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
I1
I2
;
C1
C2
C3
:
P1
P2
Pn
ETX
Basic format (with sub command)
S1
S2
S3
S4
S5
E
P1
P2
P3
P4
P5
P6
STX
A D
I1
I2
;
C1
C2
C3
:
ETX
Same as basic format
Sub command (5 bytes)
Operation (1 byte)
*1
“=” (Value specified using parameter is set)
Parameter (6 bytes)
*1
Symbol “+” or “-” (1 byte) and set value or ad-
justment value (5 bytes)
*1
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 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 64, as well as 0A to 0Z groups.
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] is set to [ALL]. (
x
page 71)
f
STX and ETX are character codes. STX shown in hexadecimal is 02, and ETX shown in hexadecimal is 03.
ID designate
ZZ, 01 to 06
Start (1 byte)
(2 byte)
2 ID characters (2 bytes)
Semi-colon(1 byte)
3 command characters (3 bytes)
Colon(1 byte)
Parameter (undefined length) End (1 byte)
Chapter 6 Appendix - Technical Information
ENGLISH
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109
