Commands Listed in Alphabetical Order
TRIGger:LEVe
l
This command queries or sets the trigger level, which is applied only when the
trigger source is set to External Direct. The trigger level is the voltage threshold
through whic
h the trigger source signal must pass to generate a trigger event.
This command is equivalent to setting a value for the level in the Level section
of the Trigger Setup dialog box or adjusting the Trigger LEVEL control on the
front panel.
Group
Trigger
Syntax
TRIGger:LEVel <NR3>
TRIGger:LEVel?
Related Commands
TRIGger:SOUrce, TRIGger:SETLevel
Arguments
NR3 is the v alue of the trigger level in volts.
Examples
TRIGGER:LEVEL 1.0E-1 sets the trigger level to 100 mV.
TRIGGER:LEVEL? might return TRIGGER:LEVEL 0.24100000000, indicating
that the trigger level is set to 241 mV.
TRIGger:MODe
This command sets or queries the trigger mode. This is equivalent to selecting
Auto or Normal in the Mode section of the Trigger Setup dialog box. Auto
or Normal mode applies only if the trigger source is set to External Direct or
External Prescaler.
In Normal mode, the instrument acquires data only if a valid trigger event occurs.
Otherwise, the instrument stops acquiring data, freezing the display and halting
trace calculation and measurement.
In Auto (Autotrigger) mode, if a trigger does not occur within 50 ms during any
portion of an acquisition cycle, the instrument switches to the internal clock and
provides enough triggers to finish the current acquisition cycle. As long as the
instrument is in the running state, the next acquisition begins and the process is
repeated (that is, another 50 ms must e lapse before the instrument autotriggers
again).
Group
Trigger
DSA/CSA/TDS8X00/B Series Programmer Manual 2-333
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