Hioki 8860-50, Instruction Manual

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6.4 Setting Combining Logic (AND/OR) for Multiple Trigger Sources
139
6
Chapte
r 6
T
rigger Setting
s
Analog, logic, external and timer trigger criteria can be combined by AND/OR
logic to define complex trigger criteria.
Description
When the trigger combining logic (Source (AND/OR)) is set to [AND]
If trigger criteria are already met when you press the START key, no triggering
occurs. Triggering occurs only after all trigger sources have ceased to meet the
criteria at once, and are subsequently met again.
Setting Example
To apply a trigger when the upslope (

) of the waveform crosses zero volts
Triggering occurs as follows in the AND and OR cases.
6.4 Setting Combining Logic (AND/OR) for
Multiple Trigger Sources
Trigger Source (AND/OR) Setting
To open the screen: Press the
SET
key

Select with the
SUB MENU
keys

Trigger Settings screen
See Screen Layout (p. 35)
(Memory Function case)
Operating Key Procedure
1
CURSOR
Move the cursor to the [Source (AND/OR)] item.
2
F1 to F8 Select the combining logic for trigger criteria.
OR
Triggering occurs when any one of the
specified trigger source criteria is met.
(default setting)
AND
Triggering occurs only when all of the
specified trigger source criteria are met.
Channel Trigger Trigger Level Slope Filter
CH1, CH2 Level 0.00 V

Off
[AND]
CH2
CH1
One waveform has crossed
above 0V as the other crosses
on the upslope
[OR]
Either waveform crosses 0V on
the upslope
0 V
0 V
T
T T
T
CH2
CH1
Start Measurement
Trigger criteria have been met,
but no trigger occurs.
Trigger criteria have been met,
but no trigger occurs.
If both [Start] and [Stop] trigger timing criteria are combined, the simultaneous trigger
sources are logically ANDed.