Process overview
Process overview
1. The instrument starts in the idle state; it enters this state at power on, upon receiving most control setting changes, or on finishing
acquisition tasks.
2. Control settings are implemented as they are requested. When you toggle the Run/Stop control to Run, the instrument starts the
hardware.
3. The instrument acquires samples until the pretrigger portion of the waveform record (channel) being acquired is filled.
4. The instrument then begins looking for a trigger. Acquiring continues to take place, keeping the pretrigger points current, until
triggering criteria are met or a trigger is forced (Auto trigger mode only). The instrument accepts the trigger.
5. The instrument acquires samples until the posttrigger portion of the waveform record (channel) being acquired is filled.
6. If averaging or enveloping is on, the record becomes part of the multi-acquisition record that these modes produce. The process
loops back to step 3 to acquire additional records until the number of acquisitions required for the acquisition mode currently set are
processed, and then processing continues to step 7.
7. At this point, the acquisition record is in memory and is available to the instrument for measurement of its parameters, display, and
so on.
8. The instrument then checks for a user-specified stop condition and either returns to its idle state or continues at step 3, according to
what it finds.
Keep in mind that this instrument samples in real time or random equivalent time; both sampling systems provide pretrigger
information by using the trigger to stop an already running acquisition. Both sampling systems also sample the input after it is
scaled, providing improved input protection and dynamic range.
What do you want to do next?
Learn about the Acquisition System.
Learn more about triggering.
Oscilloscope reference
650 DPO70000SX, MSO/DPO70000DX, MSO/DPO70000C, DPO7000C, and MSO/DPO5000B Series
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