Command strings, Command strings -33 – Grass Valley Performer SD User Manual
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Serial Protocol Descriptions
If a carriage return is received before a command string is
complete, the Performer will display ERR P for about half a
second in the status display. ERR P will also be displayed on
receipt of parity/overrun, checksum, or syntax errors.
Command Strings
Commands, , must consist of exactly
characters forming a string of zero or more commands. Each
command must consist of a single
the command, followed by any required by that
command. The following command characters and data are
supported.
Description
D (44H)
A (41H)
(None)
All-destination Take of current preset
matrix
T (74H)
Take of specified destination only
P (50H)
Protect specified destination (must be
refreshed every 30 seconds)
C(43H)
Clear protect on specified destination
R (52H)
(None)
Reset Performer to factory defaults
Q (71H)
Query for status of specified destination
S (53H)
Status response
Except for the S command, all of the above are sent by the
controller to the Performer. The S command is sent by Performer
to the controller in response to a Q (Query for status) command.
Performer generates a response to the Q command only.
The R command (Reset) causes Performer to initialize just as if
power had been turned off, then on. No data should follow the R
command.