User Manual

31
E
Controlling the Monitor with a PC (RS-232C)
You can control this monitor from a PC via RS-232C (COM
port) on the PC.
TIPS
• YoucannotuseRS-232CandLANcontrolsimultaneously.
PC connection
Connect the COM port on the PC (RS-232C connector) to the
CONTROLterminal(RS-232Cinputterminal)onthemonitor
usingtheRS-232Cconversioncable(supplied)andanRS-
232straightcable(commerciallyavailable).
RS-232 straight cable
(commercially available)
RS-232C conversion
cable (supplied)
To COM port
PC
CONTROL terminal
(RS-232C input terminal)
Communication conditions
Set the RS-232C communication settings on the PC to match
the monitor’s communication settings as follows:
Baudrate 9600 bps Stop bit 1 bit
Data length 8 bits Flow control None
Paritybit None
Communication procedure
n
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 P2 P3 P4
Return code
Command field
(4 prescribed
alphanumerical characters
)
Parameter field
(4 character string comprised of:
0-9, +, -, space, ?)
Example:VOLM0030
 VOLM30
* Besuretoinput4charactersfortheparameter.Padwith
spaces (“
”)ifnecessary.
(“
”isareturncode(0D
H
or0A
H
))
Wrong :VOLM30
Right :VOLM30
Wheninputtinganegativevalue,specifyanumericalvaluein
threedigits.
Example:BLVL-005
Ifacommandhas“R”listedfor“DIRECTION”inthe
“Controlcommandtable”onpage33,thecurrentvaluecanbe
returnedbyusing“?”astheparameter.
Example:
VOLM???? ←
From PC to monitor (How much
iscurrentvolumesetting?).
30 ←
From monitor to PC (Current
volume setting: 30).