Owner`s manual

Serial Communications
VideoWall™/CineWall™ Installer/Integrator Manual 59
PRE
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IMINAR
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5.5
Command Structure
All commands start with two letters:
OP or op for operations commands (but not Op or oP)
KY or ky for key commands (but not Ky or kY)
ST or st for string commands (but not St or sT)
The next two characters are the address.
The next section of the command is the operation, the remote key, or the string, the main
part of the command telling the display what to do.
A few commands have a ‘target.’ For example, to adjust white balance, you must state
which color to change: red, green, blue, or all. Or to determine whether a memory slot is
empty, you must target the memory slot number. The target is always in
(parentheses).
The next character is the command function symbol.
There are five function symbols:
The command type can be one of 5 functions:
• Some commands are Execute only, such as resetting the lamp hours.
• Others are Set and Get only, such as setting the curtain pattern or asking what the
curtain pattern is.
• Some are Get only, such as getting the horizontal frequency of the source.
• And some are Set, Get, Increment, Decrement, such as color balance.
• The last part of the command, for Set commands only, is the value. The value may be
a number or one or two words.
Operations Control Commands
Function Command Action on unit
Set
= <value>
Makes the unit take that value.
Get
?
Asks what the current value is.
Increment
+
Adds 1 to the current value.
Decrement
-
Subtracts 1 from the current value.
Execute
(none)
Performs an action such as a reset.