Trigger - Tabor Electronics 5064 User Manual

The Sequence Table is demonstrated in Figure 4-10. To access the
Sequence table, click anywhere on the Sequence Table area. If it
was not yet, it will turn white as opposed to the Segment Table area
that turns gray.
There are four major elements that you should consider while
programming a sequence table. They are: Link, Seg, Loops and
Adv. These terms are explained below.
Link - This parameter defines an index array for the sequence
generator. When generating sequences, the instrument steps
though the links in descending order therefore, make sure that you
enter your waveform segments in exactly the order you would like
them at the output.
Seg - This parameter associates waveform segments with links.
You can use different segments for different links or you can use
the same segment for a number of links. There are no limitations
how you associate links to segments, except you cannot program in
the sequence table segments that were not defined earlier.
Loops – This parameter define how many times the segment will
loop for the selected link. For example, if you program 2, the
waveform will cycle twice through the same segment before
transitioning to the next link.
Adv – This parameter flags the advance mode for the specific
segment. This flag is active when the advance mode is Stepped.
When set to 0, the sequence will advance through the list
automatically until a segment that is flagged 1 is encountered.
When 1 is encountered, the generator will idle on this segment until
an external trigger is applied. Learn more about the sequence
advance modes in Chapter 3.
Figure 4-8 shows an example of a 5-step sequence of which the
first waveform is made of segment 2, which will loop 15 times;
segment 4, looping 2 times; segment 1, looping 7 times; segment 2,
once and segment 3, looping 4 times. The Adv bits on links 2 and 5
are set to 1 and therefore, external triggers are required for the
sequencer to step through these links.
The 2074 has two separate sequence generators, one for
each channel. If the 2074 is programmed to continuous
run mode, make sure both channels have the same
sequence length for inter-channel synchronization. For
triggered run mode, each channel can be programmed
for a unique sequence length.
The control buttons on the left of the Sequence Table have the
ArbConnection
The Control Panels
HINT
4
4-19