Hitachi Cp-X615 Projector Users Manual

							
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3. Management with Web browser software
3.6 Command Control via the Network (continued)
When the authentication setting is enabled, the following settings are required.  
(25)
7) Click [Security Settings] on the main menu. 
8) Click [Network Control] and enter the desired authentication password.
* See NOTE.
9) Click [Apply] button to save the settings.
• The Authentication Password will be the same for Network Control 
Port1 (Port: 23), Network Control Port2 (Port: 9715), and Image Transfer 
Port (Port: 9716).
• The new configuration settings are activated after restarting the network 
connection. When the configuration settings are changed, you must restart 
the network connection. You can restart the network connection by clicking 
[Network Restart] on the main menu.
NOTE 
						

							
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3. Management with Web browser software
3.6 Command Control via the Network (continued)
Command Format
Command formats differ among the different communication ports.
●   TCP #23
 
You can use the RS-232C commands without any changes. The reply data 
format is the same as the RS-232C commands. However, the following reply 
will be sent back in the event of authentication failure when authentication is 
enabled.
HeaderData lengthRS-232C commandCheck sumConnection ID
0x020x0D 3 bytes  byte byte
ReplyError code
0x1F0x040x00

Header  → 0x02, Fixed
Data length  → RS-232C commands byte length (0x0D, Fixed)
RS-232C commands  →   RS-232C commands that start with 0xBE 0xEF 
 
(13 bytes)
Check Sum  →   This is the value to make zero on the addition of the 
lower 8 bits from the header to the checksum.
Connection ID  →   Random value from 0 to 255 (This value is attached 
to the reply data)
● 
  TCP #9715
Send Data format
The following formatting is added to the header (0x02), Data length (0x0D), 
Checksum (1byte) and Connection ID (1 byte) of the RS-232C commands. 
						

							
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Reply Data format
The connection ID (the data is same as the connection ID data on the sending 
data format) is attached to the RS-232C commands reply data.

ReplyConnection ID
0x06 byte

ReplyConnection ID
0x15 byte

ReplyError codeConnection ID
0x1C  bytes  byte



ReplyDataConnection ID
0x1D bytes  byte
ReplyStatus codeConnection ID
0x1F bytes  byte
3. Management with Web browser software
3.6 Command Control via the Network (continued)
ReplyAuthentication Error codeConnection ID
0x1F0x040x00 byte 
						

							
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3. Management with Web browser software
3.6 Command Control via the Network (continued)
Automatic Connection Break
The TCP connection will be automatically disconnected after there is no 
communication for 30 seconds after being established.
The projector does not accept commands without authentication success 
when authentication is enabled. The projector uses a challenge response type 
authentication with an MD5 (Message Digest 5) algorithm.
When the projector is using a LAN, a random 8 bytes will be returned if 
authentication is enabled. Bind this received 8 bytes and the Authentication 
Password and digest this data with the MD5 algorithm and add this in front of the 
commands to send.
Following is a sample if the Authentication Password is set to “password” and the 
random 8 bytes are “a572f60c”.
Authentication
1) Select the projector.
2) Receive the random 8 bytes “a572f60c” from the projector.
3)  Bind the random 8 bytes “a572f60c” and the Authentication Password 
“password” and it becomes “a572f60cpassword”.
4)   Digest this bind “a572f60cpassword” with MD5 algorithm.
 
It will be “e3d97429adffa11bce1f7275813d4bde”.
5)    Add this “e3d97429adffa11bce1f7275813d4bde” in front of the commands 
and send the data. 
Send “e3d97429adffa11bce1f7275813d4bde”+command.
6)   When the sending data is correct, the command will be performed and the 
reply data will be returned. Otherwise, an authentication error will be returned.
• As for the transmission of the second or subsequent commands, the 
authentication data can be omitted when the same connection.
NOTE