Basic Format - Panasonic PJLink PT-LW330 Operating Instructions Manual

Basic format

Transmission from the computer starts with STX, then the command, parameter, and ETX are sent in this order. Add
parameters according to the details of control.
Start (1 byte)
Basic format (with sub command)
STX C1
S1 S2
Sub command (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 STX and ETX are character codes. STX shown in hexadecimal is 02, and ETX shown in hexadecimal is 03.
Chapter 6 Appendix - Technical Information
STX C1 C2 C3
3 command characters (3 bytes)
Same as basic format
C2 C3 :
S3 S4 S5 E
Operation (1 byte)
"=" (Value specified using parameter is set)
: P1 P2
Colon(1 byte)
Parameter (undefined length) End (1 byte)
ETX
P1 P2 P3 P4
Parameter (6 bytes)*
1
Symbol "+" or " - " (1 byte) and set value or ad-
justment value (5 bytes)
Pn ETX
P5 P6
ENGLISH - 95