Hitachi Cp D31n Technical Manual

							11
RS-232C Communication (continued)
Communicaion settings
1. Protocol
19200bps,8N1
2. Command format  ("h" shows hexadecimal)
Byte Number01 2 3456789101112
Command
ActionHeader Data
Header
code
Packet
Data
sizeCRC 
flagAction TypeSetting 
code
LH LHLHLHLHLH
Change setting to 
desired value [(cL)(cH)].
BEh EFh 03h 06h 00h(aL) (aH) 01h 00h (bL) (bH) (cL) (cH)
Read projector 
internal setup value [(bL)
(bH)].(aL) (aH) 02h 00h (bL) (bH) 00h 00h
 
Increment setup value 
[(bL)(bH)] by 1.(aL) (aH) 04h 00h (bL) (bH) 00h 00h
 
Decrement setup value 
[(bL)(bH)] by 1.(aL) (aH) 05h 00h (bL) (bH) 00h 00h
 Run a 
command [(bL)(bH)].(aL) (aH) 06h 00h (bL) (bH) 00h 00h
[Header code] [Packet] [Data size] 
Set [BEh, EFh, 03h, 06h, 00h] to byte number 0
 ~ 4.
[CRC flag] 
For byte number 5, 6, refer to RS-232C Communication / Network command 
table
 (19).
[Action] 
Set functional code to byte number 7, 8. 
 = [01h, 00h],  = [02h, 00h],  =
[04h, 00h] 
 = [05h, 00h],  = [06h, 00h] 
Refer to the Communication command table 
(above).
[Type] [Setting code] 
For byte number 9™12, refer to RS-232C Communication / Network command 
table
 (19). 
						

							12
RS-232C Communication (continued)
NOTE • Operation cannot be guaranteed when the projector receives an 
undefined command or data.
• Provide an interval of at least 40ms between the response code and any 
other code.
• The projector outputs test data when the power supply is switched ON, and 
when the lamp is lit. Ignore this data.
• Commands are not accepted during warm-up.
3. Response code / Error code ("h" shows hexadecimal)
(1)  ACK reply : 06h 
When the projector receives the Set, Increment, Decrement or Execute 
command correctly, the projector changes the setting data for the specified 
item by [Type], and it returns the code.
(2)  NAK reply : 15h 
When the projector cannot understand the received command, the projector 
returns the error code. 
In such a case, check the sending code and send the same command again.
(3)  Error reply : 1Ch + 0000h 
When the projector cannot execute the received command for any reasons, 
the projector returns the error code.  
In such a case, check the sending code and the setting status of the projector.
(4)  Data reply : 1Dh + xxxxh 
When the projector receives the GET command correctly, the projector returns 
the responce code and 2 bytes of data. 
						

							13
Command Control via the Network
When the projector connects network, the projector can be controlled with RS-
232C commands from the computer with web browser. 
For details of RS-232C commands, refer to RS-232C Communication / Network 
command table 
(19).
Connection
1. Turn off the projector and the computer.
2. Connect the projector's LAN port and the computer's LAN port with a LAN 
cable. Use the cable that fulfi lls the specifi cation shown in fi gure (Use CAT-5 
or greater LAN Cable when LAN ports are used )
3. Turn the computer on, and after the computer has started up turn the 
projector on.
Command Control via the Network
LANLANLAN cable (CAT-5 or greater) 
						

							14
Communicaion Port
The following two ports are assigned for the command control.
TCP #23
TCP #9715
Configure the following items form a web browser when command control is used.
Port Settings
Network Control 
Port1 (Port: 23)Port openClick the [Enable] check box to open [Network 
Control Port1 (Port: 23)] to use TCP #23.
Default setting is “Enable”.
AuthenticationClick the [Enable] check box for the 
[Authentication] setting when authentication 
is required.
Default setting is “Disable”.
Network Control 
Port2 (Port: 9715)Port openClick the [Enable] check box to open [Network 
Control Port2 (Port: 9715)] to use TCP 
#9715.
Default setting is “Enable”.
AuthenticationClick the [Enable] check box for the 
[Authentication] setting when authentication 
is required.
Default setting is “Enable”.
Command Control via the Network
When the authentication setting is enabled, the following settings are required.
Security Settings
Network ControlAuthentication 
PasswordEnter the desired authentication password. 
This setting will be the same for [Network 
Control Port1 (Port: 23)] and [Network 
Control Port2 (Port: 9715)].
Default setting is blank. Re-enter 
Authentication 
Password 
						

