Canon 7230 Specyfikacja techniczna - Strona 7

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Canon 7230 Specyfikacja techniczna
SERIAL FUNCTIONAL SPECIFICATION

7. Functional Execution Command

7.1. Format

1. PC issues a command as below form at
"C" COMMAND [CR]
COMMAND: 2 characters (See Functional Execution Command Table)
2.
A projector decodes received data and sends a return result after being ready to
receive next command.
[ACK] [CR]: (0x06, 0x0D) When received functional execution commands.
"?" [CR]: When cannot read received data.

7.2. When the command pipelining is needed

When some functions need command pipelining, the performance is the same as the
remote control's performance.
1. System: issue any commands every 100ms after receiving response
2.
When receiving any relevant command, the function is executed continuously for
120ms.
3. When receiving the same command continuously, with 120ms, the function is executed
for 120ms form the moment.
4. The next command is not issued after 120ms, and the execution is stopped.
5. If the projector receives other incoming commands within 120ms, the execution is
stopped.

7.3. Transfer Example

Change to Video mode with Basic Command
PC → Projector
Projector → PC

7.4. Operation Requirements

When the projector's status in this below, functional execution commands are limited.
Status Read Commands are available even in this table status.
Projector Status
Standby Mode
Processing Countdown
Processing Cooling Down
Processing Cooling Down due to abnormal
temperature
Abnormal Temperature Status
Processing Mode Change
Processing Power Save/Cooling Down
Processing Power Save
Note) When the status is above, even if the projector receives other command
in the above status, the projector returns [ACK] [CR].
Item
Functional Execution Command
Command
"C"
"0" "7" CR
(A few ms--1s)
Available Functional Execution Commands
C00: Power ON
C00: Power ON (Terminate Countdown)
N/A
N/A
N/A
N/A
N/A
C00: Power ON, C01: Power OFF
ACK CR
Processing
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