Master Modes - Solid State Logic SL 9000 J Series Operator's Manual

Machine Control

Master Modes

If a DCTM machine is selected on the Serial Machine Control display, the Master flag
for that port (to the right of the Motn box) will automatically turn red. This indicates
that the machine is in 'Red-Master' mode. In this mode, the Desk (computer) sends
direct transport commands to the machine, then, once the machine is moving, slaves
to the machine's timecode returned via the computer's timecode input connector. If
you control a DCTM machine from its own transport buttons, the Desk will follow.
Sony 9-pin and VPR3 protocols offer two types of master mode:
Stabbing on the Master box once selects 'Red-Master' mode (as above). In this mode,
the Desk sends serial transport commands to the machine, then slaves to the
machine's timecode returned via the serial port. When you press PLAY on the Desk,
the play lamp will flash until the Desk has locked up to the machine. Hitting STOP
during a locate will stop the machine and re-locate the Desk to the machine's current
position. This mode is not recommended for use with VPR3 and only recommended
for use with Sony 9-pin when controlling fast-response transports such as video
machines.
Stabbing on the Master box a second time selects 'Green-Master' mode. In this mode
the machine will be slaved to the Desk. If you hit the front panel's Fast-Forward or
Rewind buttons, positional information is sent back to the Desk to provide FF and RW
speeds appropriate to the machine. Hitting STOP while the machine is in FF or RW
will cause the Desk to locate to the machine's position. This mode has particular
applications in film post-production where fast wind to a particular film frame is
required.
When 'Red-Master' and 'Green-Master' are not selected for Sony 9-pin and VPR3
controlled machines, the Desk acts as a master with the machines as slaves.
Note that only one machine port at a time can be selected to either Master mode.
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