YOKOGAWA DL6000 Series

2-6
IM DLM6054-01EN
2.3 Triggering
A trigger is a cue used to display the waveform on the screen. A trigger occurs when the specified
trigger condition is met, and a waveform is displayed on the screen.
        section 6.1 for the procedure
The trigger mode determines the conditions for updating the displayed waveforms. There are 5
different trigger modes.
Auto Mode
The DL6000/DLM6000 automatically updates the displayed waveform if the trigger condition is not
met within the timeout value (approximately 100ms).
Auto Level Mode
The DL6000/DLM6000 updates the displayed waveform just like in Auto mode except that if the
edge trigger is being used and the time limit passes without the trigger condition being met, the
DL6000/DLM6000 will measure the amplitude of the waveform and automatically set the trigger
level to the amplitude’s center value.
Normal Mode
The DL6000/DLM6000 will only update the displayed waveform when the trigger condition is met.
There is no automatic updating when the DL6000/DLM6000 does not trigger.
N Single Mode
The DL6000/DLM6000 acquires signals and stores them to separate memory locations each time
the trigger conditions are met until a specified number of signals have been acquired. Then, the
DL6000/DLM6000 displays the waveforms of all the acquired signals.
Single Mode
When the trigger conditions are met, the DL6000/DLM6000 updates the displayed waveform once
and stops signal acquisition. When you press SINGLE on the front panel, the DL6000/DLM6000
acquires waveforms in Single mode.
            sections 6.3 to 6.13 for the procedures
The following trigger types are available.
Edge Trigger (EDGE)
The DL6000/DLM6000 triggers on trigger source edges (rising or falling edges). You can set the trigger
source to one of the measured input signals, to an external trigger signal, or to the DL6000/DLM6000
power source. When you set the trigger to the DL6000/DLM6000 power source, the DL6000/DLM6000
only triggers on rising edges.
Edge Qualified and Logic Edge Qualified Triggers (ENHANCED)
The DL6000/DLM6000 triggers on the edge of a single trigger source when the conditions of the input
signals meet the specified qualifications. You cannot trigger using combinations of analog and logic
signal qualifications.
L
H
H
CH1
CH2
Qualifications: CH1 = H, CH2 = L, AND; Trigger source: CH3,
where L is low level and H is high level
Trigger
CH3
CH1
CH2
H
H
L
L
L
Qualifications
not met
Qualifications
not met
Qualifications
met
Trigger