Chapter 7
Appendix — Technical information
238 - ENGLISH
Attention
f
If a command is sent after the light source starts lighting, 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 an ID designated, a response will be sent to the computer only in the following cases.
g
It matches the projector ID
g
ID is designated as ALL and [RESPONSE(ID ALL)] is set to [ON]
g
ID is designated as GROUP and [RESPONSE(ID GROUP)] is set to [ON]
f
STX and ETX are character codes. STX shown in hexadecimal is 02, and ETX shown in hexadecimal is 03.
When multiple projectors are controlled
When multiple projectors are all controlled
When controlling multiple projectors together via RS-232C, perform the following settings.
1) Set a different ID for each projector.
2) Set [RESPONSE(ID ALL)] to [ON] in only one projector.
3) Set [RESPONSE(ID ALL)] to [OFF] for all other projectors set in Step 2).
When multiple projectors are all controlled by group unit
When controlling multiple projectors by group unit via RS-232C, perform the following settings.
1) Set a different ID for each projector.
2) Set the same setting for [GROUP] in each group.
3) Set [RESPONSE(ID GROUP)] to [ON] in only one projector.
4) Set [RESPONSE(ID GROUP)] to [OFF] for all other projectors set in Step 3).
Note
f
Response is not made correctly if [RESPONSE(ID ALL)] is set to [ON] in two or more projectors.
f
When setting multiple groups, set [RESPONSE(ID GROUP)] to [ON] in only one projector in each group.
Response is not made correctly if [RESPONSE(ID GROUP)] is set to [ON] in two or more projectors of the same group.
Cable specification
1
NC NC
1
2
2
3
3
4
NC NC
4
5
5
6
NC NC
6
7
7
8
8
9
NC NC
9
1
NC NC
1
2
2
3
3
4
NC NC
4
5
5
6
NC NC
6
7
7
8
8
9
NC NC
9
When connected to a computer
Projector
(<SERIAL IN> terminal)
Computer
(DTE specifications)
When multiple projectors are connected
Projector 1
(<SERIAL OUT>
terminal)
Projector 2
(<SERIAL IN>
terminal)