							15
Command Control via the Network (continued)
Command control settings
[TCP #23]
1. Command format
Same as RS-232C communication, refer to RS-232C Communicaton command format.
2. Response code / Error code ("h" shows hexadecimal)
Four of the response / error code used for TCP#23 are the same as RS-232C 
Communication (1)~(4). One authentication error reply (5) is added.
(1)  ACK reply : 06h 
Refer to RS-232C communication
 (12).
(2)  NAK reoly : 15h 
Refer to RS-232C communication
 (12).
(3)  Error reply : 1Ch + 0000h 
Refer to RS-232C communication
 (12).
(4)  Data reply : 1Dh + xxxxh 
Refer to RS-232C communication
 (12).
(5)  Authentication error reply : 1Fh + 0400h 
When authentication error occurred, the projector returns the error code.
[TCP #9715]
1. Command format
The commands some datum are added to the head and the end of the ones of 
TCP#9715 are used.
Header Data length RS-232C command Check sum Connection ID
0×02 0×0D 13 bytes 1 byte 1 byte
[Header] 
02, Fixed
[Data Length] 
RS-232C commands byte length (0×0D, Fixed)
[RS-232C commands] 
Refer to RS-232C Communication command format 
(11).
[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).
NOTE • Operation cannot be guaranteed when the projector receives an 
undefined command or data.
• Provide an interval of at least 40ms between the response code and any 
other code.
• Commands are not accepted during warm-up. 
						

							16
2. Response code / Error code ("h" shows hexadecimal)
The connection ID is attached for the TCP#23's response / error codes are 
used. The connection ID is same as the sending command format.
(1) ACK reply : 06h + ××h                   (××h : connection ID)
(2) NAK reoly : 15h + ××h
(3) Error reply : 1Ch + 0000h + ××h
(4) Data reply : 1Dh + xxxxh + ××h
(5) Authentication error reply : 1Fh + 0400h + ××h
(6)  Projector busy reply: 1Fh + ××××h + ××h 
When the projector is too busy to receives the command ,the projector 
returens the error code. 
In such a case, check the sending code and send the same command again.
Automatic Connection Break
The TCP connection will be automatically disconnected after there is no 
communication for 30 seconds after being established.
Authentication
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”.
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.
NOTE • As for the transmission of the second or subsequent commands, 
the authentication data can be omitted when the same connection.
Command Control via the Network (continued) 
						

							17
This projector is equipped with NETWORK BRIDGE function.
When the projector connects to the computer by LAN communicaton, an external 
device that is connected with this projector by RS-232C communication can be 
controlled from the computer as a network terminal.
For details, see the 3.7 Controlling the external device via the projector(using 
the NETWORK BRIDGE function) - Network Guide.
Connection
1. Connect the computer's LAN port and the projector's LAN port with a LAN 
cable.
2.

Connect the projector's CONTROL port and the RS-232C port of the
devices that you want to control with a RS-232C cable.
3. Turn the computer on, and after the computer has started up turn the projector 
on.
4. Set the COMMUNICATION TYPE to NETWORK BRIDGE. (OPTION menu - 
SERVICE - COMMUNICATION in the User's Manual - Operating Guide)
Network Bridge Communication 
Network Bridge  Communication
LAN
CONTROL 
LAN
RS-232C 
						

							18
Communication settings 
For communication setting, use the OPTION - SERVICE - COMMUNICATION 
menu. (
OPTION menu - SERVICE - COMMUNICATION in the User's Manual 
- Operating Guide
)
Item Condition
BAUD RATE 4800bps / 9600bps / 19200bps / 38400bps
Data length 8 bit (fixed)
PARITY NONE/ODD/EVEN
Start bit 1 bit (fixed)
Stop bit 1 bit (fixed)
Transmission method HALF-DUPLEX/FULL-DUPLEX
NOTE • For connecting the projector to your devices, please read the 
manual for each devices, and connect them correctly with suitable cables. 
• Turn off (the power of ) both the projector and other devices and unplug , 
beore connecting them.
• For details of Transmission method, refer to 3.8.4 Transmission method-
Network Guide.
Network Bridge Communication  
						

