Grass Valley Maestro Master Control Reference Manual v.2.4.0 - Manual (Page 97)

MAESTRO — Automation Interface Protocol Technical Reference Manual 97
Section
5
Definition of Extended
Maestro Commands
Introduction
The Maestro Automation Extensions to the Saturn ES serial protocol will be
accessed through the Virtual Machine Type-Specific Subset Extension
Keyword (0xFF, Mnemonic: ESMC_MAESTRO_EXT) capability of the ES
protocol. The extended Maestro Automation commands, their parameters
and functionality, are defined as follows.
All Maestro Extended commands are preceded by the transaction queue in
which it is to be placed. Refer to Sequential Transaction Queues Theory of
Operation.
CAUTION Using a mix of new Maestro commands (as described in this section) and
Saturn legacy commands (as described in the previous section) is not
encouraged. Certain combinations of Maestro/Saturn commands are not
compatible and may cause unpredictable results. For example, since a
Maestro command can set a video/audio source from 1 to 65535, but a sub-
sequent Saturn protocol query can only accommodate sources numbered
from 1 to 255, the Saturn query will return a value of zero.