How to ? Trigger on a sequence
Trigger on a sequence
Use the following procedure to set up the instrument to trigger on a sequence:
1. Connect a signal to an input c hannel.
2. Set the acquisition system to Run; then set the vertical and horizontal controls appropriately for the
signal you want to acquire.
3. To trigger on A Event (main) only:
a. Click Trigger on the toolbar; then open the A->B Seq tab of the Trigger control window.
b. Click the A Only button to turn off sequential triggering.
4. To trigger on a B event after time:
a. To set the time base to run after an A trigger, a trigger delay, and a B trigger, click Trigger on the
toolbar; then open the A->B Seq tab of the Trigger Setup window.
b. Click Trig After Time.
c. To set the trigger delay, click in the Trig Delay entry box; then use the multipurpose knob or
pop-up keypad to set the time.
d. To set the B trigger level, click in the B Trig
Level entry box; then use the multipurpose knob
or pop-up keypad to set the level.
5. To trigger on B events:
a. To set the time base to trigger after an A trigger and a specified number of B trigger events, click
Trigger on the toolbar; then open the A->B Seq tab of the Trigger Setup window.
b. Click Trig on nth Event.
c. To set the number of B trigger events, click in the Trig Event entry box; then use the multipurpose
knob or pop-up keyboard to set the number of events.
d. To set the B trigger level, click in the B Trig Level entry box; then use the multipurpose knob
or pop-up keypad to set the level.
6. To set up B Event triggering:
a. To set the B Event trigger, click Trigger on the toolbar; then open the B Event tab of the Trigger
control window.
b. To specify which channel becomes the B trigger source, click Source; then select the source
from the drop-down list.
c. Click Coupling, then select the trigger coupling to match your trigger signal.
d. To specify the direction of the edge, click a Slope button, positive or negative.
e. To set the B trigger level, click in the Level entry box; then use the multipurpose knob or pop-up
keypad to set the level.
DSA/DPO70000D, MSO/DPO/DSA70000C, DPO7000C, and MSO/DPO5000 Series 641
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