4-6
IM 701830-01E
4.4
Starting and Stopping Acquisition
Function
The following three methods are available for starting and stopping acquisition.
Using the
START/STOP
key
: The data are continuously acquired and displayed
according to the trigger mode setting (see section 6.1).
Using the “
Single Start
” soft key : Pressing the soft key sets the trigger mode to normal
(ACQ menu)
mode. When a trigger is activated the specified record
length of data is acquired once and the waveform is
displayed.
Using the “
Log Start
” soft key
: Pressing the soft key disables the trigger mode. The
(ACQ menu)
specified record length of data is acquired once and the
waveform is displayed.
When the display is in roll mode, the “
Single Start
” or “
Log Start
” operation is as follows.
• By pressing the “
Single Start
” soft key, the trigger mode is set to normal mode. After
acquiring the specified record length of data following a trigger activation, the displayed
waveform stops.
• By pressing the “
Log Start
” soft key, the trigger mode is disabled. After acquiring the
specified record length of data, the displayed waveform stops.
* The change in the trigger mode due to pressing the “
Single Start
” and “
Log Start
” soft
keys does not affect the trigger mode setting of section 6.1.
Starting and stopping during averaging or sequential store mode
Stopping acquisition will also stop data processing.
Re-starting acquisition will start data processing from the scratch.
Starting and stopping while accumulation is in progress
Stopping acquisition will stop accumulation temporarily. Re-starting acquisition will resume
accumulation from the point at which acquisition was stopped.
The START/STOP key and “Single Start,” “Log Start” soft keys are not operative
in the following cases.
The instrument is in remote state, controlled via the communication interface.
The instrument is in operation, for example, it is in the process of printing out, performing auto
set-up, or replaying (allto scroll).
Setting the waveform acquisition mode at power ON
You can select whether or not to start waveform acquisition when the power turns ON.
For example, you can set this mode to ON if you want to start waveform acquisition when the
power turns ON after a power failure.
ON : Start waveform acquisition when the power turns ON.
OFF : Do not start waveform acquisition when the power turns ON.
Initial setting is OFF.
Note
• Pressing certain keys (such as the
FILE
or
HISTORY
key) or changing the “Realtime Out” soft key
setting causes acquisition to stop immediately.
• If you change the acquisition conditions, all data already in acquisition memory is lost when acquisition
resumes.
• The snapshot function, which retains the waveforms currently displayed on the screen, is also available.
This function allows update of the display without stopping acquisition. (Refer to page 4-8.)
