YOKOGAWA DL 1540 User Manual

6-9
IM 701510-01E
Activating a Trigger
6
Explanation
Setting the trigger source and trigger state/level
The trigger state can be selected from the following.
L The trigger source level is above the preset trigger level.
H The trigger source level is below the preset trigger level.
X Not used as the trigger source.
The setting limit and resolution for the trigger level is the same as for the edge trigger. Refer
to page 6-2.
Selecting the clock channel (ClkCH)
Set the clock channel to “X” when no trigger in synchronization with the signal is activated,
and select from “CH1 - CH4” when a trigger in synchronization with the signal is activated.
The following trigger slopes can be selected.
Slope rising edge (changes from a level below the trigger level to one above the trigger
level)
Slope falling edge (changes from a level above the trigger level to one below the trigger
level)
Selecting the trigger condition: Condtn
• Activating a trigger using only the state pattern
Select the trigger condition from the following.
ENTER Activates a trigger when the combination (pattern) becomes true.
EXIT Activates a trigger when the pattern becomes false.
[Setting example]
CH1 : H
CH2 : L
CH3 : X
CH4 : X
Condition : ENTER
• Activating a trigger in synchronization with the clock signal
Select the trigger condition from the following.
TRUE Activates a trigger on the slope edge (riseor fall) of the clock channel when the
state pattern becomes true.
FALSE Activates a trigger on the slope edge of the clock channel when the state
pattern becomes false.
[Setting example]
CH1 : H
CH2 : L
CH4 : X
Clock CH : CH3
Condition : TRUE
Points to note when setting the pattern trigger
• If the trigger type setting is changed, the pattern trigger setting will be invalidated.
However, selecting the pattern trigger again will restore the previous settings.
• Auto-mode operations are carried out even if the trigger mode is set to auto-level mode.
• Select the trigger states for all trigger sources. Make sure to select the trigger slope for
the selected clock channel.
• If you want to activate a trigger in synchronization with the clock signal, make sure that
the pattern set-up time is 2 ns or more relative to the clock and that the hold-time is 0 ns
or less.
6.6 Setting the Pattern Trigger (Optional for DL1540/DL1540L)
CH1 input
CH2 input
Pattern
becomes false.
Pattern
becomes true.
Trigger conditions are met
CH1 input
CH2 input
Pattern
becomes false
Pattern
becomes true
Trigger conditions are met
Pattern
becomes
false
Pattern
becomes
true
CH3 input

YOKOGAWA DL 1540 Specifications

General

Brand	YOKOGAWA
Model	DL 1540
Category	Test Equipment
Language	English