User Manual

6.1 About Triggering
130
What is triggering?
Triggering is the process of controlling the start and stop of recording by specific
signals or conditions (criteria). When recording is started or stopped by a specific
signal, we say the trigger is “applied” or “triggering occurs”.
In this manual, indicates a “trigger point”, as the time at which a trigger is
applied.
About measurement operations when triggering occurs:
See "Measurement and Internal Operations" (
⇒ p. 76)
Signals that can be used for triggering (trigger sources) are as follows.
• A trigger can be applied by combining (AND/OR) criteria from multiple trigger
sources (except manual triggering) (⇒ p. 133).
• When Restart Permission is set to [Yes] (on the Environment Settings screen
(⇒ p. 341)), if trigger criteria (trigger source settings or pre-trigger) are
changed during recording, measurement is reset and starts again according
to the new trigger criteria.
• Searching is performed by applying search criteria to measured data just like
trigger criteria.
See "8.14.1 Searching by Trigger Criteria" (⇒ p. 216)
6.1 About Triggering
Trigger Source Description
Analog Trigger (⇒ p. 140)
Applies a trigger according to a signal input on an an-
alog channel.
(Level, In-Window, Out-of-Window, Period, Glitch,
Slope or Voltage Sag trigger)
Trigger filtering (
⇒ p. 143) and event counts (⇒ p.
143) can be set.
Logic Trigger (⇒ p. 153)
Applies a trigger according to signals input on logic
channels (Ch A to Ch D).
External Trigger (⇒ p. 160)
Applies a trigger according to an input signal at the
EXT TRIG terminal (External Trigger Input)
Timer Trigger (⇒ p. 156)
Applies triggers at specific intervals between start
and stop times
Manual Trigger (⇒ p. 159)
Applies a trigger by pressing an operating key
(FUNCTION MODE
→ F6 key).
T