Belden GRASS VALLEY NV9640A, Руководство пользователя, Страница: 89 / 112

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NV9640A
User’s Guide
This is a summary of Boolean operations:
All operands evaluate either TRUE or FALSE.
AND = true if ALL terms are true; false if ANY term is false.
OR = false if ALL terms are false; true if ANY term is true.
NOT = true if term is false; false if term is true (i.e., negation).
 Relay output expressions can be as rich (or complex) as you require.
Configuring Inputs
Clicking an input button (one of 8) displays the GPI input dialog:
An event is signalled when a transition occurs on the input from on to off or from off to on. You
can configure the NV9640A to recognize either occurrence on any of the 8 inputs, and specify
one of 4 behaviors for each event or both:
1 Execute a salvo.
If you choose this behavior, select a salvo ID in the salvo drop-down list.
Note: Although it is not evident in the GPIO input dialog (or anywhere else), a ‘Previous
Source’ command in a salvo chooses the most recent source that is different from the current
source (for a designated destination).
2 Route the “previous source” (that was switched by any control panel) to a destination, even
if it is the same as the current source.
If you choose this behavior, select a destination in the destination drop-down list.
3 Route the “previous source” switched by this panel to a destination, even if it is the same as
the current source.
If you choose this behavior, select a destination in the destination drop-down list.
4 Route a source to a destination.
If you choose this behavior, select a source and a destination in the two drop-down lists.