Communication Procedure - Sharp PN-655E Mode D'emploi

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 P1
Parameter field
Command field
(4 character string
(4 prescribed
alphanumerical
0-9, +, space, ?)
characters)
Example: VOLM0030
VOLM 30 ("
* Be sure to input 4 characters for the parameter. Pad with spaces if necessary.
Wrong: VOLM30
Right: VOLM
If a command has "R" listed for "DIRECTION" in the "RS-232C command table" on page 46, 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 = 1)
VOLM
30 001
<Response code format>
When a command has been executed correctly
Return code
(0D
O K
When a command has not been executed correctly*
E R R
If execution of the command is taking some time
W A I T
If RS-232C is locked
Return code (0D
L O C K
Return code
P2 P3 P4
comprised of:
" indicates a space.)
30 (" " indicates a space. "
← From PC to monitor (How much is current volume setting?)
← From monitor to PC (Current volume setting: 30)
? ← From PC to monitor ("
← From monitor to PC ("
, 0A )
H H
Return code
(0D , 0A )
H H
Return code
(0D , 0A )
H H
, 0A )
H H
E D
" is the 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 command, or
when the command cannot be used in the current
state of the monitor (Example: When
"ADJUSTMENT" is used (a command which is
effective when the input mode is "ANALOG"), while
video is displayed (the input mode is "VIDEO")).
* If there is a bad connection between the PC and
monitor, or if communication has not been
established, nothing is returned (not even ERR).
With some commands, "WAIT" is returned as a return
value. Wait for a moment, and OK or ERR will be
returned. New 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 26), LOCKED is returned
as the returned value.
, 0A or 0D ).)
H H H
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