Chapter 5 53
Starting (Triggering) Measurement and Waiting for Completion of Measurement
Starting (triggering) Measurement
5. Starting (Triggering)
Measurement and Waiting for
Completion of Measurement
Waiting for trigger state (trigger event detect state)
The waiting for trigger state, when the instrument is triggered (a trigger is detected) or the
:TRIG command on page 195 is executed, transitions to the measurement state after the
trigger delay time (set with the :TRIG:DEL command on page 195) has elapsed (b in
Figure 5-1).
As shown in the table below, the instrument triggering method differs depending on which
trigger mode is set. To set up the trigger mode, use the :TRIG:SOUR command on
page 196.
Figure 5-2 Transition flow from waiting for trigger state to measurement state
Measurement state (sequence operation state)
Measurement is performed in the measurement state. When the measurement is finished,
the state transitions to a different state depending on the setup of the continuous activation
of the trigger system (set with :INIT:CONT on page 183) as shown below.
When the continuous activation is OFF:
Transition to the idle state (c in Figure 5-1)
When the continuous activation is ON:
Transition to the waiting for trigger state (d in Figure 5-1)
Trigger mode Instrument triggering method
Internal trigger (Int) The instrument is automatically triggered within itself.
External trigger (Ext)
The instrument is triggered when a trigger signal is input
through the Ext Trig terminal or the handler/scanner interface.
GPIB trigger (Bus)
The instrument is triggered when the *TRG command on
page 128 is executed.
Manual trigger (Man)
The instrument is triggered when the
[Trig] key on the front
panel is pressed.
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