "Digital PC audio terminal selection ID (example value: 1). UNRESOLVED: valid values not enumerated in source"
- id: aseld4_query
  label: DVI-4 Audio Input Terminal Query
  kind: query
  command: "GET=ASELD4"
  params: []
- id: aseldx2_set
  label: DVI 1x2 Audio Input Terminal Selection
  kind: action
  command: "ASELDX2={terminal}"
  params:
    - name: terminal
      type: string
      description: "Digital PC audio terminal selection ID (example value: 1). UNRESOLVED: valid values not enumerated in source"
- id: aseldx2_query
  label: DVI 1x2 Audio Input Terminal Query
  kind: query
  command: "GET=ASELDX2"
  params: []
- id: aseldx4_set
  label: DVI 2x2 / 1x4 Audio Input Terminal Selection
  kind: action
  command: "ASELDX4={terminal}"
  params:
    - name: terminal
      type: string
      description: "Digital PC audio terminal selection ID (example value: 1). UNRESOLVED: valid values not enumerated in source"
- id: aseldx4_query
  label: DVI 2x2 / 1x4 Audio Input Terminal Query
  kind: query
  command: "GET=ASELDX4"
  params: []
- id: aselh1_set
  label: HDMI-1 Audio Input Terminal Selection
  kind: action
  command: "ASELH1={terminal}"
  params:
    - name: terminal
      type: enum
      values: [H1]
      description: "H1 = HDMI1 audio"
- id: aselh1_query
  label: HDMI-1 Audio Input Terminal Query
  kind: query
  command: "GET=ASELH1"
  params: []
- id: aselh2_set
  label: HDMI-2 Audio Input Terminal Selection
  kind: action
  command: "ASELH2={terminal}"
  params:
    - name: terminal
      type: enum
      values: [H2, OFF]
      description: "H2 = HDMI2 audio, OFF = turned off"
- id: aselh2_query
  label: HDMI-2 Audio Input Terminal Query
  kind: query
  command: "GET=ASELH2"
  params: []
- id: aselhx2_set
  label: HDMIx2 Audio Input Terminal Selection
  kind: action
  command: "ASELHX2={terminal}"
  params:
    - name: terminal
      type: enum
      values: [H1, H2, "1"]
      description: "H1 = HDMI1 audio, H2 = HDMI2 audio, 1 = Audio in 1"
- id: aselhx2_query
  label: HDMIx2 Audio Input Terminal Query
  kind: query
  command: "GET=ASELHX2"
  params: []

# --- Picture / image settings ---
- id: aspect_set
  label: Aspect Ratio Setting
  kind: action
  command: "ASPECT={mode}"
  params:
    - name: mode
      type: enum
      values: [AUTO, TRUE]
- id: aspect_query
  label: Aspect Ratio Query
  kind: query
  command: "GET=ASPECT"
  params: []
- id: avol_set
  label: Audio Volume Adjustment
  kind: action
  command: "AVOL={volume}"
  params:
    - name: volume
      type: integer
      description: "Audio volume, 0 to 20. Adjusting during mute cancels mute"
- id: avol_query
  label: Audio Volume Query
  kind: query
  command: "GET=AVOL"
  params: []
- id: blank_set
  label: Screen Blank
  kind: action
  command: "BLANK={state}"
  params:
    - name: state
      type: enum
      values: [ON, OFF]
      description: "Executing in FREEZE status cancels FREEZE and becomes BLANK"
- id: blank_query
  label: Screen Blank Query
  kind: query
  command: "GET=BLANK"
  params: []
- id: bri_set
  label: Brightness Setting
  kind: action
  command: "BRI={level}"
  params:
    - name: level
      type: integer
      description: "-20 to 20"
- id: bri_query
  label: Brightness Query
  kind: query
  command: "GET=BRI"
  params: []
- id: color_temp_set
  label: Color Temperature Setting
  kind: action
  command: "COLOR_TEMP={level}"
  params:
    - name: level
      type: integer
      description: "-17 to 21"
- id: color_temp_query
  label: Color Temperature Query
  kind: query
  command: "GET=COLOR_TEMP"
  params: []
- id: cont_set
  label: Contrast Setting
  kind: action
  command: "CONT={level}"
  params:
    - name: level
      type: integer
      description: "-20 to 20"
- id: cont_query
  label: Contrast Query
  kind: query
  command: "GET=CONT"
  params: []
- id: dgamma_set
  label: Dynamic Gamma Setting
  kind: action
  command: "DGAMMA={mode}"
  params:
    - name: mode
      type: enum
      values: [WEAK]
      description: "UNRESOLVED: only WEAK shown in source example; other values not enumerated"
- id: dgamma_query
  label: Dynamic Gamma Query
  kind: query
  command: "GET=DGAMMA"
  params: []
- id: fine_gamma_r_set
  label: Fine Gamma R Setting
  kind: action
  command: "FINE_GAMMA_R={values}"
  params:
    - name: values
      type: string
      description: "Comma-separated adjustment point values (9 points in example), each 0 to 1024. Menu enforces point1-point9 >= 128; user commands do not"
- id: fine_gamma_r_query
  label: Fine Gamma R Query
  kind: query
  command: "GET=FINE_GAMMA_R"
  params: []
- id: fine_gamma_g_set
  label: Fine Gamma G Setting
  kind: action
  command: "FINE_GAMMA_G={values}"
  params:
    - name: values
      type: string
      description: "Comma-separated adjustment point values (9 points in example), each 0 to 1024"
- id: fine_gamma_g_query
  label: Fine Gamma G Query
  kind: query
  command: "GET=FINE_GAMMA_G"
  params: []
- id: fine_gamma_b_set
  label: Fine Gamma B Setting
  kind: action
  command: "FINE_GAMMA_B={values}"
  params:
    - name: values
      type: string
      description: "Comma-separated adjustment point values (9 points in example), each 0 to 1024"
- id: fine_gamma_b_query
  label: Fine Gamma B Query
  kind: query
  command: "GET=FINE_GAMMA_B"
  params: []
- id: fltwrn_set
  label: Air Filter Cleaning Warning Display
  kind: action
  command: "FLTWRN={state}"
  params:
    - name: state
      type: enum
      values: [ON, OFF]
      description: "ON from parameter table; OFF from usage example in source"
- id: fltwrn_query
  label: Air Filter Cleaning Warning Query
  kind: query
  command: "GET=FLTWRN"
  params: []
- id: freeze_set
  label: Screen Freeze
  kind: action
  command: "FREEZE={state}"
  params:
    - name: state
      type: enum
      values: [ON, OFF]
- id: freeze_query
  label: Screen Freeze Query
  kind: query
  command: "GET=FREEZE"
  params: []
- id: gamma_set
  label: Gamma Adjustment
  kind: action
  command: "GAMMA={level}"
  params:
    - name: level
      type: integer
      description: "-10 to 10"
- id: gamma_query
  label: Gamma Adjustment Query
  kind: query
  command: "GET=GAMMA"
  params: []
- id: htmpinf_set
  label: High Temperature Caution Display Setting
  kind: action
  command: "HTMPINF={state}"
  params:
    - name: state
      type: enum
      values: [ON]
      description: "UNRESOLVED: only ON documented; OFF presumed but not stated"
- id: htmpinf_query
  label: High Temperature Caution Display Query
  kind: query
  command: "GET=HTMPINF"
  params: []
- id: hue_set
  label: Hue Setting
  kind: action
  command: "HUE={level}"
  params:
    - name: level
      type: integer
      description: "-20 to 20"
- id: hue_query
  label: Hue Query
  kind: query
  command: "GET=HUE"
  params: []
- id: image_set
  label: Image Mode Setting
  kind: action
  command: "IMAGE={mode}"
  params:
    - name: mode
      type: enum
      values: [STANDARD, PRESENTATION, PHOTO_SRGB, DCM_SIM, DYNAMIC, VIDEO, USER_1, USER_2, USER_3]
      description: "Changing mode reapplies the mode's unique setting-item set"
- id: image_query
  label: Image Mode Query
  kind: query
  command: "GET=IMAGE"
  params: []
- id: imageflip_set
  label: Flip Display Setting
  kind: action
  command: "IMAGEFLIP={mode}"
  params:
    - name: mode
      type: enum
      values: [NONE, CEILING, REAR, REAR_CEILING]
      description: "Flipping display initializes keystone distortion settings"
- id: imageflip_query
  label: Flip Display Query
  kind: query
  command: "GET=IMAGEFLIP"
  params: []
- id: input_set
  label: Input Signal Selection
  kind: action
  command: "INPUT={input}"
  params:
    - name: input
      type: enum
      values: [HDMI1, HDMI2, HDMI1X2, D-RGB1, D-RGB2, D-RGB3, D-RGB4, D-RGB1X2, D-RGB2X2, D-RGB1X4]
- id: input_query
  label: Input Signal Query
  kind: query
  command: "GET=INPUT"
  params: []
- id: iris_set
  label: Iris Setting
  kind: action
  command: "IRIS={mode}"
  params:
    - name: mode
      type: enum
      values: [OPEN, CLOSE1, CLOSE2, CLOSE3]
- id: iris_query
  label: Iris Setting Query
  kind: query
  command: "GET=IRIS"
  params: []

