OPERATION MANUAL

39
E
Controlling the Monitor with a computer (RS-232C)
n
Response code format
When a command has been executed correctly
O K
Return code
(0DH, 0AH)
A response is returned after a command is executed.
When a command has not been executed
R R E
Return code
(0DH, 0AH)
TIPS
• “ERR” is returned when there is no relevant command or
when the command cannot be used in the current state of
the monitor.
• Ifcommunicationhasnotbeenestablishedforreasons
such as a bad connection between the computer 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 resends the
command if this occurs.
If execution of the command is taking some time
I W T A
Return code
(0DH, 0AH)
When the following commands are used, “WAIT” is returned.
In this case, a value will be returned if you wait a while. Do not
send any command during this period.
• CommandswhichreturnWAIT:
RSET, POWR, INPS, WIDE, BOMD
n
Communication 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1000msormorebetweenthe
command response and the transmission of the next
command.
VOLM0020
OK
INPS0002
WAIT
OK
Interval of 1000 ms or more
TIPS
• WhenALLRESETisexecuted,themonitorentersstandby
state. Wait at least 1 minute before sending the next
command.
• Beforesendingapower“On”or“Off”command,itis
recommended that you perform buffer clear at the sending
application side.
• Afterexecutingapower“On”or“Off”command,waitat
least 1 minute before sending the next command.