Panasonic PT-RW620 Operating Instructions Manual page 190

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