Controlling The Monitor With A Computer (Rs-232C); Computer Connection; Communication Conditions; Communication Procedure - Sharp PN-75HC1 Operation Manual

Controlling the Monitor with a computer (RS-232C)

You can control this monitor from a computer via RS-232C
(COM port) on the computer.

Computer connection

Connect with RS-232 straight cable between the computer's
COM port (RS-232C connector) and the RS-232C input
terminal on the monitor. The terminal on the monitor is a
female-type connector.
RS-232C
input terminal
38
E
To COM port
RS-232 straight cable
(commercially available)

Communication conditions

Set the RS-232C communication settings on the computer to
match the monitor's communication settings as follows:
Baud rate
Data length
Parity bit

Communication procedure

Computer
nCommand format
When a command is sent from the computer to the monitor,
the monitor operates according to the received command and
sends a response message to the computer.
C1 C2
Command field
(4 prescribed
alphanumerical characters)
Example: VOLM0030
* Be sure to input 4 characters for the parameter. Pad with
spaces (" ") if necessary.
(" " is a return code (0D
Wrong : VOLM30
Right : VOLM
If a command has "R" listed for "Direction" in the
"RS-232C command table" on page 40, the current value can
be returned by using "?" as the parameter.
Example:
VOLM ? ? ? ?
30
TIPS
• Send Command field, Parameter field and Return code at
the same time.
• When sending RS-232C commands with terminal software,
the return code must be sent at the same time. Two lines
should thus be created with a text editor, including the
return code. Copy this and paste to the terminal software.
Example:
POWR? ? ? ?
9600bps Stop bit
8 bits Flow control
None
C3 C4 P1 P2
Parameter field
(4 character string comprised of:
0-9, space, ?)
VOLM 30
, 0A or 0D
H H
30
From computer to monitor (How
←
much is current volume setting?).
From monitor to computer
←
(Current volume setting: 30).
1 bit
None
Return code
P3 P4
))
H