# --- Keys / panel / remote ---
- id: krep_set
  label: Key Repeat Setting
  kind: action
  command: "KREP={state}"
  params:
    - name: state
      type: enum
      values: [OFF, ON]
- id: krep_query
  label: Key Repeat Query
  kind: query
  command: "GET=KREP"
  params: []
- id: lamp_set
  label: Lamp Mode Setting
  kind: action
  command: "LAMP={mode}"
  params:
    - name: mode
      type: enum
      values: [FULL, ECO]
- id: lamp_query
  label: Lamp Mode Query
  kind: query
  command: "GET=LAMP"
  params: []
- id: lmpwrn_set
  label: Lamp Replacement Warning Display Setting
  kind: action
  command: "LMPWRN={state}"
  params:
    - name: state
      type: enum
      values: [OFF, ON]
- id: lmpwrn_query
  label: Lamp Replacement Warning Query
  kind: query
  command: "GET=LMPWRN"
  params: []
- id: lposld_set
  label: Lens Position Load
  kind: action
  command: "LPOSLD={position}"
  params:
    - name: position
      type: enum
      values: ["1", "2", "3"]
      description: "Cannot be set when position save has not been executed; position save itself is menu-only"
- id: main_emulation
  label: Unit Control Panel Emulation
  kind: action
  command: "MAIN={button}"
  params:
    - name: button
      type: enum
      values: [POWER, POWER_OFF, MENU, INPUT, AUTOPC, KEYSTONE, UP, "UP+REP", DOWN, "DOWN+REP", LEFT, "LEFT+REP", RIGHT, "RIGHT+REP", OK, "*-REP"]
      description: "+REP = button press start; always end with *-REP (button press end). i:OK means request accepted, not executed. All params except POWER invalid in standby"

# --- Memory color ---
- id: memf_set
  label: Memory Color Adjustment Flesh
  kind: action
  command: "MEMF={level}"
  params:
    - name: level
      type: enum
      values: [MIDDLE]
      description: "UNRESOLVED: only MIDDLE shown in source example; other values not enumerated. Applies to current input signal and image mode"
- id: memf_query
  label: Memory Color Adjustment Flesh Query
  kind: query
  command: "GET=MEMF"
  params: []
- id: memg_set
  label: Memory Color Adjustment Green
  kind: action
  command: "MEMG={level}"
  params:
    - name: level
      type: enum
      values: [MIDDLE]
      description: "UNRESOLVED: only MIDDLE shown in source example"
- id: memg_query
  label: Memory Color Adjustment Green Query
  kind: query
  command: "GET=MEMG"
  params: []
- id: mems_set
  label: Memory Color Adjustment Sky
  kind: action
  command: "MEMS={level}"
  params:
    - name: level
      type: enum
      values: [MIDDLE]
      description: "UNRESOLVED: only MIDDLE shown in source example"
- id: mems_query
  label: Memory Color Adjustment Sky Query
  kind: query
  command: "GET=MEMS"
  params: []
- id: mute_set
  label: Audio Mute
  kind: action
  command: "MUTE={state}"
  params:
    - name: state
      type: enum
      values: [ON, OFF]
      description: "Mute always OFF after power-on; volume adjustment cancels mute"
- id: mute_query
  label: Audio Mute Query
  kind: query
  command: "GET=MUTE"
  params: []
- id: nr_set
  label: Random Noise Reduction Setting
  kind: action
  command: "NR={level}"
  params:
    - name: level
      type: enum
      values: [MIDDLE]
      description: "UNRESOLVED: only MIDDLE shown in source example; other values not enumerated"
- id: nr_query
  label: Random Noise Reduction Query
  kind: query
  command: "GET=NR"
  params: []
- id: nrmpg_set
  label: MPEG Noise Reduction Setting
  kind: action
  command: "NRMPG={level}"
  params:
    - name: level
      type: enum
      values: [MIDDLE]
      description: "UNRESOLVED: only MIDDLE shown in source example; other values not enumerated"
- id: nrmpg_query
  label: MPEG Noise Reduction Query
  kind: query
  command: "GET=NRMPG"
  params: []

# --- Power ---
- id: power_set
  label: Power Supply Control
  kind: action
  command: "POWER={state}"
  params:
    - name: state
      type: enum
      values: [ON, OFF]
- id: power_query
  label: Power Status Query
  kind: query
  command: "GET=POWER"
  params: []
  # response: g:POWER=<OFF|OFF2ON|ON|ON2PMM|PMM|PMM2ON|ON2OFF> - see Feedbacks

