51
ENGLISH
Using the serial terminals
Pin assignments and signal names
Communication conditions (Factory setting)
Basic format
Transmission from the computer begins with STX, then the ID, command, parameter, and ETX are sent in this
order. Add parameters according to the details of control.
The main unit is equipped with SERIAL terminals located in its terminal section on the side, and this terminal is
compliant with RS-232C. Also a serial output terminal is provided to enable plural projector control.
Examples of connection
Single projector Plural projectors
• If a command is sent within about 60 seconds after the lamp is turned on, the response may be
returned late or the command may be unable to be executed. Try sending and receiving commands
after 60 seconds has elapsed.
• When sending several commands, be sure to wait for more than 0.5 seconds after receiving a
response from the projector, and then send the next command. When sending commands without
parameters, a colon (:) is not necessary.
Attention
• If a command cannot be executed, the projector will send an “ER401” response to the computer.
• If an invalid command is received, the projector will send an “ER402” response to the computer.
• Projector ID supported on the RS-232C interface is ZZ (ALL) and a group of 1 to 64 and 0A to 0Z.
•
If a command is sent with a projector ID specified, the projector will return answer back only in the following cases:
if it coincides with the projector ID,
ID specification is ALL and VPS-SYSTEM is the master, or
ID specification is group and Group is the master.
• In the hexadecimal format, STX has the character code 02 and ETX the character code 03.
Note
