Sharp PN-A601 User Manual

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33

This section explains commands for daisy chain connection. 

The basic communication procedure is the same as in the 

“One-to-one connection with a PC” section.

n

You can assign a unique ID number to each monitor (see

page 24). This allows you to control a particular monitor in a 

daisy chain of monitors.

You can assign ID numbers either from the menu screen (using

the remote control) or from the PC using RS-232 cable.

[Example] 

ID number: 1  ID number: 2  ID number: 3  ID number: 4

If monitors are connected as shown above, you can 

execute commands like “Set the volume of the monitor with 

ID 4 to 20”.

When designating ID numbers for a set of monitors linked in a

daisy chain, you should basically avoid any duplication of ID

numbers.

ID numbers do not have to be assigned in ascending order

starting from the PC. They can also be connected as shown

below.

[Example] 

ID number: 3  ID number: 2  ID number: 4  ID number: 1

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The command examples shown on this page assume the 

following connection and ID number set up.

ID number: 1  ID number: 2  ID number: 3  ID number: 4

IDST ......... A monitor receiving this command sets its own ID

number in the parameter field.

Example:

IDST0001
OK   001 ←

The ID number of this monitor is set to 1.

TIPS

You can automatically assign ID numbers by using the IDST

command with the Repeater control (see “Repeater control” 

on page 34).

For example, using the command “IDST001+” automatically

sets the ID numbers, as shown below.

[Example] 

ID number: 1  ID number: 2  ID number: 3  ID number: 4

IDST001 +

←

ID setting command with repeater control

WAIT
OK   001

←

“OK” response from ID number: 1

OK   002

←

“OK” response from ID number: 2

OK   003

←

“OK” response from ID number: 3

OK   004

←

“OK” response from ID number: 4 (End)

IDSL ........The parameter of this command sets the ID number

of the monitor. The monitor is subject to the next

command.

Example:

IDSL0002

←

The next command is for the monitor 

with ID number: 2.

WAIT

←

Searching for monitor with ID number:
2

OK   002

←

Found monitor with ID number: 2

VOLM0030

←

Sets volume of monitor with ID

number: 2 to 30.

WAIT

←

Processing

OK   002

←

OK response from monitor with ID

number: 2

VOLM0020

←

Sets volume to 20.

OK   001

←

The volume of the monitor with ID

number: 1 (the one directly connected

to the PC) is set to 20.*

*  The IDSL command is effective only once, for the

immediately succeeding command.