Specifications

Chapter 5 67
Starting Measurement Cycle (Triggering) and Detecting End of Measurement
Starting a New Measurement Cycle (Triggering)
5. Starting Measurement
Cycle (Triggering) and Detecting
End of Measurement
Waiting for Trigger state (Trigger Event Detect state)
The trigger system is put into Measurement state (arrow b in Figure 5-1) after the elapse of
the trigger delay time (set with the :TRIG:DEL command on page 308) if the instrument is
triggered (a trigger is detected) or the :TRIG command on page 308 is issued while the
trigger system is in Waiting for Trigger state.
As shown in the table below, how the instrument is triggered differs depending on which
trigger source is specified. To specify the trigger source, use the :TRIG:SOUR command
on page 310.
Figure 5-2 Transition from Waiting for Trigger state to Measurement state
Trigger source How the instrument is triggered
Internal trigger The instrument is automatically triggered within itself.
External trigger The instrument is triggered when a trigger signal is input through
the Ext TRIGGER terminal or handler interface.
GPIB/LAN trigger
(Bus)
The instrument is triggered when the *TRG command on
page 208 or TRGGER command of HP BASIC is issued.
Manual trigger The instrument is triggered when the
[Trigger] key on the front
panel is pressed.