Sharp PN-Y325 User Manual

32

E

You can control this monitor from a PC via RS-232C (COM 

port) on the PC.

You can also connect multiple monitors via a daisy chain by 

using a PC. By assigning ID numbers to each monitor (see 

page 33), you can make input mode selection/adjustment or 

can check the status of a specific monitor.

TIPS

•  To control the monitor via RS-232C, set STANDBY MODE 

to STANDARD.

n

Connect with RS-232 straight cable between the PC’s COM 

port (RS-232C connector) and the RS-232C input terminal on 

the monitor.

RS-232 straight cable

(commercially available)

To COM port

PC

RS-232C

input terminal

n

PN-Y325 monitors can be connected together in a daisy chain 

connection. 

Connect with RS-232 straight cable between the PC’s COM 

port (RS-232C connector) and the RS-232C input terminal on 

the first monitor. 

Next, connect RS-232 straight cable to the first monitor’s 

RS-232C output terminal and to the second monitor’s 

RS-232C input terminal. Connect in the same way to the third 

and subsequent monitors.

Up to 25 monitors can be connected. (Depending on the 

length of the cable used and the surrounding environment.)

RS-232C

input terminal

RS-232C

output terminal

To COM port

PC

First monitor

Second monitor

RS-232 straight cables 

(commercially available)

Set the RS-232C communication settings on the PC to match 

the monitor’s communication settings as follows:

Baud rate

9600bps

Stop bit

1 bit

Data length

8 bits

Flow control

None

Parity bit

None

n

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 

(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

, 0A

H

 or 0D

H

))

Wrong  : VOLM30

Right  : VOLM     30

Do not use spaces for DATE. Specify parameters using a 

specified number of characters.

If a command has “R” listed for “DIRECTION” in the 

“RS-232C command table” on page 36, 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).

*  If an ID number (see page 33) has been assigned 

(For example, ID number = 1).

VOLM 

?

←

From PC to monitor.

30   001

←

From monitor to PC.