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 automatically disconnects from the network immediately after sending the command. Such specifications are made from the
viewpoint of security, such as prevention of illegal operation of the projector by a malicious third party. To send commands continuously,
make a request for network connection every time and send it. For details, see “Communication flow between the server and the client”
(
x
page 154).
When connecting in non-protected mode
Connection method
This is the connection method when [NETWORK] menu → [NETWORK SECURITY] → [COMMAND PROTECT]
is set to [DISABLE].
1) Obtain the IP address and port number (Initial set value = 1 024) of the projector and make a request
for 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
Obtain from the [NETWORK] menu → [NETWORK STATUS].
Port No.
Obtain from the [NETWORK] menu → [NETWORK CONTROL] → [COMMAND PORT].
2) Check the response from the projector.
Data section
Blank
Mode
Termination symbol
Command
example
“NTCONTROL”
(ASCII string)
‘ ’
0x20
‘0’
0x30
(CR)
0x0d
Data length
9 bytes
1 byte
1 byte
1 byte
f
Mode : 0 = Non-protect mode
f
Example: Response during non-protect mode
“NTCONTROL 0” (CR)
Command data format
It is the data format used for sending and receiving commands.
ENGLISH
-
153
Chapter 7 Appendix - Technical information
