Canon SX 50 - Manual (Page 9)

Projector User Commands
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Revision History / Date Changes Revised by Approved by
Communication System
Item Specifications
Communication system RS-232-C Start-stop synchronization Semi-duplex communication
Transmission speed 19.2 Kbps
Character length 8 bits/character
Stop bit 2 bits
Parity None
Transmission format Variable-length record with terminal as delimiter
Maximum transmission
length
Maximum of 256 characters (bytes) including delimiters.
Delimiters are one of CR, LF, CR+LF, Null (0) (delimiters are identified automatically).
Delimiters
Response delimiters are identical to command delimiters.
ASCII code (General-purpose characters: 20h to 7Fh), Tab (09h)
(Codes other than those above and delimiters are considered “other separator codes”)
Uppercase and lowercase of alphabetic characters are considered the same character. Transmission codes
Double-byte characters and single-byte characters are not distinguished. All are considered
single-byte characters.
Communication procedure No procedure
Flow control
None
Error control None
Break signal Not supported
Tc Character: 10ms * For the SX50
5s (Timeout between CR and LF is
10ms.) * For the SX6,
SX60 or X600
Time out
Tr Command/response interval: 10s
Control Mode
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
・ The available user commands are limited.
・ Except for RC and MAIN, all user commands are
available in this mode.
・ None of the remote control and main unit panel
buttons except for POWER can be used.
・ Control is switched to this mode by the REMOTE
command.
PC
LOCAL MODE
REMOTE command
REMOTE MODE
LOCAL command