# --- RGB gain/offset ---
- id: rgbgain_set
  label: RGB Gain Adjustment
  kind: action
  command: "RGBGAIN={r},{g},{b}"
  params:
    - name: r
      type: integer
      description: "R gain, -60 to 60"
    - name: g
      type: integer
      description: "G gain, -60 to 60"
    - name: b
      type: integer
      description: "B gain, -60 to 60"
- id: rgbgain_query
  label: RGB Gain Query
  kind: query
  command: "GET=RGBGAIN"
  params: []
- id: rgboffset_set
  label: RGB Offset Adjustment
  kind: action
  command: "RGBOFFSET={r},{g},{b}"
  params:
    - name: r
      type: integer
      description: "R offset, -60 to 60"
    - name: g
      type: integer
      description: "G offset, -60 to 60"
    - name: b
      type: integer
      description: "B offset, -60 to 60"
- id: rgboffset_query
  label: RGB Offset Query
  kind: query
  command: "GET=RGBOFFSET"
  params: []
- id: sat_set
  label: Color Saturation Setting
  kind: action
  command: "SAT={level}"
  params:
    - name: level
      type: integer
      description: "-20 to 20"
- id: sat_query
  label: Color Saturation Query
  kind: query
  command: "GET=SAT"
  params: []
- id: saveimgprof_set
  label: User Memory Creation/Storage/Deletion
  kind: action
  command: "SAVEIMGPROF={operation}"
  params:
    - name: operation
      type: enum
      values: [USER_1, USER_2, USER_3, DEL_ALL]
      description: "DEL_ALL restores factory-default state"
- id: saveimgprof_query
  label: User Memory Presence Query
  kind: query
  command: "GET=SAVEIMGPROF"
  params: []
  # response: g:SAVEIMGPROF=<count>:<user1>,<user2>,<user3>
- id: sharp_set
  label: Sharpness Setting
  kind: action
  command: "SHARP={level}"
  params:
    - name: level
      type: integer
      description: "-10 to 10"
- id: sharp_query
  label: Sharpness Query
  kind: query
  command: "GET=SHARP"
  params: []
- id: sigmsg_set
  label: Input Status Display Setting
  kind: action
  command: "SIGMSG={state}"
  params:
    - name: state
      type: enum
      values: [ON]
      description: "UNRESOLVED: only ON documented; OFF presumed but not stated"
- id: sigmsg_query
  label: Input Status Display Query
  kind: query
  command: "GET=SIGMSG"
  params: []
- id: tptn_set
  label: Test Pattern Setting
  kind: action
  command: "TPTN={pattern}"
  params:
    - name: pattern
      type: enum
      values: [OFF, CB1, SSH1, SSH2, SSH3, SSV1, SSV2, SSV3, RTF1, RTF2, RTF3, RTF4, RTH1, RTH2, RTH3, RTH4, SSC1, SSC2, CKR1, CKR2, MUL1, MUL2, CHR1, FCS1, BDR1, CRS1, CRS2, CRS3, DCM1]
      description: "OFF plus 28 test patterns (color bar, stair steps, rasters, checker, DICOM chart, etc.)"
- id: tptn_query
  label: Test Pattern Query
  kind: query
  command: "GET=TPTN"
  params: []

# --- Remote control emulation ---
- id: rc_emulation
  label: Remote Control Operation Emulation
  kind: action
  command: "RC={button}"
  params:
    - name: button
      type: enum
      values: [POWER, POWER_OFF, MENU, EXIT, INPUT, DPC, APC1, APC2, HDMI, COMP, ASPECT, AUTOPC, UP, "UP+REP", DOWN, "DOWN+REP", LEFT, "LEFT+REP", RIGHT, "RIGHT+REP", OK, FOCUS, ZOOM, SHIFT, TPTN, KEYSTONE, NUM_0, NUM_1, NUM_2, NUM_3, NUM_4, NUM_5, NUM_6, NUM_7, NUM_8, NUM_9, DZOOM_P, "DZOOM_P+REP", DZOOM_M, "DZOOM_M+REP", VOL_P, "VOL_P+REP", VOL_M, "VOL_M+REP", MUTE, FN, IMAGE, FREEZE, BLANK, GAMMA, SPLIT, ECO, "*-REP"]
      description: "+REP = button press start; always send *-REP at end to finish press. i:OK means request accepted, not executed"

# --- Inquiry-only commands ---
- id: comver_query
  label: User Command Version Inquiry
  kind: query
  command: "GET=COMVER"
  params: []
- id: err_query
  label: Error Information Inquiry
  kind: query
  command: "GET=ERR"
  params: []
- id: lampcounter_query
  label: Lamp Counter Inquiry
  kind: query
  command: "GET=LAMPCOUNTER"
  params: []
- id: prodcode_query
  label: Product Name Inquiry
  kind: query
  command: "GET=PRODCODE"
  params: []
- id: romver_query
  label: Firmware Version Inquiry
  kind: query
  command: "GET=ROMVER"
  params: []
- id: signal_info_query
  label: Displayed Signal Information Inquiry
  kind: query
  command: "GET=SIGNAL_INFO"
  params: []
- id: signalstatus_query
  label: Signal Detection Inquiry
  kind: query
  command: "GET=SIGNALSTATUS"
  params: []
- id: temp_query
  label: Temperature Sensor Value Inquiry
  kind: query
  command: "GET=TEMP"
  params: []

Feedbacks

- id: power_mode
  type: enum
  values: [OFF, OFF2ON, ON, ON2PMM, PMM, PMM2ON, ON2OFF]
  description: "From GET=POWER response. Transition values: OFF2ON (OFF->ON), ON2PMM (ON->lamp off), PMM2ON (lamp off->ON), ON2OFF (ON->OFF)"
- id: error_state
  type: enum
  values: [NO_ERROR, ABNORMAL_TEMPERATURE, FAULTY_LAMP, FAULTY_LAMP_COVER, FAULTY_COOLING_FAN, FAULTY_POWER_SUPPLY, FAULTY_AIR_FILTER]
  description: "From GET=ERR. Warning LED state; NO_ERROR when LED not lit"
- id: signal_status
  type: enum
  values: [NO_SIGNAL, DISPLAYING, SETTING, UNSUPPORTED, INSUFFICIENT]
  description: "From GET=SIGNALSTATUS for selected input. e:1011 returned during BLANK"
- id: lamp_counter
  type: string
  description: "From GET=LAMPCOUNTER. Bracketed code encoding cumulative lamp-on hours, e.g. \"[GGG_____]\" = 1080-1619 H"
- id: temperature_sensors
  type: string
  description: "From GET=TEMP. Format <sensor count>,<value 1>,...,<value n>; count can be 0. Example: 5,28.5,53.3,53.3,53.3,33.0"
- id: command_version
  type: string
  description: "From GET=COMVER. 2-digit + 4-digit format, e.g. \"01.1234\""
- id: product_code
  type: string
  description: "From GET=PRODCODE. Returns \"4K501ST\""
- id: rom_version
  type: string
  description: "From GET=ROMVER. Example \"01.234567_12345\""
- id: signal_info
  type: string
  description: "From GET=SIGNAL_INFO. Example \"1920 x 1200 60\". Empty for USB/LAN display; e:1011 during test pattern"
- id: user_memory_status
  type: string
  description: "From GET=SAVEIMGPROF. Format <count>:<user1 present>,<user2 present>,<user3 present>, e.g. 3:0,1,1"
- id: command_ack
  type: enum
  values: [OK, BUSY]
  description: "Normal response prefix i:. BUSY during internal processing - wait and resend"
- id: error_response
  type: string
  description: "Error responses e:<error ID> <info>: e:0002 INVALID_COMMAND, e:000A INVALID_PARAMETER, e:F001 SYSTEM, e:0005 NOT_POWER_SUPPLIED, e:1011 FUNCTION_NOT_AVAILABLE, e:201F INVALID_SIGNAL"

