The trigger, gate and enable signals are used to control the start behavior of the
sequencer, depending on the selected mode. The trigger starts the sequencer in trigger
mode triggered; the gate has the corresponding functionality (start and stop) in trigger
mode gated. The enable is needed in the armed/continuous mode. In this mode the first
element is hold in the conditional advancement mode until enable becomes active.
During further loops of the sequence or scenario, the enable is ignored and the element
is executed with the advancement mode specified in the sequence table. So the enable
allows providing not only an initial offset value, before the real start of the sequencer,
but also an initial segment or sequence.
The advancement event is used to advance within a scenario or sequence. Responsible
for the type of advancement is the selected advancement mode of the element. The
advancement event is stored internally until the sequencer uses it.
Example:
When receiving an advancement event while executing a conditional segment, the
advancement event is stored until reaching the end of the segment where the
advancement is used. Then the stored advancement event is cleared and the
instrument is able to receive the next one.
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