PC Operation (Continued)

<Repeater control>

This system has a function to allow setting of multiple monitors connected in a daisy chain using a single command. This function is called repeater control.

Up to about 20 monitors can be connected, depending on the length of RS-232C cables and installation environment.

You can use Repeater control function without assigning ID numbers.

[Example]

PC

Set 1

Set 2

Set 3

Set 4

If monitors are connected as shown above, you can execute a command like “Set all monitors’ input settings to INPUT”.

<Repeater control command>

Repeater control is achieved by setting the FOURTH CHARACTER of the parameter to “+”.

Example: VOLM030+ ← Sets volume of all monitors to 30.

In repeater control, responses are returned by all the connected monitors.*

If you want to determine that a value has been returned by a specific set, assign ID numbers to each monitor in advance.

If no response is returned, this may be because the monitor has not received (or is still pro- cessing) the command, so it is possible that new commands may not be executed even if they are sent.

*If power is turned “OFF” using Repeater control, only the monitor closest to the PC returns a response.

Example: (When 4 monitors are connected, and assigned ID numbers 1 through 4) VOLM030+

WAIT OK001 OK002 OK003

OK004 ← If 4 monitors are connected in a chain, reliable operation can be ensured by sending a new command only after a reply has been returned by 4th (last) monitor.

Repeater control can also be used for reading settings.

Example:

VOLM???+

WAIT

10

 

 

 

001

 

 

 

 

 

20

 

002

 

 

 

30

 

 

 

Volume settings for all monitors are returned.

 

 

 

003

 

 

 

 

40

 

 

 

004

 

 

 

 

» If repeater control is used during ID designation (IDSL, IDLK), the ID designation is canceled.

NOTE:

US 42