4 Features and Functions
154 Keysight 34970A/34972A User’s Guide
– The default values for the upper and lower alarm limits are “0”. The lower limit
must always be less than or equal to the upper limit, even if you are using only
one of the limits.
– For details on configuring alarms on the multifunction module, see “Using
Alarms With the Multifunction Module” on page 159.
–A Factory Reset (*RST command) clears all alarm limits and turns off all
alarms. An Instrument Preset (SYSTem:PRESet command) or Card Reset
(SYSTem:CPON command) does not clear the alarm limits and does not turn off
alarms.
– Front-Panel Operation: To select the alarm for use on the active channel,
choose from the following items.
NO ALARM , USE ALARM 1 , ... USE ALARM 4
Then, choose from the following alarm conditions.
HI+LO ALARMS , HI ALARM ONLY , LO ALARM ONLY
Then, set the desired limit values and exit the menu. Note that the instrument
does not start evaluating the alarm conditions until you exit the Alarm menu.
– Remote Interface Operation: To assign the alarm number to report any alarm
conditions on the specified channels, use the following command (if not
assigned, all alarms on all channels are reported on Alarm 1 by default).
OUTPUT:ALARM2:SOURCE (@103,212)
– To set the upper and lower alarm limits on the specified channels, use the
following commands.
CALC:LIMIT:UPPER 5.25,(@103,212)
CALC:LIMIT:LOWER 0.025,(@103,212)
– To enable the upper and lower alarm limits on the specified channels, use the
following commands.
CALC:LIMIT:UPPER:STATE ON,(@103,212)
CALC:LIMIT:LOWER:STATE ON,(@103,212)
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