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4. Execution procedure of RS-232C commands via LAN
• When you use the LAN function, set the STANDBY MODE to STANDARD or LAN.
• When you execute RS-232C commands via LAN, check that the CONTROL SYSTEM in the NETWORK menu is
set to STANDARD.
• You can change the certification password using the NETWORK PASSWORD in the NETWORK menu. The default
password is “admin.”
• You can skip the certication process by setting the NETWORK CERTIFICATION in the NETWORK menu to OFF.
When you skip the certification process, Steps 2 to 4 described below can be skipped and you can send RS-232C
commands without adding a certification data.
Example:
Sending the PON command (00!) while the NETWORK CERTIFICATION is set to OFF
0
0
!
For the procedure to set the menu, refer to the User Manual supplied with the projector.
To execute the RS-232C command via LAN while the NETWORK CERTIFICATION is set to ON, a 32-byte connection
certification data must be added before the RS-232C command.
To create a 32-byte certification data, following information and procedure are required.
• Random character string for creating the certication data that is acquired from the projector (8 characters)
• Network password of the projector (1 to 32 characters)
• MD5 hash calculation
• Based on the above, the execution procedures to connect to the projector and send the RS-232C commands
while the NETWORK CERTIFICATION is set to ON are described below.
1. Connect to Port 63007 of the projector from the PC as a TCP/IP client.
2. After completing the connection, send the acquisition request for the certification data (“
$
A
K
”) (ASCII
code: 24 41 4B 0D) from the PC to the projector.
3. Acquire “
$
A
K
*
*
*
*
*
*
*
*
” on the PC as the response of the request sent in Step 2. (********: Random character
string for creating the certification data)
4. Create the certification data on the PC.
• Create the key of the certication data by linking the data acquired in Step 3 with the network charac-
ter string.
For example, when the random character string is 12345678 and the password is ABCD, the key of the
certification data is 12345678ABCD (character string in ASCII code).
• Run MD5 hash on the key of the certication data.
• Create the certication data by converting the hash-calculated 16-byte data into the ASCII code char-
acter string.
Example:
Calculation result: [4f][3c][5d][a1][7b][4f][b5][ed][2c][99][4e][bb][f6][57][67][54] (hexadecimal numeral)
Certification data: 4f 3c 5d a1 7b 4f b5 ed 2c 99 4e bb f6 57 67 54 (character string in ASCII code)
5. Send the RS-232C command with the certification data from the PC to the projector.
Example:
To send the PON command (00! ) using the certification data created in Step 4:
4
f
3
c
5
d
a
1
7
b
4
f
b
5
e
d
2
c
9
9
4
e
b
b
f
6
5
7
6
7
5
4
0
0
!
6. Receive the response from the projector on the PC.
Response data has the following patterns.
Normal:
0
0
!
(Parameter is added depending on the command.)
Error in the certification data:
P
R
V
=
E
R
R
A
Command error:
0
0
!
:
N
PC Projector
1. Connection
2. Acquisition request of the certification data
3. Receiving of the certification data
4. Creation of the certification data
5. Sending of the RS-232C command
6. Receiving of the response data