Variables

# All settable parameters are represented as discrete Actions (set + query pairs).
# No additional variables beyond those actions. Section N/A.

Events

# No unsolicited notifications documented in source. Projector only responds to commands.
# UNRESOLVED: no event mechanism stated

Macros

# No multi-step sequences described in source. Section N/A.

Safety

confirmation_required_for: []
interlocks: []
# UNRESOLVED: source contains no explicit interlock procedures or power-on
# sequencing requirements. Note: error-processing section (chapter 8) is a
# picture omitted during extraction.

Notes

Command format: <command text>=<value> + CR (0Dh), or bare <command text> + CR. Queries use GET=<command>. Max 256 characters including delimiter.
Response format: first char is type (i normal, g reference, e error) followed by :. All responses CR-terminated.
Serial: RS-232C start-stop sync half-duplex, 19200 bps, 8 data bits, 2 stop bits, no parity, no flow/error control, no break signal. 9-pin crossover cable, 3-line SD/RD/SG.
LAN: TCP port 33336; socket closes after 30 s without a command; network function must be enabled on projector first.
Timeouts: Tc (inter-character) 1 s — exceeding it or missing delimiter within 256 chars discards the partial command; Tr (command→response) 15 s — resend on timeout.
Strict request/response lock-step: next command only after response; 2nd+ simultaneous commands discarded; LAN packets with embedded multiple commands process only the first.
Commands are case-insensitive; use uppercase by convention.
Power-mode restrictions: commands executable only in modes marked Yes (LAN: SL0/SL1/SL3/PM/ON; RS-232C: ST/PM/ON). In standby only a portion of commands work (e.g. POWER, GET=ERR, MAIN, RC, TEMP, COMVER, PRODCODE, ROMVER, LAMPCOUNTER).
Naming discrepancy in source: command list spells FINEGAMMAR/FINEGAMMAG/FINEGAMMAB; command details and examples use FINE_GAMMA_R/FINE_GAMMA_G/FINE_GAMMA_B. This spec uses the detail spelling.
MAIN/RC emulation: i:OK acknowledges request acceptance only (including POWER_OFF) — no confirmation of actual execution.
Lamp/filt warnings display 10 s at startup regardless of trigger source (button or command).

Provenance

source_domains:
  - files.canon-europe.com
source_urls:
  - https://files.canon-europe.com/files/webcontent/pdf/4K501ST_UC_E_YT1-1467-000.pdf
retrieved_at: 2026-05-14T21:18:58.349Z
last_checked_at: 2026-09-09T22:17:02.764Z

Verification Summary

verdict: verified
checked_at: 2026-09-09T22:17:02.764Z
matched_actions: 121
action_count: 121
confidence: medium
summary: "All 121 spec action units decompose the 66 source commands (set/query pairs plus inquiry-only); every mnemonic verified in source command list and details; transport params match. (13 unresolved item(s) noted in Known Gaps.)"

Known Gaps

- "network configuration (IP addressing method) not described; several parameter enums (DGAMMA, MEMF/MEMG/MEMS, NR, NRMPG, ASELD*) not enumerated in source; power-mode restriction tables partially unreadable in extraction"
- "valid values not enumerated in source\""
- "only WEAK shown in source example; other values not enumerated\""
- "only ON documented; OFF presumed but not stated\""
- "only MIDDLE shown in source example; other values not enumerated. Applies to current input signal and image mode\""
- "only MIDDLE shown in source example\""
- "only MIDDLE shown in source example; other values not enumerated\""
- "no event mechanism stated"
- "source contains no explicit interlock procedures or power-on"
- "DGAMMA, MEMF/MEMG/MEMS, NR, NRMPG parameter value lists not enumerated in source (examples show WEAK / MIDDLE only)"
- "ASELD1-4/ASELDX2/ASELDX4 parameter values not enumerated in source (example shows 1)"
- "input-restriction columns per command unreadable in extraction; only FREEZE/NR/NRMPG/TEMP/MAIN restriction rows partially legible"
- "chapter 8 \"Error Processing\" is an omitted picture in the source extraction"

From the AI4AV catalog (https://ai4av.net) · ODbL-1.0

Summary

protocols: - tcp - serial addressing: port: 33336 serial: baud_rate: 19200 data_bits: 8 parity: none stop_bits: 2 flow_control: none auth: type: none # inferred: no auth procedure in source

# inferred from command evidence in source traits: - powerable # POWER command present - routable # INPUT input-signal selection present - queryable # GET= reference commands present - levelable # AVOL, BRI, CONT, HUE, SAT, SHARP, GAMMA numeric settings present

