Hioki MR8827, Instruction Manual

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Logic Signal Triggers (Logic Trigger)
9.4 Logic Signal Triggers (Logic Trigger)
Follow the steps for below to configure logic triggers. These settings can be configured from the [Logic
Trig] sheet of the Trigger settings window.
• Input signals on logic channels serve as the trigger source.
Triggering occurs when the specified trigger pattern and logical probe combination criteria (AND/OR)
are met.
• The trigger detection method can be selected according to whether a trigger is applied or not when the
criteria are already met at the start of measurement.
• By using the trigger filter, triggering can be limited so as to occur only when trigger criteria are met for at
least the specified filter width.
Procedure
Press the DISP key to open the Waveform screen, and then press the TRIG.SET key to open the trigger settings
window ( [Logic Trg.] sheet).
1
Move the cursor to the channel for which you
want to change the settings.
1. Logic Channels 2. 3.
2
Use the F keys to select the settings.
1. Trigger Sets the trigger probe logic (AND/OR).
Off Logic triggering is disabled. (Default setting)
OR Triggering occurs when the input signal logic matches any setting in the trigger
pattern.
AND Triggering occurs only when the input signal logic matches all settings in the
trigger pattern.
2. Filter Sets the filter width (trigger filter) for triggering. (If necessary)
Suppresses triggering from noise. (p. 193)
Off Trigger filtering disabled. (Default setting)
0.1 to 10 Trigger filtering enabled.
The filter width is set as a number of divisions.
Off Trigger filtering disabled.
(Default setting)
On Trigger filtering enabled.
Filter width 10 ms
(5 ms when the sampling rate is 100 ns/S)
9
Trigger Settings