Panasonic PT-REQ15 - Page 285

Chapter 7 Appendix — Technical information
ENGLISH - 285
2) Check the response from the projector.
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 undened value)
“NTCONTROL 1 23181e1e” (CR)
3) Generate a 32-byte hash value from the following data using MD5 algorithm.
f “xxxxxx:yyyyy:zzzzzzzz”
xxxxxx The user name for the administrator account
yyyyy The password for 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 284)
‘0’
0x30
‘0’
0x30
Control command
(ASCII string)
(CR)
0x0d
Data length
32 bytes 1 byte 1 byte Undened length 1 byte
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
Header Data section
Termination
symbol
Command
example
‘0’
0x30
‘0’
0x30
Control command
(ASCII string)
(CR)
0x0d
Data length
1 byte 1 byte Undened length 1 byte
f Example: The projector is powered on
“00001” (CR)
r Error response
String Details
Termination
symbol
Message
“ERR1” Undened 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 in default setting. This is
the specication based on the security view point to prevent unauthorized operation of this product by a malicious third party. To send
commands continuously, set [NETWORK] menu → [NETWORK CONTROL] → [COMMAND SESSION PROLONG] to [30SEC.]. For details,
refer to “Communication ow between server and client” (x page 287).