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To Set Up a Device Transport Command
Note: Device transport commands can only be added to a
Transport custom control bank.
1. Press HOME > Custom Controls .
2. Use the Bank and Button knobs to select the
custom control that you want to record to.
3. Press Assign Button > VTR .
4. Use the BNC knob to select the VTR that you
want to assign the transport command to.
This is the VTR that the custom control will
send the commands to.
5. Use the Function knob to select the
command you want to assign to the button.
6. Press Insert .
Only a single command can be programmed
into the custom control.
Variable Pause
You can place a command in a custom control
that will stop, or pause, a custom control where
the pause is placed in the custom control. The
length of time that the custom control is paused
is set as the result of the Pause Equation.
Variable pauses are commonly used to insert
pauses into custom controls to compensate for
satellite uplink latency. For example, you can
use a variable in all your custom controls where
you need to sync with a satellite feed. You can
then adjust that variable for changes in latency,
and all your custom controls that use that
variable are updated.
To Set a Variable Pause Value
Tip: Press Reset All to set all the variable to the default value
(0).
1. Press HOME > Custom Controls > More >
Set Variables .
2. Use the Variable knob to select the variable
that you want to set a value for. If you
change the value of a variable, all equations
that use that variable will be changed.
3. Use the Frames and Seconds knobs to select
the length of time that you want to the
variable set to. The number of frames for
each second depends on the video format
the switcher is operating in.
To Insert a Variable Pause
1. Press HOME > Custom Controls .
2. Record your custom control to the point
where you want to insert the pause and
press Insert Event > Special .
3. Use the Function knob to select V Pause CC .
4. In the Enter Pause Eq'n field, enter the
equation you want to calculate the length
of the variable pause.
The equation can be any combination of
variables that are added (+), subtracted (-)
or multiplied (*) together. Negative
numbers, division, and spaces are not
supported. Side-by-side variables are
multiplied together (AB=A×B).
5. Press Insert .
Custom Control Logical Expressions
You can insert a logical expression (IF/ELSE)
into a custom control as events. When the
custom control is run the logical expression is
evaluated and the results executed.
Note: Logical expressions are not validated when inserted or
executed. Ensure the logic expressions in your custom control
are well formed before executing the custom control.
The following logical events are supported:
•
If — the start of a boolean expression
requiring a variable, operator, and condition.
If the expression returns true the custom
control events inserted after this event are
executed. If the expression returns false the
custom control jumps to the next boolean
condition ( Else If or Else ) or end ( End If ).
• Else If — the start of a nested boolean
expression where the parent boolean
expression has returned false and another
boolean expression is evaluated. An Else If,
unlike an If, will only be evaluated if the
parent If or Else If has returned false.
• Else — the end of a boolean expression
where the current If (If or Else If) evaluation
has returned false. The custom control events
inserted after this event are executed only
when the If evaluation returns false.
• End If — the end of the boolean expression.
The End If is required for the expression to
be evaluated properly. The custom control
events inserted after this event are always
executed.
Ultrix Acuity Operation Manual (v10.1) — Custom Controls • 89