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Programming Reference
Programming the Instrument Trigger Modes
Use the :ARM subsystem to select the overall triggering mode of the
instrument (
CONTINUOUS
,
TRIGGERED
,
GATED
,
EXT WIDTH
), and the
:TRIGger
subsystem to select the pulse period source, triggering and
number of pulse periods per
:ARM
event (
BURST
or
PATTERN
length).
Continuous
Set Continuous mode by arming the instrument from its internal
oscillator:
:ARM:SOURce IMMediate Arm from internal oscillator.
Triggered
Set Triggered mode by arming the instrument on edges from the EXT
INPUT:
:ARM:SOURce EXTernal1 Arm from EXT INPUT
:ARM:SENSe EDGE Arm on edge
:ARM:SLOPe POSitive Arm on positive edge
:ARM:LEVel 1V Set EXT INPUT threshold
You can also arm the instrument from the PLL and set the frequency (or
period) of the PLL to the required triggering rate:
:ARM:SOURce INTernal2 Arm from PLL
:ARM:SENSe EDGE Arm on edge
:ARM:SLOPe POSitive Arm on positive edge
:ARM:FREQuency <value> Set PLL frequency
NOTE The PLL (INTernal2) cannot be used as
:ARM:SOURce
(triggering rate) if
it is already being used as
:TRIGger:SOURce
(pulse period source).
Gated
Set Gated mode by arming the instrument on levels from the EXT INPUT:
:ARM:SOURce EXTernal1 Arm from EXT INPUT
:ARM:SENSe LEVel Arm on signal level
:ARM:SLOPe POSitive Arm on positive level
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