Triggering Measurements; Scpi Triggering Nomenclature; Measurement Trigger Model - Keysight Technologies N3301A Programming Manual

Triggering Measurements

You can use the data acquisition trigger system to synchronize the timing of the voltage and current data
acquisition with a trigger source. Then use the FETCh commands to return different calculations from the
data acquired by the measurement trigger.

SCPI Triggering Nomenclature

In SCPI terms, trigger systems are called sequences. When more than one trigger system exists, they
are differentiated by naming them SEQuence1 and SEQuence2. SEQuence1 is the list trigger system
and SEQuence2 is the measurement trigger system. The electronic load uses aliases with more
descriptive names for these sequences. These aliases can be used instead of the sequence forms.
Sequence Form
SEQuence2

Measurement Trigger Model

Figure 3-1 is a model of the measurement trigger system. The rectangular boxes represent states. The
arrows show the transitions between states. These are labeled with the input or event that causes the
transition to occur.
Alias
ACQuire
INITIATED STATE
DELAYING STATE
SENSe:SWEep:POINts
NO TRIGger:COUNt
Figure 3-1. Model of Measurement Triggers
IDLE STATE
INITiate[:IMMediate]
TRIGGER RECEIVED
DELAY COMPLETED
ACQUIRED
COMPLETE?
YES
Programming Examples - 3
ABORt
*RST
*RCL
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