Grass Valley NV9654 v.1.1 - Manual (Page 79)

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NV9654
User’s Guide
Selection Button Organization
A button page in your panel might have any number of selection buttons, in any arrangement.
Typically though, a page provides either a row or matrix of selection buttons. Selection buttons
are numbered. (Configurers call the numbers “display indexes.”) The typical selection button
arrangement is consecutive integers. But that is not a requirement.
The selection buttons on any button page form an independent set. That is, the selection
buttons on any page are unrelated to the selection buttons on any other page.
Only the selection buttons on the currently visible page are active at a given time.
When the panel is in X-Y mode, the selection button number is a level number. If the current
destination has no level number equal to a selection button number, the selection button is
dark (turned off ).
When the panel is in MD mode, the selection number is an MD device number. If there is no MD
device number equal to a selection button number, the selection buttonn is dark (turned off ).
Because the NV9654 allows a configuration to have up to 512 MD devices, it also allows config-
urers to assign any integer up to 512 as the button’s selection number. Thus, a given selection
button might for instance represent MD device 497. (That button would also represent level 497
in X-Y mode, but usually there are no level numbers that high. A selection button whose
number represents level 497 would be turned off, and therefore useless in X-Y mode.)
Scrolling
By pressing a ‘Page Up’ or ‘Page Down’ button, the panel operator can scroll either the selection
buttons or the display (if there is one) or both.
‘Page Up’ scrolling makes the selection button numbers decrease by an amount equal to the
number of selection buttons on the panel’s current button page. ‘Page Down’ makes the selec-
tion button numbers increase. (“Up” means toward the beginning of the list; “down” means
toward the end of the list
— higher numbers.)
A relatively small number of selection buttons can thus be used to select any level (in X-Y mode)
or any MD device (in MD mode) because you can scroll through the available levels or MD
devices on the available buttons.
Scrolling is affected by two factors — the presence or absence of a ‘VFD/Sel Paging Toggle’
button and whether the ‘Page VFD only’ option is in effect. Thus,
If your panel does not have a ‘VFD/Sel Paging Toggle’ button,
1 When the ‘Page VFD Only’ option is not in effect, selection buttons scroll (modulo 8) when
the panel’s display scrolls. We can say that the selection buttons “follow” the display.
2 When the ‘Page VFD Only’ option is in effect, only the panel’s display scrolls.
If your panel does have a ‘VFD/Sel Paging Toggle’ button,
1 When the ‘VFD/Sel Paging Toggle’ button reads ‘Paging LCD Display’, the panel’s display
scrolls (and selection buttons do not).
2 When the ‘VFD/Sel Paging Toggle’ button reads ‘Paging Select Buttons’, the selection but-
tons scroll by an increment equal to the number of buttons on the page (and the display
does not scroll).
Under the ‘All Buttons’ model, there is no such side effect.
 At present, there is a bug that makes the selection buttons scroll in increments of 8 no
matter how many selection buttons are present.