Sharp PN-H701 Operation Manual page 32

Controlling the Monitor with a PC (RS-232C)
nResponse code format
When a command has been executed correctly
O K
A response is returned after a command is executed.
When a command has not been executed
E R R
TIPS
• "ERR" is returned when there is no relevant command or
when the command cannot be used in the current state of
the monitor. "ERR" is also returned when return code only
is sent without any command.
• If communication has not been established for reasons
such as a bad connection between the PC and monitor,
nothing is returned (not even ERR).
• "ERR" may be returned when a command cannot be
received correctly due to interference from the surrounding
environment.
Please ensure that the system or software retries the
command if this occurs.
nCommunication interval
• After OK or ERR is returned, you must send the following
commands.
To set a timeout for the command response, specify 10
seconds or longer.
• Provide an interval of 100 ms or more between the
command response and the transmission of the next
command.
VOLM0020
OK
CONT0001
OK
32
E
Return code
(0D , 0A )
H H
Return code
(0D , 0A )
H H
Interval of 100 ms or more