Basic format
Transmission from the computer starts with STX, then the ID, command, parameter, and ETX are sent in this
order. Add parameters according to the details of control.
STX
A D
(2 byte)
Start (1 byte)
2 ID characters (2 bytes)
Basic format (with sub command)
STX
A D
S1
S2
S3
Sub command (5 bytes)
* When transmitting a command which does not need a parameter, the operation (E) and parameter are not necessary.
Attention
f If a command is transmitted after the luminous lamp starts illuminating, there may be a delay in response or the command may not be
executed. Try sending or receiving any command after 60 seconds.
f When transmitting multiple commands, be sure to wait until 0.5 seconds has elapsed after receiving the response from the projector before
sending the next command. When transmitting a command which does not need a parameter, a colon (:) is not necessary.
Note
f If a command cannot be executed, the "ER401" response is sent from the projector to the computer.
f If an invalid parameter is sent, the "ER402" response is sent from the projector to the computer.
f ID transmission in RS-232C supports ZZ (ALL) and 01 to 06.
f If a command is sent with a specified ID, a response will be sent to the computer only in the following cases.
- It matches the projector ID.
- [PROJECTOR ID] (x page 75) is set to [ALL].
f STX and ETX are character codes. STX shown in hexadecimal is 02, and ETX shown in hexadecimal is 03.
Cable specifications
[When connected to a computer]
(<SERIAL IN> terminal)
126 - ENGLISH
Chapter 7 Appendix - Technical Information
ID designate
ZZ, 01 to 06
I1
I2
;
C1
3 command characters (3 bytes)
Semi-colon(1 byte)
Same as basic format
I1
I2
;
C1
S4
S5
E
Operation (1 byte)
"=" (Value specified using parameter is set)
1
2
3
4
Projector
5
6
7
8
9
C2
C3
:
P1
Colon (1 byte)
Parameter (undefined length)
C2
C3
:
P1
P2
P3
P4
Parameter (6 bytes)*
Symbol "+" or " - " (1 byte) and set value or ad-
justment value (5 bytes)
1
NC
NC
2
3
4
NC
NC
Computer
5
(DTE specifications)
6
NC
NC
7
8
9
NC
NC
P2
Pn
ETX
End (1 byte)
ETX
P5
P6