Is there a way for the sequencer to tell when a frequency sweep is complete?
I assume there's a variable that I can check so the sequencer knows when a sweep has finished.
yes, if the sweep is generated by DEWESoft function generator, it is possible to enable the info channels.
When this option is enabled, the channel which shows current output frequency will appear.
This channel can be then used in the sequencer as condition for "Wait" or "If" block.