Panasonic PT-DZ770E Operating Guide
Technical information
114 - ENGLISH
Appendix
▶
■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.
(2 bytes) ID2 characters
(2 bytes)
Semi-colon
(1 byte)
Colon (1 byte)
Command 3 characters
(3 bytes)
Parameter
(undefined length)
End (1 byte)
Start (1 byte)
ZZ, 01 – 64 and 0A – 0Z
ID setting area
Attention
z
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.
z
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
z
If a command cannot be executed, a “ER401” response is sent from the projector to the computer.
z
If an invalid parameter is sent, an “ER402” response is sent from the projector to the computer.
z
ID transmission in RS-232C supports ZZ (ALL) and 01 to 64, as well as 0A to 0Z groups.
z
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
–▶ID setting is set to ALL and [RESPONSE(ID ALL)] is [ON]
–▶ID setting is set to GROUP and [RESPONSE(ID GROUP)] is [ON]
z
STX and ETX are character codes. STX shown in hexadecimal is 02, and ETX shown in hexadecimal is 03.
▶
■When multiple projectors are controlled
▶
z
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).
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).
▶
z
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 [RESPONSE(ID GROUP)] to [ON] in only one projector.
3) Set [RESPONSE(ID GROUP)] to [OFF] for all other projectors set in Step 2).
2) Set [RESPONSE(ID GROUP)] to [ON] in only one projector.
3) Set [RESPONSE(ID GROUP)] to [OFF] for all other projectors set in Step 2).
Note
z
There will be no response if 2 or more projectors have [RESPONSE(ID ALL)] set to [ON].
z
There will be no response if 2 or more projectors of the same group have [RESPONSE(ID GROUP)] set to [ON].
z
When setting multiple groups, set [RESPONSE(ID ALL)] to [ON] in only one projector in each group.