Panasonic PT-REZ12 Operating Instructions Manual page 281

Data section
Command "NTCONTROL"
example (ASCII string)
Data length
f Mode: 1 = Protect mode
f Example: Response during protect mode (random number section is undefined value)
"NTCONTROL 1 23181e1e" (CR)
3) Generate a 32-byte hash value from the following data using MD5 algorithm.
f "xxxxxx:yyyyy:zzzzzzzz"
xxxxxx
yyyyy
zzzzzzzz
Command transmission method
Transmit using the following command formats.
r Transmitted data
Command
Hash value
example "Connecting" (x page 280)
Data length 32 bytes
f Example: Transmission of power supply status acquisition command (hash value is calculated from the user
name and password of the administrator account, and acquired random number)
"dbdd2dabd3d4d68c5dd970ec0c29fa6400QPW" (CR)
r Received data
Command
example 0x30
Data length 1 byte
f Example: The projector is powered on
"00001" (CR)
r Error response
String
"ERR1"
"ERR2"
"ERR3"
Message
"ERR4"
"ERR5"
"ERRA"
Data length 4 bytes
Note
f The projector will automatically disconnect the connection with the network right after sending the command. This is the specification based
on the security view point to prevent unauthorized operation of this product by a malicious third party. To send commands continuously,
execute the network connection request every time the command is to be sent. For details, refer to "Communication flow between server
and client" (x page 283).
Chapter 7 Appendix — Technical information
Blank
' '
0x20
9 bytes 1 byte
The user name for the administrator account
The password for the administrator account
8-byte random number obtained in Step 2)
Header
'0'
0x30
1 byte
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
Mode Blank Random number section
'1' ' '
0x31 0x20 (ASCII code hex number)
1 byte 1 byte
'0' Control command
0x30
1 byte
'0' Control command
0x30
1 byte
Details
―
"zzzzzzzz"
8 bytes
Data section
(ASCII string)
Undefined length
Data section
(ASCII string)
Undefined length
ENGLISH - 281
Termination
symbol
(CR)
0x0d
1 byte
Termination
symbol
(CR)
0x0d
1 byte
Termination
symbol
(CR)
0x0d
1 byte
Termination
symbol
(CR)
0x0d
1 byte