Panasonic DLP PT-FRZ50, Руководство по эксплуатации

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Chapter 7 Appendix — Technical information
ENGLISH - 171
Data section Blank Mode Blank Random number section
Termination
symbol
Command
example
“NTCONTROL”
(ASCII string)
‘ ’
0x20
‘1’
0x31
‘ ’
0x20
“zzzzzzzz”
(ASCII code hex number)
(CR)
0x0d
Data length 9 bytes 1 byte 1 byte 1 byte 8 bytes 1 byte
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
User name of the administrator account
yyyyy Password of the administrator account
zzzzzzzz
8-byte random number obtained in Step
2)
Command transmission method
Transmit using the following command formats.
r
Transmitted data
Header Data section
Termination
symbol
Command
example
Hash value
“Connecting” (
x
page 170)
‘0’
0x30
‘0’
0x30
Control command
(ASCII string)
(CR)
0x0d
Data length 32 bytes 1 byte 1 byte Undefined length 1 byte
f
Example: Transmission of power supply status acquisition command (hash value is calculated from the
administrator account user name and password, and the acquired random number)
“dbdd2dabd3d4d68c5dd970ec0c29fa6400QPW” (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 projector is powered on
“00001” (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
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 172).