Hioki 8847, Instruction Manual

Page: 171 / 372

9.4 Triggering by Logic Signals (Logic Trigger)
161
9
Chapt
er
9
T
rigger
Set
tings
3. Trigger Pattern
Make the settings of the logic trigger pattern.
Select
Setting Example
Example 1: Trigger when the input signal matches any of the following cri-
teria:
Channel 1 (LA1): HIGH level
Channel 2 (LA2): LOW level
Trigger: OR
LA [1, 2, 3, 4]: [1 0 X X ]
Triggering occurs when the LA1 or LA2 trig-
ger criteria are met.
Example 2: Triggering occurs when the
input signal matches both of the following criteria:
Channel 1 (LA1): HIGH level
Channel 2 (LA2): LOW level
Trigger: AND
LA [1, 2, 3, 4]: [1 0 X X ]
X
Ignore signal. (default setting)
0
Trigger at LOW signal level.
1
Trigger at HIGH signal level.
To copy the setting to another channel
The Trigger settings window ( [Logic Trig] sheet) can be used to copy a setting.
See: "8.9 Copying settings to other channels (calculation No.) (Copy function)" (

p.139)
Trigger Pattern
T
LA1 1
LA2 0
LA3 X
LA4 X
Trigger Pattern
T
LA1 1
LA2 0
LA3 X
LA4 X
T
• If the conditions are met already when measurement is started (AND: all trig-
ger patterns are met, OR: one trigger pattern is met), triggering does not occur.
Triggering only occurs if the conditions are removed and then met again.
• Triggers for standard logic channels (LA, LB, LC, and LD) are enabled regard-
less of the logic waveform display or unit type.