							19
Names Operation Type HeaderCommand Data
CRC Action Type Setting Code
Power Set OFF BE EF 03 06 00 2A D3 01 00 00 60 00 00
ON BE EF 03 06 00 BA D2 01 00 00 60 01 00
Get BE EF 03 06 00 19 D3 02 00 00 60 00 00
[Example return]
  00  00  01  00  02  00 
 [Off]  [On]  [Cool down]
Input Source Set COMPUTER IN1 BE EF 03 06 00 FE D2 01 00 00 20 00 00
COMPUTER IN2 BE EF 03 06 00 3E D0 01 00 00 20 04 00
HDMI BE EF 03 06 00 0E D2 01 00 00 20 03 00
S-VIDEO BE EF 03 06 00 9E D3 01 00 00 20 02 00
VIDEO BE EF 03 06 00 6E D3 01 00 00 20 01 00
Get BE EF 03 06 00 CD D2 02 00 00 20 00 00
Error Status Get BE EF 03 06 00 D9 D8 02 00 20 60 00 00
[Example return]
  00  00  01  00  02  00  03  00 
  [Normal]  [Cover error]  [Fan error]  [Lamp error]
  04  00  05  00  07  00  08 00 
  [Temp error]  [Air flow error]  [Cold error]  [Filter error]
MAGNIFY Get BE EF 03 06 00 7C D2 02 00 07 30 00 00
Increment BE EF 03 06 00 1A D2 04 00 07 30 00 00
Decrement BE EF 03 06 00 CB D3 05 00 07 30 00 00
Magnify Position H Get BE EF 03 06 00 C8 D7 02 00 10 30 00 00
Increment BE EF 03 06 00 AE D7 04 00 10 30 00 00
Decrement BE EF 03 06 00 7F D6 05 00 10 30 00 00
Magnify Position V Get BE EF 03 06 00 34 D6 02 00 11 30 00 00
Increment BE EF 03 06 00 52 D6 04 00 11 30 00 00
Decrement BE EF 03 06 00 83 D7 05 00 11 30 00 00
FREEZE Set NORMAL BE EF 03 06 00 83 D2 01 00 02 30 00 00
FREEZE BE EF 03 06 00 13 D3 01 00 02 30 01 00
Get BE EF 03 06 00 B0 D2 02 00 02 30 00 00
BRIGHTNESS Get BE EF 03 06 00 89 D2 02 00 03 20 00 00
Increment BE EF 03 06 00 EF D2 04 00 03 20 00 00
Decrement BE EF 03 06 00 3E D3 05 00 03 20 00 00
BRIGHTNESS Reset Execute BE EF 03 06 00 58 D3 06 00 00 70 00 00
CONTRAST Get BE EF 03 06 00 FD D3 02 00 04 20 00 00
Increment BE EF 03 06 00 9B D3 04 00 04 20 00 00
Decrement BE EF 03 06 00 4A D2 05 00 04 20 00 00
CONTRAST Reset Execute BE EF 03 06 00 A4 D2 06 00 01 70 00 00
PICTURE MODE Set NORMAL BE EF 03 06 00 23 F6 01 00 BA 30 00 00
CINEMA BE EF 03 06 00 B3 F7 01 00 BA 30 01 00
DYNAMIC BE EF 03 06 00 E3 F4 01 00 BA 30 04 00
BOARD(BLACK) BE EF 03 06 00 E3 EF 01 00 BA 30 20 00
BOARD(GREEN) BE EF 03 06 00 73 EE 01 00 BA 30 21 00
WHITEBOARD BE EF 03 06 00 83 EE 01 00 BA 30 22 00
DAYTIME BE EF 03 06 00 E3 C7 01 00 BA 30 40 00
Get BE EF 03 06 00 10 F6 02 00 BA 30 00 00
(continued on next page)
RS-232C Communication / Network command table
RS-232C Communication / Network command table 
						

