Rigol DS6000 Series User Manual page 106

RIGOL
5 To Trigger the Oscilloscope
Auto:
No matter whether the trigger condition is met, there is always waveform display. A
horizontal line is displayed when no signal is input.
When this mode is selected, the oscilloscope fills the pre-trigger buffer first and then
search for a trigger while at the same time continues filling data. When the
oscilloscope is searching for trigger, the data firstly filled into the pre-trigger buffer
will overflow and be pushed out of the FIFO queue. When a trigger is found, the
pre-trigger buffer would contain the data acquired before the trigger. If no trigger is
found, the oscilloscope will trigger forcefully.
This trigger mode is applicable to signals with low repetitive rate and signals with
unknown level. To display DC signals, this trigger mode must be used.
Normal:
Display the waveform when the trigger condition is met or hold the original
waveform and wait for the next trigger when the trigger condition is not met.
When this mode is selected, the oscilloscope fills the pre-trigger buffer first and then
search for a trigger while at the same time continues filling data. When the
oscilloscope is searching for trigger, the data firstly filled into the pre-trigger buffer
will overflow and be pushed out of the FIFO queue. When a trigger is found, the
oscilloscope will fill the post-trigger buffer and display the acquisition memory.
This trigger mode is applicable to signal with low repetitive rate and signal that does
not require auto trigger.
Note: In this mode, press FORCE to generate a trigger signal forcefully.
Single:
After this mode is selected, the backlight of Single turns on, the oscilloscope waits
for a trigger and displays the waveform when the trigger condition is met and then
stops.
Note: In this mode, press FORCE to generate a trigger signal forcefully.
5-4 DS6000 User's Guide