Actions

# Setting commands: `CMD=value` + CR. Reference commands: `GET=CMD` + CR. # Delimiter CR (0Dh) implied on every command - not repeated per entry. # --- 6-axis color adjustment --- - id: 6axadj_set label: 6-axis Color Adjustment On/Off kind: action command: "6AXADJ={state}" params: - name: state type: enum values: [ON, OFF] - id: 6axadj_query label: 6-axis Color Adjustment Query kind: query command: "GET=6AXADJ" params: [] - id: 6axr_set label: 6-axis Adjustment Red (hue/saturation/brightness) kind: action command: "6AXR={hue},{saturation},{brightness}" params: - name: hue type: integer description: "R hue, -20 to 20" - name: saturation type: integer description: "R saturation, -20 to 20" - name: brightness type: integer description: "R brightness, -20 to 20" - id: 6axr_query label: 6-axis Adjustment Red Query kind: query command: "GET=6AXR" params: [] - id: 6axg_set label: 6-axis Adjustment Green (hue/saturation/brightness) kind: action command: "6AXG={hue},{saturation},{brightness}" params: - name: hue type: integer description: "G hue, -20 to 20" - name: saturation type: integer description: "G saturation, -20 to 20" - name: brightness type: integer description: "G brightness, -20 to 20" - id: 6axg_query label: 6-axis Adjustment Green Query kind: query command: "GET=6AXG" params: [] - id: 6axb_set label: 6-axis Adjustment Blue (hue/saturation/brightness) kind: action command: "6AXB={hue},{saturation},{brightness}" params: - name: hue type: integer description: "B hue, -20 to 20" - name: saturation type: integer description: "B saturation, -20 to 20" - name: brightness type: integer description: "B brightness, -20 to 20" - id: 6axb_query label: 6-axis Adjustment Blue Query kind: query command: "GET=6AXB" params: [] - id: 6axc_set label: 6-axis Adjustment Cyan (hue/saturation/brightness) kind: action command: "6AXC={hue},{saturation},{brightness}" params: - name: hue type: integer description: "C hue, -20 to 20" - name: saturation type: integer description: "C saturation, -20 to 20" - name: brightness type: integer description: "C brightness, -20 to 20" - id: 6axc_query label: 6-axis Adjustment Cyan Query kind: query command: "GET=6AXC" params: [] - id: 6axm_set label: 6-axis Adjustment Magenta (hue/saturation/brightness) kind: action command: "6AXM={hue},{saturation},{brightness}" params: - name: hue type: integer description: "M hue, -20 to 20" - name: saturation type: integer description: "M saturation, -20 to 20" - name: brightness type: integer description: "M brightness, -20 to 20" - id: 6axm_query label: 6-axis Adjustment Magenta Query kind: query command: "GET=6AXM" params: [] - id: 6axy_set label: 6-axis Adjustment Yellow (hue/saturation/brightness) kind: action command: "6AXY={hue},{saturation},{brightness}" params: - name: hue type: integer description: "Y hue, -20 to 20" - name: saturation type: integer description: "Y saturation, -20 to 20" - name: brightness type: integer description: "Y brightness, -20 to 20" - id: 6axy_query label: 6-axis Adjustment Yellow Query kind: query command: "GET=6AXY" params: [] # --- Ambient light --- - id: ambadj_set label: Ambient Light Correction Adjustment kind: action command: "AMBADJ={state}" params: - name: state type: enum values: [ON] - id: ambadj_query label: Ambient Light Correction Query kind: query command: "GET=AMBADJ" params: [] - id: amblevel_set label: Ambient Light Level Setting kind: action command: "AMBLEVEL={level}" params: - name: level type: enum values: [WEAK, STRONG] - id: amblevel_query label: Ambient Light Level Query kind: query command: "GET=AMBLEVEL" params: [] - id: ambtype_set label: Ambient Light Type Setting kind: action command: "AMBTYPE={type}" params: - name: type type: enum values: [TG, FL] description: "TG=Tungsten lamp, FL=Fluorescent lamp" - id: ambtype_query label: Ambient Light Type Query kind: query command: "GET=AMBTYPE" params: [] # --- Audio input terminal selection --- - id: aseld1_set label: DVI-1 Audio Input Terminal Selection kind: action command: "ASELD1={terminal}" params: - name: terminal type: string description: "Digital PC audio terminal selection ID (example value: 1). UNRESOLVED: valid values not enumerated in source" - id: aseld1_query label: DVI-1 Audio Input Terminal Query kind: query command: "GET=ASELD1" params: [] - id: aseld2_set label: DVI-2 Audio Input Terminal Selection kind: action command: "ASELD2={terminal}" params: - name: terminal type: string description: "Digital PC audio terminal selection ID (example value: 1). UNRESOLVED: valid values not enumerated in source" - id: aseld2_query label: DVI-2 Audio Input Terminal Query kind: query command: "GET=ASELD2" params: [] - id: aseld3_set label: DVI-3 Audio Input Terminal Selection kind: action command: "ASELD3={terminal}" params: - name: terminal type: string description: "Digital PC audio terminal selection ID (example value: 1). UNRESOLVED: valid values not enumerated in source" - id: aseld3_query label: DVI-3 Audio Input Terminal Query kind: query command: "GET=ASELD3" params: [] - id: aseld4_set label: DVI-4 Audio Input Terminal Selection kind: action command: "ASELD4={terminal}" params: - name: terminal type: string description: "Digital PC audio terminal selection ID (example value: 1). UNRESOLVED: valid values not enumerated in source" - id: aseld4_query label: DVI-4 Audio Input Terminal Query kind: query command: "GET=ASELD4" params: [] - id: aseldx2_set label: DVI 1x2 Audio Input Terminal Selection kind: action command: "ASELDX2={terminal}" params: - name: terminal type: string description: "Digital PC audio terminal selection ID (example value: 1). UNRESOLVED: valid values not enumerated in source" - id: aseldx2_query label: DVI 1x2 Audio Input Terminal Query kind: query command: "GET=ASELDX2" params: [] - id: aseldx4_set label: DVI 2x2 / 1x4 Audio Input Terminal Selection kind: action command: "ASELDX4={terminal}" params: - name: terminal type: string description: "Digital PC audio terminal selection ID (example value: 1). UNRESOLVED: valid values not enumerated in source" - id: aseldx4_query label: DVI 2x2 / 1x4 Audio Input Terminal Query kind: query command: "GET=ASELDX4" params: [] - id: aselh1_set label: HDMI-1 Audio Input Terminal Selection kind: action command: "ASELH1={terminal}" params: - name: terminal type: enum values: [H1] description: "H1 = HDMI1 audio" - id: aselh1_query label: HDMI-1 Audio Input Terminal Query kind: query command: "GET=ASELH1" params: [] - id: aselh2_set label: HDMI-2 Audio Input Terminal Selection kind: action command: "ASELH2={terminal}" params: - name: terminal type: enum values: [H2, OFF] description: "H2 = HDMI2 audio, OFF = turned off" - id: aselh2_query label: HDMI-2 Audio Input Terminal