4 Features and Functions
112 Keysight 34970A/34972A User’s Guide
Scan once
In this configuration, the instrument waits for either a front-panel key press or a
remote interface command before sweeping through the scan list.
– All readings from the scan are stored in non-volatile memory. Readings
accumulate in memory until the scan is terminated (until the scan count is
reached or until you abort the scan).
– You can specify a scan count which sets the number of front-panel key presses
or scan trigger commands that will be accepted before terminating the scan.
See “Scan Count” on page 117 for more information.
– Mx+B scaling and alarm limits are applied to measurements during a Scan
Once operation and all data is stored in non-volatile memory.
– Front-Panel Operation:
MANUAL SCAN
To initiate the scan and store all readings in memory, press . The ONCE
annunciator turns on as a reminder that a Scan Once operation is in progress.
– Remote Interface Operation: The following program segment configures the
instrument for a Scan Once operation.
To stop a scan, press and hold .
TRIG:SOURCE BUS Select the bus (once) configuration
TRIG:COUNT 2 Sweep the scan list 2 times
INIT Initiate the scan
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