							20
Names Operation Type HeaderCommand Data
CRC Action Type Setting Code
GAMMA Set #1 DEFAULT BE EF 03 06 00 07 E9 01 00 A1 30 20 00
#2 DEFAULT BE EF 03 06 00 97 E8 01 00 A1 30 21 00
#3 DEFAULT BE EF 03 06 00 67 E8 01 00 A1 30 22 00
#4 DEFAULT BE EF 03 06 00 F7 E9 01 00 A1 30 23 00
#5 DEFAULT BE EF 03 06 00 C7 EB 01 00 A1 30 24 00
#6 DEFAULT BE EF 03 06 00 57 EA 01 00 A1 30 25 00
#1 CUSTOM BE EF 03 06 00 07 FD 01 00 A1 30 10 00
#2 CUSTOM BE EF 03 06 00 97 FC 01 00 A1 30 11 00
#3 CUSTOM BE EF 03 06 00 67 FC 01 00 A1 30 12 00
#4 CUSTOM BE EF 03 06 00 F7 FD 01 00 A1 30 13 00
#5 CUSTOM BE EF 03 06 00 C7 FF 01 00 A1 30 14 00
#6 CUSTOM BE EF 03 06 00 57 FE 01 00 A1 30 15 00
Get BE EF 03 06 00 F4 F0 02 00 A1 30 00 00
User Gamma Pattern Set Off BE EF 03 06 00 FB FA 01 00 80 30 00 00
9 steps gray scale BE EF 03 06 00 6B FB 01 00 80 30 01 00
15 steps gray scale BE EF 03 06 00 9B FB 01 00 80 30 02 00
Ramp BE EF 03 06 00 0B FA 01 00 80 30 03 00
Get BE EF 03 06 00 C8 FA 02 00 80 30 00 00
User Gamma Point 1 Get BE EF 03 06 00 08 FE 02 00 90 30 00 00
Increment BE EF 03 06 00 6E FE 04 00 90 30 00 00
Decrement BE EF 03 06 00 BF FF 05 00 90 30 00 00
User Gamma Point 1 ResetExecute BE EF 03 06 00 58 C2 06 00 50 70 00 00
User Gamma Point 2 Get BE EF 03 06 00 F4 FF 02 00 91 30 00 00
Increment BE EF 03 06 00 92 FF 04 00 91 30 00 00
Decrement BE EF 03 06 00 43 FE 05 00 91 30 00 00
User Gamma Point 2 ResetExecute BE EF 03 06 00 A4 C3 06 00 51 70 00 00
User Gamma Point 3 Get BE EF 03 06 00 B0 FF 02 00 92 30 00 00
Increment BE EF 03 06 00 D6 FF 04 00 92 30 00 00
Decrement BE EF 03 06 00 07 FE 05 00 92 30 00 00
User Gamma Point 3 ResetExecute BE EF 03 06 00 E0 C3 06 00 52 70 00 00
User Gamma Point 4 Get BE EF 03 06 00 4C FE 02 00 93 30 00 00
Increment BE EF 03 06 00 2A FE 04 00 93 30 00 00
Decrement BE EF 03 06 00 FB FF 05 00 93 30 00 00
User Gamma Point 4 ResetExecute BE EF 03 06 00 1C C2 06 00 53 70 00 00
User Gamma Point 5 Get BE EF 03 06 00 38 FF 02 00 94 30 00 00
Increment BE EF 03 06 00 5E FF 04 00 94 30 00 00
Decrement BE EF 03 06 00 8F FE 05 00 94 30 00 00
User Gamma Point 5 ResetExecute BE EF 03 06 00 68 C3 06 00 54 70 00 00
User Gamma Point 6 Get BE EF 03 06 00 C4 FE 02 00 95 30 00 00
Increment BE EF 03 06 00 A2 FE 04 00 95 30 00 00
Decrement BE EF 03 06 00 73 FF 05 00 95 30 00 00
User Gamma Point 6 ResetExecute BE EF 03 06 00 94 C2 06 00 55 70 00 00
User Gamma Point 7 Get BE EF 03 06 00 80 FE 02 00 96 30 00 00
Increment BE EF 03 06 00 E6 FE 04 00 96 30 00 00
Decrement BE EF 03 06 00 37 FF 05 00 96 30 00 00
User Gamma Point 7 ResetExecute BE EF 03 06 00 D0 C2 06 00 56 70 00 00
(continued on next page)
RS-232C Communication / Network command table (continued)