Grass Valley Maestro Master Control Reference Manual v.2.4.0 - Manual (Page 167)

MAESTRO — Automation Interface Protocol Technical Reference Manual 167
Use of UPDATE
MAESTRO_DVEFFECT
MAESTRO_DVEFFECT_SELECT
MAESTRO_DVEFFECT_STATE
MAESTRO_KEYER_SELECT,
MAESTRO_KEYER_CLIP,
MAESTRO_KEYER_GAIN,
MAESTRO_KEYER_HOLE_CUT_MODE,
MAESTRO_KEYER_FILL_MODE,
MAESTRO_KEYER_INVERT_MODE,
MAESTRO_KEYER_SOURCE_REQUEST,
MAESTRO_MASTER_FADE_BLACK,
MAESTRO_TRANSITION_NEXT,
MAESTRO_TRANSITION_RATE,
MAESTRO_TRANSITION_STATE,
MAESTRO_TRANSITION_TYPE,
MAESTRO_TRANSITION_TYPE_CUSTOM,
MAESTRO_WIPE_SELECT,
MAESTRO_WIPE_STATE, and
MAESTRO_WIPE_TYPE.
Issuing an UPDATE of commands that normally use an argument to report status (TAKE_XPT, SET_KEY, SET_MIX,
etc.) will result in a generated status message when the state of any of their respective arguments change.
The MUTE command clears all UPDATE commands.
Some previous examples have already used the UPDATE command. Following is a more comprehensive example of how
it might be used:
Automation: BRK 82 81 poll Maestro from IDLE state
Maestro: 04 ACK - remains in ACTIVE state
Automation: 82 80 02 08 3F 07 01 7F 45 4C 4D 02 52register for auto-updates
3F - Common Message Extension
07 - UPDATE
01 - RBGN
7F - TAKE_XPT
45 - TX_STAT
4C - VID_MODE
4D - VID_RATE
02 - REND
Maestro: 04 ACK - remains in SELECT state
Automation: 09 TEN
Maestro: 05 NAK
. . .
Automation:
09 TEN
Maestro: 05 NAK
Automation: 02 02 22 61 7B query REM_MODE
Maestro: 04 ACK
Automation: 02 03 22 7F 01 5B query TAKE_XPT PGM