Chapter 2 Front Panel Operations RIGOL
M300 User’s Guide
Alarm Trigger
To use the alarm trigger mode, configure the alarm by referring to “Alarm
Configuration” and select alarm trigger mode, then select an alarm channel. The
instrument executes a scan when an alarm is generated in the specified alarm
channel.
In alarm trigger mode, if the number of scans is set to “Infinite”, after you press
Run/Stop at the front panel, the instrument enters the wait-for-trigger state. Then
the instrument executes a scan when an alarm is generated in the specified alarm
channel. Press and hold Run/Stop and the instrument will exit the wait-for-trigger
state.
If the number of scans is a specific value, after you press Run/Stop at the front
panel, the instrument enters the wait-for-trigger state. Then the instrument executes
a scan when an alarm is generated in the specified alarm channel. After executing
the specified number of alarm triggers, the instrument exits the wait-for-trigger
state.
During the scan, the instrument stores the measurement data, scaling data and
alarm data in the non-volatile memory automatically.
The instrument triggers a scan when the trigger condition is met and scans the
channels in the scan list in ascending order (from slot 1 to slot 5) automatically.
Operations on any channels of the module of which the channel is in the scan list
are forbidden. You can press and hold Run/Stop at the front panel to stop the
scan but after the scan has stopped, it cannot be resumed. When a new scan is
executed, all the readings in the memory will be cleared.
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