3152B User Manual
Publication No. 980935 Rev. A
5-68 Programming Reference
EADS North America Test and Services
continuous operating mode will generate an error. After
a trigger, the generator outputs one waveform cycle.
Then, the output level idles at a DC level equal to the
last point of the last generated waveform. If loops
(repeats) were programmed, the output will repeat this
segment every time a trigger is received. Only after
executing all of the programmed loops will the
sequencer advance to the next sequence step in the
list.
STEP
Discrete
In stepped advance mode, the sequence is advanced to
the next waveform only when a valid trigger is received.
The output of the 3152B generates the first segment
continuously until a trigger signal advances the
sequencer to the next sequence step.
MIXed
Discrete
Mixed mode is a special mode that combines automatic
sequence advance with stepped sequence advance in a
sequence. There are three conditions for the sequence
generator to operate in this mode:
1) The 3152B is set to operate in continuous mode.
2) The MIX sequence advance mode is selected.
3) The mixed mode bits for each sequence step in
the SEQ:DEF command or sequence table used.
“0” programs normal advance, “1” programs
triggered advance. Steps with a “0” MIX bit
assigned to them advance automatically to the
next step after the specified loops are complete.
Steps with a “1” assigned to them execute the
programmed number of loops and then idle at the
last point until a valid trigger signal is received, at
which point the sequencer advances to the next
step..
Response
The 3152B returns the AUTO, TRIG, STEP, or MIX depending on the current sequence advance mode
setting.
SEQuence:SELect <sequence_#>(?)
HS Syntax: <integer>(?)
Description
This command selects the active sequence to be generated by the 3152B when in sequenced mode. By
selecting the active sequence, successive :SEQ commands will affect the selected sequence only.
Parameters
Name
Range
Type
Default Description
<sequence_# > 1 to 10
Numeric
(integer only)
1
Selects the active sequence number.
Response
The 3152B returns the active sequence number.
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