Chapter 5 Trigger System
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Figure 5-19 Pulse Width Time Adjustment Interface
5.4 Logic Trigger
Trigger happens when the level between analog channels satisfies a certain logical operation (AND, OR, NAND,
NOR) and the signal voltage reaches the set trigger level and the trigger logic width (8ns~10s). Logic trigger
menu descriptions are shown in the table below:
Trigger
Option
Setting
Description
Trigger
Source
CH1
High
Set CH1 as high
Low
Set CH1 as low
None
Set CH1 as none
CH2
High
Set CH2 as high
Low
Set CH2 as low
None
Set CH2 as none
CH3
High
Set CH3 as high
Low
Set CH3 as low
None
Set CH3 as none
CH4
High
Set CH4 as high
Low
Set CH4 as low
None
Set CH4 as none
Trigger
Logic
AND
Select the logic of trigger source as “AND”
OR
Select the logic of trigger source as “OR”
NAND
Select the logic of trigger source as “NAND”
NOR
Select the logic of trigger source as “NOR”
Trigger
Condition
Change to true value
Trigger when the logic changes to true value
Change to false value
Trigger when the logic changes to false value
<, >, =, ≠T
If logic status for hold time as <, >, =, ≠T, then
trigger