Query kind: query command: "GET=ASELH2" params: [] - id: aselhx2_set label: HDMIx2 Audio Input Terminal Selection kind: action command: "ASELHX2={terminal}" params: - name: terminal type: enum values: [H1, H2, "1"] description: "H1 = HDMI1 audio, H2 = HDMI2 audio, 1 = Audio in 1" - id: aselhx2_query label: HDMIx2 Audio Input Terminal Query kind: query command: "GET=ASELHX2" params: [] # --- Picture / image settings --- - id: aspect_set label: Aspect Ratio Setting kind: action command: "ASPECT={mode}" params: - name: mode type: enum values: [AUTO, TRUE] - id: aspect_query label: Aspect Ratio Query kind: query command: "GET=ASPECT" params: [] - id: avol_set label: Audio Volume Adjustment kind: action command: "AVOL={volume}" params: - name: volume type: integer description: "Audio volume, 0 to 20. Adjusting during mute cancels mute" - id: avol_query label: Audio Volume Query kind: query command: "GET=AVOL" params: [] - id: blank_set label: Screen Blank kind: action command: "BLANK={state}" params: - name: state type: enum values: [ON, OFF] description: "Executing in FREEZE status cancels FREEZE and becomes BLANK" - id: blank_query label: Screen Blank Query kind: query command: "GET=BLANK" params: [] - id: bri_set label: Brightness Setting kind: action command: "BRI={level}" params: - name: level type: integer description: "-20 to 20" - id: bri_query label: Brightness Query kind: query command: "GET=BRI" params: [] - id: color_temp_set label: Color Temperature Setting kind: action command: "COLOR_TEMP={level}" params: - name: level type: integer description: "-17 to 21" - id: color_temp_query label: Color Temperature Query kind: query command: "GET=COLOR_TEMP" params: [] - id: cont_set label: Contrast Setting kind: action command: "CONT={level}" params: - name: level type: integer description: "-20 to 20" - id: cont_query label: Contrast Query kind: query command: "GET=CONT" params: [] - id: dgamma_set label: Dynamic Gamma Setting kind: action command: "DGAMMA={mode}" params: - name: mode type: enum values: [WEAK] description: "UNRESOLVED: only WEAK shown in source example; other values not enumerated" - id: dgamma_query label: Dynamic Gamma Query kind: query command: "GET=DGAMMA" params: [] - id: fine_gamma_r_set label: Fine Gamma R Setting kind: action command: "FINE_GAMMA_R={values}" params: - name: values type: string description: "Comma-separated adjustment point values (9 points in example), each 0 to 1024. Menu enforces point1-point9 >= 128; user commands do not" - id: fine_gamma_r_query label: Fine Gamma R Query kind: query command: "GET=FINE_GAMMA_R" params: [] - id: fine_gamma_g_set label: Fine Gamma G Setting kind: action command: "FINE_GAMMA_G={values}" params: - name: values type: string description: "Comma-separated adjustment point values (9 points in example), each 0 to 1024" - id: fine_gamma_g_query label: Fine Gamma G Query kind: query command: "GET=FINE_GAMMA_G" params: [] - id: fine_gamma_b_set label: Fine Gamma B Setting kind: action command: "FINE_GAMMA_B={values}" params: - name: values type: string description: "Comma-separated adjustment point values (9 points in example), each 0 to 1024" - id: fine_gamma_b_query label: Fine Gamma B Query kind: query command: "GET=FINE_GAMMA_B" params: [] - id: fltwrn_set label: Air Filter Cleaning Warning Display kind: action command: "FLTWRN={state}" params: - name: state type: enum values: [ON, OFF] description: "ON from parameter table; OFF from usage example in source" - id: fltwrn_query label: Air Filter Cleaning Warning Query kind: query command: "GET=FLTWRN" params: [] - id: freeze_set label: Screen Freeze kind: action command: "FREEZE={state}" params: - name: state type: enum values: [ON, OFF] - id: freeze_query label: Screen Freeze Query kind: query command: "GET=FREEZE" params: [] - id: gamma_set label: Gamma Adjustment kind: action command: "GAMMA={level}" params: - name: level type: integer description: "-10 to 10" - id: gamma_query label: Gamma Adjustment Query kind: query command: "GET=GAMMA" params: [] - id: htmpinf_set label: High Temperature Caution Display Setting kind: action command: "HTMPINF={state}" params: - name: state type: enum values: [ON] description: "UNRESOLVED: only ON documented; OFF presumed but not stated" - id: htmpinf_query label: High Temperature Caution Display Query kind: query command: "GET=HTMPINF" params: [] - id: hue_set label: Hue Setting kind: action command: "HUE={level}" params: - name: level type: integer description: "-20 to 20" - id: hue_query label: Hue Query kind: query command: "GET=HUE" params: [] - id: image_set label: Image Mode Setting kind: action command: "IMAGE={mode}" params: - name: mode type: enum values: [STANDARD, PRESENTATION, PHOTO_SRGB, DCM_SIM, DYNAMIC, VIDEO, USER_1, USER_2, USER_3] description: "Changing mode reapplies the mode's unique setting-item set" - id: image_query label: Image Mode Query kind: query command: "GET=IMAGE" params: [] - id: imageflip_set label: Flip Display Setting kind: action command: "IMAGEFLIP={mode}" params: - name: mode type: enum values: [NONE, CEILING, REAR, REAR_CEILING] description: "Flipping display initializes keystone distortion settings" - id: imageflip_query label: Flip Display Query kind: query command: "GET=IMAGEFLIP" params: [] - id: input_set label: Input Signal Selection kind: action command: "INPUT={input}" params: - name: input type: enum values: [HDMI1, HDMI2, HDMI1X2, D-RGB1, D-RGB2, D-RGB3, D-RGB4, D-RGB1X2, D-RGB2X2, D-RGB1X4] - id: input_query label: Input Signal Query kind: query command: "GET=INPUT" params: [] - id: iris_set label: Iris Setting kind: action command: "IRIS={mode}" params: - name: mode type: enum values: [OPEN, CLOSE1, CLOSE2, CLOSE3] - id: iris_query label: Iris Setting Query kind: query command: "GET=IRIS" params: [] # --- Keys / panel / remote --- - id: krep_set label: Key Repeat Setting kind: action command: "KREP={state}" params: - name: state type: enum values: [OFF, ON] - id: krep_query label: Key Repeat Query kind: query command: "GET=KREP" params: [] - id: lamp_set label: Lamp Mode Setting kind: action command: "LAMP={mode}" params: - name: mode type: enum values: [FULL, ECO] - id: lamp_query label: Lamp Mode Query kind: query command: "GET=LAMP" params: [] - id: lmpwrn_set label: Lamp Replacement Warning Display Setting kind: action command: "LMPWRN={state}" params: - name: state type: enum values: [OFF, ON] - id: lmpwrn_query label: Lamp Replacement Warning Query kind: query command: "GET=LMPWRN" params: [] - id: lposld_set label: Lens Position Load kind: action command: "LPOSLD={position}" params: - name: position type: enum values: ["1", "2", "3"] description: "Cannot be set when position save has