
User Manual 301/302
Generating
Sequenced
Sequences
What Are
Sequenced
Sequences?
The model 301/302 can store 16 different sequence tables. Then, you
can program the instrument to generate either one of these
sequences at various stages of your test routines. There are cases
however, that require “nested” testing or said differently, you need to
sequence waveforms that are actually made of a sequence.
The model 301/302 is capable of linking sequences to generate a
macro linker of sequences, called – sequenced sequences.
There are a few rules to observe while generating such macro:
1. Before building a sequenced sequence table, you must first
specify the number of sequences you intend to program using the
command MSEQ:SIZE, then download individual sequence tables
to the Model 301/302.
2. You can loop Individual links or steps within a standard sequence.
You can link sequences in any order as long as they were pre-
defined however, sequences can not loop (repeat) in a sequenced
sequence table. The maximum number of links in a sequenced
sequence is 16.
3. Fast binary download format is not available for sequenced
sequences table.
The procedure for defining a table is to first specify how many
sequences participate in this macro sequence then, to download
sequence tables. Use the following command to specify the number of
sequences:
MSEQ:SIZE <size>
Size specifies the number of linked sequences in the current table.
Numbers range from 1 through 16.
The next step is to select the active sequence and to download its
associated table. Information on how to download sequence tables is
given in the Sequence Commands section of this manual.
When you finally have all sequences downloaded to the generator,
use the following command to define the macro sequence:
Configuring the Instrument
65
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