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8.3.4 Trigger Examples
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Edge trigger: you need a change of status
Example: Channel A1, rising edge, threshold = 0V: triggers only if the signal status changes from negative to positive
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Level trigger: no need to pass the threshold
Example: Channel A1, high level, threshold = 0V: triggers only if the signal is positive
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Alarms only have level triggers
8.4 Trigger on Logic Channels
Selecting “Logic Channels” as the trigger source changes the window to show conditions for logic channel triggering.
Each of the logic channels is configured as a 1, 0 or X (don’t care). Use the arrow keys to move through the logic input
bits. Triggering may be configured as either an AND condition or an OR condition. This is applied to each channel.
Lastly, the trigger event is generated on either a Level or Edge condition.
Logic 1
Greater than 4.0 Volts
Logic 0
Less than 1.6 Volts
Figure 8.7
Logic Trigger Setup Screen
