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<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.
PC
Set 1
Set 2
Set 3
Set 4
[Example]
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:
←
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)
WAIT
OK
001
OK
002
OK
003
OK
004
←
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.
PC Operation (Continued)
Repeater control can also be used for reading settings.
Example:
VOLM???+
WAIT
10
001
20
002
30
003
40
004
Volume settings for all monitors are returned.
NOTE:
»
If repeater control is used during ID designation (IDSL, IDLK), the ID designation is canceled.
Summary of Contents for LC-M3700
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