Owner`s manual

Serial Communications
68 VideoWall™/CineWall™ Installer/Integrator Manual
PRE
L
IMINAR
Y
Asking (Get) and Telling
(Set)
To ask about a value or condition, use a question mark [ ? ]. No character should follow
the question mark. To set a value or condition, use an equal sign [
= ]. A value must
follow the equal sign.
Types of Responses Responses from the display can be Symbolic (mostly text), Numeric (mostly numbers), or
Data Only.
Whenever a command is sent to an individual ID, wait for the response before
sending a second command.
➤
Command Example (Note) Explanation
op 00 auto.lamp ? [CR]
asks whether the auto lamp feature is on or off
for display 00.
op 1* auto.lamp = on [CR]
turns on the auto lamp feature for each display
that has a Group ID of 1 (and any Unit ID).
op 0* auto.lamp ? [CR]
won’t work. All queries [ ? ] must be
addressed to individual displays only; no
asterisks [
* ] in the command line.
Note: The command line must always end with a carriage return character ([CR]). The
VideoWall/CineWall will not act on the command unless the last character is a carriage return
character (ascii hex value: 0D).
➤
Table 5-2. Symbolic Response Examples
Command and Response
Examples
Explanation
op 50 auto.lamp ? [CR]
would get the Symbolic response
OP 50 AUTO.LAMP=DISABLE
Text in responses are all caps, regardless of what you
sent.
Table 5-3. Numeric Response Examples
Command and Response
Examples
Explanation
op 50 auto.lamp ? [CR]
would get the Numeric response
OP 50 1037=0
Notice that you can send commands as text and get the
response as numeric. 1037 is the Operation Number for
auto.lamp, and 0 means Disabled. It works the other
way, too. Ask the question with all numbers and get a text
response, if
ascii.response is set to Symbolic.