Sample Messages And Their Meaning - Christie CP2000-SB User Manual

DATA: The value for a given projector parameter, such as ON or OFF, appears in ASCII-decimal format
directly after the request/reply symbol. Unless you add an optional space after the symbol (i.e., before the data)
in a set message, data immediately follows the request/reply symbol without a space. Other details about data:
• All values returned by the projector (reply messages) have a fixed length of either 3 or 5 characters
regardless of the actual value-the value is padded with leading zeros as needed.
• Data in set messages does not require padding.
• For any given parameter, data length is always the same. E.g., the picture mute value, which is either on
(1) or off (0) is always 3-digits: 001 or 000.
• Within one message, multiple parameters of data must be separated by one space character.
• Data pertaining to a specific source other than the current source is preceded by: the letter S, the source
number (i.e., channel), and a space. This is similar to an extra parameter P0.
• Text parameters such as channel names are enclosed in double quotes following the data, as in Name.
TEXT PARAMETERS: Most data is simply a numerical value, however some messages also require text.
For example, a channel naming message typically includes a text-based name after the channel number-
enclose this text in double quotation marks, as in "Tilt the Wagon". Use all characters as desired except
for the following special characters-these require a 2-character combination as shown in Table 3.21:
Table 3.21 Special Characters for Text
If you want this...
\
"
(
)
0x0A
0x1B

3.6.3 Sample Messages and Their Meaning

Table 3.22 Sample Messages
Desired Action
Get current Chan #
Chan # reply from proj.
Set Chan #
Get picture mute status
Picture mute reply from proj.
Set picture mute
CP2000-SB User Manual
020-100162-06 Rev. 1 (03-2014)
Enter this...
\\ Backslash
\" Quote
\( Left bracket
\) Right bracket
\n New line - if the text can be displayed on more than
one line, this will cause the next character to be dis-
played at the start of the line that follows the current
one.
\x control code (ESC)
Message
(CHA?) Request by controller for current channel #
(CHA!101) Reply from proj. that current channel is 101
(CHA 101) Switch to the first channel on the TPC
(PMT?) Request by controller for picture mute status
(PMT!000) Reply from proj. that picture is mute is off.
(PMT 1) Turn the picture mute on (blank the image)
Description
Description
Section 1: Introduction
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