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User Command Specifications 2. Communication Specifications
4 2. Communication Specifications
Tc ：10ms * For the SX50
：5S (Timeout between CR and LF is 10ms.)* For the SX6, SX60 or X600
Tr Command/response interval:10S
Send data SD SD Send data
Receive data RD RD Receive data
Signal ground SG SG Signal ground
※ In the projector, none of the signal lines except for the three lines of SD, RD and SG are used!
※ If necessary, loop back its own signals at the PC side.
The projector has two control modes, the local mode and remote mode.
Most user commands are used in REMOTE mode.
The two modes are set by the REMOTE and LOCAL commands.
・Initial mode of projector
・
Except for RC and MAIN, all user commands are available in this mode.
・The available user commands are limited.
・
・
If AC power is supplied to the projector, communication is possible regardless of whether the power is on or off.
None of the remote control and main unit panel buttons except for
POWER can be used.
Flow control
Double-byte characters and single-byte characters are not distinguished. All are considered
sin
g
le-b
y
te characters.
REMOTE command
LOCAL command
(Codes other than those above and delimiters are considered “other separator codes”)
Uppercase and lowercase of alphabetic characters are considered the same character.
Character
interval
Transmission speed
Character length
Stop bit
Parity
Transmission format
Maximum transmission
len
g
th
Delimiters
Maximum of 256 characters (bytes) including delimiters
Delimiters are one of CR, LF, CR+LF, Null (0) (Delimiters are identified automatically.)
Response delimiters are identical to command delimiters.
ASCII code (General-purpose characters: 20h to 7Fh), Tab (09h)
2. Communication Specifications
Item
Communication s
y
ste
m
Communication procedure
Transmission codes
Specifications
RS-232-C Start-sto
p
s
y
nchronization Semi-du
p
lex communicatio
n
19.2Ｋｂｐｓ
8 bits/character
Communicatio
n
system
Projecto
r
Commands
PC
2 bits
None
Variable-length record with terminal as delimiter
No procedure
None
Connection
Specifications
Specification
s
PC: Connected on a "1:1"
basis with the pro
j
ecto
r
3-line connection of SD,
RD, and SG
Connection
s
y
stem
Connection
signal line
Item
The connection diagram is
here.
Connection
cable
Dedicated cable
Control
Mode
Communicatio
n
system
Response
Time out
Error control
Break signal
None
Control is switched to this mode by the REMOTE command.
Communication between the PC and projector is performed by the projector responding by sending a response to the
command sent from the PC.
Not supported
LOCAL mode
REMOTE mode
PC
プロジェクタ
専用ｹｰﾌﾞﾙ
COM
PORT
SERVICE
PORT
ＰＣ － プロジェクタ 接続形態
Canon
PC - Projector connection status
Dedicated cable
Projector
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