1.1. These specifications define projector control commands for PLC-XL50.
1.2. The projector control commands are used to control a projector through RS-232C from a computer.
2. Serial Interface Specifications
2.1. Transfer Specifications
Item Specifications
Synchronous system Asynchronous
Transmission Speed 9600 / 19200
Data Length 8 bit
Parity N/A
Stop Bit 1
Flow Control N/A
1) Transmission speed: initial setting value is 19200.
2) Transmission speed can be changed in service mode.
2.2. Connection
Dedicated serial cable must be used for connection to a computer and a projector.
PC Projector
COM 1 Control Port
(D-Sub 9 Pin)(Mini 8 Pin)
4/23
PLC-XL50 Basic Serial Command Specifications
3. Notes for Communication
3.1. The projector command is defined as one command/one line that starts with “C” and ends with
carriage return (0x0D).
3.2. There are two types of Commands: Functional Execution Commands and Status Read Commands.
Example of Functional Execution Command: “C05” [CR]
Example of Status Read Command: “CR0” [CR]
3.3. When it takes more than one second to receive one command, it does not operate.
It clears the information of buffer when the projector receives LF (0x0A) or EOF (0x1A) and takes
more than one second to receive one command.
3.4. For Command pipelining, wait for the interval of 100ms after receiving a Command.
More than 100ms
Command
PC → Projector “C” “0” “7” CRNext Command
Projector → PCACK CR
Response (A few ms 〜 5s)
3.4.1. When a command is issued before receiving a response, the function is not executed
properly.
3.4.2. Except for when there is no Response for more than 5 seconds.
3.5. It takes about 5 seconds for internal initialization after plugging in AC power. During this time, it
cannot process commands. Do not issue any command.
3.6. The number of character of response to Status Read Commands depends on commands.
Please see [7. Status Read Commands].
3.7. Characters for commands must be Capital (A - Z).
5/23
PLC-XL50 Basic Serial Command Specifications
4. Functional Execution Command Table
Command
C00 POWER ON C20 BRIGHTNESS +
POWER OFF
C01
C02 POWER OFF C22 ―――
C03 ―――C23 ―――
C04 ―――C24 ―――
C05
C06 Computer 2 C26 ―――
C07 Video C27
C08 ―――C28 ON START Setting
C09 VOLUME + C29 ON START Cancel
C0A VOLUME - C2A Power Management Ready
C0B AUDIO MUTE ON C2B Power Management OFF
C0C AUDIO MUTE OFF C2C ―――
C0D VIDEO MUTE ON C2D ―――
C0E VIDEO MUTE OFF C2E Power Management Shut down
C0F
C10
C11 Image Standard C31 D.ZOOM -
C12 Image Real C32 Video Auto
C13 Image Cinema C33 Video Video
C14 Image 1 C34 Video S-Video
C15 Image 2 C35 Video Component
C16 Image 3 C36 ―――
C17 Image 4 C37 ―――
C18 Blackboard C38 ―――
C19 Dynamic C39 Image Color board
C1A ―――C3A POINTER RIGHT
C1B ―――C3B POINTER LEFT
C1C MENU ON C3C POINTER UP
C1D MENU OFF C3D POINTER DOWN
C1E DISPLAY CLEAR C3E ―――
C1F ―――C3F ENTER
(Quick Power OFF)
Computer 1 (MC/W/N)
Regular image(4:3)
Wide image(16:9)
Item Command
Item
C21 BRIGHTNESS -
C25 Computer 2 RGB
IMAGE (Toggle)
C2F ―――
C30 D.ZOOM +
――― means no function.
6/23
PLC-XL50 Basic Serial Command Specifications
Command
C43 FREEZE ON C83 ―――
C44 FREEZE OFF C84 ―――
C49 ―――C89 Auto PC ADJ.
C4A ―――C8A PRESENTATION TIMER
C4E ―――C8E KEYSTONE ↑
C4F ―――C8F KEYSTONE ↓