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Command transmission method
Transmit using the following command formats.
r Transmitted data
Hash value
Command
"Connecting" (x page 300)
example
32 bytes
Data length
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
0x30
example
1 byte
Data length
f Example: The projector is powered on
"00001" (CR)
r Error response
String
"ERR1"
"ERR2"
"ERR3"
Message
"ERR4"
"ERR5"
"ERRA"
4 bytes
Data length
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 303).
When connecting in non-protect mode
Connecting
Following is the connection method when the [NETWORK] menu → [NETWORK SECURITY] → [COMMAND
PROTECT] is set to [DISABLE].
1)
Obtain the IP address and port number (Initial set value = 1024) of the projector and request a
connection to the projector.
f You can obtain both the IP address and the port number from the menu screen of the projector.
IP address
Port number
2)
Check the response from the projector.
Chapter 7 Appendix — Technical information
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
Obtain from the [NETWORK] menu → [NETWORK STATUS].
Obtain from the [NETWORK] menu → [NETWORK CONTROL] → [COMMAND PORT].
'0'
Control command
0x30
1 byte
Undefined length
'0'
Control command
0x30
1 byte
Undefined length
Details
―
Termination
Data section
(ASCII string)
Termination
Data section
(ASCII string)
Termination
ENGLISH - 301
symbol
(CR)
0x0d
1 byte
symbol
(CR)
0x0d
1 byte
symbol
(CR)
0x0d
1 byte
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