User`s guide

Examples
The following commands set up the 34411A for level triggering. The
CONFigure command configures the instrument for dc voltage
measurements. The 1 V range is selected with 0.1 mV resolution. The
TRIGger:SOURce command selects INTernal as the source. The
TRIGger:LEVel command sets the trigger level at 0.75 volts. The INITiate
command puts the instrument into the "wait for trigger" mode.
CONF:VOLT:DC 1,0.0001 TRIG:SOUR INT
TRIG:LEV 0.75
INIT
The following query returns the current trigger level.
TRIG:LEV?
Typical Response: +7.50000000E-01