Canon HDMI SX80 Ergänzendes Handbuch
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Canon
SX80
Summary of Remote Control Commands (User Commands)
1. Connection
Use the cable to connect the projector (service port) to the computer (RS-232C serial port).
The computer and projector should be connected in a direct, 1:1 connection.
If the number of pins on the connectors or the formats do not match, an adapter is required.
COM
Port
Computer
Dedicated cable
2. Communication Format
Item
Specifications
RS-232-C start-stop synchronization, semi-duplex communication
Communication Method
19200 bps
Transmission Speed
8 bits
Character Length
2 bits
Stop Bit
None
Parity
None
Flow Control
Item
Specifications
Variable-length (up to 256 bytes including delimiter)
Number of Bytes
CR, LF, CR+LF, or null (00h)
Delimiters
In messages, CR is indicated as <CR>, LF as <LF>, CR+LF as <CR>+<LF>, and null as <00>.
ASCII code (typical characters: 20h to 7Fh)
Message Codes
Case-insensitive.
<CR> is 0Dh, <LF> is 0Ah, <CR>+<LF> is 0Dh0Ah, and <00> is 00h.
Protocol
No protocol
None
Flow Control
None
Error Control
Not supported
Break Signal
Between characters
<1 byte>
Period between command and response: 10 seconds
Timeout
Computer
Within 10 seconds
The next command must not be sent without waiting for the response
If the next command is sent, an error will occur
Service
Port
Canon
Projector
: 5 seconds
(However, timeout between CR and LF is 10 ms)
<1 byte>
Within 5 seconds
Projector
Command
Response
Item
Specifications
Connection Method
Computer: Directly connected to the projector (1:1)
Signal Lines to Connec
Three-line connection: SD, RD, and SG
Cable to Connect
9-pin RS-232C cable (cross)
Send Data SD
SD Send Data
Receive Data RD
RD Receive Data
Signal Ground SG
SG Signal Ground
* In the SX80, only the three signal lines of SD, RD, SG are used