Chapter 7
Appendix — Technical information
190 - ENGLISH
Command transmission method
Transmit using the following command formats.
r
Transmitted data
Header
Data section
Termination
symbol
Command
example
‘0’
0x30
‘0’
0x30
Control command
(ASCII string)
(CR)
0x0d
Data length
1 byte
1 byte
Undefined length
1 byte
f
Example: Transmission of power supply status acquisition command
“00QPW” (CR)
r
Received data
Header
Data section
Termination
symbol
Command
example
‘0’
0x30
‘0’
0x30
Control command
(ASCII string)
(CR)
0x0d
Data length
1 byte
1 byte
Undefined length
1 byte
f
Example: The power of the projector is in standby status
“00000” (CR)
r
Error response
String
Details
Termination
symbol
Message
“ERR1”
Undefined control command
(CR)
0x0d
“ERR2”
Out of parameter range
“ERR3”
Busy state or no-acceptable period
“ERR4”
Timeout or no-acceptable period
“ERR5”
Wrong data length
“ERRA”
Password mismatch
Data length
4 bytes
―
1 byte
