Elgar SmartWave SW1750A, Operation Manual

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SW 5250A•SW 3500A•SW 1750A Operation
Operation Manual 3-21
SELECTIO
N PURPOSE
LOAD SEQ Loads a sequence for execution from the sequence library or the sequence
scratchpad. When running under GPIB control, the Event Status Register
and serial polling can be used to indicate when the sequence loading is
complete. The front panel display will indicate “Processing sequence...” while
loading, and “Sequence loaded” when complete. This menu option should not
be confused with the sequence load option, which loads a sequence to the
scratchpad for modification.
NOTE: If any of these occurs, the sequence must be re-loaded for execution:
•
Sequence memory is reset
•
Any of the sequence fields is updated
•
Sync output is accessed
•
Error occurs when loading sequence for execution
SYNC
Configures the Rear Panel SYNC Trigger output and Front Panel Trigger
output to generate a pulse for every segment or only selected segments. After
changing the SYNC selection, the sequence must be reloaded.
CONTROL Used to start a sequence, stop a sequence, or start a sequence in the STEP
mode. A sequence must be loaded before RUN or STEP can be selected.
All operations have an immediate effect.
RUN – Run the previously loaded sequence. A sequence does not need to
be reloaded when switching between RUN, STEP or STOP. The sequence
will begin executing immediately after a RUN or STEP command.
STEP – Step through the previously loaded sequence. Each segment will
execute and remain at the value of the last cycle until instructed to execute
the next segment, or repeat the current segment. When stepping through a
sequence under front panel control, the
F1 function key is used to execute the
next segment, and the F2 key is used to repeat the current segment.
(Especially useful for ramping segments.)
STOP – Stops the active sequence.
RUN MODE
Specifies the running mode of the sequence. This parameter takes effect
once a sequence has begun.
REPEAT – Repeats sequence until a STOP command is received.
SINGLE – Executes the sequence only once, then returns to the operation
specified in the STOP MODE field.
STOP MODE Specifies the operation mode when a sequence is terminated. This can occur
when running in the SINGLE execution mode, or when STOP is selected.
ZERO – Programs the outputs to 0 volts when the sequence is terminated.
PROGRAM – Outputs are restored to waveforms and values in the Program
Menu. This mode can be used for a continuous output between sequences.
The Program Menu cannot be modified while a sequence is running. When
this mode is selected, set BOOST to OFF (see System menu).
END SEG – The outputs will remain at the waveforms and values of the last
segment in the sequence.