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INF-14
SECTION 1 SERVICE INFORMATION
4. 1. 5. Basic format
Transmission from the computer starts with STX, then the ID, command, parameter, and ETX are sent in this order.
Add parameters according to the details of control.
1. Basic control command (without parameter)
Start
(STX)
ID
Separator
(semicolon)
Command
End
(ETX)
1 byte
4 byte
1 byte
3 byte
1 byte
2. Basic control command (with parameters)
Start
(STX)
ID
Separator
(semicolon)
Command
Separator
(colon)
Parameter
End
(ETX)
1 byte
4 byte
1 byte
3 byte
1 byte
Undefined length
1 byte
3. Basic control command (with sub command)
Start
(STX)
ID
Separator
(semicolon)
Command
Separator
(colon)
Parameter
Operation
1 byte
4 byte
1 byte
3 byte
1 byte
Undefined length
1 byte
Sign
Parameter
End
(ETX)
1 byte
5 byte
1 byte
4. Operation
Specifies the method of processing the value specified by parameters.
Code
Description
=
Sets the value specified by the parameter
_(underbar)
Adds the value specified by the parameter to the current value.
5. Sign
Specifies the method of processing the value specified by parameters.
Code
Description
+
The value specified by the parameter is a positive value or 0 (zero).
–
The value specified by the parameter is a negative value.
6. Parameters
Specify the setting or adjustment value by right justification (0 is not suppressed).
For example, when the setting value is "1", set it as "00001".
7. ID of the basic control command
This projector will respond to the computer only if the sent ID coincides with the projector ID.
8. Response (Callback) of the basic control command
In the period when the command can be accepted.
Differs according to each command.
In the period when commands cannot be accepted.
Hexadecimal
02h
45h
52h
34h
30h
31h
03h
Character
E
R
4
0
1
In case of the parameter error or REMOTE2 effective.
Hexadecimal
02h
45h
52h
34h
30h
32h
03h
Character
E
R
4
0
2
9. Attention
- If a command is transmitted after the lamp starts illuminating, there may be a delay in response or the command may not be
executed. Try sending or receiving any command after 60 seconds.
- When transmitting multiple commands, be sure to wait until 0.5 seconds has elapsed after receiving the response from the
projector before sending the next command.
- It might take time by the time the response returns because the command is processed in the projector.
Set the time-out to 10 seconds or longer.
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