Chapter 6 Trigger System
109
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
Logic Time
8ns~10ns
Set trigger logic time
Notes: The error of greater than, less than, equal to or not equal to the conditions is 6%.
Logic trigger operation steps between channels:
1)
Tap “Trigger” on the main menu to open the trigger menu, select logic trigger in the trigger type, and set the
logic trigger as follows, as shown in Figure 6-20:
⚫
Logic levels: CH1, CH3: High; CH2, CH4: Low; (without reference to the channel of logic operation, the
level selection is None to avoid interference to the logic operation);
⚫
Logic gate: AND;
⚫
Condition: <;
⚫
Logic time: 400ns.
Figure 6-20 Logic Trigger Setting Menu
Logic trigger setting description:
Logic level setting
After trigger source, select High, Low and None for the channel. The corresponding trigger level value is
displayed in the upper right corner of the display screen.
High
: means a value higher than the current trigger level, and the icon indication is “
”.
Low
: means a value lower than the current trigger level, and the icon indication is “
”.
None: This channel is invalid.
Summary of Contents for ATO1000 Series
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