not been executed; position save itself is menu-only" - id: main_emulation label: Unit Control Panel Emulation kind: action command: "MAIN={button}" params: - name: button type: enum values: [POWER, POWER_OFF, MENU, INPUT, AUTOPC, KEYSTONE, UP, "UP+REP", DOWN, "DOWN+REP", LEFT, "LEFT+REP", RIGHT, "RIGHT+REP", OK, "*-REP"] description: "+REP = button press start; always end with *-REP (button press end). i:OK means request accepted, not executed. All params except POWER invalid in standby" # --- Memory color --- - id: memf_set label: Memory Color Adjustment Flesh kind: action command: "MEMF={level}" params: - name: level type: enum values: [MIDDLE] description: "UNRESOLVED: only MIDDLE shown in source example; other values not enumerated. Applies to current input signal and image mode" - id: memf_query label: Memory Color Adjustment Flesh Query kind: query command: "GET=MEMF" params: [] - id: memg_set label: Memory Color Adjustment Green kind: action command: "MEMG={level}" params: - name: level type: enum values: [MIDDLE] description: "UNRESOLVED: only MIDDLE shown in source example" - id: memg_query label: Memory Color Adjustment Green Query kind: query command: "GET=MEMG" params: [] - id: mems_set label: Memory Color Adjustment Sky kind: action command: "MEMS={level}" params: - name: level type: enum values: [MIDDLE] description: "UNRESOLVED: only MIDDLE shown in source example" - id: mems_query label: Memory Color Adjustment Sky Query kind: query command: "GET=MEMS" params: [] - id: mute_set label: Audio Mute kind: action command: "MUTE={state}" params: - name: state type: enum values: [ON, OFF] description: "Mute always OFF after power-on; volume adjustment cancels mute" - id: mute_query label: Audio Mute Query kind: query command: "GET=MUTE" params: [] - id: nr_set label: Random Noise Reduction Setting kind: action command: "NR={level}" params: - name: level type: enum values: [MIDDLE] description: "UNRESOLVED: only MIDDLE shown in source example; other values not enumerated" - id: nr_query label: Random Noise Reduction Query kind: query command: "GET=NR" params: [] - id: nrmpg_set label: MPEG Noise Reduction Setting kind: action command: "NRMPG={level}" params: - name: level type: enum values: [MIDDLE] description: "UNRESOLVED: only MIDDLE shown in source example; other values not enumerated" - id: nrmpg_query label: MPEG Noise Reduction Query kind: query command: "GET=NRMPG" params: [] # --- Power --- - id: power_set label: Power Supply Control kind: action command: "POWER={state}" params: - name: state type: enum values: [ON, OFF] - id: power_query label: Power Status Query kind: query command: "GET=POWER" params: [] # response: g:POWER=<OFF|OFF2ON|ON|ON2PMM|PMM|PMM2ON|ON2OFF> - see Feedbacks # --- RGB gain/offset --- - id: rgbgain_set label: RGB Gain Adjustment kind: action command: "RGBGAIN={r},{g},{b}" params: - name: r type: integer description: "R gain, -60 to 60" - name: g type: integer description: "G gain, -60 to 60" - name: b type: integer description: "B gain, -60 to 60" - id: rgbgain_query label: RGB Gain Query kind: query command: "GET=RGBGAIN" params: [] - id: rgboffset_set label: RGB Offset Adjustment kind: action command: "RGBOFFSET={r},{g},{b}" params: - name: r type: integer description: "R offset, -60 to 60" - name: g type: integer description: "G offset, -60 to 60" - name: b type: integer description: "B offset, -60 to 60" - id: rgboffset_query label: RGB Offset Query kind: query command: "GET=RGBOFFSET" params: [] - id: sat_set label: Color Saturation Setting kind: action command: "SAT={level}" params: - name: level type: integer description: "-20 to 20" - id: sat_query label: Color Saturation Query kind: query command: "GET=SAT" params: [] - id: saveimgprof_set label: User Memory Creation/Storage/Deletion kind: action command: "SAVEIMGPROF={operation}" params: - name: operation type: enum values: [USER_1, USER_2, USER_3, DEL_ALL] description: "DEL_ALL restores factory-default state" - id: saveimgprof_query label: User Memory Presence Query kind: query command: "GET=SAVEIMGPROF" params: [] # response: g:SAVEIMGPROF=<count>:<user1>,<user2>,<user3> - id: sharp_set label: Sharpness Setting kind: action command: "SHARP={level}" params: - name: level type: integer description: "-10 to 10" - id: sharp_query label: Sharpness Query kind: query command: "GET=SHARP" params: [] - id: sigmsg_set label: Input Status Display Setting kind: action command: "SIGMSG={state}" params: - name: state type: enum values: [ON] description: "UNRESOLVED: only ON documented; OFF presumed but not stated" - id: sigmsg_query label: Input Status Display Query kind: query command: "GET=SIGMSG" params: [] - id: tptn_set label: Test Pattern Setting kind: action command: "TPTN={pattern}" params: - name: pattern type: enum values: [OFF, CB1, SSH1, SSH2, SSH3, SSV1, SSV2, SSV3, RTF1, RTF2, RTF3, RTF4, RTH1, RTH2, RTH3, RTH4, SSC1, SSC2, CKR1, CKR2, MUL1, MUL2, CHR1, FCS1, BDR1, CRS1, CRS2, CRS3, DCM1] description: "OFF plus 28 test patterns (color bar, stair steps, rasters, checker, DICOM chart, etc.)" - id: tptn_query label: Test Pattern Query kind: query command: "GET=TPTN" params: [] # --- Remote control emulation --- - id: rc_emulation label: Remote Control Operation Emulation kind: action command: "RC={button}" params: - name: button type: enum values: [POWER, POWER_OFF, MENU, EXIT, INPUT, DPC, APC1, APC2, HDMI, COMP, ASPECT, AUTOPC, UP, "UP+REP", DOWN, "DOWN+REP", LEFT, "LEFT+REP", RIGHT, "RIGHT+REP", OK, FOCUS, ZOOM, SHIFT, TPTN, KEYSTONE, NUM_0, NUM_1, NUM_2, NUM_3, NUM_4, NUM_5, NUM_6, NUM_7, NUM_8, NUM_9, DZOOM_P, "DZOOM_P+REP", DZOOM_M, "DZOOM_M+REP", VOL_P, "VOL_P+REP", VOL_M, "VOL_M+REP", MUTE, FN, IMAGE, FREEZE, BLANK, GAMMA, SPLIT, ECO, "*-REP"] description: "+REP = button press start; always send *-REP at end to finish press. i:OK means request accepted, not executed" # --- Inquiry-only commands --- - id: comver_query label: User Command Version Inquiry kind: query command: "GET=COMVER" params: [] - id: err_query label: Error Information Inquiry kind: query command: "GET=ERR" params: [] - id: lampcounter_query label: Lamp Counter Inquiry kind: query command: "GET=LAMPCOUNTER" params: [] - id: prodcode_query label: Product Name Inquiry kind: query command: "GET=PRODCODE" params: [] - id: romver_query label: Firmware Version Inquiry kind: query command: "GET=ROMVER" params: [] - id: signal_info_query label: Displayed Signal Information Inquiry kind: query command: "GET=SIGNAL_INFO" params: [] - id: signalstatus_query label: Signal Detection Inquiry kind: query command: "GET=SIGNALSTATUS" params: [] - id: temp_query label: Temperature Sensor Value Inquiry kind: query command: "GET=TEMP" params: []

