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PC Operation
Communication procedure
Basic operation
<Command format>
When a command is sent from the PC to the monitor, the monitor operates according to the received
command, and sends a response message to the PC.
C1
C2
C3
C4
Command field
(4 prescribed
alphanumerical
characters)
Example: VOLM0030
POWR
* Be sure to input 4 characters for the parameter. Pad with spaces if necessary.
✕ VOLM30
● ●
VOLM
If a command has "R" listed for "DIRECTION" in the "RS-232C Command table" on page 52, the current
value can be returned by using "?" as the parameter.
Example: 1. If an ID number has not been set:
VOLM????
30
2. If an ID number has been assigned (For example, ID number = 001)
VOLM
30
001
<Response code format>
■ When a command has been executed correctly
O
K
■ When a command has not been executed correctly*
E
R
■ If execution of the command is taking some time
W
A
■ If RS-232C is locked
Carriage return code (0D
L
O
40
E
P1
P2
P3
P4
Parameter field
(4 character string
comprised of:
0-9, +, -, space, ?)
1 ("
" indicates a space.)
30
("
" indicates a space. "
← From PC to monitor (Current volume setting: ?)
← From monitor to PC (Current volume setting: 30)
?
← From PC to monitor ("
← From monitor to PC ("
Carriage return code
(0D
, 0A
)
H
H
Carriage return code
(0D
, 0A
)
H
H
R
Carriage return code
(0D
, 0A
H
I
T
, 0A
)
H
H
C
K
E
D
(Continued)
Carriage return code
" is the carriage return code (0D
" indicates a space.)
" indicates a space.)
This is returned when execution of the command
is finished.
* This is returned when there is no such com-
mand, or when the command cannot be used in
the current state of the monitor (i.e. video auto-
adjustment with video display).
* If there is a bad connection between the PC
and monitor, or if communication has not been
established, nothing is returned (not even
ERR).
If a command takes some time to execute, WAIT
may be returned as the return value. Wait for a
moment, and OK or ERR will be returned. New
)
H
commands cannot be received during this time,
even if they are sent.
If RS-232C control has been locked with the
operation lock (see page 29), LOCKED is re-
turned as the returned value.
, 0AH or 0D
).)
H
H
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