Vpr3 - Solid State Logic SL 9000 J Series Operator's Manual

Machine Control
Save learnt behaviour – DCTM protocol software constantly learns from a machine's
behaviour and the control parameters are updated until optimum performance is
achieved. These parameters are held in a 'locate table' which represents the 'learnt
behaviour'. Once you have set up the parameters for a particular machine, and having
allowed sufficient time for the computer to learn the machine's behaviour, stab on
Stab here... to save the current parameters to the System Disk and exit the Machine
Setup Options pop-up. Note that a different set of parameters is, of course, stored for
each DCTM machine that you set up.
Clear Learnt Behaviour – The locate table (see above) is automatically re-initialised
when either Target Window or Decision Interval parameters are changed. Clear
Learnt Behaviour can be stabbed to clear the locate table deliberately should you get
into difficulties!. When you do this, the table, both on disk and in memory, is reset to
the factory default values. The computer will then re-learn the machine's behaviour
over the next few locates. Once the machine is locating satisfactory, the table should be
saved to disk by stabbing on Save Learnt Behaviour.
Once set, hit OK to save parameters to the System Disk.
When a DCTM machine is selected on line, either with a front panel ENABLE button
or by turning State to On, the Master flag for that port 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.

VPR3

Selecting VPR3 produces the following:
Machine Option – This will be set to A and cannot be changed.
Frames to park ahead – This determines the distance that the VPR3-controlled system
(or machine) parks ahead of the target after a Stop command has been issued from the
front panel. The default value is 15 frames. For example, if the target time is 1.00.00.00,
the default entry will park the VPR3-controlled machine(s) at 1.00.00.15.
Pre-sync frames – This determines the time at which the VPR3 system will issue a
Play command, and should be set to allow slave machines to achieve play speed by
the end of the Frames to park ahead period. The default value is 5 frames. For the
example above, the default value would issue a Play command at 1.00.00.10. Note that
the value of Pre-sync should always be less than the value of Frames to park ahead.
In both cases above, stabbing on the current frames value calls up a numerical pop-up.
Once set, hit OK to save parameters to the System Disk.
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