Feedbacks

- id: power_mode type: enum values: [OFF, OFF2ON, ON, ON2PMM, PMM, PMM2ON, ON2OFF] description: "From GET=POWER response. Transition values: OFF2ON (OFF->ON), ON2PMM (ON->lamp off), PMM2ON (lamp off->ON), ON2OFF (ON->OFF)" - id: error_state type: enum values: [NO_ERROR, ABNORMAL_TEMPERATURE, FAULTY_LAMP, FAULTY_LAMP_COVER, FAULTY_COOLING_FAN, FAULTY_POWER_SUPPLY, FAULTY_AIR_FILTER] description: "From GET=ERR. Warning LED state; NO_ERROR when LED not lit" - id: signal_status type: enum values: [NO_SIGNAL, DISPLAYING, SETTING, UNSUPPORTED, INSUFFICIENT] description: "From GET=SIGNALSTATUS for selected input. e:1011 returned during BLANK" - id: lamp_counter type: string description: "From GET=LAMPCOUNTER. Bracketed code encoding cumulative lamp-on hours, e.g. \"[GGG_____]\" = 1080-1619 H" - id: temperature_sensors type: string description: "From GET=TEMP. Format <sensor count>,<value 1>,...,<value n>; count can be 0. Example: 5,28.5,53.3,53.3,53.3,33.0" - id: command_version type: string description: "From GET=COMVER. 2-digit + 4-digit format, e.g. \"01.1234\"" - id: product_code type: string description: "From GET=PRODCODE. Returns \"4K501ST\"" - id: rom_version type: string description: "From GET=ROMVER. Example \"01.234567_12345\"" - id: signal_info type: string description: "From GET=SIGNAL_INFO. Example \"1920 x 1200 60\". Empty for USB/LAN display; e:1011 during test pattern" - id: user_memory_status type: string description: "From GET=SAVEIMGPROF. Format <count>:<user1 present>,<user2 present>,<user3 present>, e.g. 3:0,1,1" - id: command_ack type: enum values: [OK, BUSY] description: "Normal response prefix i:. BUSY during internal processing - wait and resend" - id: error_response type: string description: "Error responses e:<error ID> <info>: e:0002 INVALID_COMMAND, e:000A INVALID_PARAMETER, e:F001 SYSTEM, e:0005 NOT_POWER_SUPPLIED, e:1011 FUNCTION_NOT_AVAILABLE, e:201F INVALID_SIGNAL"

confirmation_required_for: [] interlocks: [] # UNRESOLVED: source contains no explicit interlock procedures or power-on # sequencing requirements. Note: error-processing section (chapter 8) is a # picture omitted during extraction.

Notes

Command format: <command text>=<value> + CR (0Dh), or bare <command text> + CR. Queries use GET=<command>. Max 256 characters including delimiter.

Response format: first char is type (i normal, g reference, e error) followed by :. All responses CR-terminated.

Serial: RS-232C start-stop sync half-duplex, 19200 bps, 8 data bits, 2 stop bits, no parity, no flow/error control, no break signal. 9-pin crossover cable, 3-line SD/RD/SG.

LAN: TCP port 33336; socket closes after 30 s without a command; network function must be enabled on projector first.

Timeouts: Tc (inter-character) 1 s — exceeding it or missing delimiter within 256 chars discards the partial command; Tr (command→response) 15 s — resend on timeout.

Strict request/response lock-step: next command only after response; 2nd+ simultaneous commands discarded; LAN packets with embedded multiple commands process only the first.

Commands are case-insensitive; use uppercase by convention.

Power-mode restrictions: commands executable only in modes marked Yes (LAN: SL0/SL1/SL3/PM/ON; RS-232C: ST/PM/ON). In standby only a portion of commands work (e.g. POWER, GET=ERR, MAIN, RC, TEMP, COMVER, PRODCODE, ROMVER, LAMPCOUNTER).

Naming discrepancy in source: command list spells FINEGAMMAR/FINEGAMMAG/FINEGAMMAB; command details and examples use FINE_GAMMA_R/FINE_GAMMA_G/FINE_GAMMA_B. This spec uses the detail spelling.

MAIN/RC emulation: i:OK acknowledges request acceptance only (including POWER_OFF) — no confirmation of actual execution.

Lamp/filt warnings display 10 s at startup regardless of trigger source (button or command).

source_domains: - files.canon-europe.com source_urls: - https://files.canon-europe.com/files/webcontent/pdf/4K501ST_UC_E_YT1-1467-000.pdf retrieved_at: 2026-05-14T21:18:58.349Z last_checked_at: 2026-09-09T22:17:02.764Z

Verification Summary

verdict: verified checked_at: 2026-09-09T22:17:02.764Z matched_actions: 121 action_count: 121 confidence: medium summary: "All 121 spec action units decompose the 66 source commands (set/query pairs plus inquiry-only); every mnemonic verified in source command list and details; transport params match. (13 unresolved item(s) noted in Known Gaps.)"

Known Gaps

- "network configuration (IP addressing method) not described; several parameter enums (DGAMMA, MEMF/MEMG/MEMS, NR, NRMPG, ASELD*) not enumerated in source; power-mode restriction tables partially unreadable in extraction" - "valid values not enumerated in source\"" - "only WEAK shown in source example; other values not enumerated\"" - "only ON documented; OFF presumed but not stated\"" - "only MIDDLE shown in source example; other values not enumerated. Applies to current input signal and image mode\"" - "only MIDDLE shown in source example\"" - "only MIDDLE shown in source example; other values not enumerated\"" - "no event mechanism stated" - "source contains no explicit interlock procedures or power-on" - "DGAMMA, MEMF/MEMG/MEMS, NR, NRMPG parameter value lists not enumerated in source (examples show WEAK / MIDDLE only)" - "ASELD1-4/ASELDX2/ASELDX4 parameter values not enumerated in source (example shows 1)" - "input-restriction columns per command unreadable in extraction; only FREEZE/NR/NRMPG/TEMP/MAIN restriction rows partially legible" - "chapter 8 \"Error Processing\" is an omitted picture in the source extraction"

From the AI4AV catalog (https://ai4av.net) · ODbL-1.0

Canon 4K501ST Control Spec

Summary

Transport

Traits

Actions

Feedbacks

Variables

Events

Macros

Safety

Notes

Provenance

Verification Summary

Known Gaps

Source & contribution

Canon 4K501ST Control Spec

Summary

Transport

Traits

Actions

Feedbacks

Variables

Events

Macros

Safety

Notes

Provenance

Verification Summary

Known Gaps

Source & contribution