Basic Message Structure; Start And End Of Message; Prefix Characters (Optional; Projector Numbers (Optional - Christie Entero RPMWU User Manual

Appendix C: Serial Command Overview
Table C.1 Message Formats
SOURCE
From Controller (Code Data)
(Code+Subcode Data)
From Controller (Code ?)
(Code+Subcode ?)
From Projector (Code Data)
(Code+Subcode Data)
C.2.1 Basic Message Structure
The following component fields comprise a standard ASCII message. Optional fields, such as extra characters
for special modes, restrictions or added functionality, are shown in italics, with the exception of Notes.

Start and End of Message

Every message begins with the "(" (left bracket) character and ends with the ")" (right bracket) character.
If the start character (left bracket) is received before an end character of the previous message, the partial
NOTE:
(previous) message is discarded.

Prefix Characters (Optional)

For acknowledgement that the projector has responded, and/or to maximize message integrity, insert one or
two special characters before the 3-character Function code:
Special
Character
$
#
&

Projector Numbers (Optional)

To control a selected projector or controller within a group, include its assigned number or address just before
the 3-character ASCII Function code. See

Function Code

The projector function you wish to work with, such as channel selection or gamma, is represented by a 3-
character ASCII code (A-Z, upper or lowercase). This Function code appears immediately after the leading "("
(left bracket) that starts the message. In messages sent to the projector that do not have a Subcode, a space
between the Function code, and the first parameter (or special character) is optional.

+Subcode

The projector function you wish to work with may have one or more subcodes that will allow you to select a
specific source, image, channel or subfunction. The Subcode is represented by a 4-character ASCII code (A-Z,
upper or lowercase, and 0-9). This Subcode appears immediately after the Function code, with a "+" character
C-2
MESSAGE FORMAT
Simple Acknowledgment, which will cause a '$' character to be sent back from the projector when
it has finished processing the message. See
Full Acknowledgment, which will cause an echo of the message as a reply to be sent back from the
projector when it has finished processing the message. See
Checksum, which will allow a checksum to be put as the last parameter in the message for verifica-
tion at the projector. See
FUNCTION
SET (set contrast of main image to 500)
SET (set contrast of PIP image to 500)
REQUEST (what is current contrast?)
REQUEST (what is contrast of PIP image?)
REPLY (contrast is 500)
REPLY (PIP contrast is 500)
Description
C.2.4 Maximizing Message Integrity.
C.2.4 Maximizing Message
C.2.7 Network Operation.
EXAMPLES
(CON500) or (CON 500)
(CON+PIIP500) or (CON +PIIP 500)
(CON?) or (CON ?)
(CON+PIIP?) or (CON+PIIP ?)
(CON!500)
(CON+PIIP!500)
C.2.4 Maximizing Message
Integrity.
Entero RPMWU/RPMSP/RPMHD-LED01 User Manual
Integrity.
020-100367-05 Rev. 